int RiverKeyak_Initialize(Keyak_Instance *instance, const unsigned char *key, unsigned int keySizeInBits, const unsigned char *nonce)
{
int result = Keccak_DuplexInitialize(&(instance->duplex), 548, 252);
if (result != 0)
return result;
instance->phase = Keyak_Phase_FeedingAssociatedData;
return Keyak_Initialize(&(instance->duplex), key, keySizeInBits, nonce);
}
void displayDuplexIntermediateValuesOne(FILE *f, unsigned int rate, unsigned int capacity)
{
Keccak_DuplexInstance duplex;
unsigned char input[512];
unsigned int inBitLen;
unsigned char output[512];
unsigned int outBitLen;
unsigned int i, j;
const unsigned int M = 239*251;
unsigned int x = 33;
Keccak_DuplexInitialize(&duplex, rate, capacity);
displayStateAsBytes(1, "Initial state", duplex.state);
for(i=0; i<=rate+120; i+=123) {
inBitLen = i;
if (inBitLen > (rate-2)) inBitLen = rate-2;
memset(input, 0, 512);
for(j=0; j<inBitLen; j++) {
x = (x*x) % M;
if ((x % 2) != 0)
input[j/8] |= 1 << (j%8);
}
{
char text[100];
sprintf(text, "Input (%d bits)", inBitLen);
displayBytes(1, text, input, (inBitLen+7)/8);
}
outBitLen = rate;
if ((inBitLen%8) == 0)
Keccak_Duplexing(&duplex, input, inBitLen/8, output, (outBitLen+7)/8, 0x01);
else
Keccak_Duplexing(&duplex, input, inBitLen/8, output, (outBitLen+7)/8, input[inBitLen/8] | (1 << (inBitLen%8)));
{
char text[100];
sprintf(text, "Output (%d bits)", outBitLen);
displayBytes(1, text, output, (outBitLen+7)/8);
}
}
}
