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php生成公钥私钥对

关键词: php

php生成公钥私钥对

```
<?php
$config = [
    'digest_alg' => 'sha512',
    'private_key_bits' => 512,
    'private_key_type' => OPENSSL_KEYTYPE_RSA
];
/*根据配置得到资源*/
$resource = openssl_pkey_new($config);
/*导出私钥的内容存到变量$privateKey*/
openssl_pkey_export($resource, $privateKey);
/*导出公钥的内容存到变量$publicKey*/
$publicKey = openssl_pkey_get_details($resource)['key'];
/*
私钥大概是这样的
-----BEGIN PRIVATE KEY-----
MIIBVQIBADANBgkqhkiG9w0BAQEFAASCAT8wggE7AgEAAkEAvlE7DPWCLi5kO72B
n8hcbTxIPTgolBCqDi0xAmGrShgiU6dq5YNpe1SwlhUdgOKct7CrlP3fkMcwdq09
AQ11tQIDAQABAkEArqxzXCOAxc4CZOo7rGECo6duTfHbHHpm+ff0QVFPGwKRw9IE
ub2MaZn2ZBWQ4QB0ECblmCdwicffbPHSKWFWgQIhAOk+CCZ1yQkj5VDzs7IOGZn/
ZKepTY5Fho88PZ/rtulxAiEA0OMCqQY+2UjPS8IqLCIguQl46LHT8jEtpI2RYn1i
DoUCIEN4bEcj32nDdnx6YsrpBULk/Cr78LFtL0WT+YefWiQhAiBgtZlXtAKJCsKe
qohn4m0P/iiyYxJjgQ1GsBxtYutxGQIhANU79Zo/s3w7EXLyZ0ee1avQAxxmuyLN
jRq3L7IsZJ+M
-----END PRIVATE KEY-----
公钥大概是这样的
-----BEGIN PUBLIC KEY-----
MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAL5ROwz1gi4uZDu9gZ/IXG08SD04KJQQ
qg4tMQJhq0oYIlOnauWDaXtUsJYVHYDinLewq5T935DHMHatPQENdbUCAwEAAQ==
-----END PUBLIC KEY-----
*/
/*将一个字符串用公钥加密*/
$data = 'I love china';
openssl_public_encrypt($data, $encrypted, $publicKey);
/*将加密的内容用私钥解密*/
openssl_private_decrypt($encrypted, $decrypted, $privateKey);
/*输出解密后的内容*/
echo $decrypted;
?>
```

admin
2019-09-12 15:22:29
php

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php生成公钥私钥对