author | wenzelm |
Fri, 18 Aug 2017 20:47:47 +0200 | |
changeset 66453 | cc19f7ca2ed6 |
parent 55818 | d8b2f50705d0 |
child 66992 | 69673025292e |
permissions | -rw-r--r-- |
41561 | 1 |
(* Title: HOL/SPARK/Examples/RIPEMD-160/RMD_Specification.thy |
2 |
Author: Fabian Immler, TU Muenchen |
|
3 |
||
4 |
Verification of the RIPEMD-160 hash function |
|
5 |
*) |
|
6 |
||
7 |
theory RMD_Specification |
|
66453
cc19f7ca2ed6
session-qualified theory imports: isabelle imports -U -i -d '~~/src/Benchmarks' -a;
wenzelm
parents:
55818
diff
changeset
|
8 |
imports RMD SPARK |
41561 | 9 |
begin |
10 |
||
11 |
(* bit operations *) |
|
12 |
||
13 |
abbreviation rotate_left :: "int \<Rightarrow> int \<Rightarrow> int" where |
|
14 |
"rotate_left i w == uint (word_rotl (nat i) (word_of_int w::word32))" |
|
15 |
||
16 |
spark_proof_functions |
|
17 |
wordops__rotate_left = rotate_left |
|
18 |
||
19 |
||
20 |
(* Conversions for proof functions *) |
|
21 |
abbreviation k_l_spec :: " int => int " where |
|
22 |
"k_l_spec j == uint (K (nat j))" |
|
23 |
abbreviation k_r_spec :: " int => int " where |
|
24 |
"k_r_spec j == uint (K' (nat j))" |
|
25 |
abbreviation r_l_spec :: " int => int " where |
|
26 |
"r_l_spec j == int (r (nat j))" |
|
27 |
abbreviation r_r_spec :: " int => int " where |
|
28 |
"r_r_spec j == int (r' (nat j))" |
|
29 |
abbreviation s_l_spec :: " int => int " where |
|
30 |
"s_l_spec j == int (s (nat j))" |
|
31 |
abbreviation s_r_spec :: " int => int " where |
|
32 |
"s_r_spec j == int (s' (nat j))" |
|
33 |
abbreviation f_spec :: "int \<Rightarrow> int \<Rightarrow> int \<Rightarrow> int \<Rightarrow> int" where |
|
34 |
"f_spec j x y z == |
|
35 |
uint (f (nat j) (word_of_int x::word32) (word_of_int y) (word_of_int z))" |
|
36 |
||
37 |
spark_proof_functions |
|
38 |
k_l_spec = k_l_spec |
|
39 |
k_r_spec = k_r_spec |
|
40 |
r_l_spec = r_l_spec |
|
41 |
r_r_spec = r_r_spec |
|
42 |
s_l_spec = s_l_spec |
|
43 |
s_r_spec = s_r_spec |
|
44 |
f_spec = f_spec |
|
45 |
||
46 |
end |