CLI to sign files with YubiKey PIV Ed25519 keys (CLI version of Stefan Claas yubisigner) https://git.virebent.art/virebent/yubisigner-cli/atom?h=main 2026-05-31T00:48:33+00:00 2026-05-31T00:48:33+00:00 gabrix73 gabriel1@frozenstar.info 2026-05-31T00:48:33+00:00 urn:sha1:ec39c027d2a59c1ae1ffa6e697d5cad57f69caf0 Extract core signing logic from Stefan Claas's yubisigner GUI into standalone CLI tool for automation workflows. Features: - YubiKey PIV Ed25519 signing (slot 9c) - 4 hash algorithms (RIPEMD-256, SHA-256, SM3, Streebog-256) - Identical signature format to original yubisigner - Command-line interface for scripting All cryptographic functions are verbatim copies from yubisigner.go with original line number references preserved in comments.