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<?php |
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/** |
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* Created by PhpStorm. |
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* User: arthur |
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* Date: 24/10/17 |
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* Time: 20:07 |
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*/ |
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namespace Modules\Script\Support; |
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class RsaGenerator |
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{ |
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private static $instance; |
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/** |
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* RsaGenerator constructor. |
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*/ |
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private function __construct() |
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{ |
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} |
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public static function generateKeyPair($keySize = 1024): RsaKeyPair |
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{ |
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if (self::$instance === null) |
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self::$instance = new RsaGenerator(); |
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return self::$instance->generate($keySize); |
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} |
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private function generate($keySize) |
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{ |
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$rsaKey = openssl_pkey_new(array( |
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'private_key_bits' => $keySize, |
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'private_key_type' => OPENSSL_KEYTYPE_RSA)); |
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$privKey = openssl_pkey_get_private($rsaKey); |
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openssl_pkey_export($privKey, $pem); //Private Key |
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$pubKey = $this->sshEncodePublicKey($rsaKey); //Public Key |
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$umask = umask(0066); |
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return new RsaKeyPair(str_replace(PHP_EOL, '', $pubKey), str_replace(PHP_EOL, '', $pem)); |
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} |
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private function sshEncodePublicKey($privKey) |
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{ |
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$keyInfo = openssl_pkey_get_details($privKey); |
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$buffer = pack("N", 7) . "ssh-rsa" . |
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$this->sshEncodeBuffer($keyInfo['rsa']['e']) . |
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$this->sshEncodeBuffer($keyInfo['rsa']['n']); |
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return "ssh-rsa " . base64_encode($buffer); |
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} |
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private function sshEncodeBuffer($buffer) |
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{ |
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$len = strlen($buffer); |
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if (ord($buffer[0]) & 0x80) { |
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$len++; |
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$buffer = "\x00" . $buffer; |
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} |
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return pack("Na*", $len, $buffer); |
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} |
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} |
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deviouspk /
larapi
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