Implement git-lfs-authenticate

1 files changed, 64 insertions, 0 deletions

diff --git a/vendor/github.com/golang-jwt/jwt/v5/ed25519_utils.go b/vendor/github.com/golang-jwt/jwt/v5/ed25519_utils.go
new file mode 100644
index 0000000..cdb5e68
--- /dev/null
+++ b/vendor/github.com/golang-jwt/jwt/v5/ed25519_utils.go
@@ -0,0 +1,64 @@
+package jwt
+
+import (
+        "crypto"
+        "crypto/ed25519"
+        "crypto/x509"
+        "encoding/pem"
+        "errors"
+)
+
+var (
+        ErrNotEdPrivateKey = errors.New("key is not a valid Ed25519 private key")
+        ErrNotEdPublicKey  = errors.New("key is not a valid Ed25519 public key")
+)
+
+// ParseEdPrivateKeyFromPEM parses a PEM-encoded Edwards curve private key
+func ParseEdPrivateKeyFromPEM(key []byte) (crypto.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.ParsePKCS8PrivateKey(block.Bytes); err != nil {
+                return nil, err
+        }
+
+        var pkey ed25519.PrivateKey
+        var ok bool
+        if pkey, ok = parsedKey.(ed25519.PrivateKey); !ok {
+                return nil, ErrNotEdPrivateKey
+        }
+
+        return pkey, nil
+}
+
+// ParseEdPublicKeyFromPEM parses a PEM-encoded Edwards curve public key
+func ParseEdPublicKeyFromPEM(key []byte) (crypto.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 {
+                return nil, err
+        }
+
+        var pkey ed25519.PublicKey
+        var ok bool
+        if pkey, ok = parsedKey.(ed25519.PublicKey); !ok {
+                return nil, ErrNotEdPublicKey
+        }
+
+        return pkey, nil
+}