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Implement new policy for VERIFY_CHECK and #ifdef VERIFY (issue #1381) #1393

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theStack
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@theStack theStack commented Aug 4, 2023

As suggested in #1381, this PR reworks the policy for VERIFY_CHECK and when to use #ifdef VERIFY, by:

  • redefining VERIFY_CHECK to empty in production (non-VERIFY) mode
  • removing many then superflous #ifdef VERIFY blocks (if they exclusively contained VERIFY_CHECKs)
  • introducing uppercase macros around verify_ functions and using them for better readabiliy

What is not included yet is the proposed renaming from "_check" to "_assert":

And while we're touching this anyway, we could consider renaming "check" to "assert", which is a more precise term. (In fact, if we redefine VERIFY_CHECK to be empty in production, we have almost reimplemented assert.h...)

This should be easy to achieve with simple search-and-replace (e.g. using sed), but I was hesitant as this would probably case annoying merge conflicts on some of the open PRs. Happy to add this if the rename if desired (#1381 didn't get any feedback about the renaming idea yet).

@theStack theStack force-pushed the rework_verify_check-and-ifdef_verify branch from 3c7b907 to dfdafd3 Compare August 16, 2023 12:01
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Rebased on master (since #1348 has been merged) and updated the PR description accordingly.

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theStack commented Aug 18, 2023

Rebased on master again and introduced an uppercase macro for secp256k1_scalar_verify as well (introduced in recently merged #1373).

@theStack theStack force-pushed the rework_verify_check-and-ifdef_verify branch from e7d364f to 2489c59 Compare August 18, 2023 12:42
@theStack theStack force-pushed the rework_verify_check-and-ifdef_verify branch from 2489c59 to 3674388 Compare September 21, 2023 02:01
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Rebased on master (CI was failing previously).

src/util.h Outdated
#define VERIFY_CHECK CHECK
#define VERIFY_SETUP(stmt) do { stmt; } while(0)
#else
#define VERIFY_CHECK(cond) do { (void)(cond); } while(0)
#define VERIFY_CHECK(cond)
#define VERIFY_SETUP(stmt)
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c723b85: what does VERIFY_SETUP do? it looks really similar to VERIFY_CHECK and used in only 2 places in the codebase.

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The only two uses trace back to 72ae443 where the macro was introduced.

My thinking is that the purpose of VERIFY_SETUP is to wrap code whose only purpose is to perform side effects ("setup") for further VERIFY_CHECKs. But assuming this interpretation, I don't really understand 72ae443.

The effect of the two existing VERIFY_SETUP uses is that they initialize r->x and r->y but that's done anyway in the current code, immediately afterward:

VERIFY_SETUP(secp256k1_fe_clear(&(r)->x)); \
VERIFY_SETUP(secp256k1_fe_clear(&(r)->y)); \
/* Unconditionally set r->x = (pre)[m].x. r->y = (pre)[m].y. because it's either the correct one
* or will get replaced in the later iterations, this is needed to make sure `r` is initialized. */ \
(r)->x = (pre)[m].x; \
(r)->y = (pre)[m].y; \

@sipa Is there a reason why you kept these in #1184?

Anyway, I suggest:

  • Drop the two uses of VERIFY_SETUP.
  • Drop VERIFY_SETUP. (Our implicit convention for such code is to nest it in an #ifdef VERIFY block.)

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The VERIFY_SETUP calls in ecmult_const_impl.h were made obsolete long before that, in #754, but somehow survived since. They can clearly be removed, indeed.

VERIFY_CHECK((t >> 32) == 0);
#endif
VERIFY_CHECK(secp256k1_scalar_check_overflow(r) == 0);
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33314ca: can we remove this since it's already done inside secp256k1_scalar_verify?

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This will be resolved by a rebase because it has already been done in #1184, see #1184 (comment).

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33314ca: can we remove this since it's already done inside secp256k1_scalar_verify?

Oops, no idea why I added this line in a commit which is supposed to only remove lines (and only add blank ones for better readability). Removed now.

This will be resolved by a rebase because it has already been done in #1184, see #1184 (comment).

@real-or-random: The comment link refers to the same expression, but in a different function. The one in the review comment (being in secp256k1_scalar_cadd_bit) was indeed still there after the rebase.

As suggested in issue bitcoin-core#1381, this will make things simpler and
improve code readability, as we don't need to force omitting of
evaluations on a case-by-case basis anymore and hence can remove
lots of `#ifdef VERIFY`/`#endif` lines (see next commit). Plus,
VERIFY_CHECK behaves now identical in both non-VERIFY and coverage mode,
making the latter not special anymore and hopefully decreasing
maintenance burden. The idea of "side-effect safety" is given up.

Note that at two places in the ellswift module void-casts of return
values have to be inserted for non-VERIFY builds, in order to avoid
   "variable ... set but not used [-Wunused-but-set-variable]"
warnings.
Now that the `VERIFY_CHECK` compiles to empty in non-VERIFY mode, blocks
that only consist of these macros don't need surrounding `#ifdef VERIFY`
conditions anymore.

At some places intentional blank lines are inserted for grouping and
better readadbility.
By providing an uppercase variant of these verification functions, it is
better visible that it is test code and surrounding `#ifdef VERIFY`
blocks can be removed (if there is no other code around that could
remain in production mode), as they don't serve their purpose any more.

At some places intentional blank lines are inserted for grouping and
better readadbility.
By providing an uppercase variant of these verification functions,
it is better visible that it is test code.
As the fields r->x and r->y are set immediately after (three lines
below), there is no need to clear them.
This define was seemingly introduced for VERIFY mode code with side
effects (for setup purposes), that should just be executed without any
checks. The same can be achieved by putting it in an `#if VERIFY` block,
so we can remove it.
@theStack theStack force-pushed the rework_verify_check-and-ifdef_verify branch from 3674388 to bb46723 Compare December 1, 2023 00:45
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theStack commented Dec 1, 2023

Rebased on master (taking the new function _scalar_half into account, introduced in #1184), fixed #1393 (comment) and added commits to drop VERIFY_SETUP as suggested.

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ACK bb46723.

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utACK bb46723

It looks a bit strange that the new uppercase macros have a SECP256K1_ prefix, but our existing macros don't. If you ask me, we should probably add a prefix to everything, but that could be controversial since it touches many lines. Let's not hold this PR up. edit: Tracked in #1449

@real-or-random real-or-random linked an issue Dec 1, 2023 that may be closed by this pull request
@real-or-random real-or-random merged commit 07687e8 into bitcoin-core:master Dec 1, 2023
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@theStack theStack deleted the rework_verify_check-and-ifdef_verify branch December 1, 2023 12:37
fanquake added a commit to fanquake/bitcoin that referenced this pull request Jan 3, 2024
efe85c70a2 Merge bitcoin-core/secp256k1#1466: release cleanup: bump version after 0.4.1
4b2e06f460 release cleanup: bump version after 0.4.1
1ad5185 Merge bitcoin-core/secp256k1#1465: release: prepare for 0.4.1
672053d release: prepare for 0.4.1
1a81df8 Merge bitcoin-core/secp256k1#1380: Add ABI checking tool for release process
74a4d97 doc: Add ABI checking with `check-abi.sh` to the Release Process
e7f830e Add `tools/check-abi.sh`
77af1da Merge bitcoin-core/secp256k1#1455: doc: improve secp256k1_fe_set_b32_mod doc
3928b7c doc: improve secp256k1_fe_set_b32_mod doc
5e9a4d7 Merge bitcoin-core/secp256k1#990: Add comment on length checks when parsing ECDSA sigs
4197d66 Merge bitcoin-core/secp256k1#1431: Add CONTRIBUTING.md
0e5ea62 CONTRIBUTING: add some coding and style conventions
e2c9888 Merge bitcoin-core/secp256k1#1451: changelog: add entry for "field: Remove x86_64 asm"
d2e36a2 changelog: add entry for "field: Remove x86_64 asm"
1a432cb README: update first sentence
0922a04 docs: move coverage report instructions to CONTRIBUTING
76880e4 Add CONTRIBUTING.md including scope and guidelines for new code
d3e29db Merge bitcoin-core/secp256k1#1450: Add group.h ge/gej equality functions
04af0ba Replace ge_equals_ge[,j] calls with group.h equality calls
60525f6 Add unit tests for group.h equality functions
a47cd97 Add group.h ge/gej equality functions
10e6d29 Merge bitcoin-core/secp256k1#1446: field: Remove x86_64 asm
07687e8 Merge bitcoin-core/secp256k1#1393: Implement new policy for VERIFY_CHECK and #ifdef VERIFY (issue bitcoin#1381)
bb46723 remove VERIFY_SETUP define
a3a3e11 remove unneeded VERIFY_SETUP uses in ECMULT_CONST_TABLE_GET_GE macro
a0fb68a introduce and use SECP256K1_SCALAR_VERIFY macro
cf25c86 introduce and use SECP256K1_{FE,GE,GEJ}_VERIFY macros
5d89bc0 remove superfluous `#ifdef VERIFY`/`#endif` preprocessor conditions
c2688f8 redefine VERIFY_CHECK to empty in production (non-VERIFY) mode
5814d84 Merge bitcoin-core/secp256k1#1438: correct assertion for secp256k1_fe_mul_inner
c1b4966 Merge bitcoin-core/secp256k1#1445: bench: add --help option to bench_internal
f07cead build: Don't call assembly an optimization
2f0762f field: Remove x86_64 asm
1ddd76a bench: add --help option to bench_internal
e721039 Merge bitcoin-core/secp256k1#1441: asm: add .note.GNU-stack section for non-exec stack
ea47c82 Merge bitcoin-core/secp256k1#1442: Return temporaries to being unsigned in secp256k1_fe_sqr_inner
dcdda31 Tighten secp256k1_fe_mul_inner's VERIFY_BITS checks
1027135 Return temporaries to being unsigned in secp256k1_fe_sqr_inner
33dc7e4 asm: add .note.GNU-stack section for non-exec stack
c891c5c Merge bitcoin-core/secp256k1#1437: ci: Ignore internal errors of snapshot compilers
8185e72 ci: Ignore internal errors in snapshot compilers
40f50d0 Merge bitcoin-core/secp256k1#1184: Signed-digit based ecmult_const algorithm
8e2a5fe correct assertion for secp256k1_fe_mul_inner
355bbdf Add changelog entry for signed-digit ecmult_const algorithm
21f49d9 Remove unused secp256k1_scalar_shr_int
115fdc7 Remove unused secp256k1_wnaf_const
aa9f3a3 ecmult_const: add/improve tests
4d16e90 Signed-digit based ecmult_const algorithm
ba523be make SECP256K1_SCALAR_CONST reduce modulo exhaustive group order
2140da9 Add secp256k1_scalar_half for halving scalars (+ tests/benchmarks).
1f1bb78 Merge bitcoin-core/secp256k1#1430: README: remove CI badge
5dab0ba README: remove CI badge
b314cf2 Merge bitcoin-core/secp256k1#1426: ci/cirrus: Add native ARM64 jobs
fa4d6c7 ci/cirrus: Add native ARM64 persistent workers
ee7aaf2 Merge bitcoin-core/secp256k1#1395: tests: simplify `random_fe_non_zero` (remove loop limit and unneeded normalize)
ba9cb6f Merge bitcoin-core/secp256k1#1424: ci: Bump major versions for docker actions
d9d80fd ci: Bump major versions for docker actions
4fd00f4 Merge bitcoin-core/secp256k1#1422: cmake: Install `libsecp256k1.pc` file
421d848 ci: Align Autotools/CMake `CI_INSTALL` directory names
9f005c6 cmake: Install `libsecp256k1.pc` file
2262d0e ci/cirrus: Bring back skeleton .cirrus.yml without jobs
b10ddd2 Merge bitcoin-core/secp256k1#1416: doc: Align documented scripts with CI ones
49be5be Merge bitcoin-core/secp256k1#1390: tests: Replace counting_illegal_callbacks with CHECK_ILLEGAL_VOID
cbf3053 Merge bitcoin-core/secp256k1#1417: release cleanup: bump version after 0.4.0
9b118bc release cleanup: bump version after 0.4.0
7030364 tests: add CHECK_ERROR_VOID and use it in scratch tests
f8d7ea6 tests: Replace counting_illegal_callbacks with CHECK_ILLEGAL_VOID
b0f7bfe doc: Do not mention soname in CHANGELOG.md "ABI Compatibility" section
bd9d98d doc: Align documented scripts with CI ones
a1d52e3 tests: remove unnecessary test in run_ec_pubkey_parse_test
875b0ad tests: remove unnecessary set_illegal_callback
c45b7c4 refactor: introduce testutil.h (deduplicate `random_fe_`, `ge_equals_` helpers)
dc55141 tests: simplify `random_fe_non_zero` (remove loop limit and unneeded normalize)
e02f313 Add comment on length checks when parsing ECDSA sigs

git-subtree-dir: src/secp256k1
git-subtree-split: efe85c70a2e357e3605a8901a9662295bae1001f
fanquake added a commit to fanquake/bitcoin that referenced this pull request Jan 4, 2024
efe85c70a2 Merge bitcoin-core/secp256k1#1466: release cleanup: bump version after 0.4.1
4b2e06f460 release cleanup: bump version after 0.4.1
1ad5185 Merge bitcoin-core/secp256k1#1465: release: prepare for 0.4.1
672053d release: prepare for 0.4.1
1a81df8 Merge bitcoin-core/secp256k1#1380: Add ABI checking tool for release process
74a4d97 doc: Add ABI checking with `check-abi.sh` to the Release Process
e7f830e Add `tools/check-abi.sh`
77af1da Merge bitcoin-core/secp256k1#1455: doc: improve secp256k1_fe_set_b32_mod doc
3928b7c doc: improve secp256k1_fe_set_b32_mod doc
5e9a4d7 Merge bitcoin-core/secp256k1#990: Add comment on length checks when parsing ECDSA sigs
4197d66 Merge bitcoin-core/secp256k1#1431: Add CONTRIBUTING.md
0e5ea62 CONTRIBUTING: add some coding and style conventions
e2c9888 Merge bitcoin-core/secp256k1#1451: changelog: add entry for "field: Remove x86_64 asm"
d2e36a2 changelog: add entry for "field: Remove x86_64 asm"
1a432cb README: update first sentence
0922a04 docs: move coverage report instructions to CONTRIBUTING
76880e4 Add CONTRIBUTING.md including scope and guidelines for new code
d3e29db Merge bitcoin-core/secp256k1#1450: Add group.h ge/gej equality functions
04af0ba Replace ge_equals_ge[,j] calls with group.h equality calls
60525f6 Add unit tests for group.h equality functions
a47cd97 Add group.h ge/gej equality functions
10e6d29 Merge bitcoin-core/secp256k1#1446: field: Remove x86_64 asm
07687e8 Merge bitcoin-core/secp256k1#1393: Implement new policy for VERIFY_CHECK and #ifdef VERIFY (issue bitcoin#1381)
bb46723 remove VERIFY_SETUP define
a3a3e11 remove unneeded VERIFY_SETUP uses in ECMULT_CONST_TABLE_GET_GE macro
a0fb68a introduce and use SECP256K1_SCALAR_VERIFY macro
cf25c86 introduce and use SECP256K1_{FE,GE,GEJ}_VERIFY macros
5d89bc0 remove superfluous `#ifdef VERIFY`/`#endif` preprocessor conditions
c2688f8 redefine VERIFY_CHECK to empty in production (non-VERIFY) mode
5814d84 Merge bitcoin-core/secp256k1#1438: correct assertion for secp256k1_fe_mul_inner
c1b4966 Merge bitcoin-core/secp256k1#1445: bench: add --help option to bench_internal
f07cead build: Don't call assembly an optimization
2f0762f field: Remove x86_64 asm
1ddd76a bench: add --help option to bench_internal
e721039 Merge bitcoin-core/secp256k1#1441: asm: add .note.GNU-stack section for non-exec stack
ea47c82 Merge bitcoin-core/secp256k1#1442: Return temporaries to being unsigned in secp256k1_fe_sqr_inner
dcdda31 Tighten secp256k1_fe_mul_inner's VERIFY_BITS checks
1027135 Return temporaries to being unsigned in secp256k1_fe_sqr_inner
33dc7e4 asm: add .note.GNU-stack section for non-exec stack
c891c5c Merge bitcoin-core/secp256k1#1437: ci: Ignore internal errors of snapshot compilers
8185e72 ci: Ignore internal errors in snapshot compilers
40f50d0 Merge bitcoin-core/secp256k1#1184: Signed-digit based ecmult_const algorithm
8e2a5fe correct assertion for secp256k1_fe_mul_inner
355bbdf Add changelog entry for signed-digit ecmult_const algorithm
21f49d9 Remove unused secp256k1_scalar_shr_int
115fdc7 Remove unused secp256k1_wnaf_const
aa9f3a3 ecmult_const: add/improve tests
4d16e90 Signed-digit based ecmult_const algorithm
ba523be make SECP256K1_SCALAR_CONST reduce modulo exhaustive group order
2140da9 Add secp256k1_scalar_half for halving scalars (+ tests/benchmarks).
1f1bb78 Merge bitcoin-core/secp256k1#1430: README: remove CI badge
5dab0ba README: remove CI badge
b314cf2 Merge bitcoin-core/secp256k1#1426: ci/cirrus: Add native ARM64 jobs
fa4d6c7 ci/cirrus: Add native ARM64 persistent workers
ee7aaf2 Merge bitcoin-core/secp256k1#1395: tests: simplify `random_fe_non_zero` (remove loop limit and unneeded normalize)
ba9cb6f Merge bitcoin-core/secp256k1#1424: ci: Bump major versions for docker actions
d9d80fd ci: Bump major versions for docker actions
4fd00f4 Merge bitcoin-core/secp256k1#1422: cmake: Install `libsecp256k1.pc` file
421d848 ci: Align Autotools/CMake `CI_INSTALL` directory names
9f005c6 cmake: Install `libsecp256k1.pc` file
2262d0e ci/cirrus: Bring back skeleton .cirrus.yml without jobs
b10ddd2 Merge bitcoin-core/secp256k1#1416: doc: Align documented scripts with CI ones
49be5be Merge bitcoin-core/secp256k1#1390: tests: Replace counting_illegal_callbacks with CHECK_ILLEGAL_VOID
cbf3053 Merge bitcoin-core/secp256k1#1417: release cleanup: bump version after 0.4.0
9b118bc release cleanup: bump version after 0.4.0
7030364 tests: add CHECK_ERROR_VOID and use it in scratch tests
f8d7ea6 tests: Replace counting_illegal_callbacks with CHECK_ILLEGAL_VOID
b0f7bfe doc: Do not mention soname in CHANGELOG.md "ABI Compatibility" section
bd9d98d doc: Align documented scripts with CI ones
a1d52e3 tests: remove unnecessary test in run_ec_pubkey_parse_test
875b0ad tests: remove unnecessary set_illegal_callback
c45b7c4 refactor: introduce testutil.h (deduplicate `random_fe_`, `ge_equals_` helpers)
dc55141 tests: simplify `random_fe_non_zero` (remove loop limit and unneeded normalize)
e02f313 Add comment on length checks when parsing ECDSA sigs

git-subtree-dir: src/secp256k1
git-subtree-split: efe85c70a2e357e3605a8901a9662295bae1001f
janus pushed a commit to BitgesellOfficial/bitgesell that referenced this pull request Apr 6, 2024
efe85c70a2 Merge bitcoin-core/secp256k1#1466: release cleanup: bump version after 0.4.1
4b2e06f460 release cleanup: bump version after 0.4.1
1ad5185cd4 Merge bitcoin-core/secp256k1#1465: release: prepare for 0.4.1
672053d801 release: prepare for 0.4.1
1a81df826e Merge bitcoin-core/secp256k1#1380: Add ABI checking tool for release process
74a4d974d5 doc: Add ABI checking with `check-abi.sh` to the Release Process
e7f830e32c Add `tools/check-abi.sh`
77af1da9f6 Merge bitcoin-core/secp256k1#1455: doc: improve secp256k1_fe_set_b32_mod doc
3928b7c383 doc: improve secp256k1_fe_set_b32_mod doc
5e9a4d7aec Merge bitcoin-core/secp256k1#990: Add comment on length checks when parsing ECDSA sigs
4197d667ec Merge bitcoin-core/secp256k1#1431: Add CONTRIBUTING.md
0e5ea62207 CONTRIBUTING: add some coding and style conventions
e2c9888eee Merge bitcoin-core/secp256k1#1451: changelog: add entry for "field: Remove x86_64 asm"
d2e36a2b81 changelog: add entry for "field: Remove x86_64 asm"
1a432cb982 README: update first sentence
0922a047fb docs: move coverage report instructions to CONTRIBUTING
76880e4015 Add CONTRIBUTING.md including scope and guidelines for new code
d3e29db8bb Merge bitcoin-core/secp256k1#1450: Add group.h ge/gej equality functions
04af0ba162 Replace ge_equals_ge[,j] calls with group.h equality calls
60525f6c14 Add unit tests for group.h equality functions
a47cd97d51 Add group.h ge/gej equality functions
10e6d29b60 Merge bitcoin-core/secp256k1#1446: field: Remove x86_64 asm
07687e811d Merge bitcoin-core/secp256k1#1393: Implement new policy for VERIFY_CHECK and #ifdef VERIFY (issue #1381)
bb4672342e remove VERIFY_SETUP define
a3a3e11acd remove unneeded VERIFY_SETUP uses in ECMULT_CONST_TABLE_GET_GE macro
a0fb68a2e7 introduce and use SECP256K1_SCALAR_VERIFY macro
cf25c86d05 introduce and use SECP256K1_{FE,GE,GEJ}_VERIFY macros
5d89bc031b remove superfluous `#ifdef VERIFY`/`#endif` preprocessor conditions
c2688f8de9 redefine VERIFY_CHECK to empty in production (non-VERIFY) mode
5814d8485c Merge bitcoin-core/secp256k1#1438: correct assertion for secp256k1_fe_mul_inner
c1b4966410 Merge bitcoin-core/secp256k1#1445: bench: add --help option to bench_internal
f07cead0ca build: Don't call assembly an optimization
2f0762fa8f field: Remove x86_64 asm
1ddd76af0a bench: add --help option to bench_internal
e72103932d Merge bitcoin-core/secp256k1#1441: asm: add .note.GNU-stack section for non-exec stack
ea47c82e01 Merge bitcoin-core/secp256k1#1442: Return temporaries to being unsigned in secp256k1_fe_sqr_inner
dcdda31f2c Tighten secp256k1_fe_mul_inner's VERIFY_BITS checks
10271356c8 Return temporaries to being unsigned in secp256k1_fe_sqr_inner
33dc7e4d3e asm: add .note.GNU-stack section for non-exec stack
c891c5c2f4 Merge bitcoin-core/secp256k1#1437: ci: Ignore internal errors of snapshot compilers
8185e72d29 ci: Ignore internal errors in snapshot compilers
40f50d0fbd Merge bitcoin-core/secp256k1#1184: Signed-digit based ecmult_const algorithm
8e2a5fe908 correct assertion for secp256k1_fe_mul_inner
355bbdf38a Add changelog entry for signed-digit ecmult_const algorithm
21f49d9bec Remove unused secp256k1_scalar_shr_int
115fdc7232 Remove unused secp256k1_wnaf_const
aa9f3a3c00 ecmult_const: add/improve tests
4d16e90111 Signed-digit based ecmult_const algorithm
ba523be067 make SECP256K1_SCALAR_CONST reduce modulo exhaustive group order
2140da9cd5 Add secp256k1_scalar_half for halving scalars (+ tests/benchmarks).
1f1bb78b7f Merge bitcoin-core/secp256k1#1430: README: remove CI badge
5dab0baa80 README: remove CI badge
b314cf2833 Merge bitcoin-core/secp256k1#1426: ci/cirrus: Add native ARM64 jobs
fa4d6c76b6 ci/cirrus: Add native ARM64 persistent workers
ee7aaf213e Merge bitcoin-core/secp256k1#1395: tests: simplify `random_fe_non_zero` (remove loop limit and unneeded normalize)
ba9cb6f378 Merge bitcoin-core/secp256k1#1424: ci: Bump major versions for docker actions
d9d80fd155 ci: Bump major versions for docker actions
4fd00f4bfe Merge bitcoin-core/secp256k1#1422: cmake: Install `libsecp256k1.pc` file
421d84855a ci: Align Autotools/CMake `CI_INSTALL` directory names
9f005c60d6 cmake: Install `libsecp256k1.pc` file
2262d0eaab ci/cirrus: Bring back skeleton .cirrus.yml without jobs
b10ddd2bd2 Merge bitcoin-core/secp256k1#1416: doc: Align documented scripts with CI ones
49be5be9e8 Merge bitcoin-core/secp256k1#1390: tests: Replace counting_illegal_callbacks with CHECK_ILLEGAL_VOID
cbf3053ff1 Merge bitcoin-core/secp256k1#1417: release cleanup: bump version after 0.4.0
9b118bc7fb release cleanup: bump version after 0.4.0
70303643cf tests: add CHECK_ERROR_VOID and use it in scratch tests
f8d7ea68df tests: Replace counting_illegal_callbacks with CHECK_ILLEGAL_VOID
b0f7bfedc9 doc: Do not mention soname in CHANGELOG.md "ABI Compatibility" section
bd9d98d353 doc: Align documented scripts with CI ones
a1d52e3e12 tests: remove unnecessary test in run_ec_pubkey_parse_test
875b0ada25 tests: remove unnecessary set_illegal_callback
c45b7c4fbb refactor: introduce testutil.h (deduplicate `random_fe_`, `ge_equals_` helpers)
dc5514144f tests: simplify `random_fe_non_zero` (remove loop limit and unneeded normalize)
e02f313b1f Add comment on length checks when parsing ECDSA sigs

git-subtree-dir: src/secp256k1
git-subtree-split: efe85c70a2e357e3605a8901a9662295bae1001f
hebasto added a commit to hebasto/secp256k1-CMake-example that referenced this pull request May 11, 2024
e3a885d Merge bitcoin-core/secp256k1#1522: release: prepare for 0.5.0
c0e4ec3 release: prepare for 0.5.0
bb528cf Merge bitcoin-core/secp256k1#1518: Add secp256k1_pubkey_sort
7d2591c Add secp256k1_pubkey_sort
da51507 Merge bitcoin-core/secp256k1#1058: Signed-digit multi-comb ecmult_gen algorithm
4c341f8 Add changelog entry for SDMC
a043940 Permit COMB_BITS < 256 for exhaustive tests
39b2f2a Add test case for ecmult_gen recoded = {-1,0,1}
644e86d Reintroduce projective blinding
07810d9 Reduce side channels from single-bit reads
a0d32b5 Optimization: use Nx32 representation for recoded bits
e03dcc4 Make secp256k1_scalar_get_bits support 32-bit reads
5005abe Rename scalar_get_bits -> scalar_get_bits_limb32; return uint32_t
6247f48 Optimization: avoid unnecessary doublings in precomputation
15d0cca Optimization: first table lookup needs no point addition
7a33db3 Optimization: move (2^COMB_BITS-1)/2 term into ctx->scalar_offset
ed2a056 Provide 3 configurations accessible through ./configure
5f7be9f Always generate tables for current (blocks,teeth) config
fde1dfc Signed-digit multi-comb ecmult_gen algorithm
486518b Make exhaustive tests's scalar_inverse(&x,&x) work
ab45c3e Initial gej blinding -> final ge blinding
aa00a6b Introduce CEIL_DIV macro and use it
d831168 Merge bitcoin-core/secp256k1#1515: ci: Note affected clangs in comment on ASLR quirk
a85e223 ci: Note affected clangs in comment on ASLR quirk
4b77fec Merge bitcoin-core/secp256k1#1512: msan: notate more variable assignments from assembly code
f7f0184 msan: notate more variable assignments from assembly code
a613391 change inconsistent array param to pointer
05bfab6 Merge bitcoin-core/secp256k1#1507: ci: Add workaround for ASLR bug in sanitizers
a5e8ab2 ci: Add sanitizer env variables to debug output
84a93de ci: Add workaround for ASLR bug in sanitizers
427e86b Merge bitcoin-core/secp256k1#1490: tests: improve fe_sqr test (issue #1472)
2028069 doc: clarify input requirements for secp256k1_fe_mul
11420a7 tests: improve fe_sqr test
cdc9a62 Merge bitcoin-core/secp256k1#1489: tests: add missing fe comparison checks for inverse field test cases
d926510 Merge bitcoin-core/secp256k1#1496: msan: notate variable assignments from assembly code
31ba404 msan: notate variable assignments from assembly code
e7ea32e msan: Add SECP256K1_CHECKMEM_MSAN_DEFINE which applies to memory sanitizer and not valgrind
e7bdddd refactor: rename `check_fe_equal` -> `fe_equal`
00111c9 tests: add missing fe comparison checks for inverse field test cases
0653a25 Merge bitcoin-core/secp256k1#1486: ci: Update cache action
94a14d5 ci: Update cache action
2483627 Merge bitcoin-core/secp256k1#1483: cmake: Recommend native CMake commands in README
5ad3aa3 Merge bitcoin-core/secp256k1#1484: tests: Drop redundant _scalar_check_overflow calls
51df2d9 tests: Drop redundant _scalar_check_overflow calls
3777e3f cmake: Recommend native CMake commands in README
e4af41c Merge bitcoin-core/secp256k1#1249: cmake: Add `SECP256K1_LATE_CFLAGS` configure option
3bf4d68 Merge bitcoin-core/secp256k1#1482: build: Clean up handling of module dependencies
e682267 build: Error if required module explicitly off
89ec583 build: Clean up handling of module dependencies
4437886 Merge bitcoin-core/secp256k1#1468: v0.4.1 release aftermath
a9db9f2 Merge bitcoin-core/secp256k1#1480: Get rid of untested sizeof(secp256k1_ge_storage) == 64 code path
74b7c3b Merge bitcoin-core/secp256k1#1476: include: make docs more consistent
b37fdb2 check-abi: Minor UI improvements
ad5f589 check-abi: Default to HEAD for new version
9fb7e2f release process: Style and formatting nits
ba5d72d assumptions: Use new STATIC_ASSERT macro
e53c2d9 Require that sizeof(secp256k1_ge_storage) == 64
d0ba2ab util: Add STATIC_ASSERT macro
da7bc1b include: in doc, remove article in front of "pointer"
aa3dd52 include: make doc about ctx more consistent
e3f6900 include: remove obvious "cannot be NULL" doc
d373bf6 Merge bitcoin-core/secp256k1#1474: tests: restore scalar_mul test
79e0945 Merge bitcoin-core/secp256k1#1473: Fix typos
3dbfb48 tests: restore scalar_mul test
d77170a Fix typos
e7053d0 release process: Add email step
429d21d release process: Run sanity checks on release PR
efe85c7 Merge bitcoin-core/secp256k1#1466: release cleanup: bump version after 0.4.1
4b2e06f release cleanup: bump version after 0.4.1
1ad5185 Merge bitcoin-core/secp256k1#1465: release: prepare for 0.4.1
672053d release: prepare for 0.4.1
1a81df8 Merge bitcoin-core/secp256k1#1380: Add ABI checking tool for release process
74a4d97 doc: Add ABI checking with `check-abi.sh` to the Release Process
e7f830e Add `tools/check-abi.sh`
77af1da Merge bitcoin-core/secp256k1#1455: doc: improve secp256k1_fe_set_b32_mod doc
3928b7c doc: improve secp256k1_fe_set_b32_mod doc
5e9a4d7 Merge bitcoin-core/secp256k1#990: Add comment on length checks when parsing ECDSA sigs
4197d66 Merge bitcoin-core/secp256k1#1431: Add CONTRIBUTING.md
0e5ea62 CONTRIBUTING: add some coding and style conventions
e2c9888 Merge bitcoin-core/secp256k1#1451: changelog: add entry for "field: Remove x86_64 asm"
d2e36a2 changelog: add entry for "field: Remove x86_64 asm"
1a432cb README: update first sentence
0922a04 docs: move coverage report instructions to CONTRIBUTING
76880e4 Add CONTRIBUTING.md including scope and guidelines for new code
d3e29db Merge bitcoin-core/secp256k1#1450: Add group.h ge/gej equality functions
04af0ba Replace ge_equals_ge[,j] calls with group.h equality calls
60525f6 Add unit tests for group.h equality functions
a47cd97 Add group.h ge/gej equality functions
10e6d29 Merge bitcoin-core/secp256k1#1446: field: Remove x86_64 asm
07687e8 Merge bitcoin-core/secp256k1#1393: Implement new policy for VERIFY_CHECK and #ifdef VERIFY (issue #1381)
bb46723 remove VERIFY_SETUP define
a3a3e11 remove unneeded VERIFY_SETUP uses in ECMULT_CONST_TABLE_GET_GE macro
a0fb68a introduce and use SECP256K1_SCALAR_VERIFY macro
cf25c86 introduce and use SECP256K1_{FE,GE,GEJ}_VERIFY macros
5d89bc0 remove superfluous `#ifdef VERIFY`/`#endif` preprocessor conditions
c2688f8 redefine VERIFY_CHECK to empty in production (non-VERIFY) mode
5814d84 Merge bitcoin-core/secp256k1#1438: correct assertion for secp256k1_fe_mul_inner
c1b4966 Merge bitcoin-core/secp256k1#1445: bench: add --help option to bench_internal
f07cead build: Don't call assembly an optimization
2f0762f field: Remove x86_64 asm
1ddd76a bench: add --help option to bench_internal
e721039 Merge bitcoin-core/secp256k1#1441: asm: add .note.GNU-stack section for non-exec stack
ea47c82 Merge bitcoin-core/secp256k1#1442: Return temporaries to being unsigned in secp256k1_fe_sqr_inner
dcdda31 Tighten secp256k1_fe_mul_inner's VERIFY_BITS checks
1027135 Return temporaries to being unsigned in secp256k1_fe_sqr_inner
33dc7e4 asm: add .note.GNU-stack section for non-exec stack
c891c5c Merge bitcoin-core/secp256k1#1437: ci: Ignore internal errors of snapshot compilers
8185e72 ci: Ignore internal errors in snapshot compilers
40f50d0 Merge bitcoin-core/secp256k1#1184: Signed-digit based ecmult_const algorithm
8e2a5fe correct assertion for secp256k1_fe_mul_inner
355bbdf Add changelog entry for signed-digit ecmult_const algorithm
21f49d9 Remove unused secp256k1_scalar_shr_int
115fdc7 Remove unused secp256k1_wnaf_const
aa9f3a3 ecmult_const: add/improve tests
4d16e90 Signed-digit based ecmult_const algorithm
ba523be make SECP256K1_SCALAR_CONST reduce modulo exhaustive group order
2140da9 Add secp256k1_scalar_half for halving scalars (+ tests/benchmarks).
1f1bb78 Merge bitcoin-core/secp256k1#1430: README: remove CI badge
5dab0ba README: remove CI badge
b314cf2 Merge bitcoin-core/secp256k1#1426: ci/cirrus: Add native ARM64 jobs
fa4d6c7 ci/cirrus: Add native ARM64 persistent workers
ee7aaf2 Merge bitcoin-core/secp256k1#1395: tests: simplify `random_fe_non_zero` (remove loop limit and unneeded normalize)
ba9cb6f Merge bitcoin-core/secp256k1#1424: ci: Bump major versions for docker actions
d9d80fd ci: Bump major versions for docker actions
4fd00f4 Merge bitcoin-core/secp256k1#1422: cmake: Install `libsecp256k1.pc` file
421d848 ci: Align Autotools/CMake `CI_INSTALL` directory names
9f005c6 cmake: Install `libsecp256k1.pc` file
2262d0e ci/cirrus: Bring back skeleton .cirrus.yml without jobs
b10ddd2 Merge bitcoin-core/secp256k1#1416: doc: Align documented scripts with CI ones
49be5be Merge bitcoin-core/secp256k1#1390: tests: Replace counting_illegal_callbacks with CHECK_ILLEGAL_VOID
cbf3053 Merge bitcoin-core/secp256k1#1417: release cleanup: bump version after 0.4.0
9b118bc release cleanup: bump version after 0.4.0
199d27c Merge bitcoin-core/secp256k1#1415: release: Prepare for 0.4.0
7030364 tests: add CHECK_ERROR_VOID and use it in scratch tests
f8d7ea6 tests: Replace counting_illegal_callbacks with CHECK_ILLEGAL_VOID
1633980 release: Prepare for 0.4.0
d9a8506 changelog: Catch up in preparation of release
b0f7bfe doc: Do not mention soname in CHANGELOG.md "ABI Compatibility" section
bd9d98d doc: Align documented scripts with CI ones
0b4640a Merge bitcoin-core/secp256k1#1413: ci: Add `release` job
8659a01 ci: Add `release` job
f9b3889 ci: Update `actions/checkout` version
a1d52e3 tests: remove unnecessary test in run_ec_pubkey_parse_test
875b0ad tests: remove unnecessary set_illegal_callback
727bec5 Merge bitcoin-core/secp256k1#1414: ci/gha: Add ARM64 QEMU jobs for clang and clang-snapshot
2635068 ci/gha: Let MSan continue checking after errors in all jobs
e78c7b6 ci/Dockerfile: Reduce size of Docker image further
2f0d3bb ci/Dockerfile: Warn if `ulimit -n` is too high when running Docker
4b8a647 ci/gha: Add ARM64 QEMU jobs for clang and clang-snapshot
6ebe7d2 ci/Dockerfile: Always use versioned clang packages
65c79fe Merge bitcoin-core/secp256k1#1412: ci: Switch macOS from Ventura to Monterey and add Valgrind
c223d7e ci: Switch macOS from Ventura to Monterey and add Valgrind
ea26b71 Merge bitcoin-core/secp256k1#1411: ci: Make repetitive command the default one
cce0456 ci: Make repetitive command the default one
317a4c4 ci: Move `git config ...` to `run-in-docker-action`
4d7fe60 Merge bitcoin-core/secp256k1#1409: ci: Move remained task from Cirrus to GitHub Actions
676ed8f ci: Move "C++ (public headers)" from Cirrus to GitHub Actions
61fc3a2 ci: Move "C++ -fpermissive..." from Cirrus to GitHub Actions
d51fb0a ci: Move "MSan" from Cirrus to GitHub Actions
c22ac27 ci: Move sanitizers task from Cirrus to GitHub Actions
26a9899 Merge bitcoin-core/secp256k1#1410: ci: Use concurrency for pull requests only
ee1be62 ci: Use concurrency for pull requests only
6ee1455 Merge bitcoin-core/secp256k1#1406: ci, gha: Move more non-x86_64 tasks from Cirrus CI to GitHub Actions
fc3dea2 ci: Move "ppc64le: Linux..." from Cirrus to GitHub Actions
7782dc8 ci: Move "ARM64: Linux..." from Cirrus to GitHub Actions
0a16de6 ci: Move "ARM32: Linux..." from Cirrus to GitHub Actions
ea33914 ci: Move "s390x (big-endian): Linux..." from Cirrus to GitHub Actions
880be8a ci: Move "i686: Linux (Debian stable)" from Cirrus to GiHub Actions
2e6cf9b Merge bitcoin-core/secp256k1#1396: ci, gha: Add "x86_64: Linux (Debian stable)" GitHub Actions job
5373693 Merge bitcoin-core/secp256k1#1405: ci: Drop no longer needed workaround
ef9fe95 ci: Drop no longer needed workaround
e10878f ci, gha: Drop `driver-opts.network` input for `setup-buildx-action`
4ad4914 ci, gha: Add `retry_builder` Docker image builder
6617a62 ci: Remove "x86_64: Linux (Debian stable)" task from Cirrus CI
03c9e65 ci, gha: Add "x86_64: Linux (Debian stable)" GitHub Actions job
ad3e65d ci: Remove GCC build files and sage to reduce size of Docker image
6b9507a Merge bitcoin-core/secp256k1#1398: ci, gha: Add Windows jobs based on Linux image
87d35f3 ci: Rename `cirrus.sh` to more general `ci.sh`
d6281dd ci: Remove Windows tasks from Cirrus CI
2b6f9cd ci, gha: Add Windows jobs based on Linux image
48b1d93 Merge bitcoin-core/secp256k1#1403: ci, gha: Ensure only a single workflow processes `github.ref` at a time
0ba2b94 Merge bitcoin-core/secp256k1#1373: Add invariant checking for scalars
c45b7c4 refactor: introduce testutil.h (deduplicate `random_fe_`, `ge_equals_` helpers)
dc55141 tests: simplify `random_fe_non_zero` (remove loop limit and unneeded normalize)
060e32c Merge bitcoin-core/secp256k1#1401: ci, gha: Run all MSVC tests on Windows natively
de657c2 Merge bitcoin-core/secp256k1#1062: Removes `_fe_equal_var`, and unwanted `_fe_normalize_weak` calls (in tests)
bcffeb1 Merge bitcoin-core/secp256k1#1404: ci: Remove "arm64: macOS Ventura" task from Cirrus CI
c2f6435 ci: Add comment about switching macOS to M1 on GHA later
4a24fae ci: Remove "arm64: macOS Ventura" task from Cirrus CI
b0886fd ci, gha: Ensure only a single workflow processes `github.ref` at a time
3d05c86 Merge bitcoin-core/secp256k1#1394: ci, gha: Run "x86_64: macOS Ventura" job on GitHub Actions
d78bec7 ci: Remove Windows MSVC tasks from Cirrus CI
3545dc2 ci, gha: Run all MSVC tests on Windows natively
5d8fa82 Merge bitcoin-core/secp256k1#1274: test: Silent noisy clang warnings about Valgrind code on macOS x86_64
8e54a34 ci, gha: Run "x86_64: macOS Ventura" job on GitHub Actions
b327abf Merge bitcoin-core/secp256k1#1402: ci: Use Homebrew's gcc in native macOS task
d62db57 ci: Use Homebrew's gcc in native macOS task
54058d1 field: remove `secp256k1_fe_equal_var`
bb4efd6 tests: remove unwanted `secp256k1_fe_normalize_weak` call
eedd781 Merge bitcoin-core/secp256k1#1348: tighten group magnitude limits, save normalize_weak calls in group add methods (revival of #1032)
b2f6712 Merge bitcoin-core/secp256k1#1400: ctimetests: Use new SECP256K1_CHECKMEM macros also for ellswift
9c91ea4 ci: Enable ellswift module where it's missing
db32a24 ctimetests: Use new SECP256K1_CHECKMEM macros also for ellswift
ce765a5 Merge bitcoin-core/secp256k1#1399: ci, gha: Run "SageMath prover" job on GitHub Actions
8408dfd Revert "ci: Run sage prover on CI"
c8d9914 ci, gha: Run "SageMath prover" job on GitHub Actions
8d2960c Merge bitcoin-core/secp256k1#1397: ci: Remove "Windows (VS 2022)" task from Cirrus CI
f1774e5 ci, gha: Make MSVC job presentation more explicit
5ee039b ci: Remove "Windows (VS 2022)" task from Cirrus CI
96294c0 Merge bitcoin-core/secp256k1#1389: ci: Run "Windows (VS 2022)" job on GitHub Actions
a2f7ccd ci: Run "Windows (VS 2022)" job on GitHub Actions
374e2b5 Merge bitcoin-core/secp256k1#1290: cmake: Set `ENVIRONMENT` property for examples on Windows
1b13415 Merge bitcoin-core/secp256k1#1391: refactor: take use of `secp256k1_scalar_{zero,one}` constants (part 2)
a1bd497 refactor: take use of `secp256k1_scalar_{zero,one}` constants (part 2)
b7c685e Save _normalize_weak calls in group add methods
c83afa6 Tighten group magnitude limits
26392da Merge bitcoin-core/secp256k1#1386: ci: print $ELLSWIFT in cirrus.sh
d23da6d use secp256k1_scalar_verify checks
4692478 ci: print $ELLSWIFT in cirrus.sh
c7d0454 add verification for scalars
c734c64 Merge bitcoin-core/secp256k1#1384: build: enable ellswift module via SECP_CONFIG_DEFINES
ad15215 update max scalar in scalar_cmov_test and fix schnorrsig_verify exhaustive test
78ca880 build: enable ellswift module via SECP_CONFIG_DEFINES
0e00fc7 Merge bitcoin-core/secp256k1#1383: util: remove unused checked_realloc
b097a46 util: remove unused checked_realloc
2bd5f3e Merge bitcoin-core/secp256k1#1382: refactor: Drop unused cast
4f8c5bd refactor: Drop unused cast
173e8d0 Implement current magnitude assumptions
49afd2f Take use of _fe_verify_magnitude in field_impl.h
4e9661f Add _fe_verify_magnitude (no-op unless VERIFY is enabled)
690b0fc add missing group element invariant checks
175db31 ci: Drop no longer needed `PATH` variable update on Windows
116d2ab cmake: Set `ENVIRONMENT` property for examples on Windows
cef3739 cmake, refactor: Use helper function instead of interface library
747ada3 test: Silent noisy clang warnings about Valgrind code on macOS x86_64
42f8c51 cmake: Add `SECP256K1_LATE_CFLAGS` configure option
e02f313 Add comment on length checks when parsing ECDSA sigs

git-subtree-dir: src/secp256k1
git-subtree-split: e3a885d42a7800c1ccebad94ad1e2b82c4df5c65
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Policy for VERIFY_CHECK and #ifdef VERIFY
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