AES CBC PKCS7 C# C++

  c++算法见：

 

 

c#：

        public static string encrypt(string toencrypt, string key, string iv)
        {
            byte[] keyarray = utf8encoding.utf8.getbytes(key);
            byte[] ivarray = utf8encoding.utf8.getbytes(iv);
            byte[] toencryptarray = utf8encoding.utf8.getbytes(toencrypt);

            rijndaelmanaged rdel = new rijndaelmanaged();
            rdel.key = keyarray;
            rdel.iv = ivarray;
            rdel.mode = ciphermode.cbc;
            rdel.padding = paddingmode.pkcs7;

            icryptotransform ctransform = rdel.createencryptor();
            byte[] resultarray = ctransform.transformfinalblock(toencryptarray, 0, toencryptarray.length);

            return convert.tobase64string(resultarray, 0, resultarray.length);
        }

        public static string decrypt(string todecrypt, string key, string iv)
        {
            byte[] keyarray = utf8encoding.utf8.getbytes(key);
            byte[] ivarray = utf8encoding.utf8.getbytes(iv);
            byte[] toencryptarray = convert.frombase64string(todecrypt);

            rijndaelmanaged rdel = new rijndaelmanaged();
            rdel.key = keyarray;
            rdel.iv = ivarray;
            rdel.mode = ciphermode.cbc;
            rdel.padding = paddingmode.pkcs7;

            icryptotransform ctransform = rdel.createdecryptor();
            byte[] resultarray = ctransform.transformfinalblock(toencryptarray, 0, toencryptarray.length);

            return utf8encoding.utf8.getstring(resultarray);
        }

 

注意 key 和 iv 都需要为16位字符串

 

代码实现：https://1drv.ms/u/s!at1zjv3_16acmb8aisvhmvdyecfqlw