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HSS-LMS Signature Algorithm Implementation

8

### Pull Request Dependencies * #3869 ### Description This is adding the Hierarchical Signature System (HSS) with Leighton-Micali Hash-Based Signatures (LMS) as defined in [RFC 8554](https://datatracker.ietf.org/doc/html/rfc8554). The first commit (9dddcf6)...

FAlbertDev

Chore: Modernize copy_out_be/le

3

### Pull Request Dependencies * #3869 ### Description This removes the legacy `copy_out_{be/le}` helpers in `loadstor.h`. We replaced them with more versatile overloads of `load_*` and `store_*` that can handle...

reneme

Refactor: Final iteration on load/store

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### Description This should be the final iteration on the big/little endian helpers for now (modulo the eventual removal of the legacy ptr-based overloads). The patch fulfills three main objectives:...

reneme

Kyber constant time division

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### Pull request dependencies * #3887 This PR adds logic to perform constant-time division by replacing division with a multiplication and right-shift. Instead of using magic numbers for division and...

FAlbertDev

PQC: ML-KEM (Initial Public Draft)

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### Pull Request Dependencies * #3887 ### Descriptions This builds on the existing Kyber implementation (and the flexibility added in #3387) to provide an implementation of ML-KEM as specified in...

reneme

[std::span] BigInt Constructors

1

### Pull Request Dependencies * https://github.com/randombit/botan/pull/3865 ### Description Replaces the templated constructors (allocator for `std::vector`) with more versatile and untemplated `std::span`-based constructors.

reneme

Refactor: Kyber internals

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This is an iteration of the Kyber internals, in preparation of an ML-KEM implementation. Also, it retrofits the helpers we added along the way in the last two years. Most...

reneme

Support for Ed448 and X448

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Neither Ed448 nor X448 is currently implemented in Botan. These algorithms are used in the multi-algorithm combinations in the current version of the [draft for PQC in OpenPGP](https://datatracker.ietf.org/doc/draft-wussler-openpgp-pqc/). RNP already...

falko-strenzke

Add docs on providers

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This is an attempt to document what *providers* in Botan are, how to use them, and how to implement them (at least roughly, I tried to make it appeal to...

securitykernel

Plot benchmark graphs and create HTML report

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Adds a new option `bench.py --html-report` that plots graphs using `matplotlib` and outputs a HTML report including Botan and OpenSSL version info, system environment, and `build.h` contents. A sample report...

securitykernel