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//获取可用的加密算法

$a = openssl_get_cipher_methods();

print_r($a)

//AES加密解密

$data = 'wo shi aes jiami shuju';//待加密的数据

$key = uniqid();//加密的密钥

$method = 'AES-128-CBC';//加密的方式

$iv = '1234567812345678';//初始化向量，必须是16位字符

$a = openssl_encrypt($data,$method,$key,OPENSSL_RAW_DATA,$iv);

//打印加密结果

print_r($a);

//解密

$d = openssl_decrypt($a,$method,$key,OPENSSL_RAW_DATA,$iv);

//解密后的数据

print_r($d);

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//使用公钥加密，私钥解密

$public_key = "-----BEGIN PUBLIC KEY-----

MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA14VJBWSyVOI4Q4aV+Cvl

GX4Vb4wczPw0qQbGYAYzfuA7+RpO/X5DG7dFjdBMmb9cHvdWY8+uvKDVuHjbvCpm

3nSTgMbCLm/zDDTH8MUySSaxvm0tbdWm+L1Rinw5LZ+B1J9tHEXMwJZ2g5ZS4OZ0

4xlXx/4GWd9QBuV036er47J/cZ19WPgBDqQ4Mmm2X2na46NCeRenRBXLsaQhxvEe

5pX3WtguQtr+QrcekAmBoI1Xc0xhKDyXZ34rqZNvVCUNn11VzDcffanxlmTFFKDp

QCZLVf8gtSdcxxQQrOfStgLoyYbN1e2Spb/szfQHtbSZ1qHg1frhCvjgOmZ6gDi+

OQIDAQAB

-----END PUBLIC KEY-----";//公钥

$private_key = "-----BEGIN PRIVATE KEY-----

MIIEvAIBADANBgkqhkiG9w0BAQEFAASCBKYwggSiAgEAAoIBAQDXhUkFZLJU4jhD

hpX4K+UZfhVvjBzM/DSpBsZgBjN+4Dv5Gk79fkMbt0WN0EyZv1we91Zjz668oNW4

eNu8KmbedJOAxsIub/MMNMfwxTJJJrG+bS1t1ab4vVGKfDktn4HUn20cRczAlnaD

llLg5nTjGVfH/gZZ31AG5XTfp6vjsn9xnX1Y+AEOpDgyabZfadrjo0J5F6dEFcux

pCHG8R7mlfda2C5C2v5Ctx6QCYGgjVdzTGEoPJdnfiupk29UJQ2fXVXMNx99qfGW

ZMUUoOlAJktV/yC1J1zHFBCs59K2AujJhs3V7ZKlv+zN9Ae1tJnWoeDV+uEK+OA6

ZnqAOL45AgMBAAECggEAEdjMsjCjf9n31MepVZK09wZ02fbdT7A24CRaewsoaoJB

FSCzl9RD1GC51sOABF9PTpUmxz8kdiRPbmY7s/pC6Hr41/odjGDi3IjmYa7CukIF

CALcdzLxD7oFrZUZ2whRZP0KuQOir/QFvmHNXShYV5H6reoANqMCan/HzNmCp2ky

pdtWd+YOFnvwP/m6Xw/mKWN2cFEEdME32Y9fnUq6gCpmgEQLZkEz0XQ53R9Yj6+O

TpYhLzCgox5+HRL+PmE8G3XdVNOhbesmsTX4cS4s5/bWhw/iuZtlSGvNz867p0Ab

jNiouWpoiLM9uHwGURndg+fslLKrBLU0fQeeXYplsQKBgQD3iEDX/Nzo19RZWz6T

gf0r6S7tMtMWQr1InM8fuPxNXsT5QIuddNVp47UMs91F8K5bzGim7+0hM9SnBUsp

/wKw9DRQuELziSdFGyfyo4lDiVvjqvMInph1yLfXaLdz9fxlT5+a8fUFJQqH65w2

SL+ice07mWt7ak/f1bfGKeAuVQKBgQDe5LFNtDKWLxMaO8lVTR0wWziTLImu+E3e

svDIqZszyzqsLnZ4Qu6CXigrXQka8s1LRVF1kf4NQc65uutsFwitfOLitFa/h2wk

5K6Rqwl95QfkuYJpDvU4/IQ21O7HqRBt050QvBrNOfY8MCQUi3fisiP+mOkJS41Z

iVRmQsfsVQKBgCjMinOPOBIg0N1RjsTdXg9IxfVOtUAsC+rV/cWqxdsyzaCPpPN0

+GAVqhfH5abLftGepXkufpVEZ76HvtXTNGxaM+1CEbb2WkSnrzPtBIjfMQgbeydm

jJaNWM/mcKZqWwmP0CzHyKzqaAvzJ7JC12M9B+8U4IRdB4FLRpkg+dRpAoGAJkZz

Q/qrrSqMRzb5DdLeLk2b23oMcqVlCdcEjhDB/BTsEGEyKtijiHOOxlOFmsETC9ft

cxkM3U3tp+s3Pip+bPxDIdcCBoXExlkWuSD70kigIGDSyiOtbInAUoIiNtsLXTC3

igYjPBa1+AP0Tirc/WrFz5SGf/gfX767ZYwWNLkCgYBuHZrIWT0Feg5dJAkF7NMH

1Fes0Gn5sAQVvd9HVG4FAZxqJQa37M3GKD1m4ifBGtaDMgtWyVcMTdsr5hjpJB0G

sEYlg3TDyd096Axr+I7KHDlIzboJjDWDwzwtqkTzgBRlxsClhqW/y/1y1o/QI9Rj

CA7iK/XSPTdstVk5IPL/Aw==

-----END PRIVATE KEY-----";//私钥

$text ='我是待加密的内容';

//公钥加密，参数二$data为加密后的内容

$res = openssl_public_encrypt($text,$encrypt,$public_key);

if($res==false) echo '加密失败';

//私钥解密，参数一：待解密的数据 

//参数二：解密后的明文内容

$res = openssl_private_decrypt($encrypt,$decrypt,$private_key);

if($res==false) echo '解密失败';

echo '解密后的明文数据：'.$decrypt

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//使用公钥加密，私钥解密

$public_key = "公钥";

$private_key = "私钥";

$text = "我是待加密的内容";

//公钥加密，参数二$data为加密后的内容

//参数三：私钥

$res = openssl_private_encrypt($text,$encrypt,$private_key);

if($res==false) echo '加密失败';

//私钥解密，参数一：待解密的数据 

//参数二：解密后的明文内容

//参数三：公钥

$res = openssl_public_decrypt($encrypt,$decrypt,$public_key );

if($res==false) echo '解密失败';

echo '解密后的明文数据：'.$decrypt