AES/ECB/PKCS7Padding cannot be implemented

[tangzejin921]

I want to use AES/ECB/PKCS7Padding But code error reporting CODE： var key = utf8.encode("0123456789abcdef"); var iv = utf8.encode(""); CipherParameters params = new PaddedBlockCipherParameters(new ParametersWithIV(new KeyParameter(key), iv), null);

PaddedBlockCipherImpl cipherImpl = new PaddedBlockCipherImpl(new PKCS7Padding(), new ECBBlockCipher(new AESFastEngine())); cipherImpl.init(true, params); var process = cipherImpl.process(utf8.encode("test")); print(process);

ERR：

type 'ParametersWithIV' is not a subtype of type 'KeyParameter' of 'params'

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

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

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[tangzejin921]

I should use ipherParameters params = new PaddedBlockCipherParameters(new KeyParameter(key), null);