SignatureCreationTime.cs :  » PDF » iTextSharp » Org » BouncyCastle » Bcpg » Sig » C# / CSharp Open Source

using System;

using Org.BouncyCastle.Utilities.Date;

namespace Org.BouncyCastle.Bcpg.Sig{
    /**
    * packet giving signature creation time.
    */
    public class SignatureCreationTime
        : SignatureSubpacket
    {
    protected static byte[] TimeToBytes(
            DateTime time)
        {
      long t = DateTimeUtilities.DateTimeToUnixMs(time) / 1000L;
      byte[] data = new byte[4];
      data[0] = (byte)(t >> 24);
            data[1] = (byte)(t >> 16);
            data[2] = (byte)(t >> 8);
            data[3] = (byte)t;
            return data;
        }
        public SignatureCreationTime(
            bool  critical,
            byte[]  data)
            : base(SignatureSubpacketTag.CreationTime, critical, data)
        {
        }
        public SignatureCreationTime(
            bool    critical,
            DateTime  date)
            : base(SignatureSubpacketTag.CreationTime, critical, TimeToBytes(date))
        {
        }
        public DateTime GetTime()
        {
      long time = (long)(
          ((uint)data[0] << 24)
        |  ((uint)data[1] << 16)
        |  ((uint)data[2] << 8)
        |  ((uint)data[3])
        );
      return DateTimeUtilities.UnixMsToDateTime(time * 1000L);
        }
    }
}