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