HMACSHA1.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / Security / Cryptography / HMACSHA1.cs / 1 / HMACSHA1.cs
                        

                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 

// 
// HMACSHA1.cs 
//
 
namespace System.Security.Cryptography {
    [System.Runtime.InteropServices.ComVisible(true)]
    public class HMACSHA1 : HMAC {
        // 
        // public constructors
        // 
 
        public HMACSHA1 () : this (Utils.GenerateRandom(64)) {}
 
        public HMACSHA1 (byte[] key) : this (key, false) {}

        public HMACSHA1 (byte[] key, bool useManagedSha1) {
            m_hashName = "SHA1"; 
            if (useManagedSha1) {
                m_hash1 = new SHA1Managed(); 
                m_hash2 = new SHA1Managed(); 
            } else {
                m_hash1 = new SHA1CryptoServiceProvider(); 
                m_hash2 = new SHA1CryptoServiceProvider();
            }
            HashSizeValue = 160;
            base.InitializeKey(key); 
        }
    } 
}

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