crypto-common: migrate to `hybrid-array`; MSRV 1.65 by tarcieri · Pull Request #1319 · RustCrypto/traits

tarcieri · 2023-05-30T23:35:57Z

Replaces generic-array with hybrid-array, which is built on a combination of typenum and const generics, providing a degree of interoperability between the two systems.

hybrid-array is designed to be a largely drop-in replacement, and the number of changes required to switch are relatively minimal aside from some idiosyncracies.

crypto-common/src/lib.rs

newpavlov

Looks good, but it would be nice to see migration of the other trait crates as well to be safe against potential unforeseen issues.

Builds on RustCrypto/traits#1319. Migrates the following crates away from using `generic-array` to using `hybrid-array` instead: - `block-buffer` - `block-padding` - `dbl` - `inout`

tarcieri · 2023-09-05T01:50:30Z

Since block-buffer depends on crypto-common, I've opened the next step of this migration in the utils repo: RustCrypto/utils#944

Builds on RustCrypto/traits#1319. Migrates the following crates away from using `generic-array` to using `hybrid-array` instead: - `block-buffer` - `block-padding` - `dbl` - `inout`

newpavlov · 2023-09-13T14:59:46Z

generic-array v1.0 has implemented Try/From for arrays using const generics and simplified the ArrayLength trait. Is this PR still relevant in the light of it?

tarcieri · 2023-09-13T15:04:34Z

Yes, hybrid-array is natively built on const generic arrays at its core. Array is a newtype of the inner array type, which is pub.

generic-array instead has an opaque inner type and uses large amounts of unsafe code to achieve its goals. It has wrappers to use const generics which use a similar technique to hybrid-array (and thus have similar limitations), but if you use that approach like hybrid-array has done you can go all-in and get rid of (most of) the unsafe code.

newpavlov · 2023-09-13T15:08:20Z

Ok. Should we migrate to generic-array v1.0 in the next release cycle first or would you prefer to try hybrid-array migration without it?

tarcieri · 2023-09-13T15:09:52Z

Personally I'd prefer to go straight to hybrid-array and have already done some of the work, see also RustCrypto/utils#944

I can do cipher and digest next.

Builds on RustCrypto/traits#1319. Migrates the following crates away from using `generic-array` to using `hybrid-array` instead: - `block-buffer` - `block-padding` - `dbl` - `inout`

tarcieri · 2023-10-26T01:37:35Z

The minimal-versions failure seems to be a nightly regression and probably impacts master as well

Replaces `generic-array` with `hybrid-array`, which is built on a combination of `typenum` and const generics, providing a degree of interoperability between the two systems. `hybrid-array` is designed to be a largely drop-in replacement, and the number of changes required to switch are relatively minimal aside from some idiosyncracies.

tarcieri · 2023-10-26T15:23:19Z

@newpavlov this is ready now

newpavlov

Can you also change bound for the BlockSize sealed impl from Self: IsLess<U256> + IsGreater<U1> to Self: IsLess<U256> + IsGreater<U0>? I intended to do it in #1174.

crypto-common/src/lib.rs

The `ArraySize` trait already bounds on `'static`

### Added - Sealed `BlockSizes` trait implemented for types from `U1` to `U255` ([#1172]) - `SerializableState` trait under `hazmat` module ([#1369]) - `OutputSize` type alias ([#1533]) - `IvState` trait ([#1636]) - `core::error::Error` impls for error types ([#1660]) - `Generate` trait as a common RNG API ([#2096], [#2145]) - `TryKeyInit` trait ([#2097]) - Re-export `getrandom` ([#2152]) - `KeyExport` trait ([#2213]) ### Changed - Replaced `generic-array` with `hybrid-array` ([#1319], [#1976]) - `BlockUser::BlockSize` is now bounded by the `BlockSizes` trait - Edition changed to 2024 and MSRV bumped to 1.85 ([#1759]) - `generate_*` methods on `KeyInit` and `KeyIvInit` traits have been deprecated in favor of the new `Generate` trait ([#2162]) - Bump `rand_core` to v0.10 ([#2250]) - Bump `getrandom` to v0.4 ([#2258]) ### Removed - `std` feature ([#1680]) [#1172]: #1172 [#1319]: #1319 [#1369]: #1369 [#1533]: #1533 [#1636]: #1636 [#1660]: #1660 [#1680]: #1680 [#1759]: #1759 [#1976]: #1976 [#2096]: #2096 [#2097]: #2097 [#2145]: #2145 [#2152]: #2152 [#2162]: #2162 [#2213]: #2213 [#2250]: #2250 [#2258]: #2258

tarcieri requested a review from newpavlov May 30, 2023 23:35

tarcieri commented May 30, 2023

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tarcieri commented May 30, 2023

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tarcieri force-pushed the crypto-common/hybrid-array branch 3 times, most recently from 5e808f0 to 0856ad0 Compare May 31, 2023 02:57

newpavlov reviewed May 31, 2023

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tarcieri force-pushed the crypto-common/hybrid-array branch 3 times, most recently from 5a6327f to 0c9a9bb Compare September 5, 2023 01:34

tarcieri mentioned this pull request Sep 5, 2023

Migrate to hybrid-array; MSRV 1.65 RustCrypto/utils#944

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tarcieri force-pushed the crypto-common/hybrid-array branch from 0c9a9bb to 9a65db3 Compare September 5, 2023 19:13

sinui0 mentioned this pull request Sep 13, 2023

Update RustCrypto dependencies to next release candidate and migrate to hybrid-array privacy-ethereum/mpz#61

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tarcieri mentioned this pull request Sep 22, 2023

Bump dependency on generic-array to version 1.0.0 RustCrypto/AEADs#553

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tarcieri mentioned this pull request Oct 8, 2023

[WIP] cipher: migrate to hybrid array #1357

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tarcieri mentioned this pull request Oct 8, 2023

cipher+digest: migrate to hybrid array; MSRV 1.65 #1358

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tarcieri force-pushed the crypto-common/hybrid-array branch 2 times, most recently from 2854b76 to 11330b0 Compare October 26, 2023 01:30

tarcieri changed the title ~~[WIP] crypto-common: migrate to hybrid-array; MSRV 1.65~~ crypto-common: migrate to hybrid-array; MSRV 1.65 Oct 26, 2023

tarcieri force-pushed the crypto-common/hybrid-array branch from 11330b0 to 3ada46b Compare October 26, 2023 15:02

tarcieri marked this pull request as ready for review October 26, 2023 15:22

tarcieri requested a review from newpavlov October 26, 2023 15:23

newpavlov approved these changes Oct 26, 2023

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tarcieri added 2 commits October 26, 2023 10:34

crypto-common: remove 'static bounds on ArraySizes

c3ede80

The `ArraySize` trait already bounds on `'static`

crypto-common: allow U1-sized BlockSizes

2542396

tarcieri requested a review from newpavlov October 26, 2023 16:37

newpavlov approved these changes Oct 26, 2023

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tarcieri merged commit 766c138 into master Oct 26, 2023

tarcieri deleted the crypto-common/hybrid-array branch October 26, 2023 17:19

akoshelev mentioned this pull request Mar 27, 2024

Hashing functionality needed to support Fiat-Shamir private-attribution/ipa#993

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This was referenced Sep 18, 2024

deprecate use of GenericArray lora-rs/lora-rs#126

Closed

Migration guide from GenericArray? RustCrypto/hybrid-array#91

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ifsheldon mentioned this pull request Nov 15, 2025

Upgrade and clean dependencies jasonwhite/rudolfs#82

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tarcieri mentioned this pull request Feb 3, 2026

crypto-common v0.2.0 #2276

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crypto-common: migrate to `hybrid-array`; MSRV 1.65#1319

crypto-common: migrate to `hybrid-array`; MSRV 1.65#1319
tarcieri merged 3 commits intomasterfrom
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