Jwt Crypto Key Generate From Modulus
In this article we will see how we can create and sign a JWT token with the RS256 algorithm. This function is complementary to the validate function I posted some time ago.
Here is the Sign(..) function that can create a RS256 signed JWT token. It makes use of the BouncyCastle library. It is available as a NuGet package with version 1.8.1.
Here are some helper functions used in the above snippet.
The helper functions are the same ones found in the validate function.
Note: either the header,claims or jwt,key parameters should be provided as a deserialization operation (which occurs if the jwt is provided will wipe any header os claim provided by setting those obtained from the deserialization of the jwt token. Crypto.verify(.) wants a RSA public key. In case of RSA, a public key is based on a combination of two numbers (modulus and exponent). The X.509 certificate includes a public key and a bunch of other stuff, the certificate is a document for the public key.
This function is based on the code snippet found in this SO question.
Free Key Generate Software
Update 1: You can check this post here, where I have created a C# library that manages Jwt tokens. Virtuallab data recovery mac key generator.
Jwt Crypto Key Generate From Modulus Formula
Update 2: If you are having trouble making your keys work, have a look in my Check your RSA private and public keys post and make sure to check the Additional Resources section as well