Move old OpenPGP.js to /vendors instead of npm

vendors/openpgp-2.6.2/src/packet/one_pass_signature.js

@@ -0,0 +1,104 @@
+// GPG4Browsers - An OpenPGP implementation in javascript
+// Copyright (C) 2011 Recurity Labs GmbH
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 3.0 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+/**
+ * Implementation of the One-Pass Signature Packets (Tag 4)<br/>
+ * <br/>
+ * {@link http://tools.ietf.org/html/rfc4880#section-5.4|RFC4880 5.4}: The One-Pass Signature packet precedes the signed data and contains
+ * enough information to allow the receiver to begin calculating any
+ * hashes needed to verify the signature.  It allows the Signature
+ * packet to be placed at the end of the message, so that the signer
+ * can compute the entire signed message in one pass.
+* @requires util
+ * @requires enums
+ * @requires type/keyid
+ * @module packet/one_pass_signature
+*/
+
+'use strict';
+
+import util from '../util.js';
+import enums from '../enums.js';
+import type_keyid from '../type/keyid.js';
+
+/**
+ * @constructor
+ */
+export default function OnePassSignature() {
+  this.tag = enums.packet.onePassSignature; // The packet type
+  this.version = null; // A one-octet version number.  The current version is 3.
+  this.type = null; // A one-octet signature type.  Signature types are described in {@link http://tools.ietf.org/html/rfc4880#section-5.2.1|RFC4880 Section 5.2.1}.
+  this.hashAlgorithm = null; // A one-octet number describing the hash algorithm used. (See {@link http://tools.ietf.org/html/rfc4880#section-9.4|RFC4880 9.4})
+  this.publicKeyAlgorithm = null; // A one-octet number describing the public-key algorithm used. (See {@link http://tools.ietf.org/html/rfc4880#section-9.1|RFC4880 9.1})
+  this.signingKeyId = null; // An eight-octet number holding the Key ID of the signing key.
+  this.flags = null; //  A one-octet number holding a flag showing whether the signature is nested.  A zero value indicates that the next packet is another One-Pass Signature packet that describes another signature to be applied to the same message data.
+}
+
+/**
+ * parsing function for a one-pass signature packet (tag 4).
+ * @param {Uint8Array} bytes payload of a tag 4 packet
+ * @return {module:packet/one_pass_signature} object representation
+ */
+OnePassSignature.prototype.read = function (bytes) {
+  var mypos = 0;
+  // A one-octet version number.  The current version is 3.
+  this.version = bytes[mypos++];
+
+  // A one-octet signature type.  Signature types are described in
+  //   Section 5.2.1.
+  this.type = enums.read(enums.signature, bytes[mypos++]);
+
+  // A one-octet number describing the hash algorithm used.
+  this.hashAlgorithm = enums.read(enums.hash, bytes[mypos++]);
+
+  // A one-octet number describing the public-key algorithm used.
+  this.publicKeyAlgorithm = enums.read(enums.publicKey, bytes[mypos++]);
+
+  // An eight-octet number holding the Key ID of the signing key.
+  this.signingKeyId = new type_keyid();
+  this.signingKeyId.read(bytes.subarray(mypos, mypos + 8));
+  mypos += 8;
+
+  // A one-octet number holding a flag showing whether the signature
+  //   is nested.  A zero value indicates that the next packet is
+  //   another One-Pass Signature packet that describes another
+  //   signature to be applied to the same message data.
+  this.flags = bytes[mypos++];
+  return this;
+};
+
+/**
+ * creates a string representation of a one-pass signature packet
+ * @return {Uint8Array} a Uint8Array representation of a one-pass signature packet
+ */
+OnePassSignature.prototype.write = function () {
+
+  var start = new Uint8Array([3, enums.write(enums.signature, this.type),
+    enums.write(enums.hash, this.hashAlgorithm),
+    enums.write(enums.publicKey, this.publicKeyAlgorithm)]);
+
+  var end = new Uint8Array([this.flags]);
+
+  return util.concatUint8Array([start, this.signingKeyId.write(), end]);
+};
+
+/**
+ * Fix custom types after cloning
+ */
+OnePassSignature.prototype.postCloneTypeFix = function() {
+  this.signingKeyId = type_keyid.fromClone(this.signingKeyId);
+};