Version 0.0.1

KeyLoader/keyloader.go

@@ -0,0 +1,46 @@
+package keyloader
+
+import (
+	"crypto/rsa"
+	"crypto/x509"
+	"encoding/pem"
+	"fmt"
+	"io/ioutil"
+	"unsafe"
+)
+
+func ReadPrivateKeyRSAfromPath(path string) (*rsa.PrivateKey, error) {
+	file, err := ioutil.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+	decoded, _ := pem.Decode(file)
+	priv, err := x509.ParsePKCS1PrivateKey(decoded.Bytes)
+	if err != nil {
+		return nil, err
+	}
+	return priv, nil
+}
+
+func ReadPublicKeyRSAfromString(pemString string) (*rsa.PublicKey, error) {
+	pemByte := *(*[]byte)(unsafe.Pointer(&pemString))
+	decoded, _ := pem.Decode(pemByte)
+	keyInterface, err := x509.ParsePKIXPublicKey(decoded.Bytes)
+	if err != nil {
+		fmt.Println(err)
+		return nil, err
+	}
+	pub := keyInterface.(*rsa.PublicKey)
+	return pub, nil
+}
+
+func GeneratePublicKeyPEMString(pub *rsa.PublicKey) string {
+	pubkeyBytes := x509.MarshalPKCS1PublicKey(pub)
+	pubkeyPem := pem.EncodeToMemory(
+		&pem.Block{
+			Type:  "RSA PUBLIC KEY",
+			Bytes: pubkeyBytes,
+		},
+	)
+	return string(pubkeyPem)
+}