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(PHP Extension) Generate RSA SSH KeySee more SSH Key ExamplesGenerates an RSA SSH key and saves to various public and private key file formats (OpenSSH and PuTTY).
<?php include("chilkat.php"); // Use "chilkat_9_5_0.php" for versions of Chilkat < 10.0.0 $key = new CkSshKey(); // numBits may range from 384 to 4096. Typical values are // 1024 or 2048. (must be a multiple of 64) // A good choice for the exponent is 65537. Chilkat recommends // always using this value. $numBits = 2048; $exponent = 65537; $success = $key->GenerateRsaKey($numBits,$exponent); if ($success != true) { print 'Bad params passed to RSA key generation method.' . "\n"; exit; } // Note: Generating a public/private key pair is CPU intensive // and may take a short amount of time (more than few seconds, // but less than a minute). // Export the RSA private key to OpenSSH, PuTTY, and XML and save. $exportEncrypted = false; $exportedKey = $key->toOpenSshPrivateKey($exportEncrypted); // Chilkat provides a SaveText method for convenience... $success = $key->SaveText($exportedKey,'privkey_openssh_unencrypted.pem'); // Export with encryption to OpenSSH private key format: $key->put_Password('secret'); $exportEncrypted = true; $exportedKey = $key->toOpenSshPrivateKey($exportEncrypted); $success = $key->SaveText($exportedKey,'privkey_openssh_encrypted.pem'); // Export the RSA private key to unencrypted PuTTY format: $exportEncrypted = false; $exportedKey = $key->toPuttyPrivateKey($exportEncrypted); $success = $key->SaveText($exportedKey,'privkey_putty_unencrypted.ppk'); // Export the RSA private key to encrypted PuTTY format: $key->put_Password('secret'); $exportEncrypted = true; $exportedKey = $key->toPuttyPrivateKey($exportEncrypted); $success = $key->SaveText($exportedKey,'privkey_putty_encrypted.ppk'); // Export private key to XML: $exportedKey = $key->toXml(); $success = $key->SaveText($exportedKey,'privkey.xml'); // ---------------------------------------------------- // Now for the public key.... // ---------------------------------------------------- // The Secure Shell (SSH) Public Key File Format // is documented in RFC 4716. $exportedKey = $key->toRfc4716PublicKey(); $success = $key->SaveText($exportedKey,'pubkey_rfc4716.pub'); // OpenSSH has a separate public-key file format, which // is also supported by Chilkat SshKey: $exportedKey = $key->toOpenSshPublicKey(); $success = $key->SaveText($exportedKey,'pubkey_openSsh.pub'); print 'Finished.' . "\n"; ?> |
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