[英]How to use System.Configuration.DpapiProtectedConfigurationProvider version 2 in .net framework 4.5?
我最近將應用程序從.net 3.5升級到.net 4.5。我維護了一個配置文件,用於存儲用戶數據。並且使用System.Configuration.DpapiProtectedConfigurationProvider,System.Configuration, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
之后,升級后,當我嘗試從配置文件訪問數據時,出現以下錯誤:
The entry 'DataProtectionConfigurationProvider' has already been added.
因此,我從文件的DataProtectionConfigurationProvider條目中刪除了該條目。之后,當我嘗試訪問文件時,出現以下異常:
Failed to decrypt using provider 'DataProtectionConfigurationProvider'. Error message from the provider: Key not valid for use in specified state. (Exception from HRESULT: 0x8009000B)
這是我的配置文件:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
<section name="CustomPane_outlookAddIn.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</sectionGroup>
</configSections>
<system.serviceModel>
<bindings />
<client />
</system.serviceModel>
<configProtectedData>
<providers>
<add name="DataProtectionConfigurationProvider" type="System.Configuration.DpapiProtectedConfigurationProvider,System.Configuration, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" description="Uses CryptProtectData and CryptUnProtectData Windows APIs to encrypt and decrypt" useMachineProtection="true" keyEntropy="" />
</providers>
</configProtectedData>
<appSettings configProtectionProvider="DataProtectionConfigurationProvider">
<EncryptedData>
<CipherData>
<CipherValue>Encrypted user data</CipherValue>
</CipherData>
</EncryptedData>
</appSettings>
<system.web>
<membership defaultProvider="ClientAuthenticationMembershipProvider">
<providers>
<add name="ClientAuthenticationMembershipProvider" type="System.Web.ClientServices.Providers.ClientFormsAuthenticationMembershipProvider, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" serviceUri="" />
</providers>
</membership>
<roleManager defaultProvider="ClientRoleProvider" enabled="true">
<providers>
<add name="ClientRoleProvider" type="System.Web.ClientServices.Providers.ClientRoleProvider, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" serviceUri="" cacheTimeout="86400" />
</providers>
</roleManager>
</system.web>
</configuration>
從配置文件中刪除“ DataProtectionConfigurationProvider”條目后,它可以工作。問題是我正在使用另一台計算機上的配置文件,並且密鑰存儲在從中獲取配置文件的計算機中。
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