func GenerateECJWK(kid string, alg string, use string, prv_key ecdsa.PrivateKey) (*JWK, error) {
x_base64 := cyhbase64.EncodeURLSafe(prv_key.X.Bytes())
y_base64 := cyhbase64.EncodeURLSafe(prv_key.Y.Bytes())
var base_jwk *JWK
base_jwk.Kid = kid
base_jwk.Kty = "EC"
base_jwk.Crv = prv_key.Curve.Params().Name
base_jwk.Alg = alg
base_jwk.Use = use
base_jwk.X = x_base64
base_jwk.Y = y_base64
return base_jwk, nil
}
func GenerateRSAJWK(kid string, alg string, use string, prv_key *rsa.PrivateKey) (*JWK, error) {
buf_exponent := new(bytes.Buffer)
num_exponent := uint32(prv_key.PublicKey.E)
err_exponent := binary.Write(buf_exponent, binary.BigEndian, num_exponent)
if err_exponent != nil {
return nil, err_exponent
}
trim_buf_exponent := bytes.TrimLeft(buf_exponent.Bytes(), "\x00")
exponent_base64 := cyhbase64.EncodeURLSafe(trim_buf_exponent)
modulus_base64 := cyhbase64.EncodeURLSafe(prv_key.PublicKey.N.Bytes())
var base_jwk *JWK
base_jwk.Kid = kid
base_jwk.Kty = "RSA"
base_jwk.Alg = alg
base_jwk.Use = use
base_jwk.N = modulus_base64
base_jwk.E = exponent_base64
return base_jwk, nil
}