Function Encrypt

tools/security/encrypt.go:14–37

Encrypt encrypts "data" with the specified "key" (must be valid 32 char AES key). This method uses AES-256-GCM block cypher mode.

(data []byte, key string)

//
// This method uses AES-256-GCM block cypher mode.
func Encrypt(data []byte, key string) (string, error) {
	block, err := aes.NewCipher([]byte(key))
	if err != nil {
		return "", err
	}

	gcm, err := cipher.NewGCM(block)
	if err != nil {
		return "", err
	}

	nonce := make([]byte, gcm.NonceSize())

	// populates the nonce with a cryptographically secure random sequence
	if _, err := io.ReadFull(crand.Reader, nonce); err != nil {
		return "", err
	}

	cipherByte := gcm.Seal(nonce, nonce, data, nil)

	result := base64.StdEncoding.EncodeToString(cipherByte)

	return result, nil
}

// Decrypt decrypts encrypted text with key (must be valid 32 chars AES key).
//