Golang AES_set_decrypt_key Beispiele

Beispiel #1

Datei: aes.go Projekt: runcom/gossl

//Construct a new instance. see crypto/aes
// returning a block cipher that satisfies the crypto/cipher.Block interface
func NewCipher(key []byte) (cipher.Block, error) {
	aes := new(aesKey)
	key_p := pointerFromBytes(key)
	key_bits := C.int(len(key) * 8)
	if ret := C.AES_set_encrypt_key(key_p, key_bits, &aes._aes_encrypt_key); ret != 0 {
		// in case the error is something deep in OpenSSL land
		if err := sslerr.Error(); err != nil {
			return aes, err
		}
		if ret == -1 {
			return aes, errorInvalidKey
		}
		if ret == -2 {
			return aes, errorWrongSizeKey
		}
		// standard fallback error
		return aes, errorSettingKey
	}
	if ret := C.AES_set_decrypt_key(key_p, key_bits, &aes._aes_decrypt_key); ret != 0 {
		// in case the error is something deep in OpenSSL land
		if err := sslerr.Error(); err != nil {
			return aes, err
		}
		if ret == -1 {
			return aes, errorInvalidKey
		}
		if ret == -2 {
			return aes, errorWrongSizeKey
		}
		// standard fallback error
		return aes, errorSettingKey
	}
	return aes, nil
}

Beispiel #2

Datei: aes.go Projekt: postfix/go-ssl

//Construct a new instance. see crypto/aes
func NewCipher(key []byte) (cipher.Block, error) {
	aes := new(AESKey)
	key_p := pointerFromBytes(key)
	key_bits := C.int(len(key) * 8)
	if C.AES_set_encrypt_key(key_p, key_bits, &aes._aes_encrypt_key) != 0 {
		return aes, errors.New("problem setting key")
	}
	if C.AES_set_decrypt_key(key_p, key_bits, &aes._aes_decrypt_key) != 0 {
		return aes, errors.New("problem setting key")
	}
	return aes, nil
}