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Updated SM4 with AESENCLAST (markdown)

Sun Yimin 2023-10-11 08:14:28 +08:00
parent 25d407e0ea
commit 3c3235efde
1 changed files with 10 additions and 0 deletions
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SM4-with-AESENCLAST.md

@ -435,11 +435,21 @@ def matrix_from_cols(cols):
k = 7 - i k = 7 - i
j = 1 << k j = 1 << k
m.SetRow(i, [(cols[0] & j) >> k, (cols[1] & j) >> k, (cols[2] & j) >> k, (cols[3] & j) >> k, (cols[4] & j) >> k, (cols[5] & j) >> k, (cols[6] & j) >> k, (cols[7] & j) >> k]) m.SetRow(i, [(cols[0] & j) >> k, (cols[1] & j) >> k, (cols[2] & j) >> k, (cols[3] & j) >> k, (cols[4] & j) >> k, (cols[5] & j) >> k, (cols[6] & j) >> k, (cols[7] & j) >> k])
return m return m
def gen_matrix_based_table(table): def gen_matrix_based_table(table):
return matrix_from_cols([table[0x80] ^ table[0], table[0x40] ^ table[0], table[0x20] ^ table[0], table[0x10] ^ table[0], table[0x08] ^ table[0], table[0x04] ^ table[0], table[0x02] ^ table[0], table[0x01] ^ table[0]]) return matrix_from_cols([table[0x80] ^ table[0], table[0x40] ^ table[0], table[0x20] ^ table[0], table[0x10] ^ table[0], table[0x08] ^ table[0], table[0x04] ^ table[0], table[0x02] ^ table[0], table[0x01] ^ table[0]])
def gen_matrix_based_high_low(high, low):
table = []
for i in range(16):
for j in range(16):
table.append(high[i] ^ low[j])
return gen_matrix_based_table(table)
print(gen_matrix_based_high_low([0x00,0x50,0x14,0x44,0x89,0xd9,0x9d,0xcd,0xde,0x8e,0xca,0x9a,0x57,0x07,0x43,0x13], [0xd3,0x59,0x38,0xb2,0xcc,0x46,0x27,0xad,0x36,0xbc,0xdd,0x57,0x29,0xa3,0xc2,0x48]))
``` ```
# AES ShiftRows # AES ShiftRows
![image](https://github.com/emmansun/gmsm/assets/7235232/12b2527c-84d7-4831-81dc-031275d49cb7) ![image](https://github.com/emmansun/gmsm/assets/7235232/12b2527c-84d7-4831-81dc-031275d49cb7)