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potential solution for PPC masking bug

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Peter Thorson
2013-04-30 17:14:34 -05:00
parent 568743e587
commit f110b0bc65
1 changed files with 5 additions and 4 deletions
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9
websocketpp/frame.hpp
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@@ -749,10 +749,11 @@ inline size_t word_mask_circ(uint8_t* input, uint8_t* output, size_t length,
}
// mask partial word at the end
if (l > 0) {
size_t r = 8*(sizeof(size_t) - l); // convert from bytes to bits
output_word[n] = input_word[n] ^ ((prepared_key << r) >> r);
}
size_t start = length - l;
char * test = reinterpret_cast<char *>(&prepared_key);
for (size_t i = 0; i < l; ++i) {
output[start+i] = input[start+i] ^ test[i];
}
return circshift_prepared_key(prepared_key,l);
}