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make some progress toward getting psogc to work again

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This commit is contained in:
Martin Michelsen
2018-11-10 23:52:23 -08:00
parent 00bbd6a0a3
commit 833bf90333
20 changed files with 286 additions and 124 deletions
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PSOEncryption.cc
+5 -8
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@@ -130,25 +130,22 @@ PSOGCEncryption::PSOGCEncryption(uint32_t seed) : offset(0) {
basekey = basekey & 0x7FFFFFFF;
}
}
this->stream[this->offset] = basekey;
this->stream[this->offset++] = basekey;
}
this->stream[this->offset] = (((this->stream[0] >> 9) ^ (this->stream[this->offset] << 23)) ^ this->stream[15]);
this->stream[this->offset - 1] = (((this->stream[0] >> 9) ^ (this->stream[this->offset - 1] << 23)) ^ this->stream[15]);
source1 = 0;
source2 = 1;
source3 = this->offset - 1;
while (this->offset != GC_STREAM_LENGTH) {
this->stream[this->offset] = (this->stream[source3] ^ (((this->stream[source1] << 23) & 0xFF800000) ^ ((this->stream[source2] >> 9) & 0x007FFFFF)));
this->offset++;
source1++;
source2++;
source3++;
this->stream[this->offset++] = (this->stream[source3++] ^ (((this->stream[source1++] << 23) & 0xFF800000) ^ ((this->stream[source2++] >> 9) & 0x007FFFFF)));
}
for (size_t x = 0; x < 4; x++) {
for (size_t x = 0; x < 3; x++) {
this->update_stream();
}
this->offset = GC_STREAM_LENGTH - 1;
}
void PSOGCEncryption::encrypt(void* vdata, size_t size) {