php 与java通用AES加密解密算法

太过爱你忘了你带给我的痛 2022-03-26 14:48 533阅读 0赞

转自：[https://www.cnblogs.com/grimm/p/7233050.html][https_www.cnblogs.com_grimm_p_7233050.html]

<?php  
defined('INDEX\_BLOCK\_LENGTH')   or define('INDEX\_BLOCK\_LENGTH',  12);  
defined('TOTAL\_HEADER\_LENGTH')  or define('TOTAL\_HEADER\_LENGTH', 8192);  
class AesController  
\{  
    protected $cipher = MCRYPT\_RIJNDAEL\_128;  
    protected $mode = MCRYPT\_MODE\_ECB;  
    protected $pad\_method = 'pkcs5';  
    protected $secret\_key = '';  
    protected $iv = '';  
    public function set\_cipher($cipher)  
    \{  
        $this->cipher = $cipher;  
    \}  
    public function set\_mode($mode)  
    \{  
        $this->mode = $mode;  
    \}  
    public function set\_iv($iv)  
    \{  
        $this->iv = $iv;  
    \}  
    public function set\_key($key)  
    \{  
        $this->secret\_key = $key;  
    \}  
    protected function pad\_or\_unpad($str, $ext)  
    \{  
        if (is\_null($this->pad\_method) )  
        \{  
            return $str;  
        \}  
        else  
        \{  
            $func\_name = \_\_CLASS\_\_ . '::' . $this->pad\_method . '\_' . $ext . 'pad';  
            if ( is\_callable($func\_name) )\{  
                $size = mcrypt\_get\_block\_size($this->cipher, $this->mode);  
                return call\_user\_func($func\_name, $str, $size);  
            \}  
        \}  
        return $str;  
    \}  
    protected function pad($str)  
    \{  
        return $this->pad\_or\_unpad($str, '');  
    \}  
    protected function unpad($str)  
    \{  
        return $this->pad\_or\_unpad($str, 'un');  
    \}  
    public function encrypt($str)  
    \{  
        $str = $this->pad($str);  
        $td = mcrypt\_module\_open($this->cipher, '', $this->mode, '');  
        if (empty($this->iv))\{  
            $iv = @mcrypt\_create\_iv(mcrypt\_enc\_get\_iv\_size($td), MCRYPT\_RAND);  
        \}else\{  
            $iv = $this->iv;  
        \}  
        mcrypt\_generic\_init($td, $this->secret\_key, $iv);  
        $cyper\_text = mcrypt\_generic($td, $str);  
        $rt=base64\_encode($cyper\_text);  
        mcrypt\_generic\_deinit($td);/\*结束解密，执行清理工作\*/  
        mcrypt\_module\_close($td);/\*关闭加密模块\*/  
        return $rt;  
    \}  
    public function decrypt($str)\{  
        $td = mcrypt\_module\_open($this->cipher, '', $this->mode, '');  
        if (empty($this->iv))\{  
            $iv = @mcrypt\_create\_iv(mcrypt\_enc\_get\_iv\_size($td), MCRYPT\_RAND);  
        \}else\{  
            $iv = $this->iv;  
        \}  
        mcrypt\_generic\_init($td, $this->secret\_key, $iv);  
        $decrypted\_text = mdecrypt\_generic($td, base64\_decode($str));  
        $rt = $decrypted\_text;  
        mcrypt\_generic\_deinit($td);  
        mcrypt\_module\_close($td);  
        return $this->unpad($rt);  
    \}  
    public static function pkcs5\_pad($text, $blocksize)  
    \{  
        $pad = $blocksize - (strlen($text) % $blocksize);  
        return $text . str\_repeat(chr($pad), $pad);  
    \}  
    public static function pkcs5\_unpad($text)  
    \{  
        $pad = ord($text\{strlen($text) - 1\});  
        if ($pad > strlen($text)) return false;  
        if (strspn($text, chr($pad), strlen($text) - $pad) != $pad) return false;  
        return substr($text, 0, -1 \* $pad);  
    \}  
\}

java版代码如下：

`import` `java.security.Key;`

`import` `javax.crypto.Cipher;`

`import` `javax.crypto.spec.SecretKeySpec;`

`import` `org.apache.commons.codec.binary.Base64;`

` `

`public` `class` `CryptAES {`

` `

`    ``private` `static` `final` `String AESTYPE =``"AES/ECB/PKCS5Padding"``;`

`    ``public` `static` `String AES_Encrypt(String keyStr, String plainText) {`

`        ``byte``[] encrypt =``null``;`

`        ``try``{`

`            ``Key key = generateKey(keyStr);`

`            ``Cipher cipher = Cipher.getInstance(AESTYPE);`

`            ``cipher.init(Cipher.ENCRYPT_MODE, key);`

`            ``encrypt = cipher.doFinal(plainText.getBytes());    `

`        ``}``catch``(Exception e){`

`            ``e.printStackTrace();`

`        ``}`

`        ``return` `new` `String(Base64.encodeBase64(encrypt));`

`    ``}`

`    ``public` `static` `String AES_Decrypt(String keyStr, String encryptData) {`

`        ``byte``[] decrypt =``null``;`

`        ``try``{`

`            ``Key key = generateKey(keyStr);`

`            ``Cipher cipher = Cipher.getInstance(AESTYPE);`

`            ``cipher.init(Cipher.DECRYPT_MODE, key);`

`            ``decrypt = cipher.doFinal(Base64.decodeBase64(encryptData));`

`        ``}``catch``(Exception e){`

`            ``e.printStackTrace();`

`        ``}`

`        ``return` `new` `String(decrypt).trim();`

`    ``}`

`    ``private` `static` `Key generateKey(String key)``throws` `Exception{`

`        ``try``{           `

`            ``SecretKeySpec keySpec =``new` `SecretKeySpec(key.getBytes(),``"AES"``);`

`            ``return` `keySpec;`

`        ``}``catch``(Exception e){`

`            ``e.printStackTrace();`

`            ``throw` `e;`

`        ``}`

`    ``}`

`    ``public` `static` `void` `main(String[] args) {`

`        `

`        ``String keyStr =``"UITN25LMUQC436IM"``; `

`        ``String plainText =``"this is a string will be AES_Encrypt"``;`

`        `

`        ``String encText = AES_Encrypt(keyStr, plainText);`

`        ``String decString = AES_Decrypt(keyStr, encText);`

`        `

`        ``System.out.println(encText);`

`        ``System.out.println(decString);`

`    ``}`

`}`

[https_www.cnblogs.com_grimm_p_7233050.html]: https://www.cnblogs.com/grimm/p/7233050.html

php 与java通用AES加密解密算法

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