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Remove length parameter from xxxteaDecrypt()

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de4dot 2012-02-11 16:46:02 +01:00
parent 6400a93276
commit e5a72396c2
2 changed files with 3 additions and 2 deletions
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2
de4dot.code/deobfuscators/CodeVeil/StringDecrypter.cs
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@ -220,7 +220,7 @@ namespace de4dot.code.deobfuscators.CodeVeil {
var encryptedData = new uint[data.Length / 4];
Buffer.BlockCopy(data, 0, encryptedData, 0, data.Length);
DeobUtils.xxteaDecrypt(encryptedData, encryptedData.Length, key);
DeobUtils.xxteaDecrypt(encryptedData, key);
var decryptedData = new byte[data.Length];
Buffer.BlockCopy(encryptedData, 0, decryptedData, 0, data.Length);

3
de4dot.code/deobfuscators/DeobUtils.cs
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@ -91,8 +91,9 @@ namespace de4dot.code.deobfuscators {
}
// Code converted from C implementation @ http://en.wikipedia.org/wiki/XXTEA (btea() func)
public static void xxteaDecrypt(uint[] v, int n, uint[] key) {
public static void xxteaDecrypt(uint[] v, uint[] key) {
const uint DELTA = 0x9E3779B9;
int n = v.Length;
uint rounds = (uint)(6 + 52 / n);
uint sum = rounds * DELTA;
uint y = v[0];