JSON-Rohbericht maschinenlesbar
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"bignum",
"modular-arithmetic",
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"pushed_at": "2026-07-21T15:20:55Z",
"created_at": "2025-08-08T16:41:28Z",
"owner_type": "User",
"updated_at": "2026-07-20T02:25:29Z",
"description": "Modular math primitives in Rust",
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"blog": null,
"name": "Kaido Kert",
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"location": "San Francisco, CA",
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"releases": [
{
"tag": "v0.6.0",
"kind": "minor",
"published_at": "2026-07-19T02:26:30Z"
},
{
"tag": "cios-0.1.2",
"kind": "other",
"published_at": "2026-07-12T06:41:15Z"
},
{
"tag": "v0.4.2",
"kind": "patch",
"published_at": "2026-07-09T03:41:57Z"
},
{
"tag": "cios-0.1.1",
"kind": "other",
"published_at": "2026-07-08T06:05:10Z"
},
{
"tag": "v0.4.1",
"kind": "patch",
"published_at": "2026-07-07T04:31:48Z"
},
{
"tag": "v0.4.0",
"kind": "minor",
"published_at": "2026-07-05T20:38:46Z"
},
{
"tag": "cios-0.1.0",
"kind": "other",
"published_at": "2026-07-05T07:48:42Z"
},
{
"tag": "v0.3.1",
"kind": "patch",
"published_at": "2026-06-16T07:32:15Z"
},
{
"tag": "v0.2.0",
"kind": "minor",
"published_at": "2026-06-01T04:22:16Z"
},
{
"tag": "v0.1.5",
"kind": "patch",
"published_at": "2026-03-06T09:05:32Z"
},
{
"tag": "v0.1.4",
"kind": "patch",
"published_at": "2026-03-05T09:14:25Z"
},
{
"tag": "v0.1.3",
"kind": "patch",
"published_at": "2026-02-24T06:24:12Z"
},
{
"tag": "v0.1.2",
"kind": "patch",
"published_at": "2025-08-11T05:08:20Z"
},
{
"tag": "v0.1.1",
"kind": "patch",
"published_at": "2025-08-09T08:07:10Z"
}
],
"recent_commits": [
{
"oid": "f00ec243739b62a71763e4867c7c960426eaba4d",
"body": "Additive minor over 0.6.0: adds the non-`Copy` `SchoolbookFieldRef<T>` verify\nfield (heap/`Clone` carriers drive verify via `FieldOps`, delegating to the\n`constrained_*` free functions). No breaking changes. Validated downstream on the\n`v0.6.1-alpha.1` tag.",
"is_bot": false,
"headline": "release: modmath 0.6.1 (#46)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-20T02:25:25Z",
"body_truncated": false,
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},
{
"oid": "19e50167f68a2e39e40ff15da7fc15d9e88dc35f",
"body": "const-12 fixes `FixedWidthBigUint::one()`/`zero()`, which declared `n_limbs: 0`\n(width 0) — inconsistent with `from(uN)`'s `.max(1)`. Width 0 made the carrier's\ndeclared-width `wrapping_add` mask sums built from `T::one()`/`T::zero()` to 0\n(e.g. the R>N Montgomery trial-search `n_prime` loop hung). \n[…]\n leniently), so the green suite now demonstrates\nthat modmath's arithmetic does not depend on carrier overflow *leniency*: the\nR>N Montgomery path is exercised against a masking-wrapping heap carrier.",
"is_bot": false,
"headline": "bump num-bigint dev-carrier to v0.4.4-const-12 (#45)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-20T00:17:10Z",
"body_truncated": true,
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{
"oid": "2b6eb0f5ce2901f16236d5321ed699f6a3340345",
"body": "* feat: SchoolbookFieldRef — non-Copy (heap/Clone) verify field\n\nThe ecosystem verify-carrier audit's keystone: a `FieldOps` strategy that lets a\nheap/`Clone` carrier (num-bigint `FixedWidthBigUint`) drive the verify surface\nwithout the `Copy` Montgomery/CIOS path. Additive — the `Copy` `SchoolbookField`,\nMontgomery `Field`, and `Field<Ct>` are untouched; the new type is Nct-only (no\n`subtle`), so it cannot resolve for a constant-time path.",
"is_bot": false,
"headline": "feat: SchoolbookFieldRef — non-Copy (heap/Clone) verify field (#44)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-19T22:06:14Z",
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{
"oid": "1538f80eec728ff5006ee90a22ab2763ca6216a2",
"body": "* docs: drop shipped panic TODO, note the Field surface in README\n\n- README: add a one-line bullet for the `Field<T>` residue surface (the\n width-carrying entry point from 0.6.0); it listed only the free functions.\n\n* docs: remove TODO.md",
"is_bot": false,
"headline": "docs: remove TODO.md, note the Field surface in README (#42)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-19T00:55:24Z",
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{
"oid": "2300d4ca01d652b58d8a6e8f1ede17ef73f591f0",
"body": "…ace (#41)\n\n* modmath 0.6.0: width-carrying FieldOps, retire the raw-`T` `_pr` surface\n\nMotivated by making a runtime-width carrier (`HeaplessBigInt`: fixed capacity, \nruntime length) behave correctly under modular arithmetic — where a value's \nstored width reflects its magnitude, not the ring it lives in, so width-sensitive \nops can fire at the wrong bit and truncate.",
"is_bot": false,
"headline": "modmath 0.6.0: width-carrying FieldOps, retire the raw-`T` `_pr` surf…",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-19T00:07:19Z",
"body_truncated": false,
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{
"oid": "bcb184a9452d0ba9a9c7c6864aa180da28f3dc8d",
"body": "Now that modmath-cios 0.1.2 is on the registry, the two accumulator\nsites move from T::default() to modulus.cios_accumulator(). Identical\nfor every current carrier (their Default is a full-width zero); the\npoint is that a runtime-width carrier can now size the accumulator from\nthe modulus operand. Closes the driver half of the HeaplessBigInt\nspec's CiosRowOps decision.",
"is_bot": false,
"headline": "Adopt cios_accumulator() in the CIOS driver (#37)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-12T06:52:55Z",
"body_truncated": false,
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{
"oid": "75286c66416a0b7676d8197aabb876250e6fe251",
"body": "* modmath-cios 0.1.2: add defaulted cios_accumulator()\n\nCiosRowOps baked in that the product accumulator is Self::default().\nThat's fine for fixed-width carriers — their Default is already a\nfull-width zero — but a runtime-width carrier's natural Default is the\nmathematical zero at logical length 0,\n[…]\nerride just the accumulator while keeping a sensible Default. The\ndefault body makes this non-breaking: every existing impl (primitives,\nFixedUInt) inherits it unchanged, so it's a 0.1.2, not a 0.2.0.",
"is_bot": false,
"headline": "modmath-cios 0.1.2: add defaulted cios_accumulator() (#36)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-12T06:38:22Z",
"body_truncated": true,
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{
"oid": "85a4d161f8381bd6795f191201ec4254d22730cc",
"body": "* Re-enable the third-party backend test matrix for the const forks\n\nThe bnum and crypto-bigint kaidokert forks (v0.14.4-const-8 /\nv0.7.5-const-8) now carry const-num-traits 0.2 and modmath-cios impls\n— proven end-to-end in the krabitls backend-swap experiments — so the\ntest matrices disabled since the const-num-traits migration come back\nfor both, as git-tag dev-dependencies (dropped on publish, invisible\nto consumers).",
"is_bot": false,
"headline": "Re-enable the third-party backend test matrix for the const forks (#35)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-12T00:12:05Z",
"body_truncated": false,
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{
"oid": "ba23e469a94a66c150b9506b666f3ad04bbc3a90",
"body": "* Migrate to const-num-traits 0.2.0-alpha.1 (git tag)\n\ncnt 0.2 decouples the named-op traits from their core::ops twins via a\nfresh associated Output, so every op bound now pins it explicitly and the plain\ncore::ops::Add/Sub/Mul pins that 0.1's coupling forced onto the CT\nwhere-clauses are gone: the\n[…]\narries the result type\nitself. A backend can now satisfy the whole CT surface without\nimplementing plain operators at all, which is the point of this\nmigration for the crypto-bigint/bnum integrations.",
"is_bot": false,
"headline": "v0.5.0: migrate to const-num-traits 0.2 (#34)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-10T07:40:11Z",
"body_truncated": true,
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{
"oid": "148bbab1efcf283494ac61ba0f5497425d1506a6",
"body": "Ships #32's where-clause relaxations: the CT surface no longer demands\nCtIsZero/Zero/Parity/ConstantTimeEq/CiosMontMulCt/Shl where nothing\nuses them, which is what third-party backend integrations (crypto-\nbigint, bnum) actually consume. Relaxed bounds are non-breaking, so a\npatch bump.",
"is_bot": false,
"headline": "v0.4.3 (#33)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-09T05:10:59Z",
"body_truncated": false,
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},
{
"oid": "e780dd03f28662f9f58614506eef67ae7a5a00a4",
"body": null,
"is_bot": false,
"headline": "Shed vestigial bounds from the CT where-clauses (#32)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-09T05:06:56Z",
"body_truncated": false,
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},
{
"oid": "9421c34298f78ba3d6713610ceb7268910c8e333",
"body": "* v0.4.2: refresh README, fill rustdoc gaps\n\nREADME caught up with the 0.4 line: const-num-traits (not num_traits),\nthe Field typestate and both entry styles, the constant-time inverse\nand CIOS in the feature list, and a pointer to the ct-verify harnesses.\nThe overall framing stays modest — generic-over-fast is still the\npitch.",
"is_bot": false,
"headline": "v0.4.2: refresh README, fill rustdoc gaps (#31)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-09T03:40:05Z",
"body_truncated": false,
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},
{
"oid": "c1d3012e5843b3024e56dad0a51207ecf94567db",
"body": "* Add panic-free audit; make safegcd's top-bit mask panic-proof\n\nNew ct-verify member exercising the CT surface the way a deployed\nconsumer would — no unwrap, Odd::new_unchecked at the trust boundary,\nCtOption results observed through black_box. check.sh cross-builds the\nstaticlib with the pinned re\n[…]\n\ncore::panicking machinery was synthesized; for CT code a reachable\npanic is both a DoS edge and a timing oracle. CI runs it on thumbv7m\nand riscv32imc (the property is codegen-level, not per-target).",
"is_bot": false,
"headline": "Add panic-free audit; make safegcd's top-bit mask panic-proof (#30)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-08T14:42:58Z",
"body_truncated": true,
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{
"oid": "25d0faedc62fb05b1364c0559847b7f262ff8e37",
"body": "overflowing_add's carry flag has no branchless materialization on ISAs\nwithout a flags register: LLVM lowers the 64-bit carry-out as an\nequality-branch chain on operand-derived values on riscv32 — the\nfindings ct-driver documented in RISCV32_EXTRA_HELPERS. The wraparound\ntest sum.ct_lt(&a) (already \n[…]\ne idiom in safegcd's se_add and\nField::add) is pure mask arithmetic on every target and carries as\nsubtle::Choice end to end, so the Choice::from(bool) laundering at the\nfinalize sites disappears too.",
"is_bot": false,
"headline": "Carry detection via ct_lt across the CT wide-REDC path (#29)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-08T06:14:59Z",
"body_truncated": true,
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{
"oid": "f1a967ffa836f4c4fbf1133d0b285fd8f489ee36",
"body": "…t_row (#28)\n\nBy the operand types the carry cannot occur: product <= (2^b - 1)^2,\nso total <= 2^2b - 2^b and total_hi <= 2^b - 1; adding acc_hi\n(<= 2^b - 1) stays below 2^(b+1), which cannot wrap the double-wide\ntype. The overflowing_add guarded that impossible case, and its carry\nflag materialization is what LLVM lowered as data-dependent\nequality-branch chains on riscv32 (no flags register) — the u64-carrier\nfinding documented in ct-driver's RISCV32_EXTRA_HELPERS.",
"is_bot": false,
"headline": "modmath-cios 0.1.1: drop impossible carry from primitive mul_acc_shif…",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-08T06:04:31Z",
"body_truncated": false,
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},
{
"oid": "14c014e9fe6bd8a9158f73656c2958c530520bc2",
"body": "* Add ct-driver: cross-target asm-grep gate for the CT surface",
"is_bot": false,
"headline": "Add ct-driver: cross-target asm-grep gate for the CT surface (#27)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-08T05:02:30Z",
"body_truncated": false,
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},
{
"oid": "742624d0efc4fdb14706734c4f80f6ff31c47c9d",
"body": "* Add ct-ctgrind: Valgrind taint gate for the CT surface",
"is_bot": false,
"headline": "Add ct-ctgrind: Valgrind taint gate for the CT surface (#26)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-08T03:26:34Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "4cc63819cfecb8f858a8b73c6f6610bcf1a8ca86",
"body": "* safegcd: accept moduli that fill the carrier width",
"is_bot": false,
"headline": "safegcd: accept moduli that fill the carrier width (#25)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-07T04:29:57Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "2ad81df74810b8108f91b8262cdfacc1779bd1a1",
"body": "Drop patched sources",
"is_bot": false,
"headline": "Finalize v0.4.0 release",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-05T20:36:36Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "27eb96a31e523cdf0f6635a0e36b90059becce48",
"body": "…CT inverse (#23)\n\n* v0.4 migration + typestate cuts (Odd, *_nz, modmath-cios extraction)",
"is_bot": false,
"headline": "v0.4.0: const-num-traits migration, CT typestate discipline, safegcd …",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-07-05T07:46:07Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "32599a0221ca81693a73670648bf551bb5fc54ef",
"body": "* Add wide_montgomery_mul_acc for fused inner products\n\nAdds a wide multiply-accumulate primitive that produces a*b as a\ndouble-width pair and folds it into a caller-held (lo, hi) accumulator,\nreturning the new accumulator without reduction. Pair with wide_redc\nonce at the end to get a fused inner product / dot product / NTT\nmatrix-vector multiply that pays one REDC per output coefficient\ninstead of one per multiply.",
"is_bot": false,
"headline": "Add wide_montgomery_mul_acc for fused inner products (#19)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-06-16T07:29:00Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "ae202651cf3b4a548b5a22e49afa2f36e78ea74e",
"body": "* Add optional zeroize feature; drop Copy from Residue\n\nPlugs the secret-derived stack residue left behind by Montgomery\nladders. Adds a zeroize optional feature; with it enabled, Residue\nauto-wipes its Montgomery value on drop via Zeroize + ZeroizeOnDrop.\n\nResidue no longer derives Copy — every imp\n[…]\nould ever wipe, the exact leak vector the feature is designed\nto plug. Nct residues also lose Copy for typestate symmetry; callers\nthat previously relied on Copy pass by reference or .clone() instead.",
"is_bot": false,
"headline": "Add optional zeroize feature; drop Copy from Residue (#18)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-06-07T18:24:01Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "e331397ee0ca778f2f409ae6240605a10da3cc54",
"body": "* v0.2.0: Field/FieldCt lift, CT siblings, basic/constrained/strict module reorg\n\nMajor changes:\n\n- Adds modmath::Field<T> and modmath::FieldCt<T> with lifetime-branded\n Residue<'f, T> / ResidueCt<'f, T> as the canonical Montgomery surface.\n- Adds CT-finalize siblings throughout the Montgomery stac\n[…]\nduced) sibling functions to schoolbook surface so\n CT-aware code paths can drop the Rem bound.\n- wide-mul is now a default feature.\n- Subtle dep added (gated by wide-mul which pulls fixed-bigint/ct).",
"is_bot": false,
"headline": "Field/FieldCt lift, CT siblings, API reorg",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-06-01T04:17:48Z",
"body_truncated": true,
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{
"oid": "cc2b2d2c6e9849bdf4b91869a06eb4b88f84a8e2",
"body": "* Fix the trait",
"is_bot": false,
"headline": "Fix the trait (#16)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-03-06T09:02:36Z",
"body_truncated": false,
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},
{
"oid": "6d96ba686e19a760064ba19d14f3647deb3a6f33",
"body": "* Also expose REDC primitives",
"is_bot": false,
"headline": "Add a CIOS-based Montgomery multiplication path",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-03-05T09:13:29Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "05b41e76c6d0a7cf341c0133b26af7ade5e2c043",
"body": "* Consolidate wide-REDC into basic Montgomery path\n\nReplace broken basic_montgomery_mod_mul/mod_exp (mod_mul + reduction)\nwith correct wide-REDC implementations using R = 2^W. Add Newton as\nNPrimeMethod default. Add WideMul trait with generic fallback.",
"is_bot": false,
"headline": "Consolidate wide-REDC into basic Montgomery path (#12)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-02-24T06:21:59Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "ed2a62aaa0e28f00c4f1aab480bd3108fcba0282",
"body": "* Add Parity trait for optimized is_odd/is_even\n\nFeature-gated trait with two blanket impls:\n- Default: BitAnd fallback (all types work)\n- num-integer feature: delegates to Integer::is_odd()\n\n* Remove unused BitAnd bounds after Parity trait introduction",
"is_bot": false,
"headline": "Add Parity trait for optimized is_odd/is_even (#11)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-02-22T22:42:37Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "057359f0179a28545cc4936098058b1eb4f46cad",
"body": "* Apply bitmask optimization and Hensel canonicalization across all variants\nPort strict_mont.rs improvements to basic and constrained:\n- from_montgomery: use & mask instead of % r, add r_bits==0 guard\n- Hensel lifting: canonicalize N' to [0, R)\n- constrained mod_exp: use & one for parity, skip trai\n[…]\neating performance purpose\n- from_montgomery: document m*N overflow risk at key sizes\n- Both fixed in Phase 1 with WideningMul (see ROADMAP.md)\n- Fix misleading test comment about default NPrimeMethod",
"is_bot": false,
"headline": "Consolidate strict code (#8)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-02-22T06:19:58Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "e55d1d4fb45d952dd8e293845104d8c0d2477458",
"body": "Apply const_mod optimizations to basic/constrained/strict:\n- exp: use bitwise & for parity, fix modulus=1 edge case\n- mul: skip final doubling when b becomes zero",
"is_bot": false,
"headline": "Optimize mul and exp across all variants (#10)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-02-22T03:14:37Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "37fd2b43de1eff42f43285f8957fb62f3bae3d67",
"body": "* Add const-eval modular math\n\nAdd msrv and nightly",
"is_bot": false,
"headline": "Add const-eval modular math (#9)",
"author_name": "Kaido Kert",
"author_login": "kaidokert",
"committed_at": "2026-02-22T02:39:24Z",
"body_truncated": false,
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