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Author SHA1 Message Date
Markus Triska
6b8a679a51 explain potential side-channel attacks due to compact string representation 
This legitimate concern was already raised by @infogulch in:

https://github.com/mthom/scryer-prolog/issues/1309#issuecomment-1080028854

Thank you a lot!
 2024-03-01 22:03:57 +01:00
Markus Triska
ec251b254c ENHANCED: Safe HMAC verification, using constant time string comparison. 
Without this provision, the expected HMAC can be gathered from timing
differences depending on the position where the strings first diverge,
and hence an attacker can forge an authenticated message by supplying
the gathered HMAC.

Test case, using exp(E) to succeed exactly 2^E times:

    exp(E) :-
        N is 2^E,
        between(1, N, _).

yielding:

    ?- Options = [algorithm(sha512),hmac([1,2,3])],
       Ds = "test",
       crypto_data_hash(Ds, H, Options),
       phrase((seq(As),seq(Bs)), H),
       same_length(Bs, Cs),
       maplist(=(a), Cs),
       append(As, Cs, H1),
       time((exp(10),crypto_data_hash(Ds, H1, Options),false)).
    %@    % CPU time: 0.710s, 7_942_187 inferences
    %@    % CPU time: 0.713s, 7_942_187 inferences
    %@    % CPU time: 0.712s, 7_942_187 inferences
    %@    % CPU time: 0.711s, 7_942_187 inferences
    %@    % CPU time: 0.710s, 7_942_187 inferences
    %@    % CPU time: 0.711s, 7_942_187 inferences
    %@    % CPU time: 0.710s, 7_942_187 inferences

    ?- length(_, L), time((exp(10),crypto_data_hash("test", "3caebd1a0a2647930319a660b7d3642eb380fbd43202f9f6d08aabaa9ba50c39522a12ead10f0423f0af613cbc6fea74ad682ee11f563cc2e735722004fda2ba", [algorithm(sha512),hmac([0,L])]),false)).
    %@    % CPU time: 0.733s, 7_878_699 inferences
    %@    % CPU time: 0.734s, 7_878_699 inferences
    %@    % CPU time: 0.732s, 7_878_699 inferences
    %@    % CPU time: 0.733s, 7_878_699 inferences
    %@    % CPU time: 0.733s, 7_878_699 inferences
    %@    % CPU time: 0.733s, 7_878_699 inferences
    %@    % CPU time: 0.733s, 7_878_699 inferences
    %@    % CPU time: 0.733s, 7_878_699 inferences
    %@    % CPU time: 0.733s, 7_878_699 inferences
    %@    % CPU time: 0.733s, 7_878_699 inferences
    %@    % CPU time: 0.733s, 7_878_699 inferences
    %@    % CPU time: 0.515s, 5_525_404 inferences
    %@    error('$interrupt_thrown',repl/0).
 2024-03-01 18:59:48 +01:00
Mark
42f4827854 make indexer downcast Integers to Fixnums when possible, be slightly more judicious about allocating Integers instead of Fixnums (#2340) 2024-02-29 16:15:28 -07:00
Mark
f2d3779fa9 add #2341 test to lib_machine.rs 2024-02-29 15:12:58 -07:00
Mark
b70f121e46 use scryer-modular-bitfield on github, version bump
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2024-02-29 10:08:14 -07:00
Mark
641765858f fix misuse of TypeError trait while fixing #2345 2024-02-28 20:47:36 -07:00
Mark
ba362e2fe0 issue callable type error from dynamic_module_resolution if module is not an atom (#2345) 2024-02-28 20:35:38 -07:00
Mark Thom
84d5ce0d1e Merge pull request #2309 from coasys/library-use-case 
Iron-out edge cases for library use-case, adding extensive real-world test assertions
 2024-02-28 14:34:54 -07:00
Markus Triska
1dd0c599c6 DOC: Add DocLog comments for reasoning about elliptic curves. 2024-02-24 20:43:57 +01:00
Markus Triska
27852eafd7 ADDED: Hash-based message authentication code (HMAC), using hmac(Key). 2024-02-22 20:53:27 +01:00
Bennet Bleßmann
e5ad70c093 fix compilation of wasm32 test and skip to run wasm32 tests 2024-02-16 23:18:21 +01:00
Markus Triska
8f2e9c6b94 FIXED: char_type/2 for unbound first argument. 
Surrogate pairs form a gap in valid character codes, see:

    https://github.com/mthom/scryer-prolog/issues/2326#issuecomment-1937864665

Many thanks to @Skgland for the pointer, and to @librarianmage for the
question that spawned this!

This addresses #2326.
 2024-02-11 22:19:19 +01:00
Nicolas Luck
1d2961e047 Merge branch 'master' into library-use-case 2024-02-09 12:41:01 +01:00
Mark Thom
b43f0979d9 Update src/machine/parsed_results.rs 
Co-authored-by: Bennet Bleßmann <bennet.blessmann+github@googlemail.com>
 2024-02-08 19:10:29 -07:00
Mark
539a1aee2c fix tests broken by singleton 2024-02-07 21:46:32 -07:00
Markus Triska
53b7d9eec9 ENHANCED: Bidirectional char_type/2, addressing #2321. 
Suggested by @librarianmage, many thanks!
 2024-02-07 20:57:28 +01:00
Markus Triska
aa98a7e7d6 ADDED: clpz_t/2, generalizing support for use with library(reif) 
This was suggested and contributed by @librarianmage in:

    https://github.com/mthom/scryer-prolog/issues/2225#issuecomment-1890801923

Many thanks!

If anyone can find a better predicate name, please let us know any time!
 2024-02-06 19:05:29 +01:00
Mark
614850ab1d fmt 2024-02-05 18:34:57 -07:00
Adrián Arroyo Calle
ec4a8745e7 Add all_mdoules test and fix library(csv) 2024-02-04 21:34:01 +01:00
Mark
673329ddb7 fix reverted tests, ensure files are loaded before goals (#2315) 2024-02-03 11:49:26 -07:00
Mark
de6c460a51 treat consultation of command line modules as regular goals (#2314) 2024-02-02 15:35:00 -07:00
Mark
75a94fd0b3 fmt 2024-02-02 11:49:02 -07:00
Mark
7573c64087 load .scryerrc before files and goals (#1775, #2313) 2024-02-02 10:54:28 -07:00
Mark
cbb422f69d record stub choice point as block 2024-02-01 09:26:58 -07:00
Nicolas Luck
06f198bc57 Test show problem with nonexistent predicate 2024-02-01 14:14:50 +01:00
Nicolas Luck
6586657658 fmt 2024-02-01 13:53:21 +01:00
Nicolas Luck
a0e598b97e clippy 2024-02-01 13:51:37 +01:00
Nicolas Luck
8a6ea29c45 Fix all orderings in integration assertions 2024-02-01 13:43:51 +01:00
Nicolas Luck
e1b0ba466b Remove test with long program literals, not needed 2024-02-01 13:00:49 +01:00
Nicolas Luck
f35d6287ab More ordering adjustments 2024-02-01 12:59:10 +01:00
Mark
53028a9c2a fix style errors 2024-01-31 17:32:32 -07:00
Mark
33fc2ed10c index stub choice point correctly 2024-01-31 17:30:13 -07:00
Nicolas Luck
bc02fb3754 Extract failing assertion as single test case 2024-01-31 15:03:28 +01:00
Nicolas Luck
48b2379fe5 Adjust some first result orderings in integration assertions 2024-01-30 12:54:12 +01:00
Mark
7de693eb23 check for True or False Query Resolution unconditionally 2024-01-29 15:06:56 -07:00
Nicolas Luck
7bb9c00356 fmt 2024-01-29 18:44:20 +01:00
Nicolas Luck
9aacfff35d Add more test cases to differentiate usage of discontiguous 2024-01-29 16:49:03 +01:00
Nicolas Luck
2e728c7051 Minimal reproduction of faulty behaviour seen in integration tests 2024-01-29 15:26:06 +01:00
Nicolas Luck
7e973a6da6 Merge branch 'master' into library-use-case 2024-01-26 17:21:47 +01:00
Nicolas Luck
cb014095ad Add expected results to integration test 
Results are logs of what we get with old toplevel-based version of lib_machine. These are also congruent with what our tests logged out based on SWI.
 2024-01-26 17:18:57 +01:00
Mark
6fe8f64835 scan registers of instructions leading to verify_attributes interrupt to find the number of registers to save (#2307) 2024-01-25 23:59:54 -07:00
Markus Triska
3505cc3ba0 update answers using latest toplevel output 2024-01-25 21:33:27 +01:00
Markus Triska
05ba5f4358 rely on recently improved argument indexing for determinism 
This is possible as of 4fd37335f5.
 2024-01-25 21:31:08 +01:00
Mark
bc616ca7d8 move call_residue_vars/2 from atts.pl to iso_ext.pl 2024-01-25 12:40:24 -07:00
Mark
99131131af don't mark temp variables as safe through argument_to_value (#2307) 2024-01-25 12:34:21 -07:00
Markus Triska
a6ccf95076 improve error context 
Source: https://github.com/mthom/scryer-prolog/issues/2304#issuecomment-1906434756
 2024-01-23 21:43:34 +01:00
Markus Triska
665f319a0e no longer use (->)//2, since it is implementation defined 
This addresses #2304.
 2024-01-23 21:42:36 +01:00
Markus Triska
81dba11ab1 use newly available false//0 2024-01-21 22:53:22 +01:00
Markus Triska
388fa5baa9 no longer use (->)//2, since it is implementation dependent 2024-01-21 22:50:36 +01:00
Markus Triska
fe3241c07c remove checks that are now no longer needed due to representation errors 2024-01-21 10:28:19 +01:00