<PackageReference Include="BouncyCastle.Cryptography" Version="2.7.0" />

Org.BouncyCastle.Crypto.Parameters.SlhDsaPublicKeyParameters

public sealed class SlhDsaPublicKeyParameters : SlhDsaKeyParameters
SLH-DSA public key (FIPS 205). Wraps the (PK.seed, PK.root) tuple that anchors signature verification.
public static SlhDsaPublicKeyParameters FromEncoding(SlhDsaParameters parameters, byte[] encoding)

Decode a public key from its concatenated seed || root byte representation. The expected length is 2 * n for the chosen parameter set.

public byte[] GetEncoded()

Return a fresh copy of the concatenated seed || root encoding.