<PackageReference Include="BouncyCastle.Cryptography" Version="2.3.0" />

SignatureExpirationTime

using Org.BouncyCastle.Crypto.Utilities; namespace Org.BouncyCastle.Bcpg.Sig { public class SignatureExpirationTime : SignatureSubpacket { public long Time => Pack.BE_To_UInt32(data, 0); protected static byte[] TimeToBytes(long t) { return Pack.UInt32_To_BE((uint)t); } public SignatureExpirationTime(bool critical, bool isLongLength, byte[] data) : base(SignatureSubpacketTag.ExpireTime, critical, isLongLength, data) { } public SignatureExpirationTime(bool critical, long seconds) : base(SignatureSubpacketTag.ExpireTime, critical, false, TimeToBytes(seconds)) { } } }