Initial commit

crypto/pem.go

@@ -0,0 +1,25 @@
+package crypto
+
+import (
+	"crypto/rsa"
+	"crypto/x509"
+	"encoding/pem"
+
+	jwt "github.com/dgrijalva/jwt-go"
+)
+
+func EncodePublicKeyToPEM(key interface{}) ([]byte, error) {
+	pub, err := x509.MarshalPKIXPublicKey(key)
+	if err != nil {
+		return nil, err
+	}
+	data := pem.EncodeToMemory(&pem.Block{
+		Type:  "PUBLIC KEY",
+		Bytes: pub,
+	})
+	return data, nil
+}
+
+func DecodePEMToPublicKey(pem []byte) (*rsa.PublicKey, error) {
+	return jwt.ParseRSAPublicKeyFromPEM(pem)
+}