houseme 5a424219d2 perf(signer): cache signing key to avoid redundant HMAC-SHA256 (#6651) ...

* perf(signer): cache signing key to avoid redundant HMAC-SHA256

Cache the AWS4 signing key per (secret, region, date, service_type)
tuple. The signing key is derived from 4 HMAC-SHA256 calls and is
constant for a given user within the same UTC day, so caching it
eliminates ~0.5-1ms of redundant crypto per request.

The cache uses a LazyLock<Mutex<HashMap>> with automatic daily
rotation (cache entries naturally expire when the date component
of the key changes).

Refs: https://github.com/rustfs/backlog/issues/2005

Co-Authored-By: heihutu <heihutu@gmail.com>

* fix(signer): bound signing key cache

* fix(signer): satisfy cache lint

---------

Co-authored-by: heihutu <heihutu@gmail.com>
Co-authored-by: overtrue <anzhengchao@gmail.com>

2026-08-26 17:00:00 +08:00

..

constants.rs

chore: Add copyright and license headers (#23)

2025-07-02 15:07:47 +08:00

lib.rs

fix(io-core,signer): replace unwrap() with proper error handling (#3150)

2026-05-31 23:40:20 +00:00

request_signature_streaming_unsigned_trailer.rs

fix(signer): address post-merge review comments (#3216)

2026-06-04 22:45:50 +00:00

request_signature_streaming.rs

chore: adjudicate the last 18 bare dead_code allows in the library crates (#6265)

2026-08-19 17:55:58 +00:00

request_signature_v2.rs

fix(signer): use real timestamp and standard base64 for SigV2 (#4456)

2026-07-08 17:02:01 +08:00

request_signature_v4.rs

perf(signer): cache signing key to avoid redundant HMAC-SHA256 (#6651)

2026-08-26 17:00:00 +08:00

utils.rs

fix(signer): address post-merge review comments (#3216)

2026-06-04 22:45:50 +00:00