Add tpm attestation with configurable roots

acme/challenge.go

@@ -26,8 +26,13 @@ import (
 	"time"
 
 	"github.com/fxamacker/cbor/v2"
+	"github.com/google/go-tpm/tpm2"
+	"github.com/ryboe/q"
+
 	"go.step.sm/crypto/jose"
 	"go.step.sm/crypto/pemutil"
+
+	"github.com/smallstep/certificates/authority/provisioner"
 )
 
 type ChallengeType string
@@ -395,6 +400,29 @@ func deviceAttest01Validate(ctx context.Context, ch *Challenge, db DB, jwk *jose
 		if data.SerialNumber != ch.Value {
 			return storeError(ctx, db, ch, true, NewError(ErrorBadAttestationStatement, "permanent identifier does not match"))
 		}
+	case "tpm": // TODO(hs): this may end up being a different case; this is the generic `tpm` format from `WebAuthn`
+		data, err := doTPMAttestationFormat(ctx, ch, db, &att)
+		if err != nil {
+			q.Q("attestation error:", err)
+			return err
+		}
+
+		expectedDigest, err := keyAuthDigest(jwk, ch.Token)
+		if err != nil {
+			return fmt.Errorf("error creating key auth digest: %w", err)
+		}
+
+		q.Q(data)
+		q.Q(expectedDigest)
+
+		// verify the WebAuthn object contains the expect key authorization digest, which is carried
+		// within the encoded `certInfo` property of the attestation statement.
+		if subtle.ConstantTimeCompare(expectedDigest, data.ExtraData) == 0 {
+			return storeError(ctx, db, ch, true, NewError(ErrorBadAttestationStatement, "key authorization doesn't match"))
+		}
+
+		// TODO(hs): more properties to verify? Apple method has nonce, check for permanent identifier.
+
 	default:
 		return storeError(ctx, db, ch, true, NewError(ErrorBadAttestationStatement, "unexpected attestation object format"))
 	}
@@ -410,6 +438,128 @@ func deviceAttest01Validate(ctx context.Context, ch *Challenge, db DB, jwk *jose
 	return nil
 }
 
+// Borrowed from:
+// https://github.com/golang/crypto/blob/master/acme/acme.go#L748
+func keyAuthDigest(jwk *jose.JSONWebKey, token string) ([]byte, error) {
+	th, err := jwk.Thumbprint(crypto.SHA256) // TODO(hs): verify this is the correct thumbprint
+	digest := sha256.Sum256([]byte(fmt.Sprintf("%s.%s", token, th)))
+	return digest[:], err
+}
+
+type tpmAttestationData struct {
+	Certificate    *x509.Certificate
+	VerifiedChains [][]*x509.Certificate
+	ExtraData      []byte // TODO(hs): rename this to KeyAuthorization to reflect its usage?
+}
+
+func doTPMAttestationFormat(ctx context.Context, ch *Challenge, db DB, att *AttestationObject) (*tpmAttestationData, error) {
+
+	p := MustProvisionerFromContext(ctx)
+	prov, ok := p.(*provisioner.ACME)
+	if !ok {
+		return nil, NewErrorISE("provisioner in context is not an ACME provisioner")
+	}
+
+	x5c, ok := att.AttStatement["x5c"].([]interface{})
+	if !ok {
+		return nil, storeError(ctx, db, ch, true, NewError(ErrorBadAttestationStatement, "x5c not present"))
+	}
+	if len(x5c) == 0 {
+		return nil, storeError(ctx, db, ch, true, NewError(ErrorBadAttestationStatement, "x5c is empty"))
+	}
+
+	der, ok := x5c[0].([]byte)
+	if !ok {
+		return nil, storeError(ctx, db, ch, true, NewError(ErrorBadAttestationStatement, "x5c is malformed"))
+	}
+	leaf, err := x509.ParseCertificate(der)
+	if err != nil {
+		return nil, storeError(ctx, db, ch, true, WrapError(ErrorBadAttestationStatement, err, "x5c is malformed"))
+	}
+
+	intermediates := x509.NewCertPool()
+	if len(x5c[1:]) > 0 {
+		for _, v := range x5c[1:] {
+			der, ok = v.([]byte)
+			if !ok {
+				return nil, storeError(ctx, db, ch, true, NewError(ErrorBadAttestationStatement, "x5c is malformed"))
+			}
+			cert, err := x509.ParseCertificate(der)
+			if err != nil {
+				return nil, storeError(ctx, db, ch, true, WrapError(ErrorBadAttestationStatement, err, "x5c is malformed"))
+			}
+			intermediates.AddCert(cert)
+		}
+	}
+
+	// TODO(hs): this can be removed when permanent-identifier/hardware-module-name are handled correctly in
+	// the stdlib in https://cs.opensource.google/go/go/+/refs/tags/go1.19:src/crypto/x509/parser.go;drc=b5b2cf519fe332891c165077f3723ee74932a647;l=362,
+	// but I doubt that will happen.
+	// TODO(hs): decide on the right logic for handling unhandled critical extensions
+	if len(leaf.UnhandledCriticalExtensions) > 0 {
+		unhandledCriticalExtensions := leaf.UnhandledCriticalExtensions[:0]
+		for _, extOID := range leaf.UnhandledCriticalExtensions {
+			switch {
+			// TODO(hs): extend the switch statement with other allowed OIDs; this might have to become configurable too
+			case extOID.Equal(asn1.ObjectIdentifier{2, 5, 29, 17}):
+				// TODO(hs): decide when the processed extension is "OK"; permanent-identifier/hardware-module-name
+				for _, e := range leaf.Extensions {
+					if e.Id.Equal(extOID) {
+						// TODO(hs): validate this is in fact a valid PermanentIdentifier/HardwareModuleName
+						q.Q(e)
+					}
+				}
+				continue
+			default:
+				// OIDs that are not in the switch remain unhandled
+				unhandledCriticalExtensions = append(unhandledCriticalExtensions, extOID)
+			}
+		}
+		leaf.UnhandledCriticalExtensions = unhandledCriticalExtensions
+	}
+
+	roots, err := prov.GetAttestationRoots()
+	if err != nil {
+		return nil, WrapErrorISE(err, "error getting tpm attestation root CAs")
+	}
+
+	verifiedChains, err := leaf.Verify(x509.VerifyOptions{
+		Roots:         roots,
+		Intermediates: intermediates,
+		CurrentTime:   time.Now().Truncate(time.Second),
+		KeyUsages:     []x509.ExtKeyUsage{x509.ExtKeyUsageAny},
+	})
+	if err != nil {
+		if storeErr := storeError(ctx, db, ch, true, WrapError(ErrorBadAttestationStatement, err, "x5c is not valid")); storeErr != nil {
+			return nil, fmt.Errorf("error saving order error: %w", storeErr)
+		}
+		return nil, fmt.Errorf("error verifying x5c leaf: %w", err)
+	}
+
+	// TODO(hs): implement revocation check; Verify() doesn't perform CRL check nor OCSP lookup.
+	// TODO(hs): more properties to verify and/or return?
+
+	q.Q(att.AttStatement)
+
+	certInfo, ok := att.AttStatement["certInfo"].([]byte)
+	if !ok {
+		return nil, errors.New("invalid certInfo in attestation statement")
+	}
+
+	tpmCertInfo, err := tpm2.DecodeAttestationData([]byte(certInfo))
+	if err != nil {
+		return nil, fmt.Errorf("invalid certInfo: %w", err)
+	}
+
+	q.Q(tpmCertInfo.ExtraData)
+
+	return &tpmAttestationData{
+		Certificate:    leaf,
+		VerifiedChains: verifiedChains,
+		ExtraData:      []byte(tpmCertInfo.ExtraData),
+	}, nil
+}
+
 // Apple Enterprise Attestation Root CA from
 // https://www.apple.com/certificateauthority/private/
 const appleEnterpriseAttestationRootCA = `-----BEGIN CERTIFICATE-----

authority/provisioner/acme.go

@@ -3,6 +3,7 @@ package provisioner
 import (
 	"context"
 	"crypto/x509"
+	"encoding/pem"
 	"fmt"
 	"net"
 	"strings"
@@ -31,6 +32,10 @@ type ACME struct {
 	Claims     *Claims  `json:"claims,omitempty"`
 	Options    *Options `json:"options,omitempty"`
 
+	// TODO(hs): WIP configuration for ACME Device Attestation
+	AttestationRoots    []byte `json:"attestationRoots"`
+	attestationRootPool *x509.CertPool
+
 	ctl *Controller
 }
 
@@ -88,6 +93,27 @@ func (p *ACME) Init(config Config) (err error) {
 		return errors.New("provisioner name cannot be empty")
 	}
 
+	// TODO(hs): WIP configuration for ACME Device Attestation
+	p.attestationRootPool = x509.NewCertPool()
+
+	var (
+		block *pem.Block
+		rest  = p.AttestationRoots
+	)
+	for rest != nil {
+		block, rest = pem.Decode(rest)
+		if block == nil {
+			break
+		}
+		cert, err := x509.ParseCertificate(block.Bytes)
+		if err != nil {
+			return errors.Wrap(err, "error parsing x509 certificate from PEM block")
+		}
+		p.attestationRootPool.AddCert(cert)
+	}
+
+	// TODO(hs): need validation for number of certs? The current ones are only for the `tpm` type; not for Apple or Yubico.
+
 	p.ctl, err = NewController(p, p.Claims, config, p.Options)
 	return
 }
@@ -186,3 +212,9 @@ func (p *ACME) AuthorizeChallenge(ctx context.Context, challenge string) error {
 	}
 	return fmt.Errorf("acme challenge %q is disabled", challenge)
 }
+
+// TODO(hs): we may not want to expose the root pool like this;
+// call into an interface function instead to authorize?
+func (p *ACME) GetAttestationRoots() (*x509.CertPool, error) {
+	return p.attestationRootPool, nil
+}

go.mod

@@ -83,6 +83,7 @@ require (
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
+	github.com/google/go-tpm v0.3.3 // indirect
 	github.com/googleapis/enterprise-certificate-proxy v0.0.0-20220520183353-fd19c99a87aa // indirect
 	github.com/hashicorp/errwrap v1.1.0 // indirect
 	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
@@ -115,6 +116,8 @@ require (
 	github.com/jhump/protoreflect v1.9.0 // indirect
 	github.com/jmespath/go-jmespath v0.4.0 // indirect
 	github.com/klauspost/compress v1.12.3 // indirect
+	github.com/kr/pretty v0.3.0 // indirect
+	github.com/kr/text v0.2.0 // indirect
 	github.com/manifoldco/promptui v0.9.0 // indirect
 	github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d // indirect
 	github.com/miekg/pkcs11 v1.1.1 // indirect
@@ -126,8 +129,10 @@ require (
 	github.com/oklog/run v1.0.0 // indirect
 	github.com/pierrec/lz4 v2.5.2+incompatible // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/rogpeppe/go-internal v1.6.1 // indirect
 	github.com/russross/blackfriday/v2 v2.0.1 // indirect
 	github.com/ryanuber/go-glob v1.0.0 // indirect
+	github.com/ryboe/q v1.0.17 // indirect
 	github.com/shopspring/decimal v1.2.0 // indirect
 	github.com/shurcooL/sanitized_anchor_name v1.0.0 // indirect
 	github.com/spf13/cast v1.4.1 // indirect

go.sum

@@ -167,6 +167,7 @@ github.com/cockroachdb/apd v1.1.0 h1:3LFP3629v+1aKXU5Q37mxmRxX/pIu1nijXydLShEq5I
 github.com/cockroachdb/apd v1.1.0/go.mod h1:8Sl8LxpKi29FqWXR16WEFZRNSz3SoPzUzeMeY4+DwBQ=
 github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8=
 github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd/go.mod h1:sE/e/2PUdi/liOCUjSTXgM1o87ZssimdTWN964YiIeI=
+github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
 github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
 github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
@@ -174,6 +175,7 @@ github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7/go.mod h1:F5haX7
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/coreos/go-systemd v0.0.0-20190719114852-fd7a80b32e1f/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/coreos/pkg v0.0.0-20160727233714-3ac0863d7acf/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
+github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
 github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/cpuguy83/go-md2man/v2 v2.0.0 h1:EoUDS0afbrsXAZ9YQ9jdu/mZ2sXgT1/2yyNng4PGlyM=
@@ -195,6 +197,7 @@ github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZm
 github.com/dgryski/go-farm v0.0.0-20190423205320-6a90982ecee2/go.mod h1:SqUrOPUnsFjfmXRMNPybcSiG0BgUW2AuFH8PAnS2iTw=
 github.com/dgryski/go-farm v0.0.0-20200201041132-a6ae2369ad13 h1:fAjc9m62+UWV/WAFKLNi6ZS0675eEUC9y3AlwSbQu1Y=
 github.com/dgryski/go-farm v0.0.0-20200201041132-a6ae2369ad13/go.mod h1:SqUrOPUnsFjfmXRMNPybcSiG0BgUW2AuFH8PAnS2iTw=
+github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
 github.com/dimchansky/utfbom v1.1.1 h1:vV6w1AhK4VMnhBno/TPVCoK9U/LP0PkLCS9tbxHdi/U=
 github.com/dimchansky/utfbom v1.1.1/go.mod h1:SxdoEBH5qIqFocHMyGOXVAybYJdr71b1Q/j0mACtrfE=
 github.com/dustin/go-humanize v0.0.0-20171111073723-bb3d318650d4/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
@@ -269,6 +272,7 @@ github.com/golang-jwt/jwt/v4 v4.2.0 h1:besgBTC8w8HjP6NzQdxwKH9Z5oQMZ24ThTrHp3cZ8
 github.com/golang-jwt/jwt/v4 v4.2.0/go.mod h1:/xlHOz8bRuivTWchD4jCa+NbatV+wEUSzwAxVc6locg=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/groupcache v0.0.0-20160516000752-02826c3e7903/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
+github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20191227052852-215e87163ea7/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
@@ -323,6 +327,12 @@ github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
 github.com/google/go-cmp v0.5.7/go.mod h1:n+brtR0CgQNWTVd5ZUFpTBC8YFBDLK/h/bpaJ8/DtOE=
 github.com/google/go-cmp v0.5.8 h1:e6P7q2lk1O+qJJb4BtCQXlK8vWEO8V1ZeuEdJNOqZyg=
 github.com/google/go-cmp v0.5.8/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/go-tpm v0.1.2-0.20190725015402-ae6dd98980d4/go.mod h1:H9HbmUG2YgV/PHITkO7p6wxEEj/v5nlsVWIwumwH2NI=
+github.com/google/go-tpm v0.3.0/go.mod h1:iVLWvrPp/bHeEkxTFi9WG6K9w0iy2yIszHwZGHPbzAw=
+github.com/google/go-tpm v0.3.3 h1:P/ZFNBZYXRxc+z7i5uyd8VP7MaDteuLZInzrH2idRGo=
+github.com/google/go-tpm v0.3.3/go.mod h1:9Hyn3rgnzWF9XBWVk6ml6A6hNkbWjNFlDQL51BeghL4=
+github.com/google/go-tpm-tools v0.0.0-20190906225433-1614c142f845/go.mod h1:AVfHadzbdzHo54inR2x1v640jdi1YSi3NauM2DUsxk0=
+github.com/google/go-tpm-tools v0.2.0/go.mod h1:npUd03rQ60lxN7tzeBJreG38RvWwme2N1reF/eeiBk4=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs=
 github.com/google/martian/v3 v3.0.0/go.mod h1:y5Zk1BBys9G+gd6Jrk0W3cC1+ELVxBWuIGO+w/tUAp0=
@@ -366,9 +376,12 @@ github.com/gorilla/mux v1.4.0/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2z
 github.com/gorilla/mux v1.6.2/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
 github.com/gorilla/mux v1.7.3/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
 github.com/gorilla/websocket v0.0.0-20170926233335-4201258b820c/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
+github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
 github.com/groob/finalizer v0.0.0-20170707115354-4c2ed49aabda/go.mod h1:MyndkAZd5rUMdNogn35MWXBX1UiBigrU8eTj8DoAC2c=
+github.com/grpc-ecosystem/go-grpc-middleware v1.0.0/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
 github.com/grpc-ecosystem/go-grpc-middleware v1.0.1-0.20190118093823-f849b5445de4/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
 github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk=
+github.com/grpc-ecosystem/grpc-gateway v1.9.0/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
 github.com/grpc-ecosystem/grpc-gateway v1.9.5/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
 github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
 github.com/hashicorp/consul/api v1.3.0/go.mod h1:MmDNSzIMUjNpY/mQ398R4bk2FnqQLoPndWW5VkKPlCE=
@@ -530,6 +543,8 @@ github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORN
 github.com/kr/pretty v0.2.0/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pretty v0.2.1 h1:Fmg33tUaq4/8ym9TJN1x7sLJnHVwhP33CNkpYV/7rwI=
 github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
+github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
+github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/pty v1.1.8/go.mod h1:O1sed60cT9XZ5uDucP5qwvh+TE3NnUj51EiZO/lmSfw=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
@@ -611,6 +626,7 @@ github.com/nishanths/predeclared v0.0.0-20200524104333-86fad755b4d3/go.mod h1:nt
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@@ -645,6 +661,7 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
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@@ -654,18 +671,24 @@ github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:
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@@ -677,6 +700,8 @@ github.com/ryanuber/columnize v0.0.0-20160712163229-9b3edd62028f/go.mod h1:sm1tb
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@@ -713,10 +738,12 @@ github.com/spf13/cast v1.4.1 h1:s0hze+J0196ZfEMTs80N7UlFt0BDuQ7Q+JDnHiMWKdA=
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@@ -735,7 +762,9 @@ github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
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@@ -752,6 +781,7 @@ github.com/yuin/goldmark v1.1.32/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9de
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+go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
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@@ -858,6 +888,7 @@ golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn
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@@ -990,6 +1021,7 @@ golang.org/x/sys v0.0.0-20210514084401-e8d321eab015/go.mod h1:oPkhp1MJrh7nUepCBc
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