std.crypto: add Ascon-AEAD, Ascon-Hash, Ascon-CHash - #25239
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Ascon is the family of cryptographic constructions standardized by NIST for lightweight cryptography. The Zig standard library already included the Ascon permutation itself, but higher-level constructions built on top of it were intentionally postponed until NIST released the final specification. That specification has now been published as NIST SP 800-232: https://csrc.nist.gov/pubs/sp/800/232/final With this publication, we can now confidently include these constructions in the standard library.
Rexicon226
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Sep 15, 2025
andrewrk
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Sep 18, 2025
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| pub fn main() !void { | ||
| const stdout = std.fs.File.stdout().deprecatedWriter(); | ||
| var stdout_buffer: [4096]u8 = undefined; |
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If you flush after every write, there's no need for a buffer. Recommend to either pass an empty buffer, and remove all the flush() calls, or flush only once at the end.
andrewrk
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This broke RISC-V CI: https://github.com/ziglang/zig/actions/runs/17816622839/job/50650980744 For future reference, you can add the https://github.com/ziglang/zig/labels/ci-riscv64-linux label to a PR to get RISC-V CI running on it. This can be a good idea to do whenever new algorithms/tests are added to |
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Noted. Thanks @alexrp ! |
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Ascon is the family of cryptographic constructions standardized by NIST for lightweight cryptography.
The Zig standard library already included the Ascon permutation itself, but higher-level constructions built on top of it were intentionally postponed until NIST released the final specification.
That specification has now been published as NIST SP 800-232: https://csrc.nist.gov/pubs/sp/800/232/final
With this publication, we can now confidently include these constructions in the standard library.
Also unbreak the benchmarks after the
deprecatedWriter()removal.