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(PHP Extension) Generate DSA SSH KeyGenerates a DSA SSH key and saves to various public and private key file formats (OpenSSH and PuTTY).
<?php // The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number. // For example, if using Chilkat v9.5.0.48, then include as shown here: include("chilkat_9_5_0.php"); $key = new CkSshKey(); // numBits should be a minimum of 1024 and // a multiple of 64. Typical values are // 1024 or 2048. $numBits = 2048; $success = $key->GenerateDsaKey($numBits); if ($success != true) { print 'Invalid numBits passed to DSA 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 DSA 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 DSA private key to unencrypted PuTTY format: $exportEncrypted = false; $exportedKey = $key->toPuttyPrivateKey($exportEncrypted); $success = $key->SaveText($exportedKey,'privkey_putty_unencrypted.ppk'); // Export the DSA 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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