本文整理匯總了C#中System.Security.Cryptography.DataProtector類的典型用法代碼示例。如果您正苦於以下問題：C# DataProtector類的具體用法？C# DataProtector怎麽用？C# DataProtector使用的例子？那麽, 這裏精選的類代碼示例或許可以為您提供幫助。
DataProtector類屬於System.Security.Cryptography命名空間，在下文中一共展示了DataProtector類的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C#代碼示例。
示例1: ProviderProtect
//引入命名空間
using System;
using System.Security.Permissions;
namespace System.Security.Cryptography
{
public sealed class MyDataProtector : DataProtector
{
public DataProtectionScope Scope { get; set; }
// This implementation gets the HashedPurpose from the base class and passes it as OptionalEntropy to ProtectedData.
// The default for DataProtector is to prepend the hash to the plain text, but because we are using the hash
// as OptionalEntropy there is no need to prepend it.
protected override bool PrependHashedPurposeToPlaintext
{
get
{
return false;
}
}
// To allow a service to hand out instances of a DataProtector we demand unrestricted DataProtectionPermission
// in the constructor, but Assert the permission when ProviderProtect is called. This is similar to FileStream
// where access is checked at time of creation, not time of use.
[SecuritySafeCritical]
[DataProtectionPermission(SecurityAction.Assert, ProtectData = true)]
protected override byte[] ProviderProtect(byte[] userData)
{
// Delegate to ProtectedData
return ProtectedData.Protect(userData, GetHashedPurpose(), Scope);
}
// To allow a service to hand out instances of a DataProtector we demand unrestricted DataProtectionPermission
// in the constructor, but Assert the permission when ProviderUnProtect is called. This is similar to FileStream
// where access is checked at time of creation, not time of use.
[SecuritySafeCritical]
[DataProtectionPermission(SecurityAction.Assert, UnprotectData = true)]
protected override byte[] ProviderUnprotect(byte[] encryptedData)
{
// Delegate to ProtectedData
return ProtectedData.Unprotect(encryptedData, GetHashedPurpose(), Scope);
}
public override bool IsReprotectRequired(byte[] encryptedData)
{
// For now, this cannot be determined, so always return true;
return true;
}
// Public constructor
// The Demand for DataProtectionPermission is in the constructor because we Assert this permission
// in the ProviderProtect/ProviderUnprotect methods.
[DataProtectionPermission(SecurityAction.Demand, Unrestricted = true)]
[SecuritySafeCritical]
public MyDataProtector(string appName, string primaryPurpose, params string[] specificPurpose)
: base(appName, primaryPurpose, specificPurpose)
{
}
}
}示例2: ProviderProtect
//引入命名空間
using System;
using System.Security.Permissions;
namespace System.Security.Cryptography
{
public sealed class MemoryProtector : DataProtector
{
public MemoryProtectionScope Scope { get; set; }
protected override bool PrependHashedPurposeToPlaintext
{
get
{
// Signal the DataProtector to prepend the hash of the purpose to the data.
return true;
}
}
// To allow a service to hand out instances of a DataProtector we demand unrestricted DataProtectionPermission
// in the constructor, but Assert the permission when ProviderProtect is called. This is similar to FileStream
// where access is checked at time of creation, not time of use.
[SecuritySafeCritical]
[DataProtectionPermission(SecurityAction.Assert, ProtectData = true)]
protected override byte[] ProviderProtect(byte[] userData)
{
// Delegate to ProtectedData
ProtectedMemory.Protect(userData, Scope);
return userData;
}
// To allow a service to hand out instances of a DataProtector we demand unrestricted DataProtectionPermission
// in the constructor, but Assert the permission when ProviderUnprotect is called.. This is similar to FileStream
// where access is checked at time of creation, not time of use.
[SecuritySafeCritical]
[DataProtectionPermission(SecurityAction.Assert, UnprotectData = true)]
protected override byte[] ProviderUnprotect(byte[] encryptedData)
{
ProtectedMemory.Unprotect(encryptedData,Scope);
return encryptedData;
}
public override bool IsReprotectRequired(byte[] encryptedData)
{
// For now, this cannot be determined so always return true.
return true;
}
// Public constructor
// The Demand for DataProtectionPermission is in the constructor because we Assert this permission
// in the ProviderProtect/ProviderUnprotect methods.
[DataProtectionPermission(SecurityAction.Demand, Unrestricted = true)]
[SecuritySafeCritical]
public MemoryProtector(string appName, string primaryPurpose, params string[] specificPurpose)
: base(appName, primaryPurpose, specificPurpose)
{
}
}
}