aboutsummaryrefslogtreecommitdiffstats
path: root/python3/sha3.py
diff options
context:
space:
mode:
Diffstat (limited to 'python3/sha3.py')
-rw-r--r--python3/sha3.py679
1 files changed, 337 insertions, 342 deletions
diff --git a/python3/sha3.py b/python3/sha3.py
index 340cf5f..a3483b2 100644
--- a/python3/sha3.py
+++ b/python3/sha3.py
@@ -27,53 +27,53 @@ class SHA3:
'''
- RC = [0x0000000000000001, 0x0000000000008082, 0x800000000000808A, 0x8000000080008000,
- 0x000000000000808B, 0x0000000080000001, 0x8000000080008081, 0x8000000000008009,
- 0x000000000000008A, 0x0000000000000088, 0x0000000080008009, 0x000000008000000A,
- 0x000000008000808B, 0x800000000000008B, 0x8000000000008089, 0x8000000000008003,
- 0x8000000000008002, 0x8000000000000080, 0x000000000000800A, 0x800000008000000A,
- 0x8000000080008081, 0x8000000000008080, 0x0000000080000001, 0x8000000080008008]
- '''
- :list<int> Round contants
- '''
-
- B = [0] * 25
- '''
- :list<int> Keccak-f round temporary
- '''
-
- C = [0] * 5
- '''
- :list<int> Keccak-f round temporary
- '''
-
-
- (r, c, n, b, w, wmod, l, nr) = (0, 0, 0, 0, 0, 0, 0, 0)
- '''
- r:int The bitrate
- c:int The capacity
- n:int The output size
- b:int The state size
- w:int The word size
- wmod:int The word mask
- l:int ℓ, the binary logarithm of the word size
- nr:int 12 + 2ℓ, the number of rounds
- '''
-
- S = None
- '''
- :list<int> The current state
- '''
-
- M = None
- '''
- :bytes Left over water to fill the sponge with at next update
- '''
+ def __init__(self):
+ self.RC = [0x0000000000000001, 0x0000000000008082, 0x800000000000808A, 0x8000000080008000,
+ 0x000000000000808B, 0x0000000080000001, 0x8000000080008081, 0x8000000000008009,
+ 0x000000000000008A, 0x0000000000000088, 0x0000000080008009, 0x000000008000000A,
+ 0x000000008000808B, 0x800000000000008B, 0x8000000000008089, 0x8000000000008003,
+ 0x8000000000008002, 0x8000000000000080, 0x000000000000800A, 0x800000008000000A,
+ 0x8000000080008081, 0x8000000000008080, 0x0000000080000001, 0x8000000080008008]
+ '''
+ :list<int> Round contants
+ '''
+
+ self.B = [0] * 25
+ '''
+ :list<int> Keccak-f round temporary
+ '''
+
+ self.C = [0] * 5
+ '''
+ :list<int> Keccak-f round temporary
+ '''
+
+
+ (self.r, self.c, self.n, self.b, self.w, self.wmod, self.l, self.nr) = (0, 0, 0, 0, 0, 0, 0, 0)
+ '''
+ r:int The bitrate
+ c:int The capacity
+ n:int The output size
+ b:int The state size
+ w:int The word size
+ wmod:int The word mask
+ l:int ℓ, the binary logarithm of the word size
+ nr:int 12 + 2ℓ, the number of rounds
+ '''
+
+ self.S = None
+ '''
+ :list<int> The current state
+ '''
+
+ self.M = None
+ '''
+ :bytes Left over water to fill the sponge with at next update
+ '''
- @staticmethod
- def rotate(x, n):
+ def rotate(self, x, n):
'''
Rotate a word
@@ -81,12 +81,12 @@ class SHA3:
@param n:int Rotation steps
@return :int The value rotated
'''
- m = n % SHA3.w
- return ((x >> (SHA3.w - m)) + (x << m)) & SHA3.wmod
+ m = n % self.w
+ return ((x >> (self.w - m)) + (x << m)) & self.wmod
@staticmethod
- def rotate64(x, n):
+ def rotate64(self, x, n):
'''
Rotate a 64-bit word
@@ -113,171 +113,169 @@ class SHA3:
return rc
- @staticmethod
- def keccakFRound(A, rc):
+ def keccakFRound(self, A, rc):
'''
Perform one round of computation
@param A:list<int> The current state
@param rc:int Round constant
'''
- if SHA3.w == 64:
+ if self.w == 64:
# θ step (step 1 and 2 of 3)
- SHA3.C[0] = (A[0] ^ A[1]) ^ (A[2] ^ A[3]) ^ A[4]
- SHA3.C[2] = (A[10] ^ A[11]) ^ (A[12] ^ A[13]) ^ A[14]
- db = SHA3.C[0] ^ SHA3.rotate64(SHA3.C[2], 1)
- SHA3.C[4] = (A[20] ^ A[21]) ^ (A[22] ^ A[23]) ^ A[24]
- dd = SHA3.C[2] ^ SHA3.rotate64(SHA3.C[4], 1)
- SHA3.C[1] = (A[5] ^ A[6]) ^ (A[7] ^ A[8]) ^ A[9]
- da = SHA3.C[4] ^ SHA3.rotate64(SHA3.C[1], 1)
- SHA3.C[3] = (A[15] ^ A[16]) ^ (A[17] ^ A[18]) ^ A[19]
- dc = SHA3.C[1] ^ SHA3.rotate64(SHA3.C[3], 1)
- de = SHA3.C[3] ^ SHA3.rotate64(SHA3.C[0], 1)
+ self.C[0] = (A[0] ^ A[1]) ^ (A[2] ^ A[3]) ^ A[4]
+ self.C[2] = (A[10] ^ A[11]) ^ (A[12] ^ A[13]) ^ A[14]
+ db = self.C[0] ^ SHA3.rotate64(self.C[2], 1)
+ self.C[4] = (A[20] ^ A[21]) ^ (A[22] ^ A[23]) ^ A[24]
+ dd = self.C[2] ^ SHA3.rotate64(self.C[4], 1)
+ self.C[1] = (A[5] ^ A[6]) ^ (A[7] ^ A[8]) ^ A[9]
+ da = self.C[4] ^ SHA3.rotate64(self.C[1], 1)
+ self.C[3] = (A[15] ^ A[16]) ^ (A[17] ^ A[18]) ^ A[19]
+ dc = self.C[1] ^ SHA3.rotate64(self.C[3], 1)
+ de = self.C[3] ^ SHA3.rotate64(self.C[0], 1)
# ρ and π steps, with last part of θ
- SHA3.B[0] = SHA3.rotate64(A[0] ^ da, 0)
- SHA3.B[1] = SHA3.rotate64(A[15] ^ dd, 28)
- SHA3.B[2] = SHA3.rotate64(A[5] ^ db, 1)
- SHA3.B[3] = SHA3.rotate64(A[20] ^ de, 27)
- SHA3.B[4] = SHA3.rotate64(A[10] ^ dc, 62)
+ self.B[0] = SHA3.rotate64(A[0] ^ da, 0)
+ self.B[1] = SHA3.rotate64(A[15] ^ dd, 28)
+ self.B[2] = SHA3.rotate64(A[5] ^ db, 1)
+ self.B[3] = SHA3.rotate64(A[20] ^ de, 27)
+ self.B[4] = SHA3.rotate64(A[10] ^ dc, 62)
- SHA3.B[5] = SHA3.rotate64(A[6] ^ db, 44)
- SHA3.B[6] = SHA3.rotate64(A[21] ^ de, 20)
- SHA3.B[7] = SHA3.rotate64(A[11] ^ dc, 6)
- SHA3.B[8] = SHA3.rotate64(A[1] ^ da, 36)
- SHA3.B[9] = SHA3.rotate64(A[16] ^ dd, 55)
+ self.B[5] = SHA3.rotate64(A[6] ^ db, 44)
+ self.B[6] = SHA3.rotate64(A[21] ^ de, 20)
+ self.B[7] = SHA3.rotate64(A[11] ^ dc, 6)
+ self.B[8] = SHA3.rotate64(A[1] ^ da, 36)
+ self.B[9] = SHA3.rotate64(A[16] ^ dd, 55)
- SHA3.B[10] = SHA3.rotate64(A[12] ^ dc, 43)
- SHA3.B[11] = SHA3.rotate64(A[2] ^ da, 3)
- SHA3.B[12] = SHA3.rotate64(A[17] ^ dd, 25)
- SHA3.B[13] = SHA3.rotate64(A[7] ^ db, 10)
- SHA3.B[14] = SHA3.rotate64(A[22] ^ de, 39)
+ self.B[10] = SHA3.rotate64(A[12] ^ dc, 43)
+ self.B[11] = SHA3.rotate64(A[2] ^ da, 3)
+ self.B[12] = SHA3.rotate64(A[17] ^ dd, 25)
+ self.B[13] = SHA3.rotate64(A[7] ^ db, 10)
+ self.B[14] = SHA3.rotate64(A[22] ^ de, 39)
- SHA3.B[15] = SHA3.rotate64(A[18] ^ dd, 21)
- SHA3.B[16] = SHA3.rotate64(A[8] ^ db, 45)
- SHA3.B[17] = SHA3.rotate64(A[23] ^ de, 8)
- SHA3.B[18] = SHA3.rotate64(A[13] ^ dc, 15)
- SHA3.B[19] = SHA3.rotate64(A[3] ^ da, 41)
+ self.B[15] = SHA3.rotate64(A[18] ^ dd, 21)
+ self.B[16] = SHA3.rotate64(A[8] ^ db, 45)
+ self.B[17] = SHA3.rotate64(A[23] ^ de, 8)
+ self.B[18] = SHA3.rotate64(A[13] ^ dc, 15)
+ self.B[19] = SHA3.rotate64(A[3] ^ da, 41)
- SHA3.B[20] = SHA3.rotate64(A[24] ^ de, 14)
- SHA3.B[21] = SHA3.rotate64(A[14] ^ dc, 61)
- SHA3.B[22] = SHA3.rotate64(A[4] ^ da, 18)
- SHA3.B[23] = SHA3.rotate64(A[19] ^ dd, 56)
- SHA3.B[24] = SHA3.rotate64(A[9] ^ db, 2)
+ self.B[20] = SHA3.rotate64(A[24] ^ de, 14)
+ self.B[21] = SHA3.rotate64(A[14] ^ dc, 61)
+ self.B[22] = SHA3.rotate64(A[4] ^ da, 18)
+ self.B[23] = SHA3.rotate64(A[19] ^ dd, 56)
+ self.B[24] = SHA3.rotate64(A[9] ^ db, 2)
else:
# θ step (step 1 and 2 of 3)
- SHA3.C[0] = (A[0] ^ A[1]) ^ (A[2] ^ A[3]) ^ A[4]
- SHA3.C[2] = (A[10] ^ A[11]) ^ (A[12] ^ A[13]) ^ A[14]
- db = SHA3.C[0] ^ SHA3.rotate(SHA3.C[2], 1)
- SHA3.C[4] = (A[20] ^ A[21]) ^ (A[22] ^ A[23]) ^ A[24]
- dd = SHA3.C[2] ^ SHA3.rotate(SHA3.C[4], 1)
- SHA3.C[1] = (A[5] ^ A[6]) ^ (A[7] ^ A[8]) ^ A[9]
- da = SHA3.C[4] ^ SHA3.rotate(SHA3.C[1], 1)
- SHA3.C[3] = (A[15] ^ A[16]) ^ (A[17] ^ A[18]) ^ A[19]
- dc = SHA3.C[1] ^ SHA3.rotate(SHA3.C[3], 1)
- de = SHA3.C[3] ^ SHA3.rotate(SHA3.C[0], 1)
+ self.C[0] = (A[0] ^ A[1]) ^ (A[2] ^ A[3]) ^ A[4]
+ self.C[2] = (A[10] ^ A[11]) ^ (A[12] ^ A[13]) ^ A[14]
+ db = self.C[0] ^ self.rotate(self.C[2], 1)
+ self.C[4] = (A[20] ^ A[21]) ^ (A[22] ^ A[23]) ^ A[24]
+ dd = self.C[2] ^ self.rotate(self.C[4], 1)
+ self.C[1] = (A[5] ^ A[6]) ^ (A[7] ^ A[8]) ^ A[9]
+ da = self.C[4] ^ self.rotate(self.C[1], 1)
+ self.C[3] = (A[15] ^ A[16]) ^ (A[17] ^ A[18]) ^ A[19]
+ dc = self.C[1] ^ self.rotate(self.C[3], 1)
+ de = self.C[3] ^ self.rotate(self.C[0], 1)
# ρ and π steps, with last part of θ
- SHA3.B[0] = SHA3.rotate(A[0] ^ da, 0)
- SHA3.B[1] = SHA3.rotate(A[15] ^ dd, 28)
- SHA3.B[2] = SHA3.rotate(A[5] ^ db, 1)
- SHA3.B[3] = SHA3.rotate(A[20] ^ de, 27)
- SHA3.B[4] = SHA3.rotate(A[10] ^ dc, 62)
+ self.B[0] = self.rotate(A[0] ^ da, 0)
+ self.B[1] = self.rotate(A[15] ^ dd, 28)
+ self.B[2] = self.rotate(A[5] ^ db, 1)
+ self.B[3] = self.rotate(A[20] ^ de, 27)
+ self.B[4] = self.rotate(A[10] ^ dc, 62)
- SHA3.B[5] = SHA3.rotate(A[6] ^ db, 44)
- SHA3.B[6] = SHA3.rotate(A[21] ^ de, 20)
- SHA3.B[7] = SHA3.rotate(A[11] ^ dc, 6)
- SHA3.B[8] = SHA3.rotate(A[1] ^ da, 36)
- SHA3.B[9] = SHA3.rotate(A[16] ^ dd, 55)
+ self.B[5] = self.rotate(A[6] ^ db, 44)
+ self.B[6] = self.rotate(A[21] ^ de, 20)
+ self.B[7] = self.rotate(A[11] ^ dc, 6)
+ self.B[8] = self.rotate(A[1] ^ da, 36)
+ self.B[9] = self.rotate(A[16] ^ dd, 55)
- SHA3.B[10] = SHA3.rotate(A[12] ^ dc, 43)
- SHA3.B[11] = SHA3.rotate(A[2] ^ da, 3)
- SHA3.B[12] = SHA3.rotate(A[17] ^ dd, 25)
- SHA3.B[13] = SHA3.rotate(A[7] ^ db, 10)
- SHA3.B[14] = SHA3.rotate(A[22] ^ de, 39)
+ self.B[10] = self.rotate(A[12] ^ dc, 43)
+ self.B[11] = self.rotate(A[2] ^ da, 3)
+ self.B[12] = self.rotate(A[17] ^ dd, 25)
+ self.B[13] = self.rotate(A[7] ^ db, 10)
+ self.B[14] = self.rotate(A[22] ^ de, 39)
- SHA3.B[15] = SHA3.rotate(A[18] ^ dd, 21)
- SHA3.B[16] = SHA3.rotate(A[8] ^ db, 45)
- SHA3.B[17] = SHA3.rotate(A[23] ^ de, 8)
- SHA3.B[18] = SHA3.rotate(A[13] ^ dc, 15)
- SHA3.B[19] = SHA3.rotate(A[3] ^ da, 41)
+ self.B[15] = self.rotate(A[18] ^ dd, 21)
+ self.B[16] = self.rotate(A[8] ^ db, 45)
+ self.B[17] = self.rotate(A[23] ^ de, 8)
+ self.B[18] = self.rotate(A[13] ^ dc, 15)
+ self.B[19] = self.rotate(A[3] ^ da, 41)
- SHA3.B[20] = SHA3.rotate(A[24] ^ de, 14)
- SHA3.B[21] = SHA3.rotate(A[14] ^ dc, 61)
- SHA3.B[22] = SHA3.rotate(A[4] ^ da, 18)
- SHA3.B[23] = SHA3.rotate(A[19] ^ dd, 56)
- SHA3.B[24] = SHA3.rotate(A[9] ^ db, 2)
+ self.B[20] = self.rotate(A[24] ^ de, 14)
+ self.B[21] = self.rotate(A[14] ^ dc, 61)
+ self.B[22] = self.rotate(A[4] ^ da, 18)
+ self.B[23] = self.rotate(A[19] ^ dd, 56)
+ self.B[24] = self.rotate(A[9] ^ db, 2)
# ξ step
- A[0] = SHA3.B[0] ^ ((~(SHA3.B[5])) & SHA3.B[10])
- A[1] = SHA3.B[1] ^ ((~(SHA3.B[6])) & SHA3.B[11])
- A[2] = SHA3.B[2] ^ ((~(SHA3.B[7])) & SHA3.B[12])
- A[3] = SHA3.B[3] ^ ((~(SHA3.B[8])) & SHA3.B[13])
- A[4] = SHA3.B[4] ^ ((~(SHA3.B[9])) & SHA3.B[14])
-
- A[5] = SHA3.B[5] ^ ((~(SHA3.B[10])) & SHA3.B[15])
- A[6] = SHA3.B[6] ^ ((~(SHA3.B[11])) & SHA3.B[16])
- A[7] = SHA3.B[7] ^ ((~(SHA3.B[12])) & SHA3.B[17])
- A[8] = SHA3.B[8] ^ ((~(SHA3.B[13])) & SHA3.B[18])
- A[9] = SHA3.B[9] ^ ((~(SHA3.B[14])) & SHA3.B[19])
-
- A[10] = SHA3.B[10] ^ ((~(SHA3.B[15])) & SHA3.B[20])
- A[11] = SHA3.B[11] ^ ((~(SHA3.B[16])) & SHA3.B[21])
- A[12] = SHA3.B[12] ^ ((~(SHA3.B[17])) & SHA3.B[22])
- A[13] = SHA3.B[13] ^ ((~(SHA3.B[18])) & SHA3.B[23])
- A[14] = SHA3.B[14] ^ ((~(SHA3.B[19])) & SHA3.B[24])
-
- A[15] = SHA3.B[15] ^ ((~(SHA3.B[20])) & SHA3.B[0])
- A[16] = SHA3.B[16] ^ ((~(SHA3.B[21])) & SHA3.B[1])
- A[17] = SHA3.B[17] ^ ((~(SHA3.B[22])) & SHA3.B[2])
- A[18] = SHA3.B[18] ^ ((~(SHA3.B[23])) & SHA3.B[3])
- A[19] = SHA3.B[19] ^ ((~(SHA3.B[24])) & SHA3.B[4])
-
- A[20] = SHA3.B[20] ^ ((~(SHA3.B[0])) & SHA3.B[5])
- A[21] = SHA3.B[21] ^ ((~(SHA3.B[1])) & SHA3.B[6])
- A[22] = SHA3.B[22] ^ ((~(SHA3.B[2])) & SHA3.B[7])
- A[23] = SHA3.B[23] ^ ((~(SHA3.B[3])) & SHA3.B[8])
- A[24] = SHA3.B[24] ^ ((~(SHA3.B[4])) & SHA3.B[9])
+ A[0] = self.B[0] ^ ((~(self.B[5])) & self.B[10])
+ A[1] = self.B[1] ^ ((~(self.B[6])) & self.B[11])
+ A[2] = self.B[2] ^ ((~(self.B[7])) & self.B[12])
+ A[3] = self.B[3] ^ ((~(self.B[8])) & self.B[13])
+ A[4] = self.B[4] ^ ((~(self.B[9])) & self.B[14])
+
+ A[5] = self.B[5] ^ ((~(self.B[10])) & self.B[15])
+ A[6] = self.B[6] ^ ((~(self.B[11])) & self.B[16])
+ A[7] = self.B[7] ^ ((~(self.B[12])) & self.B[17])
+ A[8] = self.B[8] ^ ((~(self.B[13])) & self.B[18])
+ A[9] = self.B[9] ^ ((~(self.B[14])) & self.B[19])
+
+ A[10] = self.B[10] ^ ((~(self.B[15])) & self.B[20])
+ A[11] = self.B[11] ^ ((~(self.B[16])) & self.B[21])
+ A[12] = self.B[12] ^ ((~(self.B[17])) & self.B[22])
+ A[13] = self.B[13] ^ ((~(self.B[18])) & self.B[23])
+ A[14] = self.B[14] ^ ((~(self.B[19])) & self.B[24])
+
+ A[15] = self.B[15] ^ ((~(self.B[20])) & self.B[0])
+ A[16] = self.B[16] ^ ((~(self.B[21])) & self.B[1])
+ A[17] = self.B[17] ^ ((~(self.B[22])) & self.B[2])
+ A[18] = self.B[18] ^ ((~(self.B[23])) & self.B[3])
+ A[19] = self.B[19] ^ ((~(self.B[24])) & self.B[4])
+
+ A[20] = self.B[20] ^ ((~(self.B[0])) & self.B[5])
+ A[21] = self.B[21] ^ ((~(self.B[1])) & self.B[6])
+ A[22] = self.B[22] ^ ((~(self.B[2])) & self.B[7])
+ A[23] = self.B[23] ^ ((~(self.B[3])) & self.B[8])
+ A[24] = self.B[24] ^ ((~(self.B[4])) & self.B[9])
# ι step
A[0] ^= rc
- @staticmethod
- def keccakF(A):
+ def keccakF(self, A):
'''
Perform Keccak-f function
@param A:list<int> The current state
'''
- if (SHA3.nr == 24):
- SHA3.keccakFRound(A, 0x0000000000000001)
- SHA3.keccakFRound(A, 0x0000000000008082)
- SHA3.keccakFRound(A, 0x800000000000808A)
- SHA3.keccakFRound(A, 0x8000000080008000)
- SHA3.keccakFRound(A, 0x000000000000808B)
- SHA3.keccakFRound(A, 0x0000000080000001)
- SHA3.keccakFRound(A, 0x8000000080008081)
- SHA3.keccakFRound(A, 0x8000000000008009)
- SHA3.keccakFRound(A, 0x000000000000008A)
- SHA3.keccakFRound(A, 0x0000000000000088)
- SHA3.keccakFRound(A, 0x0000000080008009)
- SHA3.keccakFRound(A, 0x000000008000000A)
- SHA3.keccakFRound(A, 0x000000008000808B)
- SHA3.keccakFRound(A, 0x800000000000008B)
- SHA3.keccakFRound(A, 0x8000000000008089)
- SHA3.keccakFRound(A, 0x8000000000008003)
- SHA3.keccakFRound(A, 0x8000000000008002)
- SHA3.keccakFRound(A, 0x8000000000000080)
- SHA3.keccakFRound(A, 0x000000000000800A)
- SHA3.keccakFRound(A, 0x800000008000000A)
- SHA3.keccakFRound(A, 0x8000000080008081)
- SHA3.keccakFRound(A, 0x8000000000008080)
- SHA3.keccakFRound(A, 0x0000000080000001)
- SHA3.keccakFRound(A, 0x8000000080008008)
+ if (self.nr == 24):
+ self.keccakFRound(A, 0x0000000000000001)
+ self.keccakFRound(A, 0x0000000000008082)
+ self.keccakFRound(A, 0x800000000000808A)
+ self.keccakFRound(A, 0x8000000080008000)
+ self.keccakFRound(A, 0x000000000000808B)
+ self.keccakFRound(A, 0x0000000080000001)
+ self.keccakFRound(A, 0x8000000080008081)
+ self.keccakFRound(A, 0x8000000000008009)
+ self.keccakFRound(A, 0x000000000000008A)
+ self.keccakFRound(A, 0x0000000000000088)
+ self.keccakFRound(A, 0x0000000080008009)
+ self.keccakFRound(A, 0x000000008000000A)
+ self.keccakFRound(A, 0x000000008000808B)
+ self.keccakFRound(A, 0x800000000000008B)
+ self.keccakFRound(A, 0x8000000000008089)
+ self.keccakFRound(A, 0x8000000000008003)
+ self.keccakFRound(A, 0x8000000000008002)
+ self.keccakFRound(A, 0x8000000000000080)
+ self.keccakFRound(A, 0x000000000000800A)
+ self.keccakFRound(A, 0x800000008000000A)
+ self.keccakFRound(A, 0x8000000080008081)
+ self.keccakFRound(A, 0x8000000000008080)
+ self.keccakFRound(A, 0x0000000080000001)
+ self.keccakFRound(A, 0x8000000080008008)
else:
- for i in range(SHA3.nr):
- SHA3.keccakFRound(A, SHA3.RC[i] & SHA3.wmod)
+ for i in range(self.nr):
+ self.keccakFRound(A, self.RC[i] & self.wmod)
@staticmethod
@@ -346,8 +344,7 @@ class SHA3:
return msg[:nrf] + bytes(message)
- @staticmethod
- def initialise(r, c, n):
+ def initialise(self, r, c, n):
'''
Initialise Keccak sponge
@@ -355,20 +352,19 @@ class SHA3:
@param c:int The capacity
@param n:int The output size
'''
- SHA3.r = r
- SHA3.c = c
- SHA3.n = n
- SHA3.b = r + c
- SHA3.w = SHA3.b // 25
- SHA3.l = SHA3.lb(SHA3.w)
- SHA3.nr = 12 + (SHA3.l << 1)
- SHA3.wmod = (1 << SHA3.w) - 1
- SHA3.S = [0] * 25
- SHA3.M = bytes([])
-
-
- @staticmethod
- def update(msg, msglen = None):
+ self.r = r
+ self.c = c
+ self.n = n
+ self.b = r + c
+ self.w = self.b // 25
+ self.l = self.lb(self.w)
+ self.nr = 12 + (self.l << 1)
+ self.wmod = (1 << self.w) - 1
+ self.S = [0] * 25
+ self.M = bytes([])
+
+
+ def update(self, msg, msglen = None):
'''
Absorb the more of the message message to the Keccak sponge
@@ -378,78 +374,77 @@ class SHA3:
if msglen is not None:
msg = msg[:msglen]
- rr = SHA3.r >> 3
- ww = SHA3.w >> 3
+ rr = self.r >> 3
+ ww = self.w >> 3
- SHA3.M += msg
- nnn = len(SHA3.M)
- nnn -= nnn % ((SHA3.r * SHA3.b) >> 3)
- message = SHA3.M[:nnn]
- SHA3.M = SHA3.M[nnn:]
+ self.M += msg
+ nnn = len(self.M)
+ nnn -= nnn % ((self.r * self.b) >> 3)
+ message = self.M[:nnn]
+ self.M = self.M[nnn:]
# Absorbing phase
if ww == 8:
for i in range(0, nnn, rr):
- SHA3.S[ 0] ^= SHA3.toLane64(message, rr, 0)
- SHA3.S[ 5] ^= SHA3.toLane64(message, rr, 8)
- SHA3.S[10] ^= SHA3.toLane64(message, rr, 16)
- SHA3.S[15] ^= SHA3.toLane64(message, rr, 24)
- SHA3.S[20] ^= SHA3.toLane64(message, rr, 32)
- SHA3.S[ 1] ^= SHA3.toLane64(message, rr, 40)
- SHA3.S[ 6] ^= SHA3.toLane64(message, rr, 48)
- SHA3.S[11] ^= SHA3.toLane64(message, rr, 56)
- SHA3.S[16] ^= SHA3.toLane64(message, rr, 64)
- SHA3.S[21] ^= SHA3.toLane64(message, rr, 72)
- SHA3.S[ 2] ^= SHA3.toLane64(message, rr, 80)
- SHA3.S[ 7] ^= SHA3.toLane64(message, rr, 88)
- SHA3.S[12] ^= SHA3.toLane64(message, rr, 96)
- SHA3.S[17] ^= SHA3.toLane64(message, rr, 104)
- SHA3.S[22] ^= SHA3.toLane64(message, rr, 112)
- SHA3.S[ 3] ^= SHA3.toLane64(message, rr, 120)
- SHA3.S[ 8] ^= SHA3.toLane64(message, rr, 128)
- SHA3.S[13] ^= SHA3.toLane64(message, rr, 136)
- SHA3.S[18] ^= SHA3.toLane64(message, rr, 144)
- SHA3.S[23] ^= SHA3.toLane64(message, rr, 152)
- SHA3.S[ 4] ^= SHA3.toLane64(message, rr, 160)
- SHA3.S[ 9] ^= SHA3.toLane64(message, rr, 168)
- SHA3.S[14] ^= SHA3.toLane64(message, rr, 176)
- SHA3.S[19] ^= SHA3.toLane64(message, rr, 184)
- SHA3.S[24] ^= SHA3.toLane64(message, rr, 192)
- SHA3.keccakF(SHA3.S)
+ self.S[ 0] ^= SHA3.toLane64(message, rr, 0)
+ self.S[ 5] ^= SHA3.toLane64(message, rr, 8)
+ self.S[10] ^= SHA3.toLane64(message, rr, 16)
+ self.S[15] ^= SHA3.toLane64(message, rr, 24)
+ self.S[20] ^= SHA3.toLane64(message, rr, 32)
+ self.S[ 1] ^= SHA3.toLane64(message, rr, 40)
+ self.S[ 6] ^= SHA3.toLane64(message, rr, 48)
+ self.S[11] ^= SHA3.toLane64(message, rr, 56)
+ self.S[16] ^= SHA3.toLane64(message, rr, 64)
+ self.S[21] ^= SHA3.toLane64(message, rr, 72)
+ self.S[ 2] ^= SHA3.toLane64(message, rr, 80)
+ self.S[ 7] ^= SHA3.toLane64(message, rr, 88)
+ self.S[12] ^= SHA3.toLane64(message, rr, 96)
+ self.S[17] ^= SHA3.toLane64(message, rr, 104)
+ self.S[22] ^= SHA3.toLane64(message, rr, 112)
+ self.S[ 3] ^= SHA3.toLane64(message, rr, 120)
+ self.S[ 8] ^= SHA3.toLane64(message, rr, 128)
+ self.S[13] ^= SHA3.toLane64(message, rr, 136)
+ self.S[18] ^= SHA3.toLane64(message, rr, 144)
+ self.S[23] ^= SHA3.toLane64(message, rr, 152)
+ self.S[ 4] ^= SHA3.toLane64(message, rr, 160)
+ self.S[ 9] ^= SHA3.toLane64(message, rr, 168)
+ self.S[14] ^= SHA3.toLane64(message, rr, 176)
+ self.S[19] ^= SHA3.toLane64(message, rr, 184)
+ self.S[24] ^= SHA3.toLane64(message, rr, 192)
+ self.keccakF(self.S)
message = message[rr:]
else:
for i in range(0, nnn, rr):
- SHA3.S[ 0] ^= SHA3.toLane(message, rr, ww, 0)
- SHA3.S[ 5] ^= SHA3.toLane(message, rr, ww, ww)
- SHA3.S[10] ^= SHA3.toLane(message, rr, ww, 2 * ww)
- SHA3.S[15] ^= SHA3.toLane(message, rr, ww, 3 * ww)
- SHA3.S[20] ^= SHA3.toLane(message, rr, ww, 4 * ww)
- SHA3.S[ 1] ^= SHA3.toLane(message, rr, ww, 5 * ww)
- SHA3.S[ 6] ^= SHA3.toLane(message, rr, ww, 6 * ww)
- SHA3.S[11] ^= SHA3.toLane(message, rr, ww, 7 * ww)
- SHA3.S[16] ^= SHA3.toLane(message, rr, ww, 8 * ww)
- SHA3.S[21] ^= SHA3.toLane(message, rr, ww, 9 * ww)
- SHA3.S[ 2] ^= SHA3.toLane(message, rr, ww, 10 * ww)
- SHA3.S[ 7] ^= SHA3.toLane(message, rr, ww, 11 * ww)
- SHA3.S[12] ^= SHA3.toLane(message, rr, ww, 12 * ww)
- SHA3.S[17] ^= SHA3.toLane(message, rr, ww, 13 * ww)
- SHA3.S[22] ^= SHA3.toLane(message, rr, ww, 14 * ww)
- SHA3.S[ 3] ^= SHA3.toLane(message, rr, ww, 15 * ww)
- SHA3.S[ 8] ^= SHA3.toLane(message, rr, ww, 16 * ww)
- SHA3.S[13] ^= SHA3.toLane(message, rr, ww, 17 * ww)
- SHA3.S[18] ^= SHA3.toLane(message, rr, ww, 18 * ww)
- SHA3.S[23] ^= SHA3.toLane(message, rr, ww, 19 * ww)
- SHA3.S[ 4] ^= SHA3.toLane(message, rr, ww, 20 * ww)
- SHA3.S[ 9] ^= SHA3.toLane(message, rr, ww, 21 * ww)
- SHA3.S[14] ^= SHA3.toLane(message, rr, ww, 22 * ww)
- SHA3.S[19] ^= SHA3.toLane(message, rr, ww, 23 * ww)
- SHA3.S[24] ^= SHA3.toLane(message, rr, ww, 24 * ww)
+ self.S[ 0] ^= SHA3.toLane(message, rr, ww, 0)
+ self.S[ 5] ^= SHA3.toLane(message, rr, ww, ww)
+ self.S[10] ^= SHA3.toLane(message, rr, ww, 2 * ww)
+ self.S[15] ^= SHA3.toLane(message, rr, ww, 3 * ww)
+ self.S[20] ^= SHA3.toLane(message, rr, ww, 4 * ww)
+ self.S[ 1] ^= SHA3.toLane(message, rr, ww, 5 * ww)
+ self.S[ 6] ^= SHA3.toLane(message, rr, ww, 6 * ww)
+ self.S[11] ^= SHA3.toLane(message, rr, ww, 7 * ww)
+ self.S[16] ^= SHA3.toLane(message, rr, ww, 8 * ww)
+ self.S[21] ^= SHA3.toLane(message, rr, ww, 9 * ww)
+ self.S[ 2] ^= SHA3.toLane(message, rr, ww, 10 * ww)
+ self.S[ 7] ^= SHA3.toLane(message, rr, ww, 11 * ww)
+ self.S[12] ^= SHA3.toLane(message, rr, ww, 12 * ww)
+ self.S[17] ^= SHA3.toLane(message, rr, ww, 13 * ww)
+ self.S[22] ^= SHA3.toLane(message, rr, ww, 14 * ww)
+ self.S[ 3] ^= SHA3.toLane(message, rr, ww, 15 * ww)
+ self.S[ 8] ^= SHA3.toLane(message, rr, ww, 16 * ww)
+ self.S[13] ^= SHA3.toLane(message, rr, ww, 17 * ww)
+ self.S[18] ^= SHA3.toLane(message, rr, ww, 18 * ww)
+ self.S[23] ^= SHA3.toLane(message, rr, ww, 19 * ww)
+ self.S[ 4] ^= SHA3.toLane(message, rr, ww, 20 * ww)
+ self.S[ 9] ^= SHA3.toLane(message, rr, ww, 21 * ww)
+ self.S[14] ^= SHA3.toLane(message, rr, ww, 22 * ww)
+ self.S[19] ^= SHA3.toLane(message, rr, ww, 23 * ww)
+ self.S[24] ^= SHA3.toLane(message, rr, ww, 24 * ww)
message = message[rr:]
- SHA3.keccakF(SHA3.S)
+ self.keccakF(self.S)
- @staticmethod
- def digest(msg = None, msglen = None, withReturn = None):
+ def digest(self, msg = None, msglen = None, withReturn = None):
'''
Absorb the last part of the message and squeeze the Keccak sponge
@@ -466,86 +461,86 @@ class SHA3:
msg = bytes([])
elif msglen is not None:
msg = msg[:msglen]
- message = SHA3.pad10star1(SHA3.M + msg, SHA3.r)
- SHA3.M = None
+ message = self.pad10star1(self.M + msg, self.r)
+ self.M = None
nnn = len(message)
- rr = SHA3.r >> 3
- nn = (SHA3.n + 7) >> 3
- ww = SHA3.w >> 3
+ rr = self.r >> 3
+ nn = (self.n + 7) >> 3
+ ww = self.w >> 3
# Absorbing phase
if ww == 8:
for i in range(0, nnn, rr):
- SHA3.S[ 0] ^= SHA3.toLane64(message, rr, 0)
- SHA3.S[ 5] ^= SHA3.toLane64(message, rr, 8)
- SHA3.S[10] ^= SHA3.toLane64(message, rr, 16)
- SHA3.S[15] ^= SHA3.toLane64(message, rr, 24)
- SHA3.S[20] ^= SHA3.toLane64(message, rr, 32)
- SHA3.S[ 1] ^= SHA3.toLane64(message, rr, 40)
- SHA3.S[ 6] ^= SHA3.toLane64(message, rr, 48)
- SHA3.S[11] ^= SHA3.toLane64(message, rr, 56)
- SHA3.S[16] ^= SHA3.toLane64(message, rr, 64)
- SHA3.S[21] ^= SHA3.toLane64(message, rr, 72)
- SHA3.S[ 2] ^= SHA3.toLane64(message, rr, 80)
- SHA3.S[ 7] ^= SHA3.toLane64(message, rr, 88)
- SHA3.S[12] ^= SHA3.toLane64(message, rr, 96)
- SHA3.S[17] ^= SHA3.toLane64(message, rr, 104)
- SHA3.S[22] ^= SHA3.toLane64(message, rr, 112)
- SHA3.S[ 3] ^= SHA3.toLane64(message, rr, 120)
- SHA3.S[ 8] ^= SHA3.toLane64(message, rr, 128)
- SHA3.S[13] ^= SHA3.toLane64(message, rr, 136)
- SHA3.S[18] ^= SHA3.toLane64(message, rr, 144)
- SHA3.S[23] ^= SHA3.toLane64(message, rr, 152)
- SHA3.S[ 4] ^= SHA3.toLane64(message, rr, 160)
- SHA3.S[ 9] ^= SHA3.toLane64(message, rr, 168)
- SHA3.S[14] ^= SHA3.toLane64(message, rr, 176)
- SHA3.S[19] ^= SHA3.toLane64(message, rr, 184)
- SHA3.S[24] ^= SHA3.toLane64(message, rr, 192)
- SHA3.keccakF(SHA3.S)
+ self.S[ 0] ^= SHA3.toLane64(message, rr, 0)
+ self.S[ 5] ^= SHA3.toLane64(message, rr, 8)
+ self.S[10] ^= SHA3.toLane64(message, rr, 16)
+ self.S[15] ^= SHA3.toLane64(message, rr, 24)
+ self.S[20] ^= SHA3.toLane64(message, rr, 32)
+ self.S[ 1] ^= SHA3.toLane64(message, rr, 40)
+ self.S[ 6] ^= SHA3.toLane64(message, rr, 48)
+ self.S[11] ^= SHA3.toLane64(message, rr, 56)
+ self.S[16] ^= SHA3.toLane64(message, rr, 64)
+ self.S[21] ^= SHA3.toLane64(message, rr, 72)
+ self.S[ 2] ^= SHA3.toLane64(message, rr, 80)
+ self.S[ 7] ^= SHA3.toLane64(message, rr, 88)
+ self.S[12] ^= SHA3.toLane64(message, rr, 96)
+ self.S[17] ^= SHA3.toLane64(message, rr, 104)
+ self.S[22] ^= SHA3.toLane64(message, rr, 112)
+ self.S[ 3] ^= SHA3.toLane64(message, rr, 120)
+ self.S[ 8] ^= SHA3.toLane64(message, rr, 128)
+ self.S[13] ^= SHA3.toLane64(message, rr, 136)
+ self.S[18] ^= SHA3.toLane64(message, rr, 144)
+ self.S[23] ^= SHA3.toLane64(message, rr, 152)
+ self.S[ 4] ^= SHA3.toLane64(message, rr, 160)
+ self.S[ 9] ^= SHA3.toLane64(message, rr, 168)
+ self.S[14] ^= SHA3.toLane64(message, rr, 176)
+ self.S[19] ^= SHA3.toLane64(message, rr, 184)
+ self.S[24] ^= SHA3.toLane64(message, rr, 192)
+ self.keccakF(self.S)
message = message[rr:]
else:
for i in range(0, nnn, rr):
- SHA3.S[ 0] ^= SHA3.toLane(message, rr, ww, 0)
- SHA3.S[ 5] ^= SHA3.toLane(message, rr, ww, ww)
- SHA3.S[10] ^= SHA3.toLane(message, rr, ww, 2 * ww)
- SHA3.S[15] ^= SHA3.toLane(message, rr, ww, 3 * ww)
- SHA3.S[20] ^= SHA3.toLane(message, rr, ww, 4 * ww)
- SHA3.S[ 1] ^= SHA3.toLane(message, rr, ww, 5 * ww)
- SHA3.S[ 6] ^= SHA3.toLane(message, rr, ww, 6 * ww)
- SHA3.S[11] ^= SHA3.toLane(message, rr, ww, 7 * ww)
- SHA3.S[16] ^= SHA3.toLane(message, rr, ww, 8 * ww)
- SHA3.S[21] ^= SHA3.toLane(message, rr, ww, 9 * ww)
- SHA3.S[ 2] ^= SHA3.toLane(message, rr, ww, 10 * ww)
- SHA3.S[ 7] ^= SHA3.toLane(message, rr, ww, 11 * ww)
- SHA3.S[12] ^= SHA3.toLane(message, rr, ww, 12 * ww)
- SHA3.S[17] ^= SHA3.toLane(message, rr, ww, 13 * ww)
- SHA3.S[22] ^= SHA3.toLane(message, rr, ww, 14 * ww)
- SHA3.S[ 3] ^= SHA3.toLane(message, rr, ww, 15 * ww)
- SHA3.S[ 8] ^= SHA3.toLane(message, rr, ww, 16 * ww)
- SHA3.S[13] ^= SHA3.toLane(message, rr, ww, 17 * ww)
- SHA3.S[18] ^= SHA3.toLane(message, rr, ww, 18 * ww)
- SHA3.S[23] ^= SHA3.toLane(message, rr, ww, 19 * ww)
- SHA3.S[ 4] ^= SHA3.toLane(message, rr, ww, 20 * ww)
- SHA3.S[ 9] ^= SHA3.toLane(message, rr, ww, 21 * ww)
- SHA3.S[14] ^= SHA3.toLane(message, rr, ww, 22 * ww)
- SHA3.S[19] ^= SHA3.toLane(message, rr, ww, 23 * ww)
- SHA3.S[24] ^= SHA3.toLane(message, rr, ww, 24 * ww)
+ self.S[ 0] ^= SHA3.toLane(message, rr, ww, 0)
+ self.S[ 5] ^= SHA3.toLane(message, rr, ww, ww)
+ self.S[10] ^= SHA3.toLane(message, rr, ww, 2 * ww)
+ self.S[15] ^= SHA3.toLane(message, rr, ww, 3 * ww)
+ self.S[20] ^= SHA3.toLane(message, rr, ww, 4 * ww)
+ self.S[ 1] ^= SHA3.toLane(message, rr, ww, 5 * ww)
+ self.S[ 6] ^= SHA3.toLane(message, rr, ww, 6 * ww)
+ self.S[11] ^= SHA3.toLane(message, rr, ww, 7 * ww)
+ self.S[16] ^= SHA3.toLane(message, rr, ww, 8 * ww)
+ self.S[21] ^= SHA3.toLane(message, rr, ww, 9 * ww)
+ self.S[ 2] ^= SHA3.toLane(message, rr, ww, 10 * ww)
+ self.S[ 7] ^= SHA3.toLane(message, rr, ww, 11 * ww)
+ self.S[12] ^= SHA3.toLane(message, rr, ww, 12 * ww)
+ self.S[17] ^= SHA3.toLane(message, rr, ww, 13 * ww)
+ self.S[22] ^= SHA3.toLane(message, rr, ww, 14 * ww)
+ self.S[ 3] ^= SHA3.toLane(message, rr, ww, 15 * ww)
+ self.S[ 8] ^= SHA3.toLane(message, rr, ww, 16 * ww)
+ self.S[13] ^= SHA3.toLane(message, rr, ww, 17 * ww)
+ self.S[18] ^= SHA3.toLane(message, rr, ww, 18 * ww)
+ self.S[23] ^= SHA3.toLane(message, rr, ww, 19 * ww)
+ self.S[ 4] ^= SHA3.toLane(message, rr, ww, 20 * ww)
+ self.S[ 9] ^= SHA3.toLane(message, rr, ww, 21 * ww)
+ self.S[14] ^= SHA3.toLane(message, rr, ww, 22 * ww)
+ self.S[19] ^= SHA3.toLane(message, rr, ww, 23 * ww)
+ self.S[24] ^= SHA3.toLane(message, rr, ww, 24 * ww)
message = message[rr:]
- SHA3.keccakF(SHA3.S)
+ self.keccakF(self.S)
# Squeezing phase
if withReturn:
- rc = [0] * ((SHA3.n + 7) >> 3)
+ rc = [0] * ((self.n + 7) >> 3)
ptr = 0
- olen = SHA3.n
+ olen = self.n
j = 0
ni = min(25, rr)
while olen > 0:
i = 0
while (i < ni) and (j < nn):
- v = SHA3.S[(i % 5) * 5 + i // 5]
+ v = self.S[(i % 5) * 5 + i // 5]
for _ in range(ww):
if j < nn:
rc[ptr] = v & 255
@@ -553,65 +548,65 @@ class SHA3:
v >>= 8
j += 1
i += 1
- olen -= SHA3.r
+ olen -= self.r
if olen > 0:
- SHA3.keccakF(SHA3.S)
- if (SHA3.n & 7) != 0:
- rc[len(rc) - 1] &= (1 << (SHA3.n & 7)) - 1
+ self.keccakF(self.S)
+ if (self.n & 7) != 0:
+ rc[len(rc) - 1] &= (1 << (self.n & 7)) - 1
return bytes(rc)
- olen = SHA3.n
- while olen > SHA3.r:
- olen -= SHA3.r
- SHA3.keccakF(SHA3.S)
+ olen = self.n
+ while olen > self.r:
+ olen -= self.r
+ self.keccakF(self.S)
return None
- def simpleSqueeze(times = 1):
+ def simpleSqueeze(self, times = 1):
'''
Force some rounds of Keccak-f
@param times:int The number of rounds
'''
for i in range(times):
- SHA3.keccakF(SHA3.S)
+ self.keccakF(self.S)
- def fastSqueeze(times = 1):
+ def fastSqueeze(self, times = 1):
'''
Squeeze as much as is needed to get a digest a number of times
@param times:int The number of digests
'''
for i in range(times):
- SHA3.keccakF(SHA3.S) # Last squeeze did not do a ending squeeze
- olen = SHA3.n
- while olen > SHA3.r:
- olen -= SHA3.r
- SHA3.keccakF(SHA3.S)
+ self.keccakF(self.S) # Last squeeze did not do a ending squeeze
+ olen = self.n
+ while olen > self.r:
+ olen -= self.r
+ self.keccakF(self.S)
- def squeeze():
+ def squeeze(self):
'''
Squeeze out another digest
@return :bytes The hash sum
'''
- SHA3.keccakF(SHA3.S) # Last squeeze did not do a ending squeeze
+ self.keccakF(self.S) # Last squeeze did not do a ending squeeze
- nn = (SHA3.n + 7) >> 3
- ww = SHA3.w >> 3
+ nn = (self.n + 7) >> 3
+ ww = self.w >> 3
rc = [0] * nn
- olen = SHA3.n
+ olen = self.n
j = 0
ptr = 0
- ni = min(25, SHA3.r >> 3)
+ ni = min(25, self.r >> 3)
while olen > 0:
i = 0
while (i < ni) and (j < nn):
- v = SHA3.S[(i % 5) * 5 + i // 5]
+ v = self.S[(i % 5) * 5 + i // 5]
for _ in range(ww):
if j < nn:
rc[ptr] = v
@@ -619,12 +614,12 @@ class SHA3:
v >>= 8
j += 1
i += 1
- olen -= SHA3.r
+ olen -= self.r
if olen > 0:
- SHA3.keccakF(SHA3.S)
+ self.keccakF(self.S)
- if (SHA3.n & 7) != 0:
- rc[len(rc) - 1] &= (1 << (SHA3.n & 7)) - 1
+ if (self.n & 7) != 0:
+ rc[len(rc) - 1] &= (1 << (self.n & 7)) - 1
return bytes(rc)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-06 13:30:22 +0000