先是MD5实验,结果相同,但使用Blowfish实验,怎么做也成功不了
调用如下:
<?php
$cipher = mcrypt_module_open(MCRYPT_BLOWFISH, '', MCRYPT_MODE_ECB, '');
$iv = '00000000';
$key = "strkey11";
$stext = '38A0E9312DDA8F7C16B9A12159168C76';
$stext = md5($stext, true);
//经过调试知道,在这时$stext的值与C++中MD5后的结果一致
if (mcrypt_generic_init($cipher, $key, $iv) != -1)
{
$dtext = mcrypt_generic($cipher,$stext );
mcrypt_generic_deinit($cipher);
// Display the result in hex.
printf("blowfish encrypted:<br>%s<br><br>",strtoupper(bin2hex($dtext)));
}
mcrypt_module_close($cipher);
C++的是这样:
MD5_CTX md5;
unsigned char str[16];
md5.MD5String(strSource.c_str() ,str);
BlockCipher *bf;
char key[] = "strkey11"; //Key
bf = new BlowFish();
bf->setKey((void *)key, 8*8);
bf->encrypt((void *)str, 8); //unsigned char str[16];
bf->encrypt((void *)(str+8), 8);
char temp1[4] = {0};
char buff1[128] = {0};
for(int i = 0;i<16;i++)
{
sprintf(temp1,"%02x",str[i]);
strcat(buff1,temp1);
}
AnsiString strResult = String(buff1).UpperCase();
delete bf;
------解决方案--------------------
$iv = '00000000'; ???
按 bf->setKey((void *)key, 8*8); 理解
应该是
$iv = "\x00\x00\x00\x00\x00\x00\x00\x00";
吧?
------解决方案--------------------
IV is ignored in ECB. IV MUST exist in CFB, CBC, STREAM, nOFB and OFB modes.
MCRYPT_MODE_ECB的模式,$iv是忽略的,应该不是这个问题。
好像是加密之前要padding,你试试看
$size = mcrypt_get_block_size(MCRYPT_BLOWFISH, MCRYPT_MODE_ECB);
$input = pkcs5_pad($input, $size);
function pkcs5_pad ($text, $blocksize)
{
$pad = $blocksize - (strlen($text) % $blocksize);
return $text . str_repeat(chr($pad), $pad);
}
function pkcs5_unpad($text)
{
$pad = ord($text{strlen($text)-1});
if ($pad > strlen($text)) return false;
if (strspn($text, chr($pad), strlen($text) - $pad) != $pad) return false;