Public half of a signing key

Strips the secret seed, leaving only what a verifier needs. Publish this; never the object returned by pqc_keygen().

Usage

signing_public_key(key)

Arguments

key

A bricklayer_signing_key from pqc_keygen().

Value

A list of class bricklayer_public_key: root, pub_seed, height, scheme.

Examples

key <- pqc_keygen(height = 2)
pub <- signing_public_key(key)

# The secret seed is gone.
is.null(pub$sk_seed)
#> [1] TRUE

# And verification works from the public half alone.
sig <- capsule_sign("manifest-digest", key)
capsule_verify("manifest-digest", sig, pub)
#> [1] TRUE