github-starred/ultimatepp
2
0
Fork 0
mirror of https://github.com/ultimatepp/ultimatepp.git synced 2026-06-03 06:12:43 -06:00
Code Issues 33 Projects Packages Wiki Activity Actions

Bazaar/Protect : using new Cypher package instead of StreamCypher

Browse source 
Added Initialization Vectors handling in encryption

git-svn-id: svn://ultimatepp.org/upp/trunk@2739 f0d560ea-af0d-0410-9eb7-867de7ffcac7
This commit is contained in:
micio 2010-10-03 20:44:12 +00:00
parent 34b1a0f02e
commit f2da9caeda
6 changed files with 29 additions and 20 deletions
Download patch file Download diff file Expand all files Collapse all files

11
bazaar/ProtectEncrypt/ProtectEncrypt.cpp
View file

@ -31,7 +31,8 @@ int CryptBuf(byte *buf, byte *bufEnd, String const &key)
while( (bStart = ProtectSearchBuf(bStart, bufEnd, (const byte *)PROTECT_START_MARKER, strlen(PROTECT_START_MARKER))) != NULL)
{
// overwrite start pattern, just to fool a bit
// symple pattern search
// simple pattern search and use it as the encrypt init vector
byte *nonce = bStart;
for(unsigned i = 0; i < strlen(PROTECT_START_MARKER); i++)
*bStart++ = (byte)(Random() & 0xff);
@ -49,8 +50,8 @@ int CryptBuf(byte *buf, byte *bufEnd, String const &key)
*bEnd++ = (byte)(Random() & 0xff);
// crypt buffer
Snow2 snow2(key);
snow2.Encode(bStart, bStart, size);
Snow2 snow2((byte const *)~key, key.GetCount(), nonce, strlen(PROTECT_START_MARKER));
snow2(bStart, size);
patches++;
}
@ -88,8 +89,8 @@ int ObfuscateBuf(byte *buf, byte *bufEnd)
*bEnd++ = (byte)(Random() & 0xff);
// obfuscate buffer
Snow2 snow2(key);
snow2.Encode(bStart, bStart, size);
Snow2 snow2(key, "12345678");
snow2(bStart, size);
patches++;
}