http://jackxiang.com/index.php zh-cn http://jackxiang.com/post// jack <xdy108@126.com> Thu, 11 Jul 2013 04:16:03 +0000 http://jackxiang.com/post//
If you want to be interoperable with other PKCS  #7 padding implementations, like the Legion of the Bouncy Castle Java  cryptography APIs, you should always pad, that is a 8-byte (block size)  padding should be added, even if not necessary

<?php function encrypt($str, $key) {   $block = mcrypt_get_block_size('des', 'ecb');   $pad = $block - (strlen($str) % $block);   $str .= str_repeat(chr($pad), $pad);   return mcrypt_encrypt(MCRYPT_DES, $key, $str, MCRYPT_MODE_ECB); } function decrypt($str, $key) {   $str = mcrypt_decrypt(MCRYPT_DES, $key, $str, MCRYPT_MODE_ECB);   $block = mcrypt_get_block_size('des', 'ecb');   $pad = ord($str[($len = strlen($str)) - 1]);   return substr($str, 0, strlen($str) - $pad); } $str = "abcdef"; $key = "jack"; $abc = encrypt($str, $key); echo $abc."\n"; $str = decrypt($abc, $key); echo $str."\n"; ?>

来自：http://it.oyksoft.com/post/4831/ ]]> http://jackxiang.com/post//#blogcomment <user@domain.com> Thu, 01 Jan 1970 00:00:00 +0000 http://jackxiang.com/post//#blogcomment