RSA加密解密
rsa加密解密:
安装openssl:
切换到php安装目录的etx/openssl目录
cd /home/tao/soft/php-5.2.13/ext/openssl
openssl目录下有个config.w32和config0.m4,把config0.m4改名为config.m4(原因不解释)
mv config0.m4 config.m4
$PHP_PREFIX/bin/phpize或直接/usr/local/bin/phpize
./configure --with-openssl
--with-php-config=/usr/local/php/bin/php-config
make
make test
make install
在php.ini内加入以下内容:
extension_dir =
"/usr/local/php/lib/php/extensions/no-debug-non-zts-20060613/"
extension = "openssl.so"
重启php、nginx后生效
openssl_pkey_get_private 系列函数,windows下需要加载 extension=php_openssl.dll;linux下extension=openssl.so。
下载开源RSA密钥生成工具openssl(通常Linux系统都自带该程序),解压缩至独立的文件夹,进入其中的bin目录,执行以下命令:
openssl genrsa -out rsa_private_key.pem 1024
openssl pkcs8 -topk8 -inform PEM -in rsa_private_key.pem -outform PEM -nocrypt -out private_key.pem
openssl rsa -in rsa_private_key.pem -pubout -out rsa_public_key.pem
第一条命令生成原始 RSA私钥文件 rsa_private_key.pem,第二条命令将原始 RSA私钥转换为 pkcs8格式,第三条生成RSA公钥 rsa_public_key.pem
从上面看出通过私钥能生成对应的公钥,因此我们将私钥private_key.pem用在服务器端,公钥发放给android跟ios等前端
openssl_pkey_get_private
openssl_pkey_get_public
openssl_private_encrypt
openssl_public_decrypt
openssl_public_encrypt
openssl_private_decrypt
<?php //私钥加密,公钥解密 $privateFile = "rsa_private_key.pem"; $privateKey = file_get_contents($privateFile); $pi_key = openssl_pkey_get_private($privateKey); //print_r($pi_key);echo "\n"; $data = "aassssasssddd";//原始数据 echo "source:".$data."\n"; $encrypted = ""; $decrypted = ""; openssl_private_encrypt($data,$encrypted,$pi_key);//私钥加密 echo $encrypted."||||\n"; $encrypted = base64_encode($encrypted); echo $encrypted,"\n"; $publicFile = "rsa_public_key.pem"; $publicKey = file_get_contents($publicFile); $pu_key = openssl_pkey_get_public($publicKey); openssl_public_decrypt(base64_decode($encrypted),$decrypted,$pu_key);//私钥加密的内容通过公钥可用解密出来 echo $decrypted,"\n"; //公钥加密,私钥解密 $data = "abcdefg"; openssl_public_encrypt($data,$encrypted,$pu_key); openssl_private_decrypt($encrypted,$decrypted,$pi_key); echo $decrypted;
by simpman