本文整理汇总了C#中System.Security.Cryptography.DataProtector类的典型用法代码示例。如果您正苦于以下问题：C# DataProtector类的具体用法？C# DataProtector怎么用？C# DataProtector使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
DataProtector类属于System.Security.Cryptography命名空间，在下文中一共展示了DataProtector类的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: ProviderProtect
//引入命名空间
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
//引入命名空间
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)
{
}
}
}