init commit

output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Bcpg/Sig/SignatureCreationTime.cs

@@ -0,0 +1,35 @@
+using System;
+using Org.BouncyCastle.Utilities.Date;
+
+namespace Org.BouncyCastle.Bcpg.Sig;
+
+public class SignatureCreationTime : SignatureSubpacket
+{
+	protected static byte[] TimeToBytes(DateTime time)
+	{
+		long num = DateTimeUtilities.DateTimeToUnixMs(time) / 1000;
+		return new byte[4]
+		{
+			(byte)(num >> 24),
+			(byte)(num >> 16),
+			(byte)(num >> 8),
+			(byte)num
+		};
+	}
+
+	public SignatureCreationTime(bool critical, bool isLongLength, byte[] data)
+		: base(SignatureSubpacketTag.CreationTime, critical, isLongLength, data)
+	{
+	}
+
+	public SignatureCreationTime(bool critical, DateTime date)
+		: base(SignatureSubpacketTag.CreationTime, critical, isLongLength: false, TimeToBytes(date))
+	{
+	}
+
+	public DateTime GetTime()
+	{
+		long num = (uint)((data[0] << 24) | (data[1] << 16) | (data[2] << 8) | data[3]);
+		return DateTimeUtilities.UnixMsToDateTime(num * 1000);
+	}
+}