//
// HMACSHA1.cs: Handles HMAC with SHA-1
//
// Author:
// Sebastien Pouliot <sebastien@ximian.com>
//
// (C) 2003 Motus Technologies Inc. (http://www.motus.com)
// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.IO;
using System.Runtime.InteropServices;
using Mono.Security.Cryptography;
namespace System.Security.Cryptography{
// References:
// a. FIPS PUB 198: The Keyed-Hash Message Authentication Code (HMAC), 2002 March.
// http://csrc.nist.gov/publications/fips/fips198/fips-198a.pdf
// b. Internet RFC 2104, HMAC, Keyed-Hashing for Message Authentication
// (include C source for HMAC-MD5)
// http://www.ietf.org/rfc/rfc2104.txt
// c. IETF RFC2202: Test Cases for HMAC-MD5 and HMAC-SHA-1
// (include C source for HMAC-MD5 and HAMAC-SHA1)
// http://www.ietf.org/rfc/rfc2202.txt
// d. ANSI X9.71, Keyed Hash Message Authentication Code.
// not free :-(
// http://webstore.ansi.org/ansidocstore/product.asp?sku=ANSI+X9%2E71%2D2000
[ComVisible (true)]
public class HMACSHA1 : HMAC {
public HMACSHA1 ()
: this (KeyBuilder.Key (8))
{
}
public HMACSHA1 (byte[] key)
{
HashName = "SHA1";
HashSizeValue = 160;
Key = key;
}
public HMACSHA1 (byte[] key, bool useManagedSha1)
{
HashName = "System.Security.Cryptography.SHA1" + (useManagedSha1 ? "Managed" : "CryptoServiceProvider");
HashSizeValue = 160;
Key = key;
}
}
}
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