"ncf" <[EMAIL PROTECTED]> writes:
> As I fail to see how an array could be used in this (my own
> stupidity?), would you have any such example?
How's this (untested):
state = [A,B,C,D,E,F,G,H]
magic = [0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5, 0xD807AA98 ]
def P(state, i, magic):
a,b,c,d,e,f,g,h = state[i:] + state[:i]
temp1 = h + S3(e) + F1(e,f,g) + K + x
temp2 = S2(a) + F0(a,b,c)
# d += temp1; h = temp1 + temp2
state[(i+3)%8] += temp1; state[(i+7)%8] = temp1 + temp2
for i in range(9):
P(state, i, W, magic)
Actually this isn't so good. You have to be careful about arithmetic
overflow, i.e. do all the additions mod 2**32, so you don't get Python
longs. I'll leave that as an exercise.
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