我想从php生成ssh密钥对,有人可以指导我怎么做吗?我已经试过了shell_exec,但是shell提出了问题,因此该命令不起作用。我想指定文件名和生成密钥的路径。
这基于Converting an OpenSSL generated RSA public key to OpenSSH format (PHP)。谢谢shevron。
<?php
$rsaKey = openssl_pkey_new(array(
'private_key_bits' => 1024,
'private_key_type' => OPENSSL_KEYTYPE_RSA));
$privKey = openssl_pkey_get_private($rsaKey);
openssl_pkey_export($privKey, $pem); //Private Key
$pubKey = sshEncodePublicKey($rsaKey); //Public Key
$umask = umask(0066);
file_put_contents('/tmp/test.rsa', $pem); //save private key into file
file_put_contents('/tmp/test.rsa.pub', $pubKey); //save public key into file
print "Private Key:\n $pem \n\n";
echo "Public key:\n$pubKey\n\n";
function sshEncodePublicKey($privKey) {
$keyInfo = openssl_pkey_get_details($privKey);
$buffer = pack("N", 7) . "ssh-rsa" .
sshEncodeBuffer($keyInfo['rsa']['e']) .
sshEncodeBuffer($keyInfo['rsa']['n']);
return "ssh-rsa " . base64_encode($buffer);
}
function sshEncodeBuffer($buffer) {
$len = strlen($buffer);
if (ord($buffer[0]) & 0x80) {
$len++;
$buffer = "\x00" . $buffer;
}
return pack("Na*", $len, $buffer);
}
?>
我会使用phpseclib, a pure PHP RSA implementation:
<?php
include('Crypt/RSA.php');
$rsa = new Crypt_RSA();
$rsa->setPublicKeyFormat(CRYPT_RSA_PUBLIC_FORMAT_OPENSSH);
extract($rsa->createKey());
echo "$publickey\r\n\r\n$privatekey";
?>
样本输出:
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAAAgQCqGKukO1De7zhZj6+H0qtjTkVxwTCpvKe4eCZ0FPqri0cb2JZfXJ/DgYSF6vUpwmJG8wVQZKjeGcjDOL5UlsuusFncCzWBQ7RKNUSesmQRMSGkVb1/3j+skZ6UtW+5u09lHNsj6tQ51s1SPrCBkedbNf0Tp0GbMJDyR4e9T04ZZw== phpseclib-generated-key
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
来源:http://phpseclib.sourceforge.net/rsa/examples.html#openssh
有人尝试过吗?
ssh-keygen -q -N place_your_passphrase_here -t rsa -f ~/.ssh/id_rsa
对我有用
检查ssh-keygen
的联机帮助页以了解如何在没有任何提示的情况下执行它。