public static byte[] CreateUserKeyingMaterial(PublicKeyPacket pubKeyData)
{
//IL_0000: Unknown result type (might be due to invalid IL or missing references)
//IL_0006: Expected O, but got Unknown
MemoryStream val = new MemoryStream();
ECDHPublicBcpgKey eCDHPublicBcpgKey = (ECDHPublicBcpgKey)pubKeyData.Key;
byte[] encoded = eCDHPublicBcpgKey.CurveOid.GetEncoded();
((Stream)val).Write(encoded, 1, encoded.Length - 1);
((Stream)val).WriteByte((byte)pubKeyData.Algorithm);
((Stream)val).WriteByte((byte)3);
((Stream)val).WriteByte((byte)1);
((Stream)val).WriteByte((byte)eCDHPublicBcpgKey.HashAlgorithm);
((Stream)val).WriteByte((byte)eCDHPublicBcpgKey.SymmetricKeyAlgorithm);
((Stream)val).Write(ANONYMOUS_SENDER, 0, ANONYMOUS_SENDER.Length);
byte[] array = PgpPublicKey.CalculateFingerprint(pubKeyData);
((Stream)val).Write(array, 0, array.Length);
return(val.ToArray());
}
// RFC 6637 - Section 8
// curve_OID_len = (byte)len(curve_OID);
// Param = curve_OID_len || curve_OID || public_key_alg_ID || 03
// || 01 || KDF_hash_ID || KEK_alg_ID for AESKeyWrap || "Anonymous
// Sender " || recipient_fingerprint;
// Z_len = the key size for the KEK_alg_ID used with AESKeyWrap
// Compute Z = KDF( S, Z_len, Param );
public static byte[] CreateUserKeyingMaterial(PublicKeyPacket pubKeyData)
{
MemoryStream pOut = new MemoryStream();
ECDHPublicBcpgKey ecKey = (ECDHPublicBcpgKey)pubKeyData.Key;
byte[] encOid = ecKey.CurveOid.GetEncoded();
pOut.Write(encOid, 1, encOid.Length - 1);
pOut.WriteByte((byte)pubKeyData.Algorithm);
pOut.WriteByte(0x03);
pOut.WriteByte(0x01);
pOut.WriteByte((byte)ecKey.HashAlgorithm);
pOut.WriteByte((byte)ecKey.SymmetricKeyAlgorithm);
pOut.Write(ANONYMOUS_SENDER, 0, ANONYMOUS_SENDER.Length);
byte[] fingerprint = PgpPublicKey.CalculateFingerprint(pubKeyData);
pOut.Write(fingerprint, 0, fingerprint.Length);
return(pOut.ToArray());
}
