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

Org.BouncyCastle.Asn1.Mozilla.PublicKeyAndChallenge

For parsing the PublicKeyAndChallenge created by the KEYGEN tag included by Mozilla based browsers.
namespace Org.BouncyCastle.Asn1.Mozilla { public class PublicKeyAndChallenge : Asn1Encodable { public DerIA5String Challenge { get; } public SubjectPublicKeyInfo Spki { get; } public SubjectPublicKeyInfo SubjectPublicKeyInfo { get; } public static PublicKeyAndChallenge GetInstance(object obj); public static PublicKeyAndChallenge GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit); public static PublicKeyAndChallenge GetTagged(Asn1TaggedObject taggedObject, bool declaredExplicit); public PublicKeyAndChallenge(SubjectPublicKeyInfo spki, DerIA5String challenge); public PublicKeyAndChallenge(Asn1Sequence seq); } }