175 lines
4.1 KiB
Go
175 lines
4.1 KiB
Go
//go:build cgo && !softhsm2 && !yubihsm2 && !opensc
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// +build cgo,!softhsm2,!yubihsm2,!opensc
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package pkcs11
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import (
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"crypto"
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"crypto/ecdsa"
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"crypto/elliptic"
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"crypto/rand"
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"crypto/rsa"
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"crypto/x509"
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"io"
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"math/big"
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"github.com/ThalesIgnite/crypto11"
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"github.com/pkg/errors"
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)
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func mustPKCS11(t TBTesting) *PKCS11 {
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t.Helper()
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testModule = "Golang crypto"
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k := &PKCS11{
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p11: &stubPKCS11{
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signerIndex: make(map[keyType]int),
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certIndex: make(map[keyType]int),
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},
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}
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for i := range testCerts {
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testCerts[i].Certificates = nil
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}
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teardown(t, k)
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setup(t, k)
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return k
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}
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type keyType struct {
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id string
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label string
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serial string
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}
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func newKey(id, label []byte, serial *big.Int) keyType {
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var serialString string
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if serial != nil {
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serialString = serial.String()
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}
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return keyType{
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id: string(id),
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label: string(label),
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serial: serialString,
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}
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}
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type stubPKCS11 struct {
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signers []crypto11.Signer
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certs []*x509.Certificate
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signerIndex map[keyType]int
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certIndex map[keyType]int
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}
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func (s *stubPKCS11) FindKeyPair(id, label []byte) (crypto11.Signer, error) {
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if id == nil && label == nil {
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return nil, errors.New("id and label cannot both be nil")
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}
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if i, ok := s.signerIndex[newKey(id, label, nil)]; ok {
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return s.signers[i], nil
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}
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return nil, nil
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}
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func (s *stubPKCS11) FindCertificate(id, label []byte, serial *big.Int) (*x509.Certificate, error) {
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if id == nil && label == nil && serial == nil {
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return nil, errors.New("id, label and serial cannot both be nil")
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}
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if i, ok := s.certIndex[newKey(id, label, serial)]; ok {
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return s.certs[i], nil
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}
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return nil, nil
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}
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func (s *stubPKCS11) ImportCertificateWithLabel(id, label []byte, cert *x509.Certificate) error {
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switch {
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case id == nil && label == nil:
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return errors.New("id and label cannot both be nil")
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case cert == nil:
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return errors.New("certificate cannot be nil")
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}
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i := len(s.certs)
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s.certs = append(s.certs, cert)
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s.certIndex[newKey(id, label, cert.SerialNumber)] = i
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s.certIndex[newKey(id, nil, nil)] = i
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s.certIndex[newKey(nil, label, nil)] = i
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s.certIndex[newKey(nil, nil, cert.SerialNumber)] = i
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s.certIndex[newKey(id, label, nil)] = i
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s.certIndex[newKey(id, nil, cert.SerialNumber)] = i
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s.certIndex[newKey(nil, label, cert.SerialNumber)] = i
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return nil
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}
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func (s *stubPKCS11) DeleteCertificate(id, label []byte, serial *big.Int) error {
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if id == nil && label == nil && serial == nil {
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return errors.New("id, label and serial cannot both be nil")
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}
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if i, ok := s.certIndex[newKey(id, label, serial)]; ok {
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s.certs[i] = nil
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}
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return nil
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}
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func (s *stubPKCS11) GenerateRSAKeyPairWithLabel(id, label []byte, bits int) (crypto11.SignerDecrypter, error) {
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if id == nil && label == nil {
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return nil, errors.New("id and label cannot both be nil")
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}
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p, err := rsa.GenerateKey(rand.Reader, bits)
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if err != nil {
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return nil, err
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}
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k := &privateKey{
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Signer: p,
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index: len(s.signers),
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stub: s,
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}
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s.signers = append(s.signers, k)
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s.signerIndex[newKey(id, label, nil)] = k.index
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s.signerIndex[newKey(id, nil, nil)] = k.index
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s.signerIndex[newKey(nil, label, nil)] = k.index
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return k, nil
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}
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func (s *stubPKCS11) GenerateECDSAKeyPairWithLabel(id, label []byte, curve elliptic.Curve) (crypto11.Signer, error) {
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if id == nil && label == nil {
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return nil, errors.New("id and label cannot both be nil")
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}
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p, err := ecdsa.GenerateKey(curve, rand.Reader)
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if err != nil {
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return nil, err
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}
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k := &privateKey{
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Signer: p,
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index: len(s.signers),
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stub: s,
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}
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s.signers = append(s.signers, k)
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s.signerIndex[newKey(id, label, nil)] = k.index
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s.signerIndex[newKey(id, nil, nil)] = k.index
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s.signerIndex[newKey(nil, label, nil)] = k.index
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return k, nil
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}
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func (s *stubPKCS11) Close() error {
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return nil
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}
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type privateKey struct {
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crypto.Signer
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index int
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stub *stubPKCS11
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}
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func (s *privateKey) Delete() error {
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s.stub.signers[s.index] = nil
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return nil
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}
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func (s *privateKey) Decrypt(rand io.Reader, msg []byte, opts crypto.DecrypterOpts) (plaintext []byte, err error) {
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k, ok := s.Signer.(*rsa.PrivateKey)
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if !ok {
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return nil, errors.New("key is not an rsa key")
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}
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return k.Decrypt(rand, msg, opts)
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}
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