blackbeard420/DecryptSourceProtection
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Update decrypt.html

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EncryptionConfig="5"
This commit is contained in:
skdatmonster 2014-01-28 00:52:53 +00:00
parent 16e28c021b
commit ac7c7aed4b
1 changed files with 25 additions and 2 deletions
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27
decrypt.html
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@ -13,6 +13,7 @@
var xpath = "//EncodedData|//*[@EncodedSourceKey]|//*[@SourceKey]";
var keymatl3 = '\x59\x00\x53\x00\x33\x00\x3F\x00\x43\x00\x4E\x00\x21\x00\x40\x00\x42\x00\x73\x00\x49\x00\x74\x00\x39\x00\x6C\x00\x70\x00\x2D\x00\x3D\x00\x43\x00\x4A\x00\x32\x00\x30\x00\x65\x00\x4C\x00\x45\x00\x76\x00\x21\x00\x5A\x00\x64\x00\x49\x00\x53\x00\x33\x00\x25\x00\x68\x00\x52\x00\x6B\x00\x47\x00\x70\x00\x57\x00\x72\x00\x79\x00\x4F\x00\x59\x00\x21\x00\x6C\x00\x69\x00\x21\x00\x4C\x00\x2F\x00\x6E\x00\x38\x00\x5F\x00\x23\x00\x2A\x00\x76\x00\x34\x00\x2E\x00\x48\x00\x7A\x00\x57\x00\x48\x00\x2D\x00\x70\x00\x34\x00\x76\x00';
var keymatl2 = CryptoJS.enc.Hex.parse('5D002C0031006800610031004500580054002900240051005A003A005200370065006900390041004B0028005D005D00570034004800630031005C006A0040');
var keymatl5 = CryptoJS.enc.Hex.parse('5300340079005400560049005A007A00240063003E005700380026005D0078002F003B004F00550065003F00660051006F007A003300620063005700260042007B0031005A00240068002B006F00460033005C004C003D0023004B005E00650055002500580032007300480048002B0055003D004D0063004E0037002900');
function print(text, color) {
var output = document.getElementById('output');
@ -23,6 +24,22 @@ function print(text, color) {
output.appendChild(document.createElement('br'));
}
function decrypt_5(b64text, format) {
var ciphertext = CryptoJS.enc.Base64.parse(b64text);
ciphertext = CryptoJS.enc.Hex.parse(ciphertext.toString().slice(4));
var key = CryptoJS.SHA256(keymatl5);
var iv = CryptoJS.lib.WordArray.create([0, 0, 0, 0]);
var options = {iv: iv, mode: CryptoJS.mode.CBC};
var decryptor = CryptoJS.algo.AES.createDecryptor(key, options);
var part1 = decryptor.process(ciphertext);
var part2 = decryptor.finalize();
var plaintext = part1.toString(format) + part2.toString(format);
if (plaintext.length == 0 && ciphertext.words.length > 0) {
print('Decryption was unsuccessful', 'red');
}
return plaintext;
}
function decrypt_3(b64text, format) {
var ciphertext = CryptoJS.enc.Base64.parse(b64text);
var key = CryptoJS.SHA256(keymatl3);
@ -69,8 +86,10 @@ function patchXML(data) {
var temp = element.getAttribute('EncryptionConfig');
if (temp == '3') {
encryptionConfig = 3;
} else if(temp == '2') {
} else if (temp == '2') {
encryptionConfig = 2;
} else if (temp == '5') {
encryptionConfig = 5;
} else {
print('Error: An unsupported EncryptionConfig value was found. (' + temp + ') Decryption of this file is not yet supported.', 'red');
return '';
@ -90,9 +109,11 @@ function patchXML(data) {
if (decoded.charCodeAt(decoded.length - 1) == 0) {
decoded = decoded.slice(0, decoded.length - 1);
}
} else if (encryptionConfig == 5) {
decoded = decrypt_5(list.join(''), CryptoJS.enc.Utf16LE);
}
var subdoc = new DOMParser().parseFromString(decoded, 'application/xml');
if (subdoc.lastChild.tagName == 'parsererror') {
if (subdoc.getElementsByTagName('parsererror').length > 0) {
print('An XML parser error occurred, decryption may have been unsuccessful', 'red');
return '';
}
@ -108,6 +129,8 @@ function patchXML(data) {
decoded = decrypt_3(element.getAttribute('EncodedSourceKey'), CryptoJS.enc.Latin1);
} else if (encryptionConfig == 2) {
decoded = decrypt_2(element.getAttribute('EncodedSourceKey'), CryptoJS.enc.Latin1);
} else if (encryptionConfig == 5) {
decoded = decrypt_5(element.getAttribute('EncodedSourceKey'), CryptoJS.enc.Latin1);
}
element.removeAttribute('EncodedSourceKey');
if (element.hasAttribute('SourceProtectionType')) {