这是rsa_private_key.pem
-----BEGIN PRIVATE KEY----- MIIEvAIBADANBgkqhkiG9w0BAQEFAASCBKYwggSiAgEAAoIBAQCxsv3yAPRvIn2z
j5zZcFCA6qnFUVjyRDNbQA2ni1vcnTlSjP9i0FNJgpZkRaDZ0PprH8t10mXnWtVd 9ZujztmHYWqETgGMGkq9fOou2/naFDXXUvtz2uhcUKCUYQUNXzfJPidfjmXe01OH eY8iN1X+GFo4LhumXgFIYsfBY8SKjeXgdiTl1Jhk+m+e27qRg0tD/kBVQ5vFmZmS
8g1QWU8RCAYi3N1UicVucLmjg3ORXkZ2jMB7DTQET8i2loGbTqpYzV5d3Ka0D8BS S7SBAdaipzU4RugaqveOAd2vCXfDtf9VWvdHPTN1OxEsYaJaKAZTYt/pK61wQ0BN 7dJUfSBTAgMBAAECggEAGRNJAn1gAM69Ljl1yLkwowB6NH3mL0mwdY/0XVAtBlSp
YhzDbQ44soba8gthR1tV+wfhjh7CgoMu2LNv4w2tZI06mrDnRv3uzg5yfWpNN5ji gCAVm6OoZl56SnXmYJyvIpbCt5lAhtELWHKu4AUu/UwybvsSq8dYJv7JcWDCu0pO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 GzmOFISJeQKBgD+rmmhNT8fQKZRQMJZ24uW9IN5/iBeX/n1OdnQTpYBvmhSCXAqn
g/8ricFQo0wVpGem2nAs7F3afXJg6g5vUmIIvZPFdZb4kHUc9rRnSUS24wkiPF39 1mvv1VnM+N0gwgVbl4B6vgTuyUkMu86V2fY4OwsAZj7ttqzMn+C05qq/AoGAaFy8
iZWP+93SBJph50nYS49JHkAwA3FJoTxhe6b4WlEijhZt16E3VGOhF8L8T12gWKdl
Pd29mbyIRobQxMaMK1mzqGdjV5bP373KZyInU8CywXdjt2n5yN7WMb8Cb+c3yvmw
90XKSgUzRUg/23BdenIGLI3EJBc3coDzLWTtlskCgYAEpYvVasV6Xy42zJyIxUeJ
Jqbjm+MQkGU7Q+yLa6+1Ylt51sqIS8Mf8lp4PYYN7GpcFYKVfHIXCZDru1IyfQut
OSWR0pAsgQn7haMRVRjGvzjfinLy+K1llPkpafYj7rWu+z50sIr2bnuGZAGgqVt8 9H+p1jGHtXrt2SWVAIpyWQ== -----END PRIVATE KEY-----
这是rsa_public_key.pem
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsbL98gD0byJ9s4+c2XBQ gOqpxVFY8kQzW0ANp4tb3J05Uoz/YtBTSYKWZEWg2dD6ax/LddJl51rVXfWbo87Z
h2FqhE4BjBpKvXzqLtv52hQ111L7c9roXFCglGEFDV83yT4nX45l3tNTh3mPIjdV /hhaOC4bpl4BSGLHwWPEio3l4HYk5dSYZPpvntu6kYNLQ/5AVUObxZmZkvINUFlP EQgGItzdVInFbnC5o4NzkV5GdozAew00BE/ItpaBm06qWM1eXdymtA/AUku0gQHW oqc1OEboGqr3jgHdrwl3w7X/VVr3Rz0zdTsRLGGiWigGU2Lf6SutcENATe3SVH0g UwIDAQAB -----END PUBLIC KEY-----
下面只需要加载即可
<?php #author:zk #data:2017-09-11 #note:php rsa secret $public_key = file_get_contents('./rsa_public_key.pem'); $private_key = file_get_contents('./rsa_private_key.pem'); //这个函数可用来判断私钥是否是可用的 $private_key = openssl_pkey_get_private($private_key); //这个函数可用来判断公钥是否是可用的 $public_key = openssl_pkey_get_public($public_key); //要加密的数据 $data = "这是测试"; echo '加密的数据：'.$data.'<br>'; //私钥加密后的数据 openssl_private_encrypt($data,$encrypted,$private_key); //加密后的内容通常含有特殊字符，需要base64编码转换下 $encrypted = base64_encode($encrypted); echo "私钥加密后的数据:".$encrypted.'<br>'; //公钥解密 openssl_public_decrypt(base64_decode($encrypted), $decrypted, $public_key); echo "公钥解密后的数据:".$decrypted.'<br>'; //----相反操作。公钥加密 openssl_public_encrypt($data, $encrypted, $public_key); $encrypted = base64_encode($encrypted); echo "公钥加密后的数据:".$encrypted.'<br>'; openssl_private_decrypt(base64_decode($encrypted), $decrypted, $private_key);//私钥解密 echo "私钥解密后的数据:".$decrypted.'<br>';