php - 从 rsa 私钥中删除密码

Question

这是我如何使用 phpseclib （有效）：

<?php
include('Crypt/RSA.php');

$rsa = new Crypt_RSA();
$rsa->setPassword('password');
$result = $rsa->loadKey('-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: DES-EDE3-CBC,E3B1C06E0D0C2633

gvmXzl6W7eV1a3N5rQNwBWKY9on3IgxZudS33cip5f88FotsPSDJMvqj6LVw2RxobDjhlOOzqmTb
VrlTnoQ6CogXFZSfiPmixiyyptCUEKJkSiEhYGM5GQm0OoGcLeLbgBb9tRpWh5IlXulKD6XFhx8q
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O7URxnVnHLltaFvIxshqyZu92xbUYZR7YzjXl5+3w4TVgeAHUogEV+H9iZTosD/copUsbQO+78w2
E1D3iDS94wRgx0Tjv4xlwrTpOV38FS5rdL32492DcCRlCYM4VtuwjYeWi5shJg69jCb0EwGRqfAo
xko+lbKWELTuFKwD7n1rc/2fTarbGuf8S2AEggBLZyfXHC/9N84mXLFO2XKq+0WdiEFhQj2Cze+a
9qcSK6tPSrjK1LPlnOOppFgDElZaZ0rxsgjtiWSIAEw/Ad+SIM5u+vqwzF8J317JlsdKoBFDw8mS
MxCMuMksKJ23mgvY+THRIVgH3E7lEDZQzCi1Uy6ldLJcran/6wHwP88pVM2odiHkpnrJGcEBbbIk
qsxJZhFT8aUt/cUEBj3fnP7cxoNLQfTHMPqUTqKBWaVufFzGU9YB1R+XWFULLddwJHnV7gPheBlk
MDapowb+Is77+a9Y2VDsOXEvNpqTY0giiSrckG05IZnrhJ24JnSCwyNd99lm7XKdEGGrjBCMqIyI
Fqox8Ahkv3KWAJPYK1eOCc5d/KwZHlnlFJq7ZYy9u3fEnxQCjOEmeXLkLangKA==
-----END RSA PRIVATE KEY-----');

echo $result ? 'true' : 'false';
?>

但是，出于比较目的，我正在尝试使用 OpenSSL 来进行。这是我的代码：

<?php
$pkey = openssl_pkey_get_private('-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: DES-EDE3-CBC,E3B1C06E0D0C2633
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==
-----END RSA PRIVATE KEY-----', 'password');
if ($pkey === false) exit('FAILURE');
openssl_pkey_export($pkey, $out_key_file);
echo $out_key_file;
?>

唯一的问题：代码过早地死掉，回显失败。IE。openssl_pkey_get_private() 没有加载密钥。openssl_error_string 说“错误：0906D066：PEM 例程：PEM_read_bio:bad end line”。

有任何想法吗？

Answer 1

我不确定这里发生了什么；我试过你的代码，它给出了同样的问题，所以我自己生成了一个密钥：

openssl genrsa -des3 -out des3.rsa

然后将内容复制到此脚本中：

$out_key_file = 'des3nopass.rsa';

$key = <<<EOS
-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: DES-EDE3-CBC,5F2FDB4C8F710F92

pkaBIMCdnvrejw6egagg/lGrrGJWLsceDkC0KSdouRfR8LhQS/XjSJ/Wqrj7fa36
xXRd/USBebgy2hLAi9RMPofOjlcUyUVvZZgh0+JDQ79pH5q1FsRMcsJ+J8GO0edw
kh8zdZoCbbtJgQjTx0JheJMDdZymw4cfK5hoZbnxX6HZ1wNhtPb7Z/noNcxpK6Zl
CCzPgLd9hCGLBD2XqoRjOM1U2vpZwpCTdYgAtFIPMVXQQpzgIyw06CHcHvYZgnAc
oxiVx7Z7N9r0J1vDnlrW/OU1l07D0pBr1yPRTDMI5tBMo8KDsL2tkBxqtYyOJdZr
as/5zQDPRlbW7Jve1JuXmsnja+gN7jZ+3LpUzfRFo/wWnvOzhHQxLz+RaUpVDYTl
F4m9zjo9dgOhlZzigOhYTB+5aq5f92Yf6K0daCwTDpU=
-----END RSA PRIVATE KEY-----
EOS;

$pkey = openssl_pkey_get_private($key, 'password');
if ($pkey === false) {
        die(openssl_error_string());
}

openssl_pkey_export($pkey, $out_key_file);
echo "Wrote to $out_key_file\n";

这对我来说很好。

更新

我也尝试使用openssl命令行执行此操作，使用您的密钥：

openssl rsa -in des3big.rsa -out des3bignopass.rsa
unable to load Private Key
14179:error:0906D066:PEM routines:PEM_read_bio:bad end line:pem_lib.c:746:

OpenSSL 似乎也有问题，所以它不是 PHP。

更新 2

原来你的行太长了（它们应该是 64 个字符宽）：

-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: DES-EDE3-CBC,E3B1C06E0D0C2633
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-----END RSA PRIVATE KEY-----

Answer 2

通过查看错误原因可能会找到更多信息：

if ($pkey === false) {
  echo openssl_error_string();
  exit('FAILURE');
}

编辑：鉴于错误“PEM_read_bio:bad end line”，这里是触发的 OpenSSL 源部分：

[...]
if ((strncmp(buf,"-----END ",9) != 0) ||
        (strncmp(nameB->data,&(buf[9]),i) != 0) ||
        (strncmp(&(buf[9+i]),"-----\n",6) != 0)) {

        PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_END_LINE);
        goto err;
        }
[...]

查看您的代码，我怀疑您需要在私钥字符串的末尾附加一个换行符。