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2A7B dell serial line support.

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This commit is contained in:
Slava Bacherikov 2012-01-22 08:38:36 +02:00
parent 14cfeb0749
commit 77f128e145
1 changed files with 30 additions and 12 deletions
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42
decrypt_bios.js
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@ -32,6 +32,8 @@ var encscans = [0x05,0x10,0x13,0x09,0x32,0x03,0x25,0x11,0x1F,0x17,0x06,
0x2E];
var chartabl2A7B = "012345679abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ0";
var scancods = "\00\0331234567890-=\010\011qwertyuiop[]\015\377asdfghjkl;'`\377\\zxcvbnm,./";
@ -165,7 +167,7 @@ function copy_array(ar){
return temp_arr;
}
function StrintToArray(str){
function StringToArray(str){
var arr = [];
if(typeof(str)=="object"){
return str;
@ -176,6 +178,14 @@ function StrintToArray(str){
return arr;
}
function ArrayToString(arr){
var str = "";
for(var i=0;i<arr.length;i++){
str += chr(arr[i]);
}
return str;
}
function toByte(arr){
for(var i=0;i<arr.length;i++){
arr[i] = arr[i] & 0xFF;
@ -197,7 +207,7 @@ function ByteArrToIntArr(b_arr){
function StringToIntArr(str){
return (typeof(str)=="object") ? ByteArrToIntArr(str) :
ByteArrToIntArr(StrintToArray(str));
ByteArrToIntArr(StringToArray(str));
}
function IntToByteArr(num){
@ -326,7 +336,7 @@ function calc_in(l_arr){
function begin_calc(serial, s_arr){
var ret_arr = [];
if(typeof(serial)=="string"){
serial = StrintToArray(serial);
serial = StringToArray(serial);
}
ret_arr[0] = serial[ s_arr[3] ];
@ -342,7 +352,7 @@ function begin_calc(serial, s_arr){
return toByte(ret_arr);
}
function end_calc(serial, calced_arr, s_arr){
function end_calc(serial, calced_arr, s_arr, table){
var r = 0;
var ret_arr = [];
for (var i=0;i<8;i++) {
@ -353,15 +363,18 @@ function end_calc(serial, calced_arr, s_arr){
(calced_arr[i] & 8) && (r ^= serial[1]);
(calced_arr[i] & 16) && (r ^= serial[0]);
ret_arr[i] = encscans[r % encscans.length];
ret_arr[i] = table[r % table.length];
}
return ret_arr;
}
function calc_suffix_shortcut(serial, s_arr1, s_arr2){
var serial_arr = StrintToArray(serial);
var serial_arr = StringToArray(serial);
var ret_arr = begin_calc(serial_arr,s_arr1);
return end_calc(serial_arr, ret_arr, s_arr2);
if(dell_get_serial_line(serial) == '2A7B'){
return end_calc(serial_arr,ret_arr,s_arr2,StringToArray(chartabl2A7B));
}
return end_calc(serial_arr, ret_arr, s_arr2, encscans);
}
function calc_suffix_tag(serial){
@ -376,7 +389,7 @@ function calc_suffix_hdd_new(serial){
function calc_suffix_hdd_old(serial){
// encscans[26], enscans[0xAA % enscans.length]
var ret_arr = [49,49,49,49,49];
var serial_arr = StrintToArray(serial);
var serial_arr = StringToArray(serial);
ret_arr = ret_arr.concat(calc_in(serial_arr));
// lower bits then 5 are never change
for(var i=5;i<8;i++){
@ -437,6 +450,10 @@ function blockEncode(encBlock,f1, f2, f3, f4 ,f5){
}
function dell_get_serial_line(serial){
if(typeof(serial) == 'object'){
return ArrayToString(serial.slice(serial.length - 4,
serial.length)).toUpperCase();
}
return serial.substr(serial.length - 4, serial.length).toUpperCase();
}
@ -475,12 +492,13 @@ function choseEncode(encBlock, serial){
}
}
// Need fixing for 2A7B
function answerToString(b_arr, serial){
var r = b_arr[0] % 9;
var ret_str = "";
for(var i = 0;i<16;i++){
if( ( r <= i) && (ret_str.length < 8) ){
if(dell_get_serial_line(serial) == "2A7B"){
ret_str += chartabl2A7B.charAt( b_arr[i] % chartabl2A7B.length);
} else if( ( r <= i) && (ret_str.length < 8) ){
ret_str += scancods.charAt(encscans[b_arr[i] % encscans.length]);
}
}
@ -499,14 +517,14 @@ function dell_encode(in_str, cnt, serial){
/* 7 symbols + 4 symbols ( 595B, D35B, 2A7B, A95B ) */
function getBiosPwdForDellTag(serial){
var serial_arr = StrintToArray(serial);
var serial_arr = StringToArray(serial);
serial_arr = serial_arr.concat(calc_suffix_tag(serial_arr));
return answerToString(dell_encode(serial_arr,23, serial), serial);
}
/* 12 symbols + 4 symbols ( 595B, D35B, 2A7B, A95B ) */
function getBiosPwdForDellHddNew(serial){
var serial_arr = StrintToArray(serial);
var serial_arr = StringToArray(serial);
serial_arr = serial_arr.concat(calc_suffix_hdd_new(serial_arr));
return answerToString(dell_encode(serial_arr,23, serial), serial);
}