php7 openssl函数替换mcrypt函数加密解密
以下是两者的区别及openssl替换mcrypt的方法：
替代
$key = '-2i61^';$iv = '&11r2(*3';$data = "123456789"; //要加密的数据if(php_version<5.6){ $a= base64_encode(mcrypt_encrypt(mcrypt_3des,$key,$data,mcrypt_mode_cbc,$iv)); echo 'mcrypt_encrypt:'.$a.'<br>'; //rtrim 移除字符串右侧的空白字符 $decrypt = rtrim(mcrypt_decrypt(mcrypt_3des,$key,base64_decode($a),mcrypt_mode_cbc,$iv),'\0'); echo 'mcrypt_decrypt:'.$decrypt.'<br>';} //使用mcrypt函数来对比$len = strlen($data);if($len%8){ $data = str_pad($data,$len+8-$len%8,"\0");}//使用空字符填充字符串的右侧,使字符串位数变为8的倍数$b = base64_encode(openssl_encrypt($data,'des-ede3-cbc',$key,openssl_raw_data|openssl_no_padding,$iv)); echo "openssl_encrypt:".$b. '<br>';$decrypt = openssl_decrypt(base64_decode($b),'des-ede3-cbc',$key,openssl_raw_data|openssl_no_padding,$iv);echo 'openssl_decrypt:'.$decrypt.'<br>';
运行结果
mcrypt_encrypt:o4/3pssvakrytilhbqer+g==mcrypt_decrypt:123456789openssl_encrypt:o4/3pssvakrytilhbqer+g==openssl_decrypt:123456789
然后来个对比，看看这两个函数的速度：
$key = '-2i61^';$iv = '&11r2(*3';$data = "123456789";if(php_version<5.6){ $start = microtime(true); for($i=0;$i<10000;$i++){ $a= base64_encode(mcrypt_encrypt(mcrypt_3des,$key,$data,mcrypt_mode_cbc,$iv)); } echo 'mcrypt_time:'; echo microtime(true)-$start.'<br>'; echo 'mcrypt_encrypt'.$a.'<br>'; $decrypt = rtrim(mcrypt_decrypt(mcrypt_3des,$key,base64_decode($a),mcrypt_mode_cbc,$iv),'\0'); echo 'mcrypt_decrypt'.$decrypt.'<br>';}$start = microtime(true);for($i=0;$i<10000;$i++){ $len = strlen($data); if($len%8){ $data = str_pad($data,$len+8-$len%8,"\0"); } $b = base64_encode(openssl_encrypt($data,'des-ede3-cbc',$key,openssl_raw_data|openssl_no_padding,$iv)); }echo "openssl_time:"; echo microtime(true)-$start . '<br>';echo "openssl_encrypt:".$b. '<br>';$decrypt = openssl_decrypt(base64_decode($b),'des-ede3-cbc',$key,openssl_raw_data|openssl_no_padding,$iv);echo 'openssl_decrypt'.$decrypt.'<br>';
结果
mcrypt_time:1.8425710201263mcrypt_encrypto4/3pssvakrytilhbqer+g==mcrypt_decrypt123456789openssl_time:0.023201942443848openssl_encrypt:o4/3pssvakrytilhbqer+g==openssl_decrypt123456789
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以上就是php7 openssl函数替换mcrypt函数加密解密方法的详细内容。