后端开发|php教程
php,实例,公钥
后端开发-php教程php 生成加密公钥加密私钥实例详解
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生成公钥私钥win下必须要openssl.cof支持 liunx一般已自带安装
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$config = array( //"digest_alg" => "sha512", "private_key_bits" => 512, //字节数 512 1024 2048 4096 等 "private_key_type" => OPENSSL_KEYTYPE_RSA, //加密类型 ); //1.创建公钥和私钥 返回资源 $res = openssl_pkey_new($config); //从得到的资源中获取私钥 并把私钥赋给$privKeyopenssl_pkey_export($res, $privKey); //从得到的资源中获取私钥 并把私钥赋给$pubKey$pubKey = openssl_pkey_get_details($res); $pubKey = $pubKey["key"]; var_dump(array(privKey=>$privKey,pubKey=>$pubKey)); die; //2.加密解密数据 要加密的数据 $data = plaintext data goes here; //对$data进行加密 要加密的数据字符串 得到加密后的数据 加密所需要的公钥openssl_public_encrypt($data, $encrypted, $pubKey); echo base64_encode($encrypted); //对加密后的数据进行解密 解密的数据 得到解密后的数据 解密所需要的私钥$decrypted = base64_decode($encrypted);openssl_private_decrypt($encrypted, $decrypted, $privKey); echo $decrypted; //3.一个加密解密类 class rsa { private $public_key = \; //公密钥 private $private_key = \; //私密钥 private $public_key_resource = \; //公密钥资源 private $private_key_resource = \; //私密钥资源 /** * 架构函数 * @param [string] $public_key_file [公密钥文件地址] * @param [string] $private_key_file [私密钥文件地址] */ public function construct($public_key,$private_key) {$this->public_key = $public_key; $this->private_key = $private_key; if(false == ($this->public_key_resource = $this->is_bad_public_key($this->public_key)) || false == ($this->private_key_resource = $this->is_bad_private_key($this->private_key))) { throw new Exception(public key or private key no usable); } } private function is_bad_public_key($public_key) {return openssl_pkey_get_public($public_key); } private function is_bad_private_key($private_key) {return openssl_pkey_get_private($private_key); } /** * 生成一对公私密钥 成功返回 公私密钥数组 失败 返回 false */ public function create_key() {$res = openssl_pkey_new();if($res == false) return false;openssl_pkey_export($res, $private_key);$public_key = openssl_pkey_get_details($res);return array(public_key=>$public_key["key"],private_key=>$private_key); } /** * 用私密钥加密 */ public function private_encrypt($input) {openssl_private_encrypt($input,$output,$this->private_key_resource);return base64_encode($output); } /** * 解密 私密钥加密后的密文 */ public function public_decrypt($input) {openssl_public_decrypt(base64_decode($input),$output,$this->public_key_resource);return $output; } /** * 用公密钥加密 */ public function public_encrypt($input) {openssl_public_encrypt($input,$output,$this->public_key_resource);return base64_encode($output); } /** * 解密 公密钥加密后的密文 */ public function private_decrypt($input) {openssl_private_decrypt(base64_decode($input),$output,$this->private_key_resource);return $output; } } $private_key = -----BEGIN RSA PRIVATE KEY----- MIICXQIBAAKBgQC3//sR2tXw0wrC2DySx8vNGlqt3Y7ldU9+LBLI6e1KS5lfc5jl TGF7KBTSkCHBM3ouEHWqp1ZJ85iJe59aF5gIB2klBd6h4wrbbHA2XE1sq21ykja/ Gqx7/IRia3zQfxGv/qEkyGOx+XALVoOlZqDwh76o2n1vP1D+tD3amHsK7QIDAQAB AoGBAKH14bMitESqD4PYwODWmy7rrrvyFPEnJJTECLjvKB7IkrVxVDkp1XiJnGKH 2h5syHQ5qslPSGYJ1M/XkDnGINwaLVHVD3BoKKgKg1bZn7ao5pXT+herqxaVwWs6 ga63yVSIC8jcODxiuvxJnUMQRLaqoF6aUb/2VWc2T5MDmxLhAkEA3pwGpvXgLiWL 3h7QLYZLrLrbFRuRN4CYl4UYaAKokkAvZly04Glle8ycgOc2DzL4eiL4l/+x/gaq deJU/cHLRQJBANOZY0mEoVkwhU4bScSdnfM6usQowYBEwHYYh/OTv1a3SqcCE1f+ qbAclCqeNiHajCcDmgYJ53LfIgyv0wCS54kCQAXaPkaHclRkQlAdqUV5IWYyJ25f oiq+Y8SgCCs73qixrU1YpJy9yKA/meG9smsl4Oh9IOIGI+zUygh9YdSmEq0CQQC2 4G3IP2G3lNDRdZIm5NZ7PfnmyRabxk/UgVUWdk47IwTZHFkdhxKfC8QepUhBsAHL QjifGXY4eJKUBm3FpDGJAkAFwUxYssiJjvrHwnHFbg0rFkvvY63OSmnRxiL4X6EY yI9lblCsyfpl25l7l5zmJrAHn45zAiOoBrWqpM5edu7c -----END RSA PRIVATE KEY-----;$public_key = -----BEGIN PUBLIC KEY----- MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC3//sR2tXw0wrC2DySx8vNGlqt 3Y7ldU9+LBLI6e1KS5lfc5jlTGF7KBTSkCHBM3ouEHWqp1ZJ85iJe59aF5gIB2kl Bd6h4wrbbHA2XE1sq21ykja/Gqx7/IRia3zQfxGv/qEkyGOx+XALVoOlZqDwh76o 2n1vP1D+tD3amHsK7QIDAQAB -----END PUBLIC KEY-----;$rsa = new rsa($public_key,$private_key); $str = 加密解密; $str = $rsa->public_encrypt($str); //用公密钥加密 echo $str,\; $str = $rsa->private_decrypt($str); //用私密钥解密 echo $str,\; //============================================================= $str = $rsa->private_encrypt($str); //用私密钥加密 echo $str,\; $str = $rsa->public_decrypt($str); //用公密钥解密 echo $str,\;
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