1 files changed, 74 insertions, 0 deletions
diff --git a/Crypto/src/bcpg/sig/KeyFlags.cs b/Crypto/src/bcpg/sig/KeyFlags.cs
new file mode 100644
index 000000000..0592301b3
--- /dev/null
+++ b/Crypto/src/bcpg/sig/KeyFlags.cs
@@ -0,0 +1,74 @@
+using System;
+
+using Org.BouncyCastle.Math;
+
+namespace Org.BouncyCastle.Bcpg.Sig
+{
+ /**
+ * Packet holding the key flag values.
+ */
+ public class KeyFlags
+ : SignatureSubpacket
+ {
+ public const int CertifyOther = 0x01;
+ public const int SignData = 0x02;
+ public const int EncryptComms = 0x04;
+ public const int EncryptStorage = 0x08;
+ public const int Split = 0x10;
+ public const int Authentication = 0x20;
+ public const int Shared = 0x80;
+
+ private static byte[] IntToByteArray(
+ int v)
+ {
+ byte[] tmp = new byte[4];
+ int size = 0;
+
+ for (int i = 0; i != 4; i++)
+ {
+ tmp[i] = (byte)(v >> (i * 8));
+ if (tmp[i] != 0)
+ {
+ size = i;
+ }
+ }
+
+ byte[] data = new byte[size + 1];
+ Array.Copy(tmp, 0, data, 0, data.Length);
+ return data;
+ }
+
+ public KeyFlags(
+ bool critical,
+ byte[] data)
+ : base(SignatureSubpacketTag.KeyFlags, critical, data)
+ {
+ }
+
+ public KeyFlags(
+ bool critical,
+ int flags)
+ : base(SignatureSubpacketTag.KeyFlags, critical, IntToByteArray(flags))
+ {
+ }
+
+ /// <summary>
+ /// Return the flag values contained in the first 4 octets (note: at the moment
+ /// the standard only uses the first one).
+ /// </summary>
+ public int Flags
+ {
+ get
+ {
+ int flags = 0;
+
+ for (int i = 0; i != data.Length; i++)
+ {
+ flags |= (data[i] & 0xff) << (i * 8);
+ }
+
+ return flags;
+ }
+ }
+ }
+}
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