mirror of
https://github.com/moparisthebest/mailiverse
synced 2024-08-13 16:53:55 -04:00
280 lines
9.1 KiB
JavaScript
280 lines
9.1 KiB
JavaScript
/*! asn1hex-1.1.js (c) 2012 Kenji Urushima | kjur.github.com/jsrsasign/license
|
|
*/
|
|
//
|
|
// asn1hex.js - Hexadecimal represented ASN.1 string library
|
|
//
|
|
// version: 1.1 (09-May-2012)
|
|
//
|
|
// Copyright (c) 2010-2012 Kenji Urushima (kenji.urushima@gmail.com)
|
|
//
|
|
// This software is licensed under the terms of the MIT License.
|
|
// http://kjur.github.com/jsrsasign/license/
|
|
//
|
|
// The above copyright and license notice shall be
|
|
// included in all copies or substantial portions of the Software.
|
|
//
|
|
// Depends on:
|
|
//
|
|
|
|
// MEMO:
|
|
// f('3082025b02...', 2) ... 82025b ... 3bytes
|
|
// f('020100', 2) ... 01 ... 1byte
|
|
// f('0203001...', 2) ... 03 ... 1byte
|
|
// f('02818003...', 2) ... 8180 ... 2bytes
|
|
// f('3080....0000', 2) ... 80 ... -1
|
|
//
|
|
// Requirements:
|
|
// - ASN.1 type octet length MUST be 1.
|
|
// (i.e. ASN.1 primitives like SET, SEQUENCE, INTEGER, OCTETSTRING ...)
|
|
// -
|
|
/**
|
|
* get byte length for ASN.1 L(length) bytes
|
|
* @name getByteLengthOfL_AtObj
|
|
* @memberOf ASN1HEX
|
|
* @function
|
|
* @param {String} s hexadecimal string of ASN.1 DER encoded data
|
|
* @param {Number} pos string index
|
|
* @return byte length for ASN.1 L(length) bytes
|
|
*/
|
|
function _asnhex_getByteLengthOfL_AtObj(s, pos) {
|
|
if (s.substring(pos + 2, pos + 3) != '8') return 1;
|
|
var i = parseInt(s.substring(pos + 3, pos + 4));
|
|
if (i == 0) return -1; // length octet '80' indefinite length
|
|
if (0 < i && i < 10) return i + 1; // including '8?' octet;
|
|
return -2; // malformed format
|
|
}
|
|
|
|
|
|
/**
|
|
* get hexadecimal string for ASN.1 L(length) bytes
|
|
* @name getHexOfL_AtObj
|
|
* @memberOf ASN1HEX
|
|
* @function
|
|
* @param {String} s hexadecimal string of ASN.1 DER encoded data
|
|
* @param {Number} pos string index
|
|
* @return {String} hexadecimal string for ASN.1 L(length) bytes
|
|
*/
|
|
function _asnhex_getHexOfL_AtObj(s, pos) {
|
|
var len = _asnhex_getByteLengthOfL_AtObj(s, pos);
|
|
if (len < 1) return '';
|
|
return s.substring(pos + 2, pos + 2 + len * 2);
|
|
}
|
|
|
|
//
|
|
// getting ASN.1 length value at the position 'idx' of
|
|
// hexa decimal string 's'.
|
|
//
|
|
// f('3082025b02...', 0) ... 82025b ... ???
|
|
// f('020100', 0) ... 01 ... 1
|
|
// f('0203001...', 0) ... 03 ... 3
|
|
// f('02818003...', 0) ... 8180 ... 128
|
|
/**
|
|
* get integer value of ASN.1 length for ASN.1 data
|
|
* @name getIntOfL_AtObj
|
|
* @memberOf ASN1HEX
|
|
* @function
|
|
* @param {String} s hexadecimal string of ASN.1 DER encoded data
|
|
* @param {Number} pos string index
|
|
* @return ASN.1 L(length) integer value
|
|
*/
|
|
function _asnhex_getIntOfL_AtObj(s, pos) {
|
|
var hLength = _asnhex_getHexOfL_AtObj(s, pos);
|
|
if (hLength == '') return -1;
|
|
var bi;
|
|
if (parseInt(hLength.substring(0, 1)) < 8) {
|
|
bi = parseBigInt(hLength, 16);
|
|
} else {
|
|
bi = parseBigInt(hLength.substring(2), 16);
|
|
}
|
|
return bi.intValue();
|
|
}
|
|
|
|
/**
|
|
* get ASN.1 value starting string position for ASN.1 object refered by index 'idx'.
|
|
* @name getStartPosOfV_AtObj
|
|
* @memberOf ASN1HEX
|
|
* @function
|
|
* @param {String} s hexadecimal string of ASN.1 DER encoded data
|
|
* @param {Number} pos string index
|
|
*/
|
|
function _asnhex_getStartPosOfV_AtObj(s, pos) {
|
|
var l_len = _asnhex_getByteLengthOfL_AtObj(s, pos);
|
|
if (l_len < 0) return l_len;
|
|
return pos + (l_len + 1) * 2;
|
|
}
|
|
|
|
/**
|
|
* get hexadecimal string of ASN.1 V(value)
|
|
* @name getHexOfV_AtObj
|
|
* @memberOf ASN1HEX
|
|
* @function
|
|
* @param {String} s hexadecimal string of ASN.1 DER encoded data
|
|
* @param {Number} pos string index
|
|
* @return {String} hexadecimal string of ASN.1 value.
|
|
*/
|
|
function _asnhex_getHexOfV_AtObj(s, pos) {
|
|
var pos1 = _asnhex_getStartPosOfV_AtObj(s, pos);
|
|
var len = _asnhex_getIntOfL_AtObj(s, pos);
|
|
return s.substring(pos1, pos1 + len * 2);
|
|
}
|
|
|
|
/**
|
|
* get hexadecimal string of ASN.1 TLV at
|
|
* @name getHexOfTLV_AtObj
|
|
* @memberOf ASN1HEX
|
|
* @function
|
|
* @param {String} s hexadecimal string of ASN.1 DER encoded data
|
|
* @param {Number} pos string index
|
|
* @return {String} hexadecimal string of ASN.1 TLV.
|
|
* @since 1.1
|
|
*/
|
|
function _asnhex_getHexOfTLV_AtObj(s, pos) {
|
|
var hT = s.substr(pos, 2);
|
|
var hL = _asnhex_getHexOfL_AtObj(s, pos);
|
|
var hV = _asnhex_getHexOfV_AtObj(s, pos);
|
|
return hT + hL + hV;
|
|
}
|
|
|
|
/**
|
|
* get next sibling starting index for ASN.1 object string
|
|
* @name getPosOfNextSibling_AtObj
|
|
* @memberOf ASN1HEX
|
|
* @function
|
|
* @param {String} s hexadecimal string of ASN.1 DER encoded data
|
|
* @param {Number} pos string index
|
|
* @return next sibling starting index for ASN.1 object string
|
|
*/
|
|
function _asnhex_getPosOfNextSibling_AtObj(s, pos) {
|
|
var pos1 = _asnhex_getStartPosOfV_AtObj(s, pos);
|
|
var len = _asnhex_getIntOfL_AtObj(s, pos);
|
|
return pos1 + len * 2;
|
|
}
|
|
|
|
/**
|
|
* get array of indexes of child ASN.1 objects
|
|
* @name getPosArrayOfChildren_AtObj
|
|
* @memberOf ASN1HEX
|
|
* @function
|
|
* @param {String} s hexadecimal string of ASN.1 DER encoded data
|
|
* @param {Number} start string index of ASN.1 object
|
|
* @return {Array of Number} array of indexes for childen of ASN.1 objects
|
|
*/
|
|
function _asnhex_getPosArrayOfChildren_AtObj(h, pos) {
|
|
var a = new Array();
|
|
var p0 = _asnhex_getStartPosOfV_AtObj(h, pos);
|
|
a.push(p0);
|
|
|
|
var len = _asnhex_getIntOfL_AtObj(h, pos);
|
|
var p = p0;
|
|
var k = 0;
|
|
while (1) {
|
|
var pNext = _asnhex_getPosOfNextSibling_AtObj(h, p);
|
|
if (pNext == null || (pNext - p0 >= (len * 2))) break;
|
|
if (k >= 200) break;
|
|
|
|
a.push(pNext);
|
|
p = pNext;
|
|
|
|
k++;
|
|
}
|
|
|
|
return a;
|
|
}
|
|
|
|
/**
|
|
* get string index of nth child object of ASN.1 object refered by h, idx
|
|
* @name getNthChildIndex_AtObj
|
|
* @memberOf ASN1HEX
|
|
* @function
|
|
* @param {String} h hexadecimal string of ASN.1 DER encoded data
|
|
* @param {Number} idx start string index of ASN.1 object
|
|
* @param {Number} nth for child
|
|
* @return {Number} string index of nth child.
|
|
* @since 1.1
|
|
*/
|
|
function _asnhex_getNthChildIndex_AtObj(h, idx, nth) {
|
|
var a = _asnhex_getPosArrayOfChildren_AtObj(h, idx);
|
|
return a[nth];
|
|
}
|
|
|
|
// ========== decendant methods ==============================
|
|
|
|
/**
|
|
* get string index of nth child object of ASN.1 object refered by h, idx
|
|
* @name getDecendantIndexByNthList
|
|
* @memberOf ASN1HEX
|
|
* @function
|
|
* @param {String} h hexadecimal string of ASN.1 DER encoded data
|
|
* @param {Number} currentIndex start string index of ASN.1 object
|
|
* @param {Array of Number} nthList array list of nth
|
|
* @return {Number} string index refered by nthList
|
|
* @since 1.1
|
|
*/
|
|
function _asnhex_getDecendantIndexByNthList(h, currentIndex, nthList) {
|
|
if (nthList.length == 0) {
|
|
return currentIndex;
|
|
}
|
|
var firstNth = nthList.shift();
|
|
var a = _asnhex_getPosArrayOfChildren_AtObj(h, currentIndex);
|
|
return _asnhex_getDecendantIndexByNthList(h, a[firstNth], nthList);
|
|
}
|
|
|
|
/**
|
|
* get hexadecimal string of ASN.1 TLV refered by current index and nth index list.
|
|
* @name getDecendantHexTLVByNthList
|
|
* @memberOf ASN1HEX
|
|
* @function
|
|
* @param {String} h hexadecimal string of ASN.1 DER encoded data
|
|
* @param {Number} currentIndex start string index of ASN.1 object
|
|
* @param {Array of Number} nthList array list of nth
|
|
* @return {Number} hexadecimal string of ASN.1 TLV refered by nthList
|
|
* @since 1.1
|
|
*/
|
|
function _asnhex_getDecendantHexTLVByNthList(h, currentIndex, nthList) {
|
|
var idx = _asnhex_getDecendantIndexByNthList(h, currentIndex, nthList);
|
|
return _asnhex_getHexOfTLV_AtObj(h, idx);
|
|
}
|
|
|
|
/**
|
|
* get hexadecimal string of ASN.1 V refered by current index and nth index list.
|
|
* @name getDecendantHexVByNthList
|
|
* @memberOf ASN1HEX
|
|
* @function
|
|
* @param {String} h hexadecimal string of ASN.1 DER encoded data
|
|
* @param {Number} currentIndex start string index of ASN.1 object
|
|
* @param {Array of Number} nthList array list of nth
|
|
* @return {Number} hexadecimal string of ASN.1 V refered by nthList
|
|
* @since 1.1
|
|
*/
|
|
function _asnhex_getDecendantHexVByNthList(h, currentIndex, nthList) {
|
|
var idx = _asnhex_getDecendantIndexByNthList(h, currentIndex, nthList);
|
|
return _asnhex_getHexOfV_AtObj(h, idx);
|
|
}
|
|
|
|
// ========== class definition ==============================
|
|
|
|
/**
|
|
* ASN.1 DER encoded hexadecimal string utility class
|
|
* @class ASN.1 DER encoded hexadecimal string utility class
|
|
* @author Kenji Urushima
|
|
* @version 1.1 (09 May 2012)
|
|
* @see <a href="http://kjur.github.com/jsrsasigns/">'jwrsasign'(RSA Sign JavaScript Library) home page http://kjur.github.com/jsrsasign/</a>
|
|
* @since 1.1
|
|
*/
|
|
function ASN1HEX() {
|
|
return ASN1HEX;
|
|
}
|
|
|
|
ASN1HEX.getByteLengthOfL_AtObj = _asnhex_getByteLengthOfL_AtObj;
|
|
ASN1HEX.getHexOfL_AtObj = _asnhex_getHexOfL_AtObj;
|
|
ASN1HEX.getIntOfL_AtObj = _asnhex_getIntOfL_AtObj;
|
|
ASN1HEX.getStartPosOfV_AtObj = _asnhex_getStartPosOfV_AtObj;
|
|
ASN1HEX.getHexOfV_AtObj = _asnhex_getHexOfV_AtObj;
|
|
ASN1HEX.getHexOfTLV_AtObj = _asnhex_getHexOfTLV_AtObj;
|
|
ASN1HEX.getPosOfNextSibling_AtObj = _asnhex_getPosOfNextSibling_AtObj;
|
|
ASN1HEX.getPosArrayOfChildren_AtObj = _asnhex_getPosArrayOfChildren_AtObj;
|
|
ASN1HEX.getNthChildIndex_AtObj = _asnhex_getNthChildIndex_AtObj;
|
|
ASN1HEX.getDecendantIndexByNthList = _asnhex_getDecendantIndexByNthList;
|
|
ASN1HEX.getDecendantHexVByNthList = _asnhex_getDecendantHexVByNthList;
|
|
ASN1HEX.getDecendantHexTLVByNthList = _asnhex_getDecendantHexTLVByNthList;
|