1. Dec 21, 2016 My unifi.scotthelme.co.uk subdomain resolves to the IP of that server which obtains the Let's Encrypt certificate for me as it can answer the challenge. The server then connects to the Cloud Key via SSH using key-based auth and copies the new certificate over and runs the commands to regenerate the JKS file and restart the UniFi service.
2. I'm writing a library to generate and check CSRF tokens. I would like to do it without having to use sessions and/or cookies. What I've come up with is this: A token generated from the current time and a unique token id (unix-timestamp.unique-token-id). The token would then be hashed using the HMAC method.

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The data protection system employs a discovery mechanism by default to determine where cryptographic keys should be persisted. The developer can override the default discovery mechanism and manually specify the location.

Warning

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If you specify an explicit key persistence location, the data protection system deregisters the default key encryption at rest mechanism, so keys are no longer encrypted at rest. It's recommended that you additionally specify an explicit key encryption mechanism for production deployments.

File system

To configure a file system-based key repository, call the PersistKeysToFileSystem configuration routine as shown below. Provide a DirectoryInfo pointing to the repository where keys should be stored:

The DirectoryInfo can point to a directory on the local machine, or it can point to a folder on a network share. If pointing to a directory on the local machine (and the scenario is that only apps on the local machine require access to use this repository), consider using Windows DPAPI (on Windows) to encrypt the keys at rest. Otherwise, consider using an X.509 certificate to encrypt keys at rest.

Azure Storage

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The Microsoft.AspNetCore.DataProtection.AzureStorage package allows storing data protection keys in Azure Blob Storage. Keys can be shared across several instances of a web app. Apps can share authentication cookies or CSRF protection across multiple servers.

To configure the Azure Blob Storage provider, call one of the PersistKeysToAzureBlobStorage overloads.

If the web app is running as an Azure service, authentication tokens can be automatically created using Microsoft.Azure.Services.AppAuthentication.

See more details about configuring service-to-service authentication.

Redis

The Microsoft.AspNetCore.DataProtection.StackExchangeRedis package allows storing data protection keys in a Redis cache. Keys can be shared across several instances of a web app. Warlords of draenor game key generator. Apps can share authentication cookies or CSRF protection across multiple servers.

The Microsoft.AspNetCore.DataProtection.Redis package allows storing data protection keys in a Redis cache. Keys can be shared across several instances of a web app. Apps can share authentication cookies or CSRF protection across multiple servers.

To configure on Redis, call one of the PersistKeysToStackExchangeRedis overloads:

To configure on Redis, call one of the PersistKeysToRedis overloads:

For more information, see the following topics:

Registry

Only applies to Windows deployments.

Sometimes the app might not have write access to the file system. Consider a scenario where an app is running as a virtual service account (such as w3wp.exe's app pool identity). In these cases, the administrator can provision a registry key that's accessible by the service account identity. Call the PersistKeysToRegistry extension method as shown below. Provide a RegistryKey pointing to the location where cryptographic keys should be stored:

Important

We recommend using Windows DPAPI to encrypt the keys at rest.

Entity Framework Core

The Microsoft.AspNetCore.DataProtection.EntityFrameworkCore package provides a mechanism for storing data protection keys to a database using Entity Framework Core. The Microsoft.AspNetCore.DataProtection.EntityFrameworkCore NuGet package must be added to the project file, it's not part of the Microsoft.AspNetCore.App metapackage.

With this package, keys can be shared across multiple instances of a web app.

To configure the EF Core provider, call the PersistKeysToDbContext<TContext> method:

Let Client Generate Csrf Key Code

If you would like to see code comments translated to languages other than English, let us know in this GitHub discussion issue.

The generic parameter, TContext, must inherit from DbContext and implement IDataProtectionKeyContext:

Let Client Generate Csrf Key 1

Create the DataProtectionKeys table.

Execute the following commands in the Package Manager Console (PMC) window:

Execute the following commands in a command shell:

MyKeysContext is the DbContext defined in the preceding code sample. If you're using a DbContext with a different name, substitute your DbContext name for MyKeysContext.

The DataProtectionKeys class/entity adopts the structure shown in the following table.

Property/Field	CLR Type	SQL Type
Id	int	int, PK, not null
FriendlyName	string	nvarchar(MAX), null
Xml	string	nvarchar(MAX), null

Custom key repository

Let Client Generate Csrf Key Pdf

If the in-box mechanisms aren't appropriate, the developer can specify their own key persistence mechanism by providing a custom IXmlRepository.