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Diffstat (limited to 'vendor/github.com/dgrijalva/jwt-go/ecdsa_utils.go')
-rw-r--r--vendor/github.com/dgrijalva/jwt-go/ecdsa_utils.go67
1 files changed, 67 insertions, 0 deletions
diff --git a/vendor/github.com/dgrijalva/jwt-go/ecdsa_utils.go b/vendor/github.com/dgrijalva/jwt-go/ecdsa_utils.go
new file mode 100644
index 000000000..d19624b72
--- /dev/null
+++ b/vendor/github.com/dgrijalva/jwt-go/ecdsa_utils.go
@@ -0,0 +1,67 @@
+package jwt
+
+import (
+ "crypto/ecdsa"
+ "crypto/x509"
+ "encoding/pem"
+ "errors"
+)
+
+var (
+ ErrNotECPublicKey = errors.New("Key is not a valid ECDSA public key")
+ ErrNotECPrivateKey = errors.New("Key is not a valid ECDSA private key")
+)
+
+// Parse PEM encoded Elliptic Curve Private Key Structure
+func ParseECPrivateKeyFromPEM(key []byte) (*ecdsa.PrivateKey, error) {
+ var err error
+
+ // Parse PEM block
+ var block *pem.Block
+ if block, _ = pem.Decode(key); block == nil {
+ return nil, ErrKeyMustBePEMEncoded
+ }
+
+ // Parse the key
+ var parsedKey interface{}
+ if parsedKey, err = x509.ParseECPrivateKey(block.Bytes); err != nil {
+ return nil, err
+ }
+
+ var pkey *ecdsa.PrivateKey
+ var ok bool
+ if pkey, ok = parsedKey.(*ecdsa.PrivateKey); !ok {
+ return nil, ErrNotECPrivateKey
+ }
+
+ return pkey, nil
+}
+
+// Parse PEM encoded PKCS1 or PKCS8 public key
+func ParseECPublicKeyFromPEM(key []byte) (*ecdsa.PublicKey, error) {
+ var err error
+
+ // Parse PEM block
+ var block *pem.Block
+ if block, _ = pem.Decode(key); block == nil {
+ return nil, ErrKeyMustBePEMEncoded
+ }
+
+ // Parse the key
+ var parsedKey interface{}
+ if parsedKey, err = x509.ParsePKIXPublicKey(block.Bytes); err != nil {
+ if cert, err := x509.ParseCertificate(block.Bytes); err == nil {
+ parsedKey = cert.PublicKey
+ } else {
+ return nil, err
+ }
+ }
+
+ var pkey *ecdsa.PublicKey
+ var ok bool
+ if pkey, ok = parsedKey.(*ecdsa.PublicKey); !ok {
+ return nil, ErrNotECPublicKey
+ }
+
+ return pkey, nil
+}