func GetRsaPublicKeyForPkcs8PublicKeyPath(pubKeyPkcs8Path string) (*rsa.PublicKey, error) {
var pubKey *rsa.PublicKey
isFileGtZero, err := ioutilmore.IsFileWithSizeGtZero(pubKeyPkcs8Path)
if err != nil {
return pubKey, err
} else if isFileGtZero == false {
return pubKey, errors.New("400: key file path is zero size.")
}
pubKeyPkcs8Bytes, err := ioutil.ReadFile(pubKeyPkcs8Path)
if err != nil {
return pubKey, err
}
block, _ := pem.Decode(pubKeyPkcs8Bytes)
pubKeyInterface, err := x509.ParsePKIXPublicKey(block.Bytes)
if err != nil {
return pubKey, err
}
pubKey, ok := pubKeyInterface.(*rsa.PublicKey)
if !ok {
return pubKey, errors.New("500: Cannot convert pub interface{} to *rsa.PublicKey")
}
return pubKey, nil
}
func GetRsaPrivateKeyForPkcs1PrivateKeyPath(prvKeyPKCS1Path string) (*rsa.PrivateKey, error) {
var prvKey *rsa.PrivateKey
isFileGtZero, err := ioutilmore.IsFileWithSizeGtZero(prvKeyPKCS1Path)
if err != nil {
return prvKey, err
} else if isFileGtZero == false {
return prvKey, errors.New("400: key file path is zero size.")
}
prvKeyPkcs1Bytes, err := ioutil.ReadFile(prvKeyPKCS1Path)
if err != nil {
return prvKey, err
}
block, _ := pem.Decode(prvKeyPkcs1Bytes)
return x509.ParsePKCS1PrivateKey(block.Bytes)
}
func GetRsaPrivateKeyForPkcs1PrivateKeyPathWithPassword(prvKeyPKCS1Path string, password []byte) (*rsa.PrivateKey, error) {
var prvKey *rsa.PrivateKey
isFileGtZero, err := ioutilmore.IsFileWithSizeGtZero(prvKeyPKCS1Path)
if err != nil {
return prvKey, err
} else if isFileGtZero == false {
return prvKey, errors.New("400: key file path is zero size.")
}
prvKeyPkcs1BytesEnc, err := ioutil.ReadFile(prvKeyPKCS1Path)
if err != nil {
return prvKey, err
}
block, _ := pem.Decode(prvKeyPkcs1BytesEnc)
prvKeyBytes, err := x509.DecryptPEMBlock(block, password)
if err != nil {
return prvKey, err
}
return x509.ParsePKCS1PrivateKey(prvKeyBytes)
}