public abstract MethodBodyHeader Decrypt(MethodInfo methodInfo, out byte[] code, out byte[] extraSections);
public override MethodBodyHeader Decrypt(MethodInfo methodInfo, out byte[] code, out byte[] extraSections) {
byte[] data = peImage.OffsetReadBytes(endOfMetadata + methodInfo.codeOffs, (int)methodInfo.codeSize);
int numQwords = (int)(methodInfo.codeSize / 8);
for (int i = 0; i < numQwords; i++) {
int offset = i * 8;
uint q0 = ReadUInt32_be(data, offset);
uint q1 = ReadUInt32_be(data, offset + 4);
const uint magic = 0x9E3779B8;
uint val = 0xC6EF3700; // magic * 0x20
for (int j = 0; j < 32; j++) {
q1 -= ((q0 << 4) + key[2]) ^ (val + q0) ^ ((q0 >> 5) + key[3]);
q0 -= ((q1 << 4) + key[0]) ^ (val + q1) ^ ((q1 >> 5) + key[1]);
val -= magic;
}
WriteUInt32_be(data, offset, q0);
WriteUInt32_be(data, offset + 4, q1);
}
return GetCodeBytes(data, out code, out extraSections);
}
public override MethodBodyHeader Decrypt(MethodInfo methodInfo, out byte[] code, out byte[] extraSections) {
peImage.Reader.Position = endOfMetadata + methodInfo.codeOffs;
return MethodBodyParser.ParseMethodBody(peImage.Reader, out code, out extraSections);
}
public override MethodBodyHeader Decrypt(MethodInfo methodInfo, out byte[] code, out byte[] extraSections) {
byte[] data = peImage.OffsetReadBytes(endOfMetadata + methodInfo.codeOffs, (int)methodInfo.codeSize);
for (int i = 0; i < data.Length; i++) {
byte b = data[i];
b ^= codeHeader.decryptionKey[(methodInfo.codeOffs - codeHeaderSize + i) % 16];
b ^= codeHeader.decryptionKey[(methodInfo.codeOffs - codeHeaderSize + i + 7) % 16];
data[i] = b;
}
return GetCodeBytes(data, out code, out extraSections);
}
public override MethodBodyHeader decrypt(MethodInfo methodInfo, out byte[] code, out byte[] extraSections)
{
peImage.Reader.Position = peImage.rvaToOffset(methodInfo.codeOffs);
return MethodBodyParser.parseMethodBody(peImage.Reader, out code, out extraSections);
}
