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

Org.BouncyCastle.X509.Extension.AuthorityKeyIdentifierStructure

public class AuthorityKeyIdentifierStructure : AuthorityKeyIdentifier
public AuthorityKeyIdentifierStructure(Asn1OctetString encodedValue)

public AuthorityKeyIdentifierStructure(X509Certificate certificate)

Create an AuthorityKeyIdentifier using the passed in certificate's public key, issuer and serial number.

public AuthorityKeyIdentifierStructure(AsymmetricKeyParameter pubKey)

Create an AuthorityKeyIdentifier using just the hash of the public key.