Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Core / System / Security / Cryptography / SHA512CryptoServiceProvider.cs / 1305376 / SHA512CryptoServiceProvider.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== using System; using System.Diagnostics.Contracts; namespace System.Security.Cryptography { ////// Wrapper around the CAPI implementation of the SHA-512 hashing algorithm /// [System.Security.Permissions.HostProtection(MayLeakOnAbort = true)] public sealed class SHA512CryptoServiceProvider : SHA512 { private CapiHashAlgorithm m_hashAlgorithm; //// [System.Security.SecurityCritical] public SHA512CryptoServiceProvider() { Contract.Ensures(m_hashAlgorithm != null); m_hashAlgorithm = new CapiHashAlgorithm(CapiNative.ProviderNames.MicrosoftEnhancedRsaAes, CapiNative.ProviderType.RsaAes, CapiNative.AlgorithmId.Sha512); } //// // [System.Security.SecurityCritical] protected override void Dispose(bool disposing) { try { if (disposing) { m_hashAlgorithm.Dispose(); } } finally { base.Dispose(disposing); } } ///// /// Reset the hash algorithm to begin hashing a new set of data /// //// [System.Security.SecurityCritical] public override void Initialize() { Contract.Assert(m_hashAlgorithm != null); m_hashAlgorithm.Initialize(); } ///// /// Hash a block of data /// //// [System.Security.SecurityCritical] protected override void HashCore(byte[] array, int ibStart, int cbSize) { Contract.Assert(m_hashAlgorithm != null); m_hashAlgorithm.HashCore(array, ibStart, cbSize); } ///// /// Complete the hash, returning its value /// //// [System.Security.SecurityCritical] protected override byte[] HashFinal() { Contract.Assert(m_hashAlgorithm != null); return m_hashAlgorithm.HashFinal(); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.//
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