Questions about ebc

[chuzhaoqian]

`dart var FortunaKey = 'qHjzUlcH02Q0zupxOSPPVQoY-LBI8Cmf4WoUNhw90B4==';

var aesEncrypter = AesCrypt(FortunaKey, 'ecb');

String encrypted = aesEncrypter.encrypt('1234567890', 'YueITUmQ0JBjH8==');

print(encrypted); `

`log Unhandled exception: type 'ParametersWithIV' is not a subtype of type 'KeyParameter' of 'params'

0 AESFastEngine.init (package:steel_crypt/PointyCastleN/block/aes_fast.dart)

1 ECBBlockCipher.init (package:steel_crypt/PointyCastleN/block/modes/ecb.dart:37:23)

2 PaddedBlockCipherImpl.init (package:steel_crypt/PointyCastleN/padded_block_cipher/padded_block_cipher_impl.dart:43:12)

3 AesCrypt.encrypt (package:steel_crypt/src/aes.dart:67:15)

4 main (test.dart:22:34)

5 _startIsolate. (dart:isolate-patch/isolate_patch.dart:303:32)

6 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:172:12)

`

[AKushWarrior]

This actually looks like good code on your part, so I'll spend some time figuring out what's wrong here. Thanks for the heads up, and I'll comment back when I publish a hotfix.

[AKushWarrior]

Okay, the issue is fixed. The problem is that ECB, as a mode, is incompatible with an IV. Thus, there was an internal error with passing an IV, since I abstract AES modes together. Regardless, it's been fixed. If you update to the latest version of steel_crypt (1.3.2+1), you will be able to run the code below:

var FortunaKey = 'qHjzUlcH02Q0zupxOSPPVQoY-LBI8Cmf4WoUNhw90B4==';

var aesEncrypter = AesCrypt(FortunaKey, 'ecb');

String encrypted = aesEncrypter.encrypt('1234567890');

print(encrypted);

However, I would be remiss if I didn't note that ECB is dangerously insecure. Because it's the only mode which doesn't take an IV, it's susceptible to key-parsing attacks, and should only ever be used with small (length < 16) blocks of data. Because of this, I'd recommend you use another mode; my personal recommendation is CFB-64.