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Update Azure auth to support instance metadata service (#684)

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This commit is contained in:
Jonathan Camp 2018-10-23 10:03:31 +02:00 committed by Ludovic Fernandez
parent 9b2a3a1873
commit 1151b4e3be
15 changed files with 2088 additions and 160 deletions
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16
Gopkg.lock generated
View file

@ -21,12 +21,13 @@
version = "v19.1.0"
[[projects]]
digest = "1:6b05ebcb43e299f0319de63de668c804a4c3a2dbc12da392a6720de500b10358"
digest = "1:0b2163d4a757420217d4e0461128bf5c96be6d1614513b31d35029872a07ad40"
name = "github.com/Azure/go-autorest"
packages = [
"autorest",
"autorest/adal",
"autorest/azure",
"autorest/azure/auth",
"autorest/date",
"autorest/to",
"autorest/validation",
@ -166,6 +167,14 @@
revision = "06ea1031745cb8b3dab3f6a236daf2b0aa468b7e"
version = "v3.2.0"
[[projects]]
branch = "master"
digest = "1:ec6271918b59b872a2d25e374569a4f75f1839d91e4191470c297b7eaaaf7641"
name = "github.com/dimchansky/utfbom"
packages = ["."]
pruneopts = "NUT"
revision = "5448fe645cb1964ba70ac8f9f2ffe975e61a536c"
[[projects]]
branch = "master"
digest = "1:6b873be0e0ec65484ee086d02143f31332e363b968fdc6d6663160fa98fda505"
@ -415,13 +424,15 @@
[[projects]]
branch = "master"
digest = "1:1683f109d69f4a055621eeb7f396d37121c1d2a259b3a77030c3ce5a1b8c92e9"
digest = "1:af471e1efb6318085c2c27ba0bcbf659feab5f7044388c0c0104f456831eb281"
name = "golang.org/x/crypto"
packages = [
"ed25519",
"ed25519/internal/edwards25519",
"ocsp",
"pbkdf2",
"pkcs12",
"pkcs12/internal/rc2",
"ssh/terminal",
]
pruneopts = "NUT"
@ -577,6 +588,7 @@
"github.com/Azure/go-autorest/autorest",
"github.com/Azure/go-autorest/autorest/adal",
"github.com/Azure/go-autorest/autorest/azure",
"github.com/Azure/go-autorest/autorest/azure/auth",
"github.com/Azure/go-autorest/autorest/to",
"github.com/JamesClonk/vultr/lib",
"github.com/OpenDNS/vegadns2client",

2
cli.go
View file

@ -250,7 +250,7 @@ Here is an example bash command using the CloudFlare DNS provider:
fmt.Fprintln(w)
fmt.Fprintln(w, "\talidns:\tALICLOUD_POLLING_INTERVAL, ALICLOUD_PROPAGATION_TIMEOUT, ALICLOUD_TTL, ALICLOUD_HTTP_TIMEOUT")
fmt.Fprintln(w, "\tauroradns:\tAURORA_POLLING_INTERVAL, AURORA_PROPAGATION_TIMEOUT, AURORA_TTL")
fmt.Fprintln(w, "\tazure:\tAZURE_POLLING_INTERVAL, AZURE_PROPAGATION_TIMEOUT, AZURE_TTL")
fmt.Fprintln(w, "\tazure:\tAZURE_POLLING_INTERVAL, AZURE_PROPAGATION_TIMEOUT, AZURE_TTL, AZURE_METADATA_ENDPOINT")
fmt.Fprintln(w, "\tbluecat:\tBLUECAT_POLLING_INTERVAL, BLUECAT_PROPAGATION_TIMEOUT, BLUECAT_TTL, BLUECAT_HTTP_TIMEOUT")
fmt.Fprintln(w, "\tcloudflare:\tCLOUDFLARE_POLLING_INTERVAL, CLOUDFLARE_PROPAGATION_TIMEOUT, CLOUDFLARE_TTL, CLOUDFLARE_HTTP_TIMEOUT")
fmt.Fprintln(w, "\tcloudxns:\tCLOUDXNS_POLLING_INTERVAL, CLOUDXNS_PROPAGATION_TIMEOUT, CLOUDXNS_TTL, CLOUDXNS_HTTP_TIMEOUT")

165
providers/dns/azure/azure.go
View file

@ -7,6 +7,7 @@ import (
"context"
"errors"
"fmt"
"io/ioutil"
"net/http"
"strings"
"time"
@ -15,18 +16,26 @@ import (
"github.com/Azure/go-autorest/autorest"
"github.com/Azure/go-autorest/autorest/adal"
"github.com/Azure/go-autorest/autorest/azure"
"github.com/Azure/go-autorest/autorest/azure/auth"
"github.com/Azure/go-autorest/autorest/to"
"github.com/xenolf/lego/acme"
"github.com/xenolf/lego/platform/config/env"
)
const defaultMetadataEndpoint = "http://169.254.169.254"
// Config is used to configure the creation of the DNSProvider
type Config struct {
ClientID string
ClientSecret string
SubscriptionID string
TenantID string
ResourceGroup string
// optional if using instance metadata service
ClientID string
ClientSecret string
TenantID string
SubscriptionID string
ResourceGroup string
MetadataEndpoint string
PropagationTimeout time.Duration
PollingInterval time.Duration
TTL int
@ -39,29 +48,26 @@ func NewDefaultConfig() *Config {
TTL: env.GetOrDefaultInt("AZURE_TTL", 60),
PropagationTimeout: env.GetOrDefaultSecond("AZURE_PROPAGATION_TIMEOUT", 2*time.Minute),
PollingInterval: env.GetOrDefaultSecond("AZURE_POLLING_INTERVAL", 2*time.Second),
MetadataEndpoint: env.GetOrFile("AZURE_METADATA_ENDPOINT"),
}
}
// DNSProvider is an implementation of the acme.ChallengeProvider interface
type DNSProvider struct {
config *Config
config *Config
authorizer autorest.Authorizer
}
// NewDNSProvider returns a DNSProvider instance configured for azure.
// Credentials must be passed in the environment variables: AZURE_CLIENT_ID,
// AZURE_CLIENT_SECRET, AZURE_SUBSCRIPTION_ID, AZURE_TENANT_ID, AZURE_RESOURCE_GROUP
// Credentials can be passed in the environment variables:
// AZURE_CLIENT_ID, AZURE_CLIENT_SECRET, AZURE_SUBSCRIPTION_ID, AZURE_TENANT_ID, AZURE_RESOURCE_GROUP
// If the credentials are _not_ set via the environment,
// then it will attempt to get a bearer token via the instance metadata service.
// see: https://github.com/Azure/go-autorest/blob/v10.14.0/autorest/azure/auth/auth.go#L38-L42
func NewDNSProvider() (*DNSProvider, error) {
values, err := env.Get("AZURE_CLIENT_ID", "AZURE_CLIENT_SECRET", "AZURE_SUBSCRIPTION_ID", "AZURE_TENANT_ID", "AZURE_RESOURCE_GROUP")
if err != nil {
return nil, fmt.Errorf("azure: %v", err)
}
config := NewDefaultConfig()
config.ClientID = values["AZURE_CLIENT_ID"]
config.ClientSecret = values["AZURE_CLIENT_SECRET"]
config.SubscriptionID = values["AZURE_SUBSCRIPTION_ID"]
config.TenantID = values["AZURE_TENANT_ID"]
config.ResourceGroup = values["AZURE_RESOURCE_GROUP"]
config.SubscriptionID = env.GetOrFile("AZURE_SUBSCRIPTION_ID")
config.ResourceGroup = env.GetOrFile("AZURE_RESOURCE_GROUP")
return NewDNSProviderConfig(config)
}
@ -73,8 +79,8 @@ func NewDNSProviderCredentials(clientID, clientSecret, subscriptionID, tenantID,
config := NewDefaultConfig()
config.ClientID = clientID
config.ClientSecret = clientSecret
config.SubscriptionID = subscriptionID
config.TenantID = tenantID
config.SubscriptionID = subscriptionID
config.ResourceGroup = resourceGroup
return NewDNSProviderConfig(config)
@ -86,11 +92,40 @@ func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
return nil, errors.New("azure: the configuration of the DNS provider is nil")
}
if config.ClientID == "" || config.ClientSecret == "" || config.SubscriptionID == "" || config.TenantID == "" || config.ResourceGroup == "" {
return nil, errors.New("azure: some credentials information are missing")
if config.HTTPClient == nil {
config.HTTPClient = http.DefaultClient
}
return &DNSProvider{config: config}, nil
authorizer, err := getAuthorizer(config)
if err != nil {
return nil, err
}
if config.SubscriptionID == "" {
subsID, err := getMetadata(config, "subscriptionId")
if err != nil {
return nil, fmt.Errorf("azure: %v", err)
}
if subsID == "" {
return nil, errors.New("azure: SubscriptionID is missing")
}
config.SubscriptionID = subsID
}
if config.ResourceGroup == "" {
resGroup, err := getMetadata(config, "resourceGroupName")
if err != nil {
return nil, fmt.Errorf("azure: %v", err)
}
if resGroup == "" {
return nil, errors.New("azure: ResourceGroup is missing")
}
config.ResourceGroup = resGroup
}
return &DNSProvider{config: config, authorizer: authorizer}, nil
}
// Timeout returns the timeout and interval to use when checking for DNS
@ -110,12 +145,7 @@ func (d *DNSProvider) Present(domain, token, keyAuth string) error {
}
rsc := dns.NewRecordSetsClient(d.config.SubscriptionID)
spt, err := d.newServicePrincipalToken(azure.PublicCloud.ResourceManagerEndpoint)
if err != nil {
return fmt.Errorf("azure: %v", err)
}
rsc.Authorizer = autorest.NewBearerAuthorizer(spt)
rsc.Authorizer = d.authorizer
relative := toRelativeRecord(fqdn, acme.ToFqdn(zone))
rec := dns.RecordSet{
@ -145,12 +175,7 @@ func (d *DNSProvider) CleanUp(domain, token, keyAuth string) error {
relative := toRelativeRecord(fqdn, acme.ToFqdn(zone))
rsc := dns.NewRecordSetsClient(d.config.SubscriptionID)
spt, err := d.newServicePrincipalToken(azure.PublicCloud.ResourceManagerEndpoint)
if err != nil {
return fmt.Errorf("azure: %v", err)
}
rsc.Authorizer = autorest.NewBearerAuthorizer(spt)
rsc.Authorizer = d.authorizer
_, err = rsc.Delete(ctx, d.config.ResourceGroup, zone, relative, dns.TXT, "")
if err != nil {
@ -166,14 +191,8 @@ func (d *DNSProvider) getHostedZoneID(ctx context.Context, fqdn string) (string,
return "", err
}
// Now we want to to Azure and get the zone.
spt, err := d.newServicePrincipalToken(azure.PublicCloud.ResourceManagerEndpoint)
if err != nil {
return "", err
}
dc := dns.NewZonesClient(d.config.SubscriptionID)
dc.Authorizer = autorest.NewBearerAuthorizer(spt)
dc.Authorizer = d.authorizer
zone, err := dc.Get(ctx, d.config.ResourceGroup, acme.UnFqdn(authZone))
if err != nil {
@ -184,17 +203,61 @@ func (d *DNSProvider) getHostedZoneID(ctx context.Context, fqdn string) (string,
return to.String(zone.Name), nil
}
// NewServicePrincipalTokenFromCredentials creates a new ServicePrincipalToken using values of the
// passed credentials map.
func (d *DNSProvider) newServicePrincipalToken(scope string) (*adal.ServicePrincipalToken, error) {
oauthConfig, err := adal.NewOAuthConfig(azure.PublicCloud.ActiveDirectoryEndpoint, d.config.TenantID)
if err != nil {
return nil, err
}
return adal.NewServicePrincipalToken(*oauthConfig, d.config.ClientID, d.config.ClientSecret, scope)
}
// Returns the relative record to the domain
func toRelativeRecord(domain, zone string) string {
return acme.UnFqdn(strings.TrimSuffix(domain, zone))
}
func getAuthorizer(config *Config) (autorest.Authorizer, error) {
if config.ClientID != "" && config.ClientSecret != "" && config.TenantID != "" {
oauthConfig, err := adal.NewOAuthConfig(azure.PublicCloud.ActiveDirectoryEndpoint, config.TenantID)
if err != nil {
return nil, err
}
spt, err := adal.NewServicePrincipalToken(*oauthConfig, config.ClientID, config.ClientSecret, azure.PublicCloud.ResourceManagerEndpoint)
if err != nil {
return nil, err
}
spt.SetSender(config.HTTPClient)
return autorest.NewBearerAuthorizer(spt), nil
}
return auth.NewAuthorizerFromEnvironment()
}
// Fetches metadata from environment or he instance metadata service
// borrowed from https://github.com/Microsoft/azureimds/blob/master/imdssample.go
func getMetadata(config *Config, field string) (string, error) {
metadataEndpoint := config.MetadataEndpoint
if len(metadataEndpoint) == 0 {
metadataEndpoint = defaultMetadataEndpoint
}
resource := fmt.Sprintf("%s/metadata/instance/compute/%s", metadataEndpoint, field)
req, err := http.NewRequest(http.MethodGet, resource, nil)
if err != nil {
return "", err
}
req.Header.Add("Metadata", "True")
q := req.URL.Query()
q.Add("format", "text")
q.Add("api-version", "2017-12-01")
req.URL.RawQuery = q.Encode()
resp, err := config.HTTPClient.Do(req)
if err != nil {
return "", err
}
defer resp.Body.Close()
respBody, err := ioutil.ReadAll(resp.Body)
if err != nil {
return "", err
}
return string(respBody[:]), nil
}

153
providers/dns/azure/azure_test.go
View file

@ -1,6 +1,8 @@
package azure
import (
"net/http"
"net/http/httptest"
"testing"
"time"
@ -27,76 +29,21 @@ func TestNewDNSProvider(t *testing.T) {
envVars: map[string]string{
"AZURE_CLIENT_ID": "A",
"AZURE_CLIENT_SECRET": "B",
"AZURE_SUBSCRIPTION_ID": "C",
"AZURE_TENANT_ID": "D",
"AZURE_TENANT_ID": "C",
"AZURE_SUBSCRIPTION_ID": "D",
"AZURE_RESOURCE_GROUP": "E",
},
},
{
desc: "missing credentials",
envVars: map[string]string{
"AZURE_CLIENT_ID": "",
"AZURE_CLIENT_SECRET": "",
"AZURE_SUBSCRIPTION_ID": "",
"AZURE_TENANT_ID": "",
"AZURE_RESOURCE_GROUP": "",
},
expected: "azure: some credentials information are missing: AZURE_CLIENT_ID,AZURE_CLIENT_SECRET,AZURE_SUBSCRIPTION_ID,AZURE_TENANT_ID,AZURE_RESOURCE_GROUP",
},
{
desc: "missing client id",
desc: "missing client ID",
envVars: map[string]string{
"AZURE_CLIENT_ID": "",
"AZURE_CLIENT_SECRET": "B",
"AZURE_SUBSCRIPTION_ID": "C",
"AZURE_TENANT_ID": "D",
"AZURE_TENANT_ID": "C",
"AZURE_SUBSCRIPTION_ID": "D",
"AZURE_RESOURCE_GROUP": "E",
},
expected: "azure: some credentials information are missing: AZURE_CLIENT_ID",
},
{
desc: "missing client secret",
envVars: map[string]string{
"AZURE_CLIENT_ID": "A",
"AZURE_CLIENT_SECRET": "",
"AZURE_SUBSCRIPTION_ID": "C",
"AZURE_TENANT_ID": "D",
"AZURE_RESOURCE_GROUP": "E",
},
expected: "azure: some credentials information are missing: AZURE_CLIENT_SECRET",
},
{
desc: "missing subscription id",
envVars: map[string]string{
"AZURE_CLIENT_ID": "A",
"AZURE_CLIENT_SECRET": "B",
"AZURE_SUBSCRIPTION_ID": "",
"AZURE_TENANT_ID": "D",
"AZURE_RESOURCE_GROUP": "E",
},
expected: "azure: some credentials information are missing: AZURE_SUBSCRIPTION_ID",
},
{
desc: "missing tenant id",
envVars: map[string]string{
"AZURE_CLIENT_ID": "A",
"AZURE_CLIENT_SECRET": "B",
"AZURE_SUBSCRIPTION_ID": "C",
"AZURE_TENANT_ID": "",
"AZURE_RESOURCE_GROUP": "E",
},
expected: "azure: some credentials information are missing: AZURE_TENANT_ID",
},
{
desc: "missing resource group",
envVars: map[string]string{
"AZURE_CLIENT_ID": "A",
"AZURE_CLIENT_SECRET": "B",
"AZURE_SUBSCRIPTION_ID": "C",
"AZURE_TENANT_ID": "D",
"AZURE_RESOURCE_GROUP": "",
},
expected: "azure: some credentials information are missing: AZURE_RESOURCE_GROUP",
expected: "failed to get oauth token from client credentials: parameter 'clientID' cannot be empty",
},
}
@ -128,64 +75,48 @@ func TestNewDNSProviderConfig(t *testing.T) {
subscriptionID string
tenantID string
resourceGroup string
handler func(w http.ResponseWriter, r *http.Request)
expected string
}{
{
desc: "success",
clientID: "A",
clientSecret: "B",
subscriptionID: "C",
tenantID: "D",
tenantID: "C",
subscriptionID: "D",
resourceGroup: "E",
},
{
desc: "missing credentials",
expected: "azure: some credentials information are missing",
},
{
desc: "missing client id",
clientID: "",
clientSecret: "B",
subscriptionID: "C",
tenantID: "D",
resourceGroup: "E",
expected: "azure: some credentials information are missing",
},
{
desc: "missing client secret",
clientID: "A",
clientSecret: "",
subscriptionID: "C",
tenantID: "D",
resourceGroup: "E",
expected: "azure: some credentials information are missing",
},
{
desc: "missing subscription id",
desc: "SubscriptionID missing",
clientID: "A",
clientSecret: "B",
tenantID: "C",
subscriptionID: "",
tenantID: "D",
resourceGroup: "E",
expected: "azure: some credentials information are missing",
},
{
desc: "missing tenant id",
clientID: "A",
clientSecret: "B",
subscriptionID: "C",
tenantID: "",
resourceGroup: "E",
expected: "azure: some credentials information are missing",
},
{
desc: "missing resource group",
clientID: "A",
clientSecret: "B",
subscriptionID: "C",
tenantID: "D",
resourceGroup: "",
expected: "azure: some credentials information are missing",
expected: "azure: SubscriptionID is missing",
},
{
desc: "ResourceGroup missing",
clientID: "A",
clientSecret: "B",
tenantID: "C",
subscriptionID: "D",
resourceGroup: "",
expected: "azure: ResourceGroup is missing",
},
{
desc: "use metadata",
clientID: "A",
clientSecret: "B",
tenantID: "C",
subscriptionID: "",
resourceGroup: "",
handler: func(w http.ResponseWriter, r *http.Request) {
_, err := w.Write([]byte("foo"))
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
}
},
},
}
@ -198,6 +129,16 @@ func TestNewDNSProviderConfig(t *testing.T) {
config.TenantID = test.tenantID
config.ResourceGroup = test.resourceGroup
handler := http.NewServeMux()
server := httptest.NewServer(handler)
defer server.Close()
if test.handler == nil {
handler.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {})
} else {
handler.HandleFunc("/", test.handler)
}
config.MetadataEndpoint = server.URL
p, err := NewDNSProviderConfig(config)
if len(test.expected) == 0 {

444
vendor/github.com/Azure/go-autorest/autorest/azure/auth/auth.go generated vendored Normal file
View file

@ -0,0 +1,444 @@
package auth
// Copyright 2017 Microsoft Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import (
"bytes"
"crypto/rsa"
"crypto/x509"
"encoding/binary"
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"log"
"os"
"strings"
"unicode/utf16"
"github.com/Azure/go-autorest/autorest"
"github.com/Azure/go-autorest/autorest/adal"
"github.com/Azure/go-autorest/autorest/azure"
"github.com/dimchansky/utfbom"
"golang.org/x/crypto/pkcs12"
)
// NewAuthorizerFromEnvironment creates an Authorizer configured from environment variables in the order:
// 1. Client credentials
// 2. Client certificate
// 3. Username password
// 4. MSI
func NewAuthorizerFromEnvironment() (autorest.Authorizer, error) {
settings, err := getAuthenticationSettings()
if err != nil {
return nil, err
}
if settings.resource == "" {
settings.resource = settings.environment.ResourceManagerEndpoint
}
return settings.getAuthorizer()
}
// NewAuthorizerFromEnvironmentWithResource creates an Authorizer configured from environment variables in the order:
// 1. Client credentials
// 2. Client certificate
// 3. Username password
// 4. MSI
func NewAuthorizerFromEnvironmentWithResource(resource string) (autorest.Authorizer, error) {
settings, err := getAuthenticationSettings()
if err != nil {
return nil, err
}
settings.resource = resource
return settings.getAuthorizer()
}
type settings struct {
tenantID string
clientID string
clientSecret string
certificatePath string
certificatePassword string
username string
password string
envName string
resource string
environment azure.Environment
}
func getAuthenticationSettings() (s settings, err error) {
s = settings{
tenantID: os.Getenv("AZURE_TENANT_ID"),
clientID: os.Getenv("AZURE_CLIENT_ID"),
clientSecret: os.Getenv("AZURE_CLIENT_SECRET"),
certificatePath: os.Getenv("AZURE_CERTIFICATE_PATH"),
certificatePassword: os.Getenv("AZURE_CERTIFICATE_PASSWORD"),
username: os.Getenv("AZURE_USERNAME"),
password: os.Getenv("AZURE_PASSWORD"),
envName: os.Getenv("AZURE_ENVIRONMENT"),
resource: os.Getenv("AZURE_AD_RESOURCE"),
}
if s.envName == "" {
s.environment = azure.PublicCloud
} else {
s.environment, err = azure.EnvironmentFromName(s.envName)
}
return
}
func (settings settings) getAuthorizer() (autorest.Authorizer, error) {
//1.Client Credentials
if settings.clientSecret != "" {
config := NewClientCredentialsConfig(settings.clientID, settings.clientSecret, settings.tenantID)
config.AADEndpoint = settings.environment.ActiveDirectoryEndpoint
config.Resource = settings.resource
return config.Authorizer()
}
//2. Client Certificate
if settings.certificatePath != "" {
config := NewClientCertificateConfig(settings.certificatePath, settings.certificatePassword, settings.clientID, settings.tenantID)
config.AADEndpoint = settings.environment.ActiveDirectoryEndpoint
config.Resource = settings.resource
return config.Authorizer()
}
//3. Username Password
if settings.username != "" && settings.password != "" {
config := NewUsernamePasswordConfig(settings.username, settings.password, settings.clientID, settings.tenantID)
config.AADEndpoint = settings.environment.ActiveDirectoryEndpoint
config.Resource = settings.resource
return config.Authorizer()
}
// 4. MSI
config := NewMSIConfig()
config.Resource = settings.resource
config.ClientID = settings.clientID
return config.Authorizer()
}
// NewAuthorizerFromFile creates an Authorizer configured from a configuration file.
func NewAuthorizerFromFile(baseURI string) (autorest.Authorizer, error) {
fileLocation := os.Getenv("AZURE_AUTH_LOCATION")
if fileLocation == "" {
return nil, errors.New("auth file not found. Environment variable AZURE_AUTH_LOCATION is not set")
}
contents, err := ioutil.ReadFile(fileLocation)
if err != nil {
return nil, err
}
// Auth file might be encoded
decoded, err := decode(contents)
if err != nil {
return nil, err
}
file := file{}
err = json.Unmarshal(decoded, &file)
if err != nil {
return nil, err
}
resource, err := getResourceForToken(file, baseURI)
if err != nil {
return nil, err
}
config, err := adal.NewOAuthConfig(file.ActiveDirectoryEndpoint, file.TenantID)
if err != nil {
return nil, err
}
spToken, err := adal.NewServicePrincipalToken(*config, file.ClientID, file.ClientSecret, resource)
if err != nil {
return nil, err
}
return autorest.NewBearerAuthorizer(spToken), nil
}
// File represents the authentication file
type file struct {
ClientID string `json:"clientId,omitempty"`
ClientSecret string `json:"clientSecret,omitempty"`
SubscriptionID string `json:"subscriptionId,omitempty"`
TenantID string `json:"tenantId,omitempty"`
ActiveDirectoryEndpoint string `json:"activeDirectoryEndpointUrl,omitempty"`
ResourceManagerEndpoint string `json:"resourceManagerEndpointUrl,omitempty"`
GraphResourceID string `json:"activeDirectoryGraphResourceId,omitempty"`
SQLManagementEndpoint string `json:"sqlManagementEndpointUrl,omitempty"`
GalleryEndpoint string `json:"galleryEndpointUrl,omitempty"`
ManagementEndpoint string `json:"managementEndpointUrl,omitempty"`
}
func decode(b []byte) ([]byte, error) {
reader, enc := utfbom.Skip(bytes.NewReader(b))
switch enc {
case utfbom.UTF16LittleEndian:
u16 := make([]uint16, (len(b)/2)-1)
err := binary.Read(reader, binary.LittleEndian, &u16)
if err != nil {
return nil, err
}
return []byte(string(utf16.Decode(u16))), nil
case utfbom.UTF16BigEndian:
u16 := make([]uint16, (len(b)/2)-1)
err := binary.Read(reader, binary.BigEndian, &u16)
if err != nil {
return nil, err
}
return []byte(string(utf16.Decode(u16))), nil
}
return ioutil.ReadAll(reader)
}
func getResourceForToken(f file, baseURI string) (string, error) {
// Compare dafault base URI from the SDK to the endpoints from the public cloud
// Base URI and token resource are the same string. This func finds the authentication
// file field that matches the SDK base URI. The SDK defines the public cloud
// endpoint as its default base URI
if !strings.HasSuffix(baseURI, "/") {
baseURI += "/"
}
switch baseURI {
case azure.PublicCloud.ServiceManagementEndpoint:
return f.ManagementEndpoint, nil
case azure.PublicCloud.ResourceManagerEndpoint:
return f.ResourceManagerEndpoint, nil
case azure.PublicCloud.ActiveDirectoryEndpoint:
return f.ActiveDirectoryEndpoint, nil
case azure.PublicCloud.GalleryEndpoint:
return f.GalleryEndpoint, nil
case azure.PublicCloud.GraphEndpoint:
return f.GraphResourceID, nil
}
return "", fmt.Errorf("auth: base URI not found in endpoints")
}
// NewClientCredentialsConfig creates an AuthorizerConfig object configured to obtain an Authorizer through Client Credentials.
// Defaults to Public Cloud and Resource Manager Endpoint.
func NewClientCredentialsConfig(clientID string, clientSecret string, tenantID string) ClientCredentialsConfig {
return ClientCredentialsConfig{
ClientID: clientID,
ClientSecret: clientSecret,
TenantID: tenantID,
Resource: azure.PublicCloud.ResourceManagerEndpoint,
AADEndpoint: azure.PublicCloud.ActiveDirectoryEndpoint,
}
}
// NewClientCertificateConfig creates a ClientCertificateConfig object configured to obtain an Authorizer through client certificate.
// Defaults to Public Cloud and Resource Manager Endpoint.
func NewClientCertificateConfig(certificatePath string, certificatePassword string, clientID string, tenantID string) ClientCertificateConfig {
return ClientCertificateConfig{
CertificatePath: certificatePath,
CertificatePassword: certificatePassword,
ClientID: clientID,
TenantID: tenantID,
Resource: azure.PublicCloud.ResourceManagerEndpoint,
AADEndpoint: azure.PublicCloud.ActiveDirectoryEndpoint,
}
}
// NewUsernamePasswordConfig creates an UsernamePasswordConfig object configured to obtain an Authorizer through username and password.
// Defaults to Public Cloud and Resource Manager Endpoint.
func NewUsernamePasswordConfig(username string, password string, clientID string, tenantID string) UsernamePasswordConfig {
return UsernamePasswordConfig{
Username: username,
Password: password,
ClientID: clientID,
TenantID: tenantID,
Resource: azure.PublicCloud.ResourceManagerEndpoint,
AADEndpoint: azure.PublicCloud.ActiveDirectoryEndpoint,
}
}
// NewMSIConfig creates an MSIConfig object configured to obtain an Authorizer through MSI.
func NewMSIConfig() MSIConfig {
return MSIConfig{
Resource: azure.PublicCloud.ResourceManagerEndpoint,
}
}
// NewDeviceFlowConfig creates a DeviceFlowConfig object configured to obtain an Authorizer through device flow.
// Defaults to Public Cloud and Resource Manager Endpoint.
func NewDeviceFlowConfig(clientID string, tenantID string) DeviceFlowConfig {
return DeviceFlowConfig{
ClientID: clientID,
TenantID: tenantID,
Resource: azure.PublicCloud.ResourceManagerEndpoint,
AADEndpoint: azure.PublicCloud.ActiveDirectoryEndpoint,
}
}
//AuthorizerConfig provides an authorizer from the configuration provided.
type AuthorizerConfig interface {
Authorizer() (autorest.Authorizer, error)
}
// ClientCredentialsConfig provides the options to get a bearer authorizer from client credentials.
type ClientCredentialsConfig struct {
ClientID string
ClientSecret string
TenantID string
AADEndpoint string
Resource string
}
// Authorizer gets the authorizer from client credentials.
func (ccc ClientCredentialsConfig) Authorizer() (autorest.Authorizer, error) {
oauthConfig, err := adal.NewOAuthConfig(ccc.AADEndpoint, ccc.TenantID)
if err != nil {
return nil, err
}
spToken, err := adal.NewServicePrincipalToken(*oauthConfig, ccc.ClientID, ccc.ClientSecret, ccc.Resource)
if err != nil {
return nil, fmt.Errorf("failed to get oauth token from client credentials: %v", err)
}
return autorest.NewBearerAuthorizer(spToken), nil
}
// ClientCertificateConfig provides the options to get a bearer authorizer from a client certificate.
type ClientCertificateConfig struct {
ClientID string
CertificatePath string
CertificatePassword string
TenantID string
AADEndpoint string
Resource string
}
// Authorizer gets an authorizer object from client certificate.
func (ccc ClientCertificateConfig) Authorizer() (autorest.Authorizer, error) {
oauthConfig, err := adal.NewOAuthConfig(ccc.AADEndpoint, ccc.TenantID)
certData, err := ioutil.ReadFile(ccc.CertificatePath)
if err != nil {
return nil, fmt.Errorf("failed to read the certificate file (%s): %v", ccc.CertificatePath, err)
}
certificate, rsaPrivateKey, err := decodePkcs12(certData, ccc.CertificatePassword)
if err != nil {
return nil, fmt.Errorf("failed to decode pkcs12 certificate while creating spt: %v", err)
}
spToken, err := adal.NewServicePrincipalTokenFromCertificate(*oauthConfig, ccc.ClientID, certificate, rsaPrivateKey, ccc.Resource)
if err != nil {
return nil, fmt.Errorf("failed to get oauth token from certificate auth: %v", err)
}
return autorest.NewBearerAuthorizer(spToken), nil
}
// DeviceFlowConfig provides the options to get a bearer authorizer using device flow authentication.
type DeviceFlowConfig struct {
ClientID string
TenantID string
AADEndpoint string
Resource string
}
// Authorizer gets the authorizer from device flow.
func (dfc DeviceFlowConfig) Authorizer() (autorest.Authorizer, error) {
oauthClient := &autorest.Client{}
oauthConfig, err := adal.NewOAuthConfig(dfc.AADEndpoint, dfc.TenantID)
deviceCode, err := adal.InitiateDeviceAuth(oauthClient, *oauthConfig, dfc.ClientID, dfc.Resource)
if err != nil {
return nil, fmt.Errorf("failed to start device auth flow: %s", err)
}
log.Println(*deviceCode.Message)
token, err := adal.WaitForUserCompletion(oauthClient, deviceCode)
if err != nil {
return nil, fmt.Errorf("failed to finish device auth flow: %s", err)
}
spToken, err := adal.NewServicePrincipalTokenFromManualToken(*oauthConfig, dfc.ClientID, dfc.Resource, *token)
if err != nil {
return nil, fmt.Errorf("failed to get oauth token from device flow: %v", err)
}
return autorest.NewBearerAuthorizer(spToken), nil
}
func decodePkcs12(pkcs []byte, password string) (*x509.Certificate, *rsa.PrivateKey, error) {
privateKey, certificate, err := pkcs12.Decode(pkcs, password)
if err != nil {
return nil, nil, err
}
rsaPrivateKey, isRsaKey := privateKey.(*rsa.PrivateKey)
if !isRsaKey {
return nil, nil, fmt.Errorf("PKCS#12 certificate must contain an RSA private key")
}
return certificate, rsaPrivateKey, nil
}
// UsernamePasswordConfig provides the options to get a bearer authorizer from a username and a password.
type UsernamePasswordConfig struct {
ClientID string
Username string
Password string
TenantID string
AADEndpoint string
Resource string
}
// Authorizer gets the authorizer from a username and a password.
func (ups UsernamePasswordConfig) Authorizer() (autorest.Authorizer, error) {
oauthConfig, err := adal.NewOAuthConfig(ups.AADEndpoint, ups.TenantID)
spToken, err := adal.NewServicePrincipalTokenFromUsernamePassword(*oauthConfig, ups.ClientID, ups.Username, ups.Password, ups.Resource)
if err != nil {
return nil, fmt.Errorf("failed to get oauth token from username and password auth: %v", err)
}
return autorest.NewBearerAuthorizer(spToken), nil
}
// MSIConfig provides the options to get a bearer authorizer through MSI.
type MSIConfig struct {
Resource string
ClientID string
}
// Authorizer gets the authorizer from MSI.
func (mc MSIConfig) Authorizer() (autorest.Authorizer, error) {
msiEndpoint, err := adal.GetMSIVMEndpoint()
if err != nil {
return nil, err
}
spToken, err := adal.NewServicePrincipalTokenFromMSI(msiEndpoint, mc.Resource)
if err != nil {
return nil, fmt.Errorf("failed to get oauth token from MSI: %v", err)
}
return autorest.NewBearerAuthorizer(spToken), nil
}

201
vendor/github.com/dimchansky/utfbom/LICENSE generated vendored Normal file
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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
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"You" (or "Your") shall mean an individual or Legal Entity
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of your accepting any such warranty or additional liability.
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
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174
vendor/github.com/dimchansky/utfbom/utfbom.go generated vendored Normal file
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// Package utfbom implements the detection of the BOM (Unicode Byte Order Mark) and removing as necessary.
// It wraps an io.Reader object, creating another object (Reader) that also implements the io.Reader
// interface but provides automatic BOM checking and removing as necessary.
package utfbom
import (
"errors"
"io"
)
// Encoding is type alias for detected UTF encoding.
type Encoding int
// Constants to identify detected UTF encodings.
const (
// Unknown encoding, returned when no BOM was detected
Unknown Encoding = iota
// UTF8, BOM bytes: EF BB BF
UTF8
// UTF-16, big-endian, BOM bytes: FE FF
UTF16BigEndian
// UTF-16, little-endian, BOM bytes: FF FE
UTF16LittleEndian
// UTF-32, big-endian, BOM bytes: 00 00 FE FF
UTF32BigEndian
// UTF-32, little-endian, BOM bytes: FF FE 00 00
UTF32LittleEndian
)
const maxConsecutiveEmptyReads = 100
// Skip creates Reader which automatically detects BOM (Unicode Byte Order Mark) and removes it as necessary.
// It also returns the encoding detected by the BOM.
// If the detected encoding is not needed, you can call the SkipOnly function.
func Skip(rd io.Reader) (*Reader, Encoding) {
// Is it already a Reader?
b, ok := rd.(*Reader)
if ok {
return b, Unknown
}
enc, left, err := detectUtf(rd)
return &Reader{
rd: rd,
buf: left,
err: err,
}, enc
}
// SkipOnly creates Reader which automatically detects BOM (Unicode Byte Order Mark) and removes it as necessary.
func SkipOnly(rd io.Reader) *Reader {
r, _ := Skip(rd)
return r
}
// Reader implements automatic BOM (Unicode Byte Order Mark) checking and
// removing as necessary for an io.Reader object.
type Reader struct {
rd io.Reader // reader provided by the client
buf []byte // buffered data
err error // last error
}
// Read is an implementation of io.Reader interface.
// The bytes are taken from the underlying Reader, but it checks for BOMs, removing them as necessary.
func (r *Reader) Read(p []byte) (n int, err error) {
if len(p) == 0 {
return 0, nil
}
if r.buf == nil {
if r.err != nil {
return 0, r.readErr()
}
return r.rd.Read(p)
}
// copy as much as we can
n = copy(p, r.buf)
r.buf = nilIfEmpty(r.buf[n:])
return n, nil
}
func (r *Reader) readErr() error {
err := r.err
r.err = nil
return err
}
var errNegativeRead = errors.New("utfbom: reader returned negative count from Read")
func detectUtf(rd io.Reader) (enc Encoding, buf []byte, err error) {
buf, err = readBOM(rd)
if len(buf) >= 4 {
if isUTF32BigEndianBOM4(buf) {
return UTF32BigEndian, nilIfEmpty(buf[4:]), err
}
if isUTF32LittleEndianBOM4(buf) {
return UTF32LittleEndian, nilIfEmpty(buf[4:]), err
}
}
if len(buf) > 2 && isUTF8BOM3(buf) {
return UTF8, nilIfEmpty(buf[3:]), err
}
if (err != nil && err != io.EOF) || (len(buf) < 2) {
return Unknown, nilIfEmpty(buf), err
}
if isUTF16BigEndianBOM2(buf) {
return UTF16BigEndian, nilIfEmpty(buf[2:]), err
}
if isUTF16LittleEndianBOM2(buf) {
return UTF16LittleEndian, nilIfEmpty(buf[2:]), err
}
return Unknown, nilIfEmpty(buf), err
}
func readBOM(rd io.Reader) (buf []byte, err error) {
const maxBOMSize = 4
var bom [maxBOMSize]byte // used to read BOM
// read as many bytes as possible
for nEmpty, n := 0, 0; err == nil && len(buf) < maxBOMSize; buf = bom[:len(buf)+n] {
if n, err = rd.Read(bom[len(buf):]); n < 0 {
panic(errNegativeRead)
}
if n > 0 {
nEmpty = 0
} else {
nEmpty++
if nEmpty >= maxConsecutiveEmptyReads {
err = io.ErrNoProgress
}
}
}
return
}
func isUTF32BigEndianBOM4(buf []byte) bool {
return buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0xFE && buf[3] == 0xFF
}
func isUTF32LittleEndianBOM4(buf []byte) bool {
return buf[0] == 0xFF && buf[1] == 0xFE && buf[2] == 0x00 && buf[3] == 0x00
}
func isUTF8BOM3(buf []byte) bool {
return buf[0] == 0xEF && buf[1] == 0xBB && buf[2] == 0xBF
}
func isUTF16BigEndianBOM2(buf []byte) bool {
return buf[0] == 0xFE && buf[1] == 0xFF
}
func isUTF16LittleEndianBOM2(buf []byte) bool {
return buf[0] == 0xFF && buf[1] == 0xFE
}
func nilIfEmpty(buf []byte) (res []byte) {
if len(buf) > 0 {
res = buf
}
return
}

50
vendor/golang.org/x/crypto/pkcs12/bmp-string.go generated vendored Normal file
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pkcs12
import (
"errors"
"unicode/utf16"
)
// bmpString returns s encoded in UCS-2 with a zero terminator.
func bmpString(s string) ([]byte, error) {
// References:
// https://tools.ietf.org/html/rfc7292#appendix-B.1
// https://en.wikipedia.org/wiki/Plane_(Unicode)#Basic_Multilingual_Plane
// - non-BMP characters are encoded in UTF 16 by using a surrogate pair of 16-bit codes
// EncodeRune returns 0xfffd if the rune does not need special encoding
// - the above RFC provides the info that BMPStrings are NULL terminated.
ret := make([]byte, 0, 2*len(s)+2)
for _, r := range s {
if t, _ := utf16.EncodeRune(r); t != 0xfffd {
return nil, errors.New("pkcs12: string contains characters that cannot be encoded in UCS-2")
}
ret = append(ret, byte(r/256), byte(r%256))
}
return append(ret, 0, 0), nil
}
func decodeBMPString(bmpString []byte) (string, error) {
if len(bmpString)%2 != 0 {
return "", errors.New("pkcs12: odd-length BMP string")
}
// strip terminator if present
if l := len(bmpString); l >= 2 && bmpString[l-1] == 0 && bmpString[l-2] == 0 {
bmpString = bmpString[:l-2]
}
s := make([]uint16, 0, len(bmpString)/2)
for len(bmpString) > 0 {
s = append(s, uint16(bmpString[0])<<8+uint16(bmpString[1]))
bmpString = bmpString[2:]
}
return string(utf16.Decode(s)), nil
}

131
vendor/golang.org/x/crypto/pkcs12/crypto.go generated vendored Normal file
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pkcs12
import (
"bytes"
"crypto/cipher"
"crypto/des"
"crypto/x509/pkix"
"encoding/asn1"
"errors"
"golang.org/x/crypto/pkcs12/internal/rc2"
)
var (
oidPBEWithSHAAnd3KeyTripleDESCBC = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 12, 1, 3})
oidPBEWithSHAAnd40BitRC2CBC = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 12, 1, 6})
)
// pbeCipher is an abstraction of a PKCS#12 cipher.
type pbeCipher interface {
// create returns a cipher.Block given a key.
create(key []byte) (cipher.Block, error)
// deriveKey returns a key derived from the given password and salt.
deriveKey(salt, password []byte, iterations int) []byte
// deriveKey returns an IV derived from the given password and salt.
deriveIV(salt, password []byte, iterations int) []byte
}
type shaWithTripleDESCBC struct{}
func (shaWithTripleDESCBC) create(key []byte) (cipher.Block, error) {
return des.NewTripleDESCipher(key)
}
func (shaWithTripleDESCBC) deriveKey(salt, password []byte, iterations int) []byte {
return pbkdf(sha1Sum, 20, 64, salt, password, iterations, 1, 24)
}
func (shaWithTripleDESCBC) deriveIV(salt, password []byte, iterations int) []byte {
return pbkdf(sha1Sum, 20, 64, salt, password, iterations, 2, 8)
}
type shaWith40BitRC2CBC struct{}
func (shaWith40BitRC2CBC) create(key []byte) (cipher.Block, error) {
return rc2.New(key, len(key)*8)
}
func (shaWith40BitRC2CBC) deriveKey(salt, password []byte, iterations int) []byte {
return pbkdf(sha1Sum, 20, 64, salt, password, iterations, 1, 5)
}
func (shaWith40BitRC2CBC) deriveIV(salt, password []byte, iterations int) []byte {
return pbkdf(sha1Sum, 20, 64, salt, password, iterations, 2, 8)
}
type pbeParams struct {
Salt []byte
Iterations int
}
func pbDecrypterFor(algorithm pkix.AlgorithmIdentifier, password []byte) (cipher.BlockMode, int, error) {
var cipherType pbeCipher
switch {
case algorithm.Algorithm.Equal(oidPBEWithSHAAnd3KeyTripleDESCBC):
cipherType = shaWithTripleDESCBC{}
case algorithm.Algorithm.Equal(oidPBEWithSHAAnd40BitRC2CBC):
cipherType = shaWith40BitRC2CBC{}
default:
return nil, 0, NotImplementedError("algorithm " + algorithm.Algorithm.String() + " is not supported")
}
var params pbeParams
if err := unmarshal(algorithm.Parameters.FullBytes, &params); err != nil {
return nil, 0, err
}
key := cipherType.deriveKey(params.Salt, password, params.Iterations)
iv := cipherType.deriveIV(params.Salt, password, params.Iterations)
block, err := cipherType.create(key)
if err != nil {
return nil, 0, err
}
return cipher.NewCBCDecrypter(block, iv), block.BlockSize(), nil
}
func pbDecrypt(info decryptable, password []byte) (decrypted []byte, err error) {
cbc, blockSize, err := pbDecrypterFor(info.Algorithm(), password)
if err != nil {
return nil, err
}
encrypted := info.Data()
if len(encrypted) == 0 {
return nil, errors.New("pkcs12: empty encrypted data")
}
if len(encrypted)%blockSize != 0 {
return nil, errors.New("pkcs12: input is not a multiple of the block size")
}
decrypted = make([]byte, len(encrypted))
cbc.CryptBlocks(decrypted, encrypted)
psLen := int(decrypted[len(decrypted)-1])
if psLen == 0 || psLen > blockSize {
return nil, ErrDecryption
}
if len(decrypted) < psLen {
return nil, ErrDecryption
}
ps := decrypted[len(decrypted)-psLen:]
decrypted = decrypted[:len(decrypted)-psLen]
if bytes.Compare(ps, bytes.Repeat([]byte{byte(psLen)}, psLen)) != 0 {
return nil, ErrDecryption
}
return
}
// decryptable abstracts an object that contains ciphertext.
type decryptable interface {
Algorithm() pkix.AlgorithmIdentifier
Data() []byte
}

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vendor/golang.org/x/crypto/pkcs12/errors.go generated vendored Normal file
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pkcs12
import "errors"
var (
// ErrDecryption represents a failure to decrypt the input.
ErrDecryption = errors.New("pkcs12: decryption error, incorrect padding")
// ErrIncorrectPassword is returned when an incorrect password is detected.
// Usually, P12/PFX data is signed to be able to verify the password.
ErrIncorrectPassword = errors.New("pkcs12: decryption password incorrect")
)
// NotImplementedError indicates that the input is not currently supported.
type NotImplementedError string
func (e NotImplementedError) Error() string {
return "pkcs12: " + string(e)
}

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vendor/golang.org/x/crypto/pkcs12/internal/rc2/rc2.go generated vendored Normal file
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package rc2 implements the RC2 cipher
/*
https://www.ietf.org/rfc/rfc2268.txt
http://people.csail.mit.edu/rivest/pubs/KRRR98.pdf
This code is licensed under the MIT license.
*/
package rc2
import (
"crypto/cipher"
"encoding/binary"
)
// The rc2 block size in bytes
const BlockSize = 8
type rc2Cipher struct {
k [64]uint16
}
// New returns a new rc2 cipher with the given key and effective key length t1
func New(key []byte, t1 int) (cipher.Block, error) {
// TODO(dgryski): error checking for key length
return &rc2Cipher{
k: expandKey(key, t1),
}, nil
}
func (*rc2Cipher) BlockSize() int { return BlockSize }
var piTable = [256]byte{
0xd9, 0x78, 0xf9, 0xc4, 0x19, 0xdd, 0xb5, 0xed, 0x28, 0xe9, 0xfd, 0x79, 0x4a, 0xa0, 0xd8, 0x9d,
0xc6, 0x7e, 0x37, 0x83, 0x2b, 0x76, 0x53, 0x8e, 0x62, 0x4c, 0x64, 0x88, 0x44, 0x8b, 0xfb, 0xa2,
0x17, 0x9a, 0x59, 0xf5, 0x87, 0xb3, 0x4f, 0x13, 0x61, 0x45, 0x6d, 0x8d, 0x09, 0x81, 0x7d, 0x32,
0xbd, 0x8f, 0x40, 0xeb, 0x86, 0xb7, 0x7b, 0x0b, 0xf0, 0x95, 0x21, 0x22, 0x5c, 0x6b, 0x4e, 0x82,
0x54, 0xd6, 0x65, 0x93, 0xce, 0x60, 0xb2, 0x1c, 0x73, 0x56, 0xc0, 0x14, 0xa7, 0x8c, 0xf1, 0xdc,
0x12, 0x75, 0xca, 0x1f, 0x3b, 0xbe, 0xe4, 0xd1, 0x42, 0x3d, 0xd4, 0x30, 0xa3, 0x3c, 0xb6, 0x26,
0x6f, 0xbf, 0x0e, 0xda, 0x46, 0x69, 0x07, 0x57, 0x27, 0xf2, 0x1d, 0x9b, 0xbc, 0x94, 0x43, 0x03,
0xf8, 0x11, 0xc7, 0xf6, 0x90, 0xef, 0x3e, 0xe7, 0x06, 0xc3, 0xd5, 0x2f, 0xc8, 0x66, 0x1e, 0xd7,
0x08, 0xe8, 0xea, 0xde, 0x80, 0x52, 0xee, 0xf7, 0x84, 0xaa, 0x72, 0xac, 0x35, 0x4d, 0x6a, 0x2a,
0x96, 0x1a, 0xd2, 0x71, 0x5a, 0x15, 0x49, 0x74, 0x4b, 0x9f, 0xd0, 0x5e, 0x04, 0x18, 0xa4, 0xec,
0xc2, 0xe0, 0x41, 0x6e, 0x0f, 0x51, 0xcb, 0xcc, 0x24, 0x91, 0xaf, 0x50, 0xa1, 0xf4, 0x70, 0x39,
0x99, 0x7c, 0x3a, 0x85, 0x23, 0xb8, 0xb4, 0x7a, 0xfc, 0x02, 0x36, 0x5b, 0x25, 0x55, 0x97, 0x31,
0x2d, 0x5d, 0xfa, 0x98, 0xe3, 0x8a, 0x92, 0xae, 0x05, 0xdf, 0x29, 0x10, 0x67, 0x6c, 0xba, 0xc9,
0xd3, 0x00, 0xe6, 0xcf, 0xe1, 0x9e, 0xa8, 0x2c, 0x63, 0x16, 0x01, 0x3f, 0x58, 0xe2, 0x89, 0xa9,
0x0d, 0x38, 0x34, 0x1b, 0xab, 0x33, 0xff, 0xb0, 0xbb, 0x48, 0x0c, 0x5f, 0xb9, 0xb1, 0xcd, 0x2e,
0xc5, 0xf3, 0xdb, 0x47, 0xe5, 0xa5, 0x9c, 0x77, 0x0a, 0xa6, 0x20, 0x68, 0xfe, 0x7f, 0xc1, 0xad,
}
func expandKey(key []byte, t1 int) [64]uint16 {
l := make([]byte, 128)
copy(l, key)
var t = len(key)
var t8 = (t1 + 7) / 8
var tm = byte(255 % uint(1<<(8+uint(t1)-8*uint(t8))))
for i := len(key); i < 128; i++ {
l[i] = piTable[l[i-1]+l[uint8(i-t)]]
}
l[128-t8] = piTable[l[128-t8]&tm]
for i := 127 - t8; i >= 0; i-- {
l[i] = piTable[l[i+1]^l[i+t8]]
}
var k [64]uint16
for i := range k {
k[i] = uint16(l[2*i]) + uint16(l[2*i+1])*256
}
return k
}
func rotl16(x uint16, b uint) uint16 {
return (x >> (16 - b)) | (x << b)
}
func (c *rc2Cipher) Encrypt(dst, src []byte) {
r0 := binary.LittleEndian.Uint16(src[0:])
r1 := binary.LittleEndian.Uint16(src[2:])
r2 := binary.LittleEndian.Uint16(src[4:])
r3 := binary.LittleEndian.Uint16(src[6:])
var j int
for j <= 16 {
// mix r0
r0 = r0 + c.k[j] + (r3 & r2) + ((^r3) & r1)
r0 = rotl16(r0, 1)
j++
// mix r1
r1 = r1 + c.k[j] + (r0 & r3) + ((^r0) & r2)
r1 = rotl16(r1, 2)
j++
// mix r2
r2 = r2 + c.k[j] + (r1 & r0) + ((^r1) & r3)
r2 = rotl16(r2, 3)
j++
// mix r3
r3 = r3 + c.k[j] + (r2 & r1) + ((^r2) & r0)
r3 = rotl16(r3, 5)
j++
}
r0 = r0 + c.k[r3&63]
r1 = r1 + c.k[r0&63]
r2 = r2 + c.k[r1&63]
r3 = r3 + c.k[r2&63]
for j <= 40 {
// mix r0
r0 = r0 + c.k[j] + (r3 & r2) + ((^r3) & r1)
r0 = rotl16(r0, 1)
j++
// mix r1
r1 = r1 + c.k[j] + (r0 & r3) + ((^r0) & r2)
r1 = rotl16(r1, 2)
j++
// mix r2
r2 = r2 + c.k[j] + (r1 & r0) + ((^r1) & r3)
r2 = rotl16(r2, 3)
j++
// mix r3
r3 = r3 + c.k[j] + (r2 & r1) + ((^r2) & r0)
r3 = rotl16(r3, 5)
j++
}
r0 = r0 + c.k[r3&63]
r1 = r1 + c.k[r0&63]
r2 = r2 + c.k[r1&63]
r3 = r3 + c.k[r2&63]
for j <= 60 {
// mix r0
r0 = r0 + c.k[j] + (r3 & r2) + ((^r3) & r1)
r0 = rotl16(r0, 1)
j++
// mix r1
r1 = r1 + c.k[j] + (r0 & r3) + ((^r0) & r2)
r1 = rotl16(r1, 2)
j++
// mix r2
r2 = r2 + c.k[j] + (r1 & r0) + ((^r1) & r3)
r2 = rotl16(r2, 3)
j++
// mix r3
r3 = r3 + c.k[j] + (r2 & r1) + ((^r2) & r0)
r3 = rotl16(r3, 5)
j++
}
binary.LittleEndian.PutUint16(dst[0:], r0)
binary.LittleEndian.PutUint16(dst[2:], r1)
binary.LittleEndian.PutUint16(dst[4:], r2)
binary.LittleEndian.PutUint16(dst[6:], r3)
}
func (c *rc2Cipher) Decrypt(dst, src []byte) {
r0 := binary.LittleEndian.Uint16(src[0:])
r1 := binary.LittleEndian.Uint16(src[2:])
r2 := binary.LittleEndian.Uint16(src[4:])
r3 := binary.LittleEndian.Uint16(src[6:])
j := 63
for j >= 44 {
// unmix r3
r3 = rotl16(r3, 16-5)
r3 = r3 - c.k[j] - (r2 & r1) - ((^r2) & r0)
j--
// unmix r2
r2 = rotl16(r2, 16-3)
r2 = r2 - c.k[j] - (r1 & r0) - ((^r1) & r3)
j--
// unmix r1
r1 = rotl16(r1, 16-2)
r1 = r1 - c.k[j] - (r0 & r3) - ((^r0) & r2)
j--
// unmix r0
r0 = rotl16(r0, 16-1)
r0 = r0 - c.k[j] - (r3 & r2) - ((^r3) & r1)
j--
}
r3 = r3 - c.k[r2&63]
r2 = r2 - c.k[r1&63]
r1 = r1 - c.k[r0&63]
r0 = r0 - c.k[r3&63]
for j >= 20 {
// unmix r3
r3 = rotl16(r3, 16-5)
r3 = r3 - c.k[j] - (r2 & r1) - ((^r2) & r0)
j--
// unmix r2
r2 = rotl16(r2, 16-3)
r2 = r2 - c.k[j] - (r1 & r0) - ((^r1) & r3)
j--
// unmix r1
r1 = rotl16(r1, 16-2)
r1 = r1 - c.k[j] - (r0 & r3) - ((^r0) & r2)
j--
// unmix r0
r0 = rotl16(r0, 16-1)
r0 = r0 - c.k[j] - (r3 & r2) - ((^r3) & r1)
j--
}
r3 = r3 - c.k[r2&63]
r2 = r2 - c.k[r1&63]
r1 = r1 - c.k[r0&63]
r0 = r0 - c.k[r3&63]
for j >= 0 {
// unmix r3
r3 = rotl16(r3, 16-5)
r3 = r3 - c.k[j] - (r2 & r1) - ((^r2) & r0)
j--
// unmix r2
r2 = rotl16(r2, 16-3)
r2 = r2 - c.k[j] - (r1 & r0) - ((^r1) & r3)
j--
// unmix r1
r1 = rotl16(r1, 16-2)
r1 = r1 - c.k[j] - (r0 & r3) - ((^r0) & r2)
j--
// unmix r0
r0 = rotl16(r0, 16-1)
r0 = r0 - c.k[j] - (r3 & r2) - ((^r3) & r1)
j--
}
binary.LittleEndian.PutUint16(dst[0:], r0)
binary.LittleEndian.PutUint16(dst[2:], r1)
binary.LittleEndian.PutUint16(dst[4:], r2)
binary.LittleEndian.PutUint16(dst[6:], r3)
}

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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pkcs12
import (
"crypto/hmac"
"crypto/sha1"
"crypto/x509/pkix"
"encoding/asn1"
)
type macData struct {
Mac digestInfo
MacSalt []byte
Iterations int `asn1:"optional,default:1"`
}
// from PKCS#7:
type digestInfo struct {
Algorithm pkix.AlgorithmIdentifier
Digest []byte
}
var (
oidSHA1 = asn1.ObjectIdentifier([]int{1, 3, 14, 3, 2, 26})
)
func verifyMac(macData *macData, message, password []byte) error {
if !macData.Mac.Algorithm.Algorithm.Equal(oidSHA1) {
return NotImplementedError("unknown digest algorithm: " + macData.Mac.Algorithm.Algorithm.String())
}
key := pbkdf(sha1Sum, 20, 64, macData.MacSalt, password, macData.Iterations, 3, 20)
mac := hmac.New(sha1.New, key)
mac.Write(message)
expectedMAC := mac.Sum(nil)
if !hmac.Equal(macData.Mac.Digest, expectedMAC) {
return ErrIncorrectPassword
}
return nil
}

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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pkcs12
import (
"bytes"
"crypto/sha1"
"math/big"
)
var (
one = big.NewInt(1)
)
// sha1Sum returns the SHA-1 hash of in.
func sha1Sum(in []byte) []byte {
sum := sha1.Sum(in)
return sum[:]
}
// fillWithRepeats returns v*ceiling(len(pattern) / v) bytes consisting of
// repeats of pattern.
func fillWithRepeats(pattern []byte, v int) []byte {
if len(pattern) == 0 {
return nil
}
outputLen := v * ((len(pattern) + v - 1) / v)
return bytes.Repeat(pattern, (outputLen+len(pattern)-1)/len(pattern))[:outputLen]
}
func pbkdf(hash func([]byte) []byte, u, v int, salt, password []byte, r int, ID byte, size int) (key []byte) {
// implementation of https://tools.ietf.org/html/rfc7292#appendix-B.2 , RFC text verbatim in comments
// Let H be a hash function built around a compression function f:
// Z_2^u x Z_2^v -> Z_2^u
// (that is, H has a chaining variable and output of length u bits, and
// the message input to the compression function of H is v bits). The
// values for u and v are as follows:
// HASH FUNCTION VALUE u VALUE v
// MD2, MD5 128 512
// SHA-1 160 512
// SHA-224 224 512
// SHA-256 256 512
// SHA-384 384 1024
// SHA-512 512 1024
// SHA-512/224 224 1024
// SHA-512/256 256 1024
// Furthermore, let r be the iteration count.
// We assume here that u and v are both multiples of 8, as are the
// lengths of the password and salt strings (which we denote by p and s,
// respectively) and the number n of pseudorandom bits required. In
// addition, u and v are of course non-zero.
// For information on security considerations for MD5 [19], see [25] and
// [1], and on those for MD2, see [18].
// The following procedure can be used to produce pseudorandom bits for
// a particular "purpose" that is identified by a byte called "ID".
// This standard specifies 3 different values for the ID byte:
// 1. If ID=1, then the pseudorandom bits being produced are to be used
// as key material for performing encryption or decryption.
// 2. If ID=2, then the pseudorandom bits being produced are to be used
// as an IV (Initial Value) for encryption or decryption.
// 3. If ID=3, then the pseudorandom bits being produced are to be used
// as an integrity key for MACing.
// 1. Construct a string, D (the "diversifier"), by concatenating v/8
// copies of ID.
var D []byte
for i := 0; i < v; i++ {
D = append(D, ID)
}
// 2. Concatenate copies of the salt together to create a string S of
// length v(ceiling(s/v)) bits (the final copy of the salt may be
// truncated to create S). Note that if the salt is the empty
// string, then so is S.
S := fillWithRepeats(salt, v)
// 3. Concatenate copies of the password together to create a string P
// of length v(ceiling(p/v)) bits (the final copy of the password
// may be truncated to create P). Note that if the password is the
// empty string, then so is P.
P := fillWithRepeats(password, v)
// 4. Set I=S||P to be the concatenation of S and P.
I := append(S, P...)
// 5. Set c=ceiling(n/u).
c := (size + u - 1) / u
// 6. For i=1, 2, ..., c, do the following:
A := make([]byte, c*20)
var IjBuf []byte
for i := 0; i < c; i++ {
// A. Set A2=H^r(D||I). (i.e., the r-th hash of D||1,
// H(H(H(... H(D||I))))
Ai := hash(append(D, I...))
for j := 1; j < r; j++ {
Ai = hash(Ai)
}
copy(A[i*20:], Ai[:])
if i < c-1 { // skip on last iteration
// B. Concatenate copies of Ai to create a string B of length v
// bits (the final copy of Ai may be truncated to create B).
var B []byte
for len(B) < v {
B = append(B, Ai[:]...)
}
B = B[:v]
// C. Treating I as a concatenation I_0, I_1, ..., I_(k-1) of v-bit
// blocks, where k=ceiling(s/v)+ceiling(p/v), modify I by
// setting I_j=(I_j+B+1) mod 2^v for each j.
{
Bbi := new(big.Int).SetBytes(B)
Ij := new(big.Int)
for j := 0; j < len(I)/v; j++ {
Ij.SetBytes(I[j*v : (j+1)*v])
Ij.Add(Ij, Bbi)
Ij.Add(Ij, one)
Ijb := Ij.Bytes()
// We expect Ijb to be exactly v bytes,
// if it is longer or shorter we must
// adjust it accordingly.
if len(Ijb) > v {
Ijb = Ijb[len(Ijb)-v:]
}
if len(Ijb) < v {
if IjBuf == nil {
IjBuf = make([]byte, v)
}
bytesShort := v - len(Ijb)
for i := 0; i < bytesShort; i++ {
IjBuf[i] = 0
}
copy(IjBuf[bytesShort:], Ijb)
Ijb = IjBuf
}
copy(I[j*v:(j+1)*v], Ijb)
}
}
}
}
// 7. Concatenate A_1, A_2, ..., A_c together to form a pseudorandom
// bit string, A.
// 8. Use the first n bits of A as the output of this entire process.
return A[:size]
// If the above process is being used to generate a DES key, the process
// should be used to create 64 random bits, and the key's parity bits
// should be set after the 64 bits have been produced. Similar concerns
// hold for 2-key and 3-key triple-DES keys, for CDMF keys, and for any
// similar keys with parity bits "built into them".
}

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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package pkcs12 implements some of PKCS#12.
//
// This implementation is distilled from https://tools.ietf.org/html/rfc7292
// and referenced documents. It is intended for decoding P12/PFX-stored
// certificates and keys for use with the crypto/tls package.
package pkcs12
import (
"crypto/ecdsa"
"crypto/rsa"
"crypto/x509"
"crypto/x509/pkix"
"encoding/asn1"
"encoding/hex"
"encoding/pem"
"errors"
)
var (
oidDataContentType = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 7, 1})
oidEncryptedDataContentType = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 7, 6})
oidFriendlyName = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 9, 20})
oidLocalKeyID = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 9, 21})
oidMicrosoftCSPName = asn1.ObjectIdentifier([]int{1, 3, 6, 1, 4, 1, 311, 17, 1})
)
type pfxPdu struct {
Version int
AuthSafe contentInfo
MacData macData `asn1:"optional"`
}
type contentInfo struct {
ContentType asn1.ObjectIdentifier
Content asn1.RawValue `asn1:"tag:0,explicit,optional"`
}
type encryptedData struct {
Version int
EncryptedContentInfo encryptedContentInfo
}
type encryptedContentInfo struct {
ContentType asn1.ObjectIdentifier
ContentEncryptionAlgorithm pkix.AlgorithmIdentifier
EncryptedContent []byte `asn1:"tag:0,optional"`
}
func (i encryptedContentInfo) Algorithm() pkix.AlgorithmIdentifier {
return i.ContentEncryptionAlgorithm
}
func (i encryptedContentInfo) Data() []byte { return i.EncryptedContent }
type safeBag struct {
Id asn1.ObjectIdentifier
Value asn1.RawValue `asn1:"tag:0,explicit"`
Attributes []pkcs12Attribute `asn1:"set,optional"`
}
type pkcs12Attribute struct {
Id asn1.ObjectIdentifier
Value asn1.RawValue `asn1:"set"`
}
type encryptedPrivateKeyInfo struct {
AlgorithmIdentifier pkix.AlgorithmIdentifier
EncryptedData []byte
}
func (i encryptedPrivateKeyInfo) Algorithm() pkix.AlgorithmIdentifier {
return i.AlgorithmIdentifier
}
func (i encryptedPrivateKeyInfo) Data() []byte {
return i.EncryptedData
}
// PEM block types
const (
certificateType = "CERTIFICATE"
privateKeyType = "PRIVATE KEY"
)
// unmarshal calls asn1.Unmarshal, but also returns an error if there is any
// trailing data after unmarshaling.
func unmarshal(in []byte, out interface{}) error {
trailing, err := asn1.Unmarshal(in, out)
if err != nil {
return err
}
if len(trailing) != 0 {
return errors.New("pkcs12: trailing data found")
}
return nil
}
// ConvertToPEM converts all "safe bags" contained in pfxData to PEM blocks.
func ToPEM(pfxData []byte, password string) ([]*pem.Block, error) {
encodedPassword, err := bmpString(password)
if err != nil {
return nil, ErrIncorrectPassword
}
bags, encodedPassword, err := getSafeContents(pfxData, encodedPassword)
if err != nil {
return nil, err
}
blocks := make([]*pem.Block, 0, len(bags))
for _, bag := range bags {
block, err := convertBag(&bag, encodedPassword)
if err != nil {
return nil, err
}
blocks = append(blocks, block)
}
return blocks, nil
}
func convertBag(bag *safeBag, password []byte) (*pem.Block, error) {
block := &pem.Block{
Headers: make(map[string]string),
}
for _, attribute := range bag.Attributes {
k, v, err := convertAttribute(&attribute)
if err != nil {
return nil, err
}
block.Headers[k] = v
}
switch {
case bag.Id.Equal(oidCertBag):
block.Type = certificateType
certsData, err := decodeCertBag(bag.Value.Bytes)
if err != nil {
return nil, err
}
block.Bytes = certsData
case bag.Id.Equal(oidPKCS8ShroundedKeyBag):
block.Type = privateKeyType
key, err := decodePkcs8ShroudedKeyBag(bag.Value.Bytes, password)
if err != nil {
return nil, err
}
switch key := key.(type) {
case *rsa.PrivateKey:
block.Bytes = x509.MarshalPKCS1PrivateKey(key)
case *ecdsa.PrivateKey:
block.Bytes, err = x509.MarshalECPrivateKey(key)
if err != nil {
return nil, err
}
default:
return nil, errors.New("found unknown private key type in PKCS#8 wrapping")
}
default:
return nil, errors.New("don't know how to convert a safe bag of type " + bag.Id.String())
}
return block, nil
}
func convertAttribute(attribute *pkcs12Attribute) (key, value string, err error) {
isString := false
switch {
case attribute.Id.Equal(oidFriendlyName):
key = "friendlyName"
isString = true
case attribute.Id.Equal(oidLocalKeyID):
key = "localKeyId"
case attribute.Id.Equal(oidMicrosoftCSPName):
// This key is chosen to match OpenSSL.
key = "Microsoft CSP Name"
isString = true
default:
return "", "", errors.New("pkcs12: unknown attribute with OID " + attribute.Id.String())
}
if isString {
if err := unmarshal(attribute.Value.Bytes, &attribute.Value); err != nil {
return "", "", err
}
if value, err = decodeBMPString(attribute.Value.Bytes); err != nil {
return "", "", err
}
} else {
var id []byte
if err := unmarshal(attribute.Value.Bytes, &id); err != nil {
return "", "", err
}
value = hex.EncodeToString(id)
}
return key, value, nil
}
// Decode extracts a certificate and private key from pfxData. This function
// assumes that there is only one certificate and only one private key in the
// pfxData.
func Decode(pfxData []byte, password string) (privateKey interface{}, certificate *x509.Certificate, err error) {
encodedPassword, err := bmpString(password)
if err != nil {
return nil, nil, err
}
bags, encodedPassword, err := getSafeContents(pfxData, encodedPassword)
if err != nil {
return nil, nil, err
}
if len(bags) != 2 {
err = errors.New("pkcs12: expected exactly two safe bags in the PFX PDU")
return
}
for _, bag := range bags {
switch {
case bag.Id.Equal(oidCertBag):
if certificate != nil {
err = errors.New("pkcs12: expected exactly one certificate bag")
}
certsData, err := decodeCertBag(bag.Value.Bytes)
if err != nil {
return nil, nil, err
}
certs, err := x509.ParseCertificates(certsData)
if err != nil {
return nil, nil, err
}
if len(certs) != 1 {
err = errors.New("pkcs12: expected exactly one certificate in the certBag")
return nil, nil, err
}
certificate = certs[0]
case bag.Id.Equal(oidPKCS8ShroundedKeyBag):
if privateKey != nil {
err = errors.New("pkcs12: expected exactly one key bag")
}
if privateKey, err = decodePkcs8ShroudedKeyBag(bag.Value.Bytes, encodedPassword); err != nil {
return nil, nil, err
}
}
}
if certificate == nil {
return nil, nil, errors.New("pkcs12: certificate missing")
}
if privateKey == nil {
return nil, nil, errors.New("pkcs12: private key missing")
}
return
}
func getSafeContents(p12Data, password []byte) (bags []safeBag, updatedPassword []byte, err error) {
pfx := new(pfxPdu)
if err := unmarshal(p12Data, pfx); err != nil {
return nil, nil, errors.New("pkcs12: error reading P12 data: " + err.Error())
}
if pfx.Version != 3 {
return nil, nil, NotImplementedError("can only decode v3 PFX PDU's")
}
if !pfx.AuthSafe.ContentType.Equal(oidDataContentType) {
return nil, nil, NotImplementedError("only password-protected PFX is implemented")
}
// unmarshal the explicit bytes in the content for type 'data'
if err := unmarshal(pfx.AuthSafe.Content.Bytes, &pfx.AuthSafe.Content); err != nil {
return nil, nil, err
}
if len(pfx.MacData.Mac.Algorithm.Algorithm) == 0 {
return nil, nil, errors.New("pkcs12: no MAC in data")
}
if err := verifyMac(&pfx.MacData, pfx.AuthSafe.Content.Bytes, password); err != nil {
if err == ErrIncorrectPassword && len(password) == 2 && password[0] == 0 && password[1] == 0 {
// some implementations use an empty byte array
// for the empty string password try one more
// time with empty-empty password
password = nil
err = verifyMac(&pfx.MacData, pfx.AuthSafe.Content.Bytes, password)
}
if err != nil {
return nil, nil, err
}
}
var authenticatedSafe []contentInfo
if err := unmarshal(pfx.AuthSafe.Content.Bytes, &authenticatedSafe); err != nil {
return nil, nil, err
}
if len(authenticatedSafe) != 2 {
return nil, nil, NotImplementedError("expected exactly two items in the authenticated safe")
}
for _, ci := range authenticatedSafe {
var data []byte
switch {
case ci.ContentType.Equal(oidDataContentType):
if err := unmarshal(ci.Content.Bytes, &data); err != nil {
return nil, nil, err
}
case ci.ContentType.Equal(oidEncryptedDataContentType):
var encryptedData encryptedData
if err := unmarshal(ci.Content.Bytes, &encryptedData); err != nil {
return nil, nil, err
}
if encryptedData.Version != 0 {
return nil, nil, NotImplementedError("only version 0 of EncryptedData is supported")
}
if data, err = pbDecrypt(encryptedData.EncryptedContentInfo, password); err != nil {
return nil, nil, err
}
default:
return nil, nil, NotImplementedError("only data and encryptedData content types are supported in authenticated safe")
}
var safeContents []safeBag
if err := unmarshal(data, &safeContents); err != nil {
return nil, nil, err
}
bags = append(bags, safeContents...)
}
return bags, password, nil
}

57
vendor/golang.org/x/crypto/pkcs12/safebags.go generated vendored Normal file
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@ -0,0 +1,57 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pkcs12
import (
"crypto/x509"
"encoding/asn1"
"errors"
)
var (
// see https://tools.ietf.org/html/rfc7292#appendix-D
oidCertTypeX509Certificate = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 9, 22, 1})
oidPKCS8ShroundedKeyBag = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 12, 10, 1, 2})
oidCertBag = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 12, 10, 1, 3})
)
type certBag struct {
Id asn1.ObjectIdentifier
Data []byte `asn1:"tag:0,explicit"`
}
func decodePkcs8ShroudedKeyBag(asn1Data, password []byte) (privateKey interface{}, err error) {
pkinfo := new(encryptedPrivateKeyInfo)
if err = unmarshal(asn1Data, pkinfo); err != nil {
return nil, errors.New("pkcs12: error decoding PKCS#8 shrouded key bag: " + err.Error())
}
pkData, err := pbDecrypt(pkinfo, password)
if err != nil {
return nil, errors.New("pkcs12: error decrypting PKCS#8 shrouded key bag: " + err.Error())
}
ret := new(asn1.RawValue)
if err = unmarshal(pkData, ret); err != nil {
return nil, errors.New("pkcs12: error unmarshaling decrypted private key: " + err.Error())
}
if privateKey, err = x509.ParsePKCS8PrivateKey(pkData); err != nil {
return nil, errors.New("pkcs12: error parsing PKCS#8 private key: " + err.Error())
}
return privateKey, nil
}
func decodeCertBag(asn1Data []byte) (x509Certificates []byte, err error) {
bag := new(certBag)
if err := unmarshal(asn1Data, bag); err != nil {
return nil, errors.New("pkcs12: error decoding cert bag: " + err.Error())
}
if !bag.Id.Equal(oidCertTypeX509Certificate) {
return nil, NotImplementedError("only X509 certificates are supported")
}
return bag.Data, nil
}