JezK
Edit File: sshpk-verify
#!/usr/bin/env node // -*- mode: js -*- // vim: set filetype=javascript : // Copyright 2015 Joyent, Inc. All rights reserved. var dashdash = require('dashdash'); var sshpk = require('../lib/index'); var fs = require('fs'); var path = require('path'); var Buffer = require('safer-buffer').Buffer; var options = [ { names: ['hash', 'H'], type: 'string', help: 'Hash algorithm (sha1, sha256, sha384, sha512)' }, { names: ['verbose', 'v'], type: 'bool', help: 'Display verbose info about key and hash used' }, { names: ['identity', 'i'], type: 'string', help: 'Path to (public) key to use' }, { names: ['file', 'f'], type: 'string', help: 'Input filename' }, { names: ['format', 't'], type: 'string', help: 'Signature format (asn1, ssh, raw)' }, { names: ['signature', 's'], type: 'string', help: 'base64-encoded signature data' }, { names: ['help', 'h'], type: 'bool', help: 'Shows this help text' } ]; if (require.main === module) { var parser = dashdash.createParser({ options: options }); try { var opts = parser.parse(process.argv); } catch (e) { console.error('sshpk-verify: error: %s', e.message); process.exit(3); } if (opts.help || opts._args.length > 1) { var help = parser.help({}).trimRight(); console.error('sshpk-verify: sign data using an SSH key\n'); console.error(help); process.exit(3); } if (!opts.identity) { var help = parser.help({}).trimRight(); console.error('sshpk-verify: the -i or --identity option ' + 'is required\n'); console.error(help); process.exit(3); } if (!opts.signature) { var help = parser.help({}).trimRight(); console.error('sshpk-verify: the -s or --signature option ' + 'is required\n'); console.error(help); process.exit(3); } var keyData = fs.readFileSync(opts.identity); var key; try { key = sshpk.parseKey(keyData); } catch (e) { console.error('sshpk-verify: error loading key "' + opts.identity + '": ' + e.name + ': ' + e.message); process.exit(2); } var fmt = opts.format || 'asn1'; var sigData = Buffer.from(opts.signature, 'base64'); var sig; try { sig = sshpk.parseSignature(sigData, key.type, fmt); } catch (e) { console.error('sshpk-verify: error parsing signature: ' + e.name + ': ' + e.message); process.exit(2); } var hash = opts.hash || key.defaultHashAlgorithm(); var verifier; try { verifier = key.createVerify(hash); } catch (e) { console.error('sshpk-verify: error creating verifier: ' + e.name + ': ' + e.message); process.exit(2); } if (opts.verbose) { console.error('sshpk-verify: using %s-%s with a %d bit key', key.type, hash, key.size); } var inFile = process.stdin; var inFileName = 'stdin'; var inFilePath; if (opts.file) { inFilePath = opts.file; } else if (opts._args.length === 1) { inFilePath = opts._args[0]; } if (inFilePath) inFileName = path.basename(inFilePath); try { if (inFilePath) { fs.accessSync(inFilePath, fs.R_OK); inFile = fs.createReadStream(inFilePath); } } catch (e) { console.error('sshpk-verify: error opening input file' + ': ' + e.name + ': ' + e.message); process.exit(2); } inFile.pipe(verifier); inFile.on('end', function () { var ret; try { ret = verifier.verify(sig); } catch (e) { console.error('sshpk-verify: error verifying data: ' + e.name + ': ' + e.message); process.exit(1); } if (ret) { console.error('OK'); process.exit(0); } console.error('NOT OK'); process.exit(1); }); }