php mcrypt加密与解密的小例子

4. /**
5. * mcrypt加密与解密
6. * by bbs.it-home.org
7. */
8. $data = 'data';
9. $key = "key";

10. $algorithm = MCRYPT_BLOWFISH;

11. $mode = MCRYPT_MODE_CBC;
12. $iv = mcrypt_create_iv(mcrypt_get_iv_size($algorithm,$mode), MCRYPT_DEV_URANDOM);

13. $encrypted_data = mcrypt_encrypt($algorithm, $key, $data, $mode, $iv);

14. $decrypted_data = mcrypt_decrypt($algorithm, $key, $encrypted_data, $mode, $iv);

15. print "解密数据为：$decrypted_data";

16. ?>

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