Longtimeago
def xt_dec(num, enc, k):value0 = enc[0]
value1 = enc[1]
data = 0x70C88617
sum = 0xE6EF3D20
for i in range(num):
value1 -= (((value0 << 4) ^ (value0 >> 5)) + value0) ^ (sum + k[(sum >> 11) & 3])
value1 &= 0xffffffff
sum += data
value0 -= (((value1 << 4) ^ (value1 >> 5)) + value1) ^ (sum + k3])
value0 &= 0xffffffff
return (value0, value1)
def t_dec(enc, k):
value0 = enc[0]
value1 = enc[1]
sum = 0xa6a53780
data = 0x3D3529BC
for i in range(32):
value1 -= ((value0 << 4) + k[2]) ^ (value0 + sum) ^ ((value0 >> 5) + k[3])
value1 &= 0xffffffff
value0 -= ((value1 << 4) + k[0]) ^ (value1 + sum) ^ ((value1 >> 5) + k[1])
value0 &= 0xffffffff
sum -= data
return (value0, value1)
encode = [0x1F306772, 0xB75B0C29, 0x4A7CDBE3, 0x2877BDDF, 0x1354C485, 0x357C3C3A, 0x738AF06C, 0x89B7F537]
for i in range(0, 4, 2):
encode ^= 0xfd
encode1] ^= 0x1fd
for i in range(4, 8, 2):
encode ^= 0x3fd
encode1] ^= 0x7fd
k = [0xfffd, 0x1fffd, 0x3fffd, 0x7fffd]
result = ''
for i in range(0, 4, 2):
a = xt_dec(32, encode, k)
result += hex(a[0])[2:] + hex(a[1])[2:]
for i in range(4, 8, 2):
a = t_dec(encode, k)
result += hex(a[0])[2:] + hex(a[1])[2:]
print("QWB{" + result.upper() + "}")
def xt_dec(num, enc, k):
value0 = enc
value1 = enc
data = 0x70C88617
sum = 0xE6EF3D20
for i in range(num):
value1 -= (((value0 << 4) ^ (value0 >> 5)) + value0) ^ (sum + k[(sum >> 11) & 3])
value1 &= 0xffffffff
sum += data
value0 -= (((value1 << 4) ^ (value1 >> 5)) + value1) ^ (sum + k)
value0 &= 0xffffffff
return (value0, value1)
def t_dec(enc, k):
value0 = enc
value1 = enc
sum = 0xa6a53780
data = 0x3D3529BC
for i in range(32):
value1 -= ((value0 << 4) + k) ^ (value0 + sum) ^ ((value0 >> 5) + k)
value1 &= 0xffffffff
value0 -= ((value1 << 4) + k) ^ (value1 + sum) ^ ((value1 >> 5) + k)
value0 &= 0xffffffff
sum -= data
return (value0, value1)
encode =
for i in range(0, 4, 2):
encode ^= 0xfd
encode ^= 0x1fd
for i in range(4, 8, 2):
encode ^= 0x3fd
encode ^= 0x7fd
k =
result = ''
for i in range(0, 4, 2):
a = xt_dec(32, encode, k)
result += hex(a) + hex(a)
for i in range(4, 8, 2):
a = t_dec(encode, k)
result += hex(a) + hex(a)
print("QWB{" + result.upper() + "}")
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