$rsa->encrypt() 我的 public 密钥有问题

Question

我正在尝试用 phpseclib 加密一些东西，但由于某些原因 encrypt() 函数没有 return 任何东西。

这是我现在的核心：

include('/pathto/Crypt/RSA.php');

$key = '-----BEGIN PUBLIC KEY-----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-----END PUBLIC KEY-----';

$rsa = new Crypt_RSA();
$rsa->loadKey($key);

$sometext = 'test this text';

echo $rsa->encrypt($sometext);

我下载了1.0版本

怎么了？

我挖得更深一点，发现 this issue 并将我的部分测试代码更改为：

if (!$rsa->encrypt($sometext)) {
    echo "false";
} else {
    echo $rsa->encrypt($sometext);
}

这证明我的密钥有问题。但是格式应该怎样呢？

Answer 1

您的 RSA public 密钥实际上是一个 X509 证书。它包含一个 public 键，但它本身并不是 public 键。通过这样做，我能够让您的代码示例正常工作：

<?php
include('File/X509.php');

$key = '-----BEGIN PUBLIC KEY-----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-----END PUBLIC KEY-----';

$x509 = new File_X509();
$x509->loadX509($key);
$rsa = $x509->getPublicKey();

$sometext = 'test this text';

echo $rsa->encrypt($sometext);

$rsa->encrypt() 我的 public 密钥有问题

$rsa->encrypt() has problems with my public key

php

rsa

rsa-key-fingerprint

phpseclib