C or C Plus Plus Can't encrypt/encrypt with Java and C# data

[Skycat]

In C source code:

#define FIXED_KEY \
    size_t i;\
    uint8_t fixed_key[16];\
    memcpy(fixed_key, key, 16);\
    for (i = 0; (i < 16) && (fixed_key[i] != 0); ++i);\
    for (++i; i < 16; ++i) fixed_key[i] = 0;\

the last line will clear the key which after value 0， but in Java and C# source code the fixed_key not do this：
Java:

 private static byte[] fixKey(byte[] key) {
        if (key.length == 16) return key;
        byte[] fixedkey = new byte[16];
        if (key.length < 16) {
            System.arraycopy(key, 0, fixedkey, 0, key.length);
        }
        else {
            System.arraycopy(key, 0, fixedkey, 0, 16);
        }
        return fixedkey;
    }

C#:

private static Byte[] FixKey(Byte[] key) {
        if (key.Length == 16) return key;
        Byte[] fixedkey = new Byte[16];
        if (key.Length < 16) {
            key.CopyTo(fixedkey, 0);
        }
        else {
            Array.Copy(key, 0, fixedkey, 0, 16);
        }
        return fixedkey;
}

[andot]

Java and C# will automatically fill the fixedkey with 0 during initialization.

[Skycat]

Java and C# will automatically fill the fixedkey with 0 during initialization.

这样就导致C中使用key = {1, 0, 1, 0}， 通过FIXED_KEY后最终加密key会变成{1, 0, 0, 0, 0....}，那在C中加密的结果在Java和C#中使用key = {1, 0, 1, 0}无法解密，因为Java和C#中的最终key为{1, 0, 1, 0, 0.........}

[andot]

嗯，C 语言这里是把 \0 作为字符串结束符使用的。要满足你的要求，需要跟 #3 中说的那样，加两个支持设置 binary key 的函数才行。

[Skycat]

嗯，当时没注意到这个issue，为了避免改实现库的代码我现在是在key上去掉0值去规避掉不同语言上兼容这个问题