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zhihengjiang / shadowsocks-java

A Java port of shadowsocks
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怎么添加aes-256-gcm #4

Open aaaaaaanthony opened 3 years ago

zhihengjiang commented 3 years ago

目前aes只支持了cfb以及ofb两种模式，gcm还不支持，但很容易进行支持，只需要在现有AESCrypto 类上进行简单地扩展即可

aaaaaaanthony commented 3 years ago 
    @Override
    protected StreamCipher createCipher(byte[] iv, boolean encrypt) throws CryptoException {

        GCMBlockCipher cipher = new GCMBlockCipher(new AESEngine());
        AEADParameters parameters = new AEADParameters(new KeyParameter(mKey), 128, iv, null);
        cipher.init(encrypt, parameters);
}

GCMBlockCipher 不继承StreamCipher ...

zhihengjiang commented 3 years ago 
    @Override
    protected StreamCipher createCipher(byte[] iv, boolean encrypt) throws CryptoException {

        GCMBlockCipher cipher = new GCMBlockCipher(new AESEngine());
        AEADParameters parameters = new AEADParameters(new KeyParameter(mKey), 128, iv, null);
        cipher.init(encrypt, parameters);
}

GCMBlockCipher 不继承StreamCipher ...

嗯嗯，gcm属于认证加密，确实不能简单基于原来的加密方法来扩展了