filosottile / mlkem768

A Go implementation of the quantum-resistant key encapsulation method ML-KEM (formerly known as Kyber).

filippo.io/mlkem768

https://pkg.go.dev/filippo.io/mlkem768

Package mlkem768 implements the quantum-resistant key encapsulation method ML-KEM (formerly known as Kyber).

Only the recommended ML-KEM-768 parameter set is provided.

The version currently implemented is the one specified by NIST FIPS 203 ipd, with the unintentional transposition of the matrix A reverted to match the behavior of Kyber version 3.0. Future v0 versions of this package might introduce backwards incompatible changes to implement changes to FIPS 203.

This package targets security, correctness, simplicity, readability, and reviewability as its primary goals. All critical operations are performed in constant time.

Variable and function names, as well as code layout, are selected to facilitate reviewing the implementation against the NIST FIPS 203 ipd document.

Reviewers unfamiliar with polynomials or linear algebra might find the background at https://words.filippo.io/kyber-math/ useful.

This code is aimed at being upstreamed in the standard library.