23295342fc
work correctly with utf8 strings. Fixeda visibility issue with the testing suite and added relevant unit tests.
318 lines
15 KiB
HTML
318 lines
15 KiB
HTML
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<title>JSDoc: Source: openpgp.msg.publickey.js</title>
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<h1 class="page-title">Source: openpgp.msg.publickey.js</h1>
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<pre class="prettyprint source"><code>// GPG4Browsers - An OpenPGP implementation in javascript
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// Copyright (C) 2011 Recurity Labs GmbH
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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/**
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* @class
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* @classdesc Decoded public key object for internal openpgp.js use
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*/
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function openpgp_msg_publickey() {
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this.data;
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this.position;
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this.len;
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this.tostring = "OPENPGP PUBLIC KEY\n";
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this.bindingSignature = null;
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this.publicKeyPacket = null;
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this.userIds = new Array();
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this.userAttributes = new Array();
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this.revocationSignatures = new Array();
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this.subKeys = new Array();
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this.arbitraryPacket = new Array();
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this.directSignatures = new Array();
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/**
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*
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* @return last position
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*/
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function read_nodes(parent_node, input, position, len) {
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this.publicKeyPacket = parent_node;
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var exit = false;
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var pos = position;
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var l = len;
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while (input.length != pos) {
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var result = openpgp_packet.read_packet(input, pos, input.length - pos);
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if (result == null) {
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util.print_error("openpgp.msg.publickey read_nodes:\n"+'[pub_key]parsing ends here @:' + pos + " l:" + l);
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break;
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} else {
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switch (result.tagType) {
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case 2: // public key revocation signature
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if (result.signatureType == 32)
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this.revocationSignatures[this.revocationSignatures.length] = result;
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else if (result.signatureType == 16 || result.signatureType == 17 || result.signatureType == 18 || result.signatureType == 19)
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this.certificationSignature = result;
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else if (result.signatureType == 25) {
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this.bindingSignature = result;
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} else if (result.signatureType == 31) {
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this.directSignatures[this.directSignatures.length] = result;
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} else
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util.print_error("openpgp.msg.publickey read_nodes:\n"+"unknown signature type directly on key "+result.signatureType);
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pos += result.packetLength + result.headerLength;
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break;
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case 14: // Public-Subkey Packet
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this.subKeys[this.subKeys.length] = result;
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pos += result.packetLength + result.headerLength;
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pos += result.read_nodes(this.publicKeyPacket,input, pos, input.length - pos);
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break;
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case 17: // User Attribute Packet
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this.userAttributes[this.userAttributes.length] = result;
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pos += result.packetLength + result.headerLength;
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pos += result.read_nodes(this.publicKeyPacket,input, pos, input.length - pos);
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break;
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case 13: // User ID Packet
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this.userIds[this.userIds.length] = result;
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pos += result.packetLength + result.headerLength;
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pos += result.read_nodes(this.publicKeyPacket, input, pos, input.length - pos);
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break;
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default:
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this.data = input;
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this.position = position - this.publicKeyPacket.packetLength - this.publicKeyPacket.headerLength;
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this.len = pos - position;
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return this.len;
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}
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}
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}
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this.data = input;
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this.position = position - (this.publicKeyPacket.packetLength - this.publicKeyPacket.headerLength);
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this.len = pos - position;
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return this.len;
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}
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function write() {
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}
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function getKeyId() {
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return this.publicKeyPacket.getKeyId();
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}
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function getFingerprint() {
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return this.publicKeyPacket.getFingerprint();
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}
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function validate() {
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// check revocation keys
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for (var i = 0; i < this.revocationSignatures.length; i++) {
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var tohash = this.publicKeyPacket.header+this.publicKeyPacket.data;
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if (this.revocationSignatures[i].verify(tohash, this.publicKeyPacket))
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return false;
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}
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if (this.subKeys.length != 0) {
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// search for a valid subkey
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var found = false;
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for (var i = 0; i < this.subKeys.length; i++)
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if (this.subKeys[i].verifyKey() == 3) {
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found = true;
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break;
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}
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if (!found)
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return false;
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}
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// search for one valid userid
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found = false;
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for (var i = 0; i < this.userIds.length; i++)
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if (this.userIds[i].verify(this.publicKeyPacket) == 0) {
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found = true;
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break;
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}
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if (!found)
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return false;
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return true;
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}
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/**
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* verifies all signatures
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* @return a 2 dimensional array. the first dimension corresponds to the userids available
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*/
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function verifyCertificationSignatures() {
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var result = new Array();
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for (var i = 0; i < this.userIds.length; i++) {
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result[i] = this.userIds[i].verifyCertificationSignatures(this.publicKeyPacket);
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}
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return result;
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}
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this.verifyCertificationSignatures = verifyCertificationSignatures;
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/**
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* verifies:
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* - revocation certificates directly on key
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* - self signatures
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* - subkey binding and revocation certificates
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*
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* This is useful for validating the key
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* @returns {Boolean} true if the basic signatures are all valid
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*/
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function verifyBasicSignatures() {
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for (var i = 0; i < this.revocationSignatures.length; i++) {
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var tohash = this.publicKeyPacket.header+this.publicKeyPacket.data;
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if (this.revocationSignatures[i].verify(tohash, this.publicKeyPacket))
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return false;
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}
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if (this.subKeys.length != 0) {
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// search for a valid subkey
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var found = false;
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for (var i = 0; i < this.subKeys.length; i++) {
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if (this.subKeys[i] == null)
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continue;
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var result = this.subKeys[i].verifyKey();
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if (result == 3) {
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found = true;
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break;
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}
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}
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if (!found)
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return false;
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}
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var keyId = this.getKeyId();
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for (var i = 0; i < this.userIds.length; i++) {
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for (var j = 0; j < this.userIds[i].certificationRevocationSignatures.length; j++) {
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if (this.userIds[i].certificationSignatures[j].getIssuer == keyId &&
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this.userIds[i].certificationSignatures[j].verifyBasic(this.publicKeyPacket) != 4)
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return false;
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}
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}
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return true;
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}
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function toString() {
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var result = " OPENPGP Public Key\n length: "+this.len+"\n";
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result += " Revocation Signatures:\n"
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for (var i=0; i < this.revocationSignatures.length; i++) {
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result += " "+this.revocationSignatures[i].toString();
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}
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result += " User Ids:\n";
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for (var i=0; i < this.userIds.length; i++) {
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result += " "+this.userIds[i].toString();
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}
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result += " User Attributes:\n";
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for (var i=0; i < this.userAttributes.length; i++) {
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result += " "+this.userAttributes[i].toString();
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}
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result += " Public Key SubKeys:\n";
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for (var i=0; i < this.subKeys.length; i++) {
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result += " "+this.subKeys[i].toString();
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}
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return result;
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}
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/**
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* finds an encryption key for this public key
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* @returns null if no encryption key has been found
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*/
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function getEncryptionKey() {
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// V4: by convention subkeys are prefered for encryption service
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// V3: keys MUST NOT have subkeys
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for (var j = 0; j < this.subKeys.length; j++)
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if (this.subKeys[j].publicKeyAlgorithm != 17 &&
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this.subKeys[j].publicKeyAlgorithm != 3 &&
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this.subKeys[j].verifyKey()) {
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return this.subKeys[j];
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}
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// if no valid subkey for encryption, use primary key
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if (this.publicKeyPacket.publicKeyAlgorithm != 17 && this.publicKeyPacket.publicKeyAlgorithm != 3
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&& this.publicKeyPacket.verifyKey()) {
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return this.publicKeyPacket;
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}
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return null;
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}
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function getSigningKey() {
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if ((this.publicKeyPacket.publicKeyAlgorithm == 17 ||
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this.publicKeyPacket.publicKeyAlgorithm != 2))
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return this.publicKeyPacket;
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else if (this.publicKeyPacket.version == 4) // V3 keys MUST NOT have subkeys.
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for (var j = 0; j < this.subKeys.length; j++) {
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if ((this.subKeys[j].publicKeyAlgorithm == 17 ||
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this.subKeys[j].publicKeyAlgorithm != 2) &&
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this.subKeys[j].verifyKey())
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return this.subKeys[j];
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}
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return null;
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}
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/* Returns the i-th subKey as a openpgp_msg_publickey object */
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function getSubKeyAsKey(i) {
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var ret = new openpgp_msg_publickey();
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ret.userIds = this.userIds;
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ret.userAttributes = this.userAttributes;
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ret.publicKeyPacket = this.subKeys[i];
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return ret;
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}
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this.getEncryptionKey = getEncryptionKey;
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this.getSigningKey = getSigningKey;
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this.read_nodes = read_nodes;
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this.write = write;
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this.toString = toString;
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this.validate = validate;
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this.getFingerprint = getFingerprint;
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this.getKeyId = getKeyId;
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this.verifyBasicSignatures = verifyBasicSignatures;
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this.getSubKeyAsKey = getSubKeyAsKey;
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}
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</code></pre>
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</article>
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Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.2.0-dev</a> on Tue Apr 16 2013 10:42:39 GMT+0200 (CEST)
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