def sm3_CF(v_i, b_i):
# 消息扩展
w = []
for i in range(16):
# 消息按512bit进行分组
weight = 0x1000000
data = 0
for k in range(i * 4, (i + 1) * 4):
data = data + b_i[k] * weight
weight = int(weight / 0x100)
w.append(data)
for j in range(16, 68):
# 消息扩展 16 TO 67， 为下面的循环做准备
w.append(0)
w[j] = sm3_P_1(w[j - 16] ^ w[j - 9] ^ (rotl(w[j - 3], 15 % 32))) ^ (
rotl(w[j - 13], 7 % 32)) ^ w[j - 6]
str1 = "%08x" % w[j]
w_1 = []
for j in range(0, 64):
# 消息扩展 0 TO 63
w_1.append(0)
w_1[j] = w[j] ^ w[j + 4]
str1 = "%08x" % w_1[j]
a, b, c, d, e, f, g, h = v_i
for j in range(0, 64):
# 压缩函数
ss_1 = rotl(
((rotl(a, 12 % 32)) + e + (rotl(T_j[j], j % 32))) & 0xffffffff,
7 % 32)
ss_2 = ss_1 ^ (rotl(a, 12 % 32))
tt_1 = (sm3_FF_j(a, b, c, j) + d + ss_2 + w_1[j]) & 0xffffffff
tt_2 = (sm3_GG_j(e, f, g, j) + h + ss_1 + w[j]) & 0xffffffff
d = c
c = rotl(b, 9 % 32)
b = a
a = tt_1
h = g
g = rotl(f, 19 % 32)
f = e
e = sm3_P_0(tt_2)
a, b, c, d, e, f, g, h = map(lambda x: x & 0xFFFFFFFF,
[a, b, c, d, e, f, g, h])
v_j = [a, b, c, d, e, f, g, h]
return [v_j[i] ^ v_i[i] for i in range(8)]
def sm3_cf(self, v_i, b_i):
w = []
for i in range(16):
weight = 0x1000000
data = 0
for k in range(i * 4, (i + 1) * 4):
data = data + b_i[k] * weight
weight = int(weight / 0x100)
w.append(data)
for j in range(16, 68):
w.append(0)
w[j] = self.sm3_p_1(w[j - 16] ^ w[j - 9]
^ (rotl(w[j - 3], 15 % 32))) ^ (rotl(
w[j - 13], 7 % 32)) ^ w[j - 6]
str1 = "%08x" % w[j]
w_1 = []
for j in range(0, 64):
w_1.append(0)
w_1[j] = w[j] ^ w[j + 4]
str1 = "%08x" % w_1[j]
a, b, c, d, e, f, g, h = v_i
for j in range(0, 64):
ss_1 = rotl(((rotl(a, 12 % 32)) + e + (rotl(self.T_j[j], j % 32)))
& 0xffffffff, 7 % 32)
ss_2 = ss_1 ^ (rotl(a, 12 % 32))
tt_1 = (self.sm3_ff_j(a, b, c, j) + d + ss_2 + w_1[j]) & 0xffffffff
tt_2 = (self.sm3_gg_j(e, f, g, j) + h + ss_1 + w[j]) & 0xffffffff
d = c
c = rotl(b, 9 % 32)
b = a
a = tt_1
h = g
g = rotl(f, 19 % 32)
f = e
e = self.sm3_p_0(tt_2)
a, b, c, d, e, f, g, h = map(lambda x: x & 0xFFFFFFFF,
[a, b, c, d, e, f, g, h])
v_j = [a, b, c, d, e, f, g, h]
return [v_j[i] ^ v_i[i] for i in range(8)]
def sm3_p_1(x):
return x ^ (rotl(x, 15 % 32)) ^ (rotl(x, 23 % 32))
def sm3_p_0(x):
return x ^ (rotl(x, 9 % 32)) ^ (rotl(x, 17 % 32))
def sm3_P_1(x):
# 置换函数 P1； 右移15位， 右移23位
return x ^ (rotl(x, 15 % 32)) ^ (rotl(x, 23 % 32))
def sm3_P_0(x):
# 置换函数P0； 右移9位， 右移17位
return x ^ (rotl(x, 9 % 32)) ^ (rotl(x, 17 % 32))