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node_modules/sshpk/lib/fingerprint.js

@@ -1,220 +0,0 @@
-// Copyright 2018 Joyent, Inc.
-
-module.exports = Fingerprint;
-
-var assert = require('assert-plus');
-var Buffer = require('safer-buffer').Buffer;
-var algs = require('./algs');
-var crypto = require('crypto');
-var errs = require('./errors');
-var Key = require('./key');
-var PrivateKey = require('./private-key');
-var Certificate = require('./certificate');
-var utils = require('./utils');
-
-var FingerprintFormatError = errs.FingerprintFormatError;
-var InvalidAlgorithmError = errs.InvalidAlgorithmError;
-
-function Fingerprint(opts) {
-	assert.object(opts, 'options');
-	assert.string(opts.type, 'options.type');
-	assert.buffer(opts.hash, 'options.hash');
-	assert.string(opts.algorithm, 'options.algorithm');
-
-	this.algorithm = opts.algorithm.toLowerCase();
-	if (algs.hashAlgs[this.algorithm] !== true)
-		throw (new InvalidAlgorithmError(this.algorithm));
-
-	this.hash = opts.hash;
-	this.type = opts.type;
-	this.hashType = opts.hashType;
-}
-
-Fingerprint.prototype.toString = function (format) {
-	if (format === undefined) {
-		if (this.algorithm === 'md5' || this.hashType === 'spki')
-			format = 'hex';
-		else
-			format = 'base64';
-	}
-	assert.string(format);
-
-	switch (format) {
-	case 'hex':
-		if (this.hashType === 'spki')
-			return (this.hash.toString('hex'));
-		return (addColons(this.hash.toString('hex')));
-	case 'base64':
-		if (this.hashType === 'spki')
-			return (this.hash.toString('base64'));
-		return (sshBase64Format(this.algorithm,
-		    this.hash.toString('base64')));
-	default:
-		throw (new FingerprintFormatError(undefined, format));
-	}
-};
-
-Fingerprint.prototype.matches = function (other) {
-	assert.object(other, 'key or certificate');
-	if (this.type === 'key' && this.hashType !== 'ssh') {
-		utils.assertCompatible(other, Key, [1, 7], 'key with spki');
-		if (PrivateKey.isPrivateKey(other)) {
-			utils.assertCompatible(other, PrivateKey, [1, 6],
-			    'privatekey with spki support');
-		}
-	} else if (this.type === 'key') {
-		utils.assertCompatible(other, Key, [1, 0], 'key');
-	} else {
-		utils.assertCompatible(other, Certificate, [1, 0],
-		    'certificate');
-	}
-
-	var theirHash = other.hash(this.algorithm, this.hashType);
-	var theirHash2 = crypto.createHash(this.algorithm).
-	    update(theirHash).digest('base64');
-
-	if (this.hash2 === undefined)
-		this.hash2 = crypto.createHash(this.algorithm).
-		    update(this.hash).digest('base64');
-
-	return (this.hash2 === theirHash2);
-};
-
-/*JSSTYLED*/
-var base64RE = /^[A-Za-z0-9+\/=]+$/;
-/*JSSTYLED*/
-var hexRE = /^[a-fA-F0-9]+$/;
-
-Fingerprint.parse = function (fp, options) {
-	assert.string(fp, 'fingerprint');
-
-	var alg, hash, enAlgs;
-	if (Array.isArray(options)) {
-		enAlgs = options;
-		options = {};
-	}
-	assert.optionalObject(options, 'options');
-	if (options === undefined)
-		options = {};
-	if (options.enAlgs !== undefined)
-		enAlgs = options.enAlgs;
-	if (options.algorithms !== undefined)
-		enAlgs = options.algorithms;
-	assert.optionalArrayOfString(enAlgs, 'algorithms');
-
-	var hashType = 'ssh';
-	if (options.hashType !== undefined)
-		hashType = options.hashType;
-	assert.string(hashType, 'options.hashType');
-
-	var parts = fp.split(':');
-	if (parts.length == 2) {
-		alg = parts[0].toLowerCase();
-		if (!base64RE.test(parts[1]))
-			throw (new FingerprintFormatError(fp));
-		try {
-			hash = Buffer.from(parts[1], 'base64');
-		} catch (e) {
-			throw (new FingerprintFormatError(fp));
-		}
-	} else if (parts.length > 2) {
-		alg = 'md5';
-		if (parts[0].toLowerCase() === 'md5')
-			parts = parts.slice(1);
-		parts = parts.map(function (p) {
-			while (p.length < 2)
-				p = '0' + p;
-			if (p.length > 2)
-				throw (new FingerprintFormatError(fp));
-			return (p);
-		});
-		parts = parts.join('');
-		if (!hexRE.test(parts) || parts.length % 2 !== 0)
-			throw (new FingerprintFormatError(fp));
-		try {
-			hash = Buffer.from(parts, 'hex');
-		} catch (e) {
-			throw (new FingerprintFormatError(fp));
-		}
-	} else {
-		if (hexRE.test(fp)) {
-			hash = Buffer.from(fp, 'hex');
-		} else if (base64RE.test(fp)) {
-			hash = Buffer.from(fp, 'base64');
-		} else {
-			throw (new FingerprintFormatError(fp));
-		}
-
-		switch (hash.length) {
-		case 32:
-			alg = 'sha256';
-			break;
-		case 16:
-			alg = 'md5';
-			break;
-		case 20:
-			alg = 'sha1';
-			break;
-		case 64:
-			alg = 'sha512';
-			break;
-		default:
-			throw (new FingerprintFormatError(fp));
-		}
-
-		/* Plain hex/base64: guess it's probably SPKI unless told. */
-		if (options.hashType === undefined)
-			hashType = 'spki';
-	}
-
-	if (alg === undefined)
-		throw (new FingerprintFormatError(fp));
-
-	if (algs.hashAlgs[alg] === undefined)
-		throw (new InvalidAlgorithmError(alg));
-
-	if (enAlgs !== undefined) {
-		enAlgs = enAlgs.map(function (a) { return a.toLowerCase(); });
-		if (enAlgs.indexOf(alg) === -1)
-			throw (new InvalidAlgorithmError(alg));
-	}
-
-	return (new Fingerprint({
-		algorithm: alg,
-		hash: hash,
-		type: options.type || 'key',
-		hashType: hashType
-	}));
-};
-
-function addColons(s) {
-	/*JSSTYLED*/
-	return (s.replace(/(.{2})(?=.)/g, '$1:'));
-}
-
-function base64Strip(s) {
-	/*JSSTYLED*/
-	return (s.replace(/=*$/, ''));
-}
-
-function sshBase64Format(alg, h) {
-	return (alg.toUpperCase() + ':' + base64Strip(h));
-}
-
-Fingerprint.isFingerprint = function (obj, ver) {
-	return (utils.isCompatible(obj, Fingerprint, ver));
-};
-
-/*
- * API versions for Fingerprint:
- * [1,0] -- initial ver
- * [1,1] -- first tagged ver
- * [1,2] -- hashType and spki support
- */
-Fingerprint.prototype._sshpkApiVersion = [1, 2];
-
-Fingerprint._oldVersionDetect = function (obj) {
-	assert.func(obj.toString);
-	assert.func(obj.matches);
-	return ([1, 0]);
-};