diff options
Diffstat (limited to 'test/openssl/test_cipher.rb')
| -rw-r--r-- | test/openssl/test_cipher.rb | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/test/openssl/test_cipher.rb b/test/openssl/test_cipher.rb index 088dbc140d..156fa2a9c9 100644 --- a/test/openssl/test_cipher.rb +++ b/test/openssl/test_cipher.rb @@ -187,7 +187,8 @@ class OpenSSL::TestCipher < Test::Unit::TestCase tag = cipher.auth_tag decipher = new_decryptor('aes-128-gcm', key, iv) - decipher.auth_tag = tag[0..-2] << tag[-1].succ + tag.setbyte(-1, (tag.getbyte(-1) + 1) & 0xff) + decipher.auth_tag = tag decipher.auth_data = "aad" assert_raise OpenSSL::Cipher::CipherError do |