加密算法blowfish 多语言

深入探讨PHP加密算法Blowfish原理与实践

最新推荐文章于 2021-03-10 00:12:24 发布

转载最新推荐文章于 2021-03-10 00:12:24 发布 · 235 阅读

文章标签：

#php #开发工具 #java

本文详细解析了PHP加密算法Blowfish的工作机制，包括其密钥和初始化向量（IV）的使用，以及如何进行256位和128位的加密操作。通过实例代码展示如何在PHP环境中实现Blowfish加密，同时提供测试向量供验证实现的正确性。此外，文章还介绍了Blowfish加密在不同场景下的应用案例，并对比了不同加密方式的输出结果。

php加密算法blowfish

<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2016-02-14
 * Time: 20:03
 */

function newline()
{
    printf("<br>");
}

$cipher = mcrypt_module_open(MCRYPT_BLOWFISH, '', MCRYPT_MODE_ECB, '');
// The block-size of the Blowfish algorithm is 64-bits, therefore our IV
// is always 8 bytes:
$iv = '12345678';


$key256 = '1234567890123456ABCDEFGHIJKLMNOP';
$key256 = 'closewbq';
$key128 = 'closewbq';

printf("iv: %s\n", bin2hex($iv));
newline();
printf("key256: %s\n", bin2hex($key256));
newline();
printf("key128: %s\n", bin2hex($key128));
newline();
$cleartext = 'The quick brown fox jumped over the lazy dog';
$cleartext='blowfish';
printf("clearText: %s", $cleartext);
newline();
// Do 256-bit blowfish encryption:
// The strengh of the encryption is determined by the length of the key
// passed to mcrypt_generic_init
if (mcrypt_generic_init($cipher, $key256, $iv) != -1) {
    // PHP pads with NULL bytes if $cleartext is not a multiple of the block size..
    $cipherText = mcrypt_generic($cipher, $cleartext);
    mcrypt_generic_deinit($cipher);

    // Display the result in hex.
    printf("256-bit blowfish encrypted:\n%s\n\n", bin2hex($cipherText));
    newline();
}

// 128-bit blowfish encryption:
if (mcrypt_generic_init($cipher, $key128, $iv) != -1) {
    // PHP pads with NULL bytes if $cleartext is not a multiple of the block size..
    $cipherText = mcrypt_generic($cipher, $cleartext);
    mcrypt_generic_deinit($cipher);

    // Display the result in hex.
    printf("128-bit blowfish encrypted:\n%s\n\n", bin2hex($cipherText));
}

mcrypt_module_close($cipher)
// -------
// Results
// -------
// You may use these as test vectors for testing your Blowfish implementations...
//
// iv: 3132333435363738
// key256: 313233343536373839303132333435364142434445464748494a4b4c4d4e4f50
// key128: 31323334353637383930313233343536
// clearText: The quick brown fox jumped over the lazy dog
//
// 256-bit blowfish encrypted:
// 276855ca6c0d60f7d9708210440c1072e05d078e733b34b4198d609dc2fcc2f0c30926cdef3b6d52baf6e345aa03f83e
//
// 128-bit blowfish encrypted:
// d2b5abb73208aea3790621d028afcc74d8dd65fb9ea8e666444a72523f5ecca60df79a424e2c714fa6efbafcc40bdca0

?>

php

iv: 3132333435363738
key256: 636c6f7365776271
key128: 636c6f7365776271
clearText: blowfish
256-bit blowfish encrypted: 6a3cbb16daef0ae0
128-bit blowfish encrypted: 6a3cbb16daef0ae0

base64结果：

NmEzY2JiMTZkYWVmMGFlMA==

LockBox 3

Wvg8gWlkvHbb8WloO0jmUQ==

这是以16进制输出的字符，不是base64输出的结果。

https://www.tools4noobs.com/online_tools/decrypt/

iv是忽略不用的。

https://webnet77.net/cgi-bin/helpers/blowfish.pl

算法：blowfish-compat

PlainText:

blowfish

ascii:(98, 108, 111, 119, 102, 105, 115, 104)

Hex Byte:(54, 50, 54, 67, 54, 70, 55, 55, 54, 54, 54, 57, 55, 51, 54, 56)

Hex Str:626C6F7766697368

base64:Ymxvd2Zpc2g=

key:
closewbq

ascii:(99, 108, 111, 115, 101, 119, 98, 113)

hex byte:(54, 51, 54, 67, 54, 70, 55, 51, 54, 53, 55, 55, 54, 50, 55, 49)

hex str:636C6F7365776271

baes64:Y2xvc2V3YnE=

cipherText:

6a3cbb16daef0ae0

6A3CBB16DAEF0AE0

ECB模式下IV向量忽略不用，用PHP加密结果也是

128/256都是 6a3cbb16daef0ae0

加密后是8个字符， (106, 60, 187, 22, 218, 239, 10, 224)=8个，ascii是j<;'#$16'Zo'#$A'`,base64是ajy7FtrvCuA=

转换成16进制成了16个字符，(54, 65, 51, 67, 66, 66, 49, 54, 68, 65, 69, 70, 48, 65, 69, 48)=16个，

ascii是6a3cbb16daef0ae0，base64：NmEzY2JiMTZkYWVmMGFlMA==

6A3CBB16DAEF0AE0 ,b64: NkEzQ0JCMTZEQUVGMEFFMA==

delphi box3

加密直接是16个字符

codecMainDemo.Password := 'closewbq';

(90, 248, 60, 129, 105, 100, 188, 118, 219, 241, 105, 104, 59, 72, 230, 81) ,base64 后的字符串就是Wvg8gWlkvHbb8WloO0jmUQ==

codecMainDemo.UTF8Password

j<;Zo`

(106, 60, 187, 22, 218, 239, 10, 224, 128, 177, 62, 128, 70, 13, 232, 4)=16个

hex

6A3CBB16DAEF0AE080B13E80460DE804，也就是 (54, 65, 51, 67, 66, 66, 49, 54, 68, 65, 69, 70, 48, 65, 69, 48, 56, 48, 66, 49, 51, 69, 56, 48, 52, 54, 48, 68, 69, 56, 48, 52)

bae64：ajy7FtrvCuCAsT6ARg3oBA==

这是用字节base64的结果，推荐

base64:NkEzQ0JCMTZEQUVGMEFFMDgwQjEzRTgwNDYwREU4MDQ=

这是用16进制字符串加密的结果，不推荐。