def
pure_block_cipher_encrypt(p:
list
, k:
, round_n:
int
, constant_c:
):
assert
len
(p)
=
2
(k)
pl
p[
0
]
pr
1
tmpl
tmpr
for
i
in
range
(round_n):
tmpl, tmpr
pure_block_cipher_enc_round(tmpl, tmpr, k[i
%
], constant_c[i])
return
pure_block_cipher_enc_round(xl, xr, ki, ci):
yl
xr
yr
xl
+
(xr
ki
ci)^
3
(yl, yr)
de23f9d82798377ea01743d43d5353cd
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