Skip to content

Navigation Menu

Appearance settings

View all features
- BY COMPANY SIZE
  Enterprises
  Small and medium teams
  Startups
  Nonprofits
- BY USE CASE
  App Modernization
  DevSecOps
  DevOps
  CI/CD
  View all use cases
- BY INDUSTRY
  Healthcare
  Financial services
  Manufacturing
  Government
  View all industries
View all solutions
- EXPLORE BY TOPIC
  AI
  Software Development
  DevOps
  Security
  View all topics
- EXPLORE BY TYPE
  Customer stories
  Events & webinars
  Ebooks & reports
  Business insights
  GitHub Skills
- SUPPORT & SERVICES
  Documentation
  Customer support
  Community forum
  Trust center
  Partners
- COMMUNITY
  GitHub SponsorsFund open source developers
- PROGRAMS
  Security Lab
  Maintainer Community
  Accelerator
  Archive Program
- REPOSITORIES
  Topics
  Trending
  Collections
- ENTERPRISE SOLUTIONS
  Enterprise platformAI-powered developer platform
- AVAILABLE ADD-ONS
  GitHub Advanced SecurityEnterprise-grade security features
  Copilot for BusinessEnterprise-grade AI features
  Premium SupportEnterprise-grade 24/7 support
Pricing

Search code, repositories, users, issues, pull requests...

Search

Clear

Search syntax tips

Provide feedback

We read every piece of feedback, and take your input very seriously.

Include my email address so I can be contacted

Saved searches

Use saved searches to filter your results more quickly

Name

Query

To see all available qualifiers, see our documentation.

Appearance settings

You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Reload to refresh your session.

Dismiss alert

RustCrypto / stream-ciphers Public

Notifications You must be signed in to change notification settings
Fork 68
Star 311

Code
Issues 5
Pull requests 4
Actions
Security
Insights

Additional navigation options

Code
Issues
Pull requests
Actions
Security
Insights

chacha20: add an AVX-512 backend#477

Open

caelunshun wants to merge 9 commits intoRustCrypto:masterRustCrypto/stream-ciphers:masterfrom

caelunshun:chacha20-avx512caelunshun/stream-ciphers:chacha20-avx512Copy head branch name to clipboard

Conversation Commits9 (9)Checks Files changed

Open

chacha20: add an AVX-512 backend#477
caelunshun wants to merge 9 commits intoRustCrypto:masterfrom
caelunshun:chacha20-avx512

Commits

Commits on Nov 1, 2025

Initial AVX-512 port of ChaCha20.
caelunshun
committed
Test PAR_BLOCKS=8
caelunshun
committed
Get back 256b performance by specializing gen_tail_blocks for AVX-512
caelunshun
committed
Add RNG support for avx512 (not benchmarked)
caelunshun
committed

Commits on Nov 3, 2025

chacha20 avx512: Refactor design to avoid using 512-bit path even for short inputs
caelunshun
committed
Add long input test for chacha20 to test AVX-512 full parallel implementation
caelunshun
committed
Remove AVX-512 RNG backend, since RNG doesn't expose enough parallelism to make it worth the complexity
caelunshun
committed
Gate AVX-512 behind chacha20_avx512 cfg
caelunshun
committed
Add CI to run AVX-512 backend (from aes CI config) and fix build with RNG feature
caelunshun
committed

Footer

© 2025 GitHub, Inc.

Footer navigation

Terms
Privacy
Security
Status
Community
Docs
Contact

You can’t perform that action at this time.