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-rw-r--r--python2/sha3.py221
1 files changed, 112 insertions, 109 deletions
diff --git a/python2/sha3.py b/python2/sha3.py
index a79fd79..7b62563 100644
--- a/python2/sha3.py
+++ b/python2/sha3.py
@@ -280,36 +280,35 @@ class SHA3:
self.keccakFRound(A, self.RC[i] & self.wmod)
- def toLane(self, message, rr, ww, off):
+ def toLane(self, message, n, ww, off):
'''
Convert a chunk of byte:s to a word
@param message:bytes The message
- @param rr:int Bitrate in bytes
+ @param n:int `min(len(message), rr)`
+ rr:int Bitrate in bytes
@param ww:int Word size in bytes
@param off:int The offset in the message
@return :int Lane
'''
rc = 0
i = off + ww - 1
- n = min(len(message), rr)
while i >= off:
rc = (rc << 8) | (message[i] if (i < n) else 0)
i -= 1
return rc
- def toLane64(self, message, rr, off):
+ def toLane64(self, message, n, off):
'''
Convert a chunk of byte:s to a 64-bit word
@param message:bytes The message
- @param rr:int Bitrate in bytes
+ @param n:int `min(len(message), rr)`
+ rr:int Bitrate in bytes
@param off:int The offset in the message
@return :int Lane
'''
- n = min(len(message), rr)
-
return ((message[off + 7] << 56) if (off + 7 < n) else 0) | \
((message[off + 6] << 48) if (off + 6 < n) else 0) | \
((message[off + 5] << 40) if (off + 5 < n) else 0) | \
@@ -392,62 +391,64 @@ class SHA3:
# Absorbing phase
if ww == 8:
for i in range(0, nnn, rr):
- self.S[ 0] ^= self.toLane64(message, rr, 0)
- self.S[ 5] ^= self.toLane64(message, rr, 8)
- self.S[10] ^= self.toLane64(message, rr, 16)
- self.S[15] ^= self.toLane64(message, rr, 24)
- self.S[20] ^= self.toLane64(message, rr, 32)
- self.S[ 1] ^= self.toLane64(message, rr, 40)
- self.S[ 6] ^= self.toLane64(message, rr, 48)
- self.S[11] ^= self.toLane64(message, rr, 56)
- self.S[16] ^= self.toLane64(message, rr, 64)
- self.S[21] ^= self.toLane64(message, rr, 72)
- self.S[ 2] ^= self.toLane64(message, rr, 80)
- self.S[ 7] ^= self.toLane64(message, rr, 88)
- self.S[12] ^= self.toLane64(message, rr, 96)
- self.S[17] ^= self.toLane64(message, rr, 104)
- self.S[22] ^= self.toLane64(message, rr, 112)
- self.S[ 3] ^= self.toLane64(message, rr, 120)
- self.S[ 8] ^= self.toLane64(message, rr, 128)
- self.S[13] ^= self.toLane64(message, rr, 136)
- self.S[18] ^= self.toLane64(message, rr, 144)
- self.S[23] ^= self.toLane64(message, rr, 152)
- self.S[ 4] ^= self.toLane64(message, rr, 160)
- self.S[ 9] ^= self.toLane64(message, rr, 168)
- self.S[14] ^= self.toLane64(message, rr, 176)
- self.S[19] ^= self.toLane64(message, rr, 184)
- self.S[24] ^= self.toLane64(message, rr, 192)
+ n = min(len(message), rr)
+ self.S[ 0] ^= self.toLane64(message, n, 0)
+ self.S[ 5] ^= self.toLane64(message, n, 8)
+ self.S[10] ^= self.toLane64(message, n, 16)
+ self.S[15] ^= self.toLane64(message, n, 24)
+ self.S[20] ^= self.toLane64(message, n, 32)
+ self.S[ 1] ^= self.toLane64(message, n, 40)
+ self.S[ 6] ^= self.toLane64(message, n, 48)
+ self.S[11] ^= self.toLane64(message, n, 56)
+ self.S[16] ^= self.toLane64(message, n, 64)
+ self.S[21] ^= self.toLane64(message, n, 72)
+ self.S[ 2] ^= self.toLane64(message, n, 80)
+ self.S[ 7] ^= self.toLane64(message, n, 88)
+ self.S[12] ^= self.toLane64(message, n, 96)
+ self.S[17] ^= self.toLane64(message, n, 104)
+ self.S[22] ^= self.toLane64(message, n, 112)
+ self.S[ 3] ^= self.toLane64(message, n, 120)
+ self.S[ 8] ^= self.toLane64(message, n, 128)
+ self.S[13] ^= self.toLane64(message, n, 136)
+ self.S[18] ^= self.toLane64(message, n, 144)
+ self.S[23] ^= self.toLane64(message, n, 152)
+ self.S[ 4] ^= self.toLane64(message, n, 160)
+ self.S[ 9] ^= self.toLane64(message, n, 168)
+ self.S[14] ^= self.toLane64(message, n, 176)
+ self.S[19] ^= self.toLane64(message, n, 184)
+ self.S[24] ^= self.toLane64(message, n, 192)
self.keccakF(self.S)
message = message[rr:]
else:
for i in range(0, nnn, rr):
- self.S[ 0] ^= self.toLane(message, rr, ww, 0)
- self.S[ 5] ^= self.toLane(message, rr, ww, ww)
- self.S[10] ^= self.toLane(message, rr, ww, 2 * ww)
- self.S[15] ^= self.toLane(message, rr, ww, 3 * ww)
- self.S[20] ^= self.toLane(message, rr, ww, 4 * ww)
- self.S[ 1] ^= self.toLane(message, rr, ww, 5 * ww)
- self.S[ 6] ^= self.toLane(message, rr, ww, 6 * ww)
- self.S[11] ^= self.toLane(message, rr, ww, 7 * ww)
- self.S[16] ^= self.toLane(message, rr, ww, 8 * ww)
- self.S[21] ^= self.toLane(message, rr, ww, 9 * ww)
- self.S[ 2] ^= self.toLane(message, rr, ww, 10 * ww)
- self.S[ 7] ^= self.toLane(message, rr, ww, 11 * ww)
- self.S[12] ^= self.toLane(message, rr, ww, 12 * ww)
- self.S[17] ^= self.toLane(message, rr, ww, 13 * ww)
- self.S[22] ^= self.toLane(message, rr, ww, 14 * ww)
- self.S[ 3] ^= self.toLane(message, rr, ww, 15 * ww)
- self.S[ 8] ^= self.toLane(message, rr, ww, 16 * ww)
- self.S[13] ^= self.toLane(message, rr, ww, 17 * ww)
- self.S[18] ^= self.toLane(message, rr, ww, 18 * ww)
- self.S[23] ^= self.toLane(message, rr, ww, 19 * ww)
- self.S[ 4] ^= self.toLane(message, rr, ww, 20 * ww)
- self.S[ 9] ^= self.toLane(message, rr, ww, 21 * ww)
- self.S[14] ^= self.toLane(message, rr, ww, 22 * ww)
- self.S[19] ^= self.toLane(message, rr, ww, 23 * ww)
- self.S[24] ^= self.toLane(message, rr, ww, 24 * ww)
- message = message[rr:]
+ n = min(len(message), rr)
+ self.S[ 0] ^= self.toLane(message, n, ww, 0)
+ self.S[ 5] ^= self.toLane(message, n, ww, ww)
+ self.S[10] ^= self.toLane(message, n, ww, 2 * ww)
+ self.S[15] ^= self.toLane(message, n, ww, 3 * ww)
+ self.S[20] ^= self.toLane(message, n, ww, 4 * ww)
+ self.S[ 1] ^= self.toLane(message, n, ww, 5 * ww)
+ self.S[ 6] ^= self.toLane(message, n, ww, 6 * ww)
+ self.S[11] ^= self.toLane(message, n, ww, 7 * ww)
+ self.S[16] ^= self.toLane(message, n, ww, 8 * ww)
+ self.S[21] ^= self.toLane(message, n, ww, 9 * ww)
+ self.S[ 2] ^= self.toLane(message, n, ww, 10 * ww)
+ self.S[ 7] ^= self.toLane(message, n, ww, 11 * ww)
+ self.S[12] ^= self.toLane(message, n, ww, 12 * ww)
+ self.S[17] ^= self.toLane(message, n, ww, 13 * ww)
+ self.S[22] ^= self.toLane(message, n, ww, 14 * ww)
+ self.S[ 3] ^= self.toLane(message, n, ww, 15 * ww)
+ self.S[ 8] ^= self.toLane(message, n, ww, 16 * ww)
+ self.S[13] ^= self.toLane(message, n, ww, 17 * ww)
+ self.S[18] ^= self.toLane(message, n, ww, 18 * ww)
+ self.S[23] ^= self.toLane(message, n, ww, 19 * ww)
+ self.S[ 4] ^= self.toLane(message, n, ww, 20 * ww)
+ self.S[ 9] ^= self.toLane(message, n, ww, 21 * ww)
+ self.S[14] ^= self.toLane(message, n, ww, 22 * ww)
+ self.S[19] ^= self.toLane(message, n, ww, 23 * ww)
+ self.S[24] ^= self.toLane(message, n, ww, 24 * ww)
self.keccakF(self.S)
+ message = message[rr:]
def digest(self, msg = None, msglen = None, withReturn = None):
@@ -478,62 +479,64 @@ class SHA3:
# Absorbing phase
if ww == 8:
for i in range(0, nnn, rr):
- self.S[ 0] ^= self.toLane64(message, rr, 0)
- self.S[ 5] ^= self.toLane64(message, rr, 8)
- self.S[10] ^= self.toLane64(message, rr, 16)
- self.S[15] ^= self.toLane64(message, rr, 24)
- self.S[20] ^= self.toLane64(message, rr, 32)
- self.S[ 1] ^= self.toLane64(message, rr, 40)
- self.S[ 6] ^= self.toLane64(message, rr, 48)
- self.S[11] ^= self.toLane64(message, rr, 56)
- self.S[16] ^= self.toLane64(message, rr, 64)
- self.S[21] ^= self.toLane64(message, rr, 72)
- self.S[ 2] ^= self.toLane64(message, rr, 80)
- self.S[ 7] ^= self.toLane64(message, rr, 88)
- self.S[12] ^= self.toLane64(message, rr, 96)
- self.S[17] ^= self.toLane64(message, rr, 104)
- self.S[22] ^= self.toLane64(message, rr, 112)
- self.S[ 3] ^= self.toLane64(message, rr, 120)
- self.S[ 8] ^= self.toLane64(message, rr, 128)
- self.S[13] ^= self.toLane64(message, rr, 136)
- self.S[18] ^= self.toLane64(message, rr, 144)
- self.S[23] ^= self.toLane64(message, rr, 152)
- self.S[ 4] ^= self.toLane64(message, rr, 160)
- self.S[ 9] ^= self.toLane64(message, rr, 168)
- self.S[14] ^= self.toLane64(message, rr, 176)
- self.S[19] ^= self.toLane64(message, rr, 184)
- self.S[24] ^= self.toLane64(message, rr, 192)
+ n = min(len(message), rr)
+ self.S[ 0] ^= self.toLane64(message, n, 0)
+ self.S[ 5] ^= self.toLane64(message, n, 8)
+ self.S[10] ^= self.toLane64(message, n, 16)
+ self.S[15] ^= self.toLane64(message, n, 24)
+ self.S[20] ^= self.toLane64(message, n, 32)
+ self.S[ 1] ^= self.toLane64(message, n, 40)
+ self.S[ 6] ^= self.toLane64(message, n, 48)
+ self.S[11] ^= self.toLane64(message, n, 56)
+ self.S[16] ^= self.toLane64(message, n, 64)
+ self.S[21] ^= self.toLane64(message, n, 72)
+ self.S[ 2] ^= self.toLane64(message, n, 80)
+ self.S[ 7] ^= self.toLane64(message, n, 88)
+ self.S[12] ^= self.toLane64(message, n, 96)
+ self.S[17] ^= self.toLane64(message, n, 104)
+ self.S[22] ^= self.toLane64(message, n, 112)
+ self.S[ 3] ^= self.toLane64(message, n, 120)
+ self.S[ 8] ^= self.toLane64(message, n, 128)
+ self.S[13] ^= self.toLane64(message, n, 136)
+ self.S[18] ^= self.toLane64(message, n, 144)
+ self.S[23] ^= self.toLane64(message, n, 152)
+ self.S[ 4] ^= self.toLane64(message, n, 160)
+ self.S[ 9] ^= self.toLane64(message, n, 168)
+ self.S[14] ^= self.toLane64(message, n, 176)
+ self.S[19] ^= self.toLane64(message, n, 184)
+ self.S[24] ^= self.toLane64(message, n, 192)
self.keccakF(self.S)
message = message[rr:]
else:
for i in range(0, nnn, rr):
- self.S[ 0] ^= self.toLane(message, rr, ww, 0)
- self.S[ 5] ^= self.toLane(message, rr, ww, ww)
- self.S[10] ^= self.toLane(message, rr, ww, 2 * ww)
- self.S[15] ^= self.toLane(message, rr, ww, 3 * ww)
- self.S[20] ^= self.toLane(message, rr, ww, 4 * ww)
- self.S[ 1] ^= self.toLane(message, rr, ww, 5 * ww)
- self.S[ 6] ^= self.toLane(message, rr, ww, 6 * ww)
- self.S[11] ^= self.toLane(message, rr, ww, 7 * ww)
- self.S[16] ^= self.toLane(message, rr, ww, 8 * ww)
- self.S[21] ^= self.toLane(message, rr, ww, 9 * ww)
- self.S[ 2] ^= self.toLane(message, rr, ww, 10 * ww)
- self.S[ 7] ^= self.toLane(message, rr, ww, 11 * ww)
- self.S[12] ^= self.toLane(message, rr, ww, 12 * ww)
- self.S[17] ^= self.toLane(message, rr, ww, 13 * ww)
- self.S[22] ^= self.toLane(message, rr, ww, 14 * ww)
- self.S[ 3] ^= self.toLane(message, rr, ww, 15 * ww)
- self.S[ 8] ^= self.toLane(message, rr, ww, 16 * ww)
- self.S[13] ^= self.toLane(message, rr, ww, 17 * ww)
- self.S[18] ^= self.toLane(message, rr, ww, 18 * ww)
- self.S[23] ^= self.toLane(message, rr, ww, 19 * ww)
- self.S[ 4] ^= self.toLane(message, rr, ww, 20 * ww)
- self.S[ 9] ^= self.toLane(message, rr, ww, 21 * ww)
- self.S[14] ^= self.toLane(message, rr, ww, 22 * ww)
- self.S[19] ^= self.toLane(message, rr, ww, 23 * ww)
- self.S[24] ^= self.toLane(message, rr, ww, 24 * ww)
- message = message[rr:]
+ n = min(len(message), rr)
+ self.S[ 0] ^= self.toLane(message, n, ww, 0)
+ self.S[ 5] ^= self.toLane(message, n, ww, ww)
+ self.S[10] ^= self.toLane(message, n, ww, 2 * ww)
+ self.S[15] ^= self.toLane(message, n, ww, 3 * ww)
+ self.S[20] ^= self.toLane(message, n, ww, 4 * ww)
+ self.S[ 1] ^= self.toLane(message, n, ww, 5 * ww)
+ self.S[ 6] ^= self.toLane(message, n, ww, 6 * ww)
+ self.S[11] ^= self.toLane(message, n, ww, 7 * ww)
+ self.S[16] ^= self.toLane(message, n, ww, 8 * ww)
+ self.S[21] ^= self.toLane(message, n, ww, 9 * ww)
+ self.S[ 2] ^= self.toLane(message, n, ww, 10 * ww)
+ self.S[ 7] ^= self.toLane(message, n, ww, 11 * ww)
+ self.S[12] ^= self.toLane(message, n, ww, 12 * ww)
+ self.S[17] ^= self.toLane(message, n, ww, 13 * ww)
+ self.S[22] ^= self.toLane(message, n, ww, 14 * ww)
+ self.S[ 3] ^= self.toLane(message, n, ww, 15 * ww)
+ self.S[ 8] ^= self.toLane(message, n, ww, 16 * ww)
+ self.S[13] ^= self.toLane(message, n, ww, 17 * ww)
+ self.S[18] ^= self.toLane(message, n, ww, 18 * ww)
+ self.S[23] ^= self.toLane(message, n, ww, 19 * ww)
+ self.S[ 4] ^= self.toLane(message, n, ww, 20 * ww)
+ self.S[ 9] ^= self.toLane(message, n, ww, 21 * ww)
+ self.S[14] ^= self.toLane(message, n, ww, 22 * ww)
+ self.S[19] ^= self.toLane(message, n, ww, 23 * ww)
+ self.S[24] ^= self.toLane(message, n, ww, 24 * ww)
self.keccakF(self.S)
+ message = message[rr:]
# Squeezing phase
if withReturn:
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-09-20 14:25:23 +0000