org.bouncycastle.pqc.crypto.sqisign (Bouncy Castle Library 1.85 API Specification)
Date: 2026-07-12

# Package org.bouncycastle.pqc.crypto.sqisign

Lightweight implementation of SQIsign (Short Quaternion and Isogeny Signature), an isogeny-based signature scheme in the NIST PQC additional-digital-signatures round.

See: Description

- Class Summary
  Class | Description
  --- | ---
  SQIsignKeyGenerationParameters |
  SQIsignKeyPairGenerator | SQIsign key-pair generator wired for all three NIST parameter sets (lvl1, lvl3, lvl5).
  SQIsignParameters | Parameter sets for SQIsign (Short Quaternion and Isogeny Signature), the NIST PQC additional-signatures candidate based on isogenies of supersingular elliptic curves.
  SQIsignPrivateKeyParameters |
  SQIsignPublicKeyParameters |
  SQIsignSigner | SQIsign signer.

## Package org.bouncycastle.pqc.crypto.sqisign Description

Lightweight implementation of SQIsign (Short Quaternion and Isogeny Signature), an isogeny-based signature scheme in the NIST PQC additional-digital-signatures round.