MIKE: researchers open-source compact post-quantum NIKE with 80-byte public keys
jedisct1 · x · 2026-10-08
A team led by Andrea Basso (IBM Research Europe) with researchers from Inria, EPFL, KU Leuven and NCC Group has publicly released MIKE (Module Isogeny Key-Exchange), a fast and compact post-quantum non-interactive key exchange based on isogeny assumptions.
- Claims the smallest public and secret keys among a broad range of post-quantum KEMs: 80-byte public key and 29-byte secret key at NIST Level I (fast parameters); only 160 bytes at Level V.
- Ships pure C (assembly-optimized field arithmetic, no AVX), a Rust crate, and Python/SageMath implementations; constant-time with supersingularity verification of public keys.
- Benchmarks on an AMD Ryzen 7 PRO 7840U: Level I fast key generation at 0.651ms and shared-key computation at 4.86ms; two conservative parameter sets (rigorous/fast).
- Backed by paper ePrint 2024/1556 and an implementation guide blog post.
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