在PHP开发过程中,有时候需要对信息进行加解密,尤其是做app客户端对服务器请求数据的时候,信息加密是必不可少的,那么,怎么对信息进行加解密呢?
这里主要是说RSA加解密。
首先,需要生成公钥和私钥,至于怎么生成就不介绍了,百度一下。。
直接上代码:
//私钥 $private_key = '-----BEGIN RSA PRIVATE KEY----- MIICXQIBAAKBgQC3//sR2tXw0wrC2DySx8vNGlqt3Y7ldU9+LBLI6e1KS5lfc5jl TGF7KBTSkCHBM3ouEHWqp1ZJ85iJe59aF5gIB2klBd6h4wrbbHA2XE1sq21ykja/ Gqx7/IRia3zQfxGv/qEkyGOx+XALVoOlZqDwh76o2n1vP1D+tD3amHsK7QIDAQAB AoGBAKH14bMitESqD4PYwODWmy7rrrvyFPEnJJTECLjvKB7IkrVxVDkp1XiJnGKH 2h5syHQ5qslPSGYJ1M/XkDnGINwaLVHVD3BoKKgKg1bZn7ao5pXT+herqxaVwWs6 ga63yVSIC8jcODxiuvxJnUMQRLaqoF6aUb/2VWc2T5MDmxLhAkEA3pwGpvXgLiWL 3h7QLYZLrLrbFRuRN4CYl4UYaAKokkAvZly04Glle8ycgOc2DzL4eiL4l/+x/gaq deJU/cHLRQJBANOZY0mEoVkwhU4bScSdnfM6usQowYBEwHYYh/OTv1a3SqcCE1f+ qbAclCqeNiHajCcDmgYJ53LfIgyv0wCS54kCQAXaPkaHclRkQlAdqUV5IWYyJ25f oiq+Y8SgCCs73qixrU1YpJy9yKA/meG9smsl4Oh9IOIGI+zUygh9YdSmEq0CQQC2 4G3IP2G3lNDRdZIm5NZ7PfnmyRabxk/UgVUWdk47IwTZHFkdhxKfC8QepUhBsAHL QjifGXY4eJKUBm3FpDGJAkAFwUxYssiJjvrHwnHFbg0rFkvvY63OSmnRxiL4X6EY yI9lblCsyfpl25l7l5zmJrAHn45zAiOoBrWqpM5edu7c -----END RSA PRIVATE KEY-----'; //公钥 $public_key = '-----BEGIN PUBLIC KEY----- MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC3//sR2tXw0wrC2DySx8vNGlqt 3Y7ldU9+LBLI6e1KS5lfc5jlTGF7KBTSkCHBM3ouEHWqp1ZJ85iJe59aF5gIB2kl Bd6h4wrbbHA2XE1sq21ykja/Gqx7/IRia3zQfxGv/qEkyGOx+XALVoOlZqDwh76o 2n1vP1D+tD3amHsK7QIDAQAB -----END PUBLIC KEY-----'; $pi_key = openssl_pkey_get_private($private_key);//这个函数可用来判断私钥是否是可用的,可用返回资源id Resource id $pu_key = openssl_pkey_get_public($public_key);//这个函数可用来判断公钥是否是可用的 print_r($pi_key);echo "<br>"; print_r($pu_key);echo "<br>"; $data = "aassssasssddd";//原始数据 $encrypted = ""; $decrypted = ""; echo "source data:".$data."<br>"; echo "private key encrypt:<br>"; openssl_private_encrypt($data,$encrypted,$pi_key);//私钥加密 //加密后的内容通常含有特殊字符,需要编码转换下,在网络间通过url传输时要注意base64编码是否是url安全的 $encrypted = base64_encode($encrypted); echo $encrypted."<br>"; echo "public key decrypt: "; openssl_public_decrypt(base64_decode($encrypted),$decrypted,$pu_key);//私钥加密的内容通过公钥可用解密出来 echo $decrypted."<br>"; echo "---------------------------------------<br>"; echo "public key encrypt:<br>"; openssl_public_encrypt($data,$encrypted,$pu_key);//公钥加密 $encrypted = base64_encode($encrypted); echo $encrypted."<br>"; echo "private key decrypt:<br>"; openssl_private_decrypt(base64_decode($encrypted),$decrypted,$pi_key);//私钥解密 echo $decrypted."<br>";