本文实例讲述了PHP7.1实现的AES与RSA加密操作。分享给大家供大家参考，具体如下：
AES:
<?php
header('Content-Type: text/plain;charset=utf-8');
$data = 'phpbest';
$key = 'oScGU3fj8m/tDCyvsbEhwI91M1FcwvQqWuFpPoDHlFk='; //echo base64_encode(openssl_random_pseudo_bytes(32));
$iv = 'w2wJCnctEG09danPPI7SxQ=='; //echo base64_encode(openssl_random_pseudo_bytes(16));
echo '内容: '.$data."\n";
$encrypted = openssl_encrypt($data, 'aes-256-cbc', base64_decode($key), OPENSSL_RAW_DATA, base64_decode($iv));
echo '加密: '.base64_encode($encrypted)."\n";
$encrypted = base64_decode('To3QFfvGJNm84KbKG1PLzA==');
$decrypted = openssl_decrypt($encrypted, 'aes-256-cbc', base64_decode($key), OPENSSL_RAW_DATA, base64_decode($iv));
echo '解密: '.$decrypted."\n";
?>
用openssl生成rsa密钥对(私钥/公钥):
openssl genrsa -out rsa_private_key.pem 2048 openssl rsa -pubout -in rsa_private_key.pem -out rsa_public_key.pem
RSA:
<?php
header('Content-Type: text/plain;charset=utf-8');
$data = 'phpbest';
echo '原始内容: '.$data."\n";
openssl_public_encrypt($data, $encrypted, file_get_contents(dirname(__FILE__).'/rsa_public_key.pem'));
echo '公钥加密: '.base64_encode($encrypted)."\n";
$encrypted = base64_decode('nMD7Yrx37U5AZRpXukingESUNYiSUHWThekrmRA0oD0=');
openssl_private_decrypt($encrypted, $decrypted, file_get_contents(dirname(__FILE__).'/rsa_private_key.pem'));
echo '私钥解密: '.$decrypted."\n";
?>
PS：关于加密解密感兴趣的朋友还可以参考本站在线工具：
在线RSA加密/解密工具：
http://tools.jb51.net/password/rsa_encode
文字在线加密解密工具（包含AES、DES、RC4等）：
http://tools.jb51.net/password/txt_encode
在线散列/哈希算法加密工具:
http://tools.jb51.net/password/hash_encrypt
在线MD5/hash/SHA-1/SHA-2/SHA-256/SHA-512/SHA-3/RIPEMD-160加密工具：
http://tools.jb51.net/password/hash_md5_sha
在线sha1/sha224/sha256/sha384/sha512加密工具：
http://tools.jb51.net/password/sha_encode
希望本文所述对大家PHP程序设计有所帮助。
