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Diffstat (limited to 'vendor/github.com/dgrijalva/jwt-go/rsa_utils.go')
-rw-r--r--vendor/github.com/dgrijalva/jwt-go/rsa_utils.go69
1 files changed, 69 insertions, 0 deletions
diff --git a/vendor/github.com/dgrijalva/jwt-go/rsa_utils.go b/vendor/github.com/dgrijalva/jwt-go/rsa_utils.go
new file mode 100644
index 000000000..213a90dbb
--- /dev/null
+++ b/vendor/github.com/dgrijalva/jwt-go/rsa_utils.go
@@ -0,0 +1,69 @@
+package jwt
+
+import (
+ "crypto/rsa"
+ "crypto/x509"
+ "encoding/pem"
+ "errors"
+)
+
+var (
+ ErrKeyMustBePEMEncoded = errors.New("Invalid Key: Key must be PEM encoded PKCS1 or PKCS8 private key")
+ ErrNotRSAPrivateKey = errors.New("Key is not a valid RSA private key")
+ ErrNotRSAPublicKey = errors.New("Key is not a valid RSA public key")
+)
+
+// Parse PEM encoded PKCS1 or PKCS8 private key
+func ParseRSAPrivateKeyFromPEM(key []byte) (*rsa.PrivateKey, error) {
+ var err error
+
+ // Parse PEM block
+ var block *pem.Block
+ if block, _ = pem.Decode(key); block == nil {
+ return nil, ErrKeyMustBePEMEncoded
+ }
+
+ var parsedKey interface{}
+ if parsedKey, err = x509.ParsePKCS1PrivateKey(block.Bytes); err != nil {
+ if parsedKey, err = x509.ParsePKCS8PrivateKey(block.Bytes); err != nil {
+ return nil, err
+ }
+ }
+
+ var pkey *rsa.PrivateKey
+ var ok bool
+ if pkey, ok = parsedKey.(*rsa.PrivateKey); !ok {
+ return nil, ErrNotRSAPrivateKey
+ }
+
+ return pkey, nil
+}
+
+// Parse PEM encoded PKCS1 or PKCS8 public key
+func ParseRSAPublicKeyFromPEM(key []byte) (*rsa.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 *rsa.PublicKey
+ var ok bool
+ if pkey, ok = parsedKey.(*rsa.PublicKey); !ok {
+ return nil, ErrNotRSAPublicKey
+ }
+
+ return pkey, nil
+}