无线局域网产品使用的SMS4密码算法.pdfVIP

128128

32

e328

e

ZZZ

222

S88Sbox(.)

32

i32i

128MK=(MK,MK,MK,MK)MK(i=0,1,2,3)

0123i

(rk,rk,…,rk)rk(i=0,…,31)

0131i

FK=(FK,FK,FK,FK)CK=(CK,CK,…,CK)

01230131

FK(i=0,…,3)CK(i=0,…,31)

ii

(X,X,X,X)(Z32)4rkZ32F

012322

F(X0,X1,X2,X3,rk)X0T(X1X2X3rk)

1

Z32Z32L,T(.)=L((.))

22

4S

A(a,a,a,a)(Z8)4B(b,b,b,b)(Z8)4

0123201232

(b,b,b,b)(A)(Sbox(a),Sbox(a),Sbox(a),Sbox(a))

01230123

LBZ32CZ32

22

CL(B)B(B2)(B10)(B18)(B24)

S16

0123456789abcdef

0d690e9fecce13db716b614c228fb2c05

12b679a762abe04c3aa44132649860699

29c4250f491ef98