IdentityServer client authentication with public/private keys instead of shared secrets

Question

I\'m trying to use public/private keys instead of a shared secret for client secrets with IdentityServer4. This approach is documented here.

If it was a shared secret,

Answer 1

I think it has to be a signed JWT. Check out the PrivateKeyJwtSecretValidator class in the IDS4 codebase:

https://github.com/IdentityServer/IdentityServer4/blob/2.1.3/src/IdentityServer4/Validation/PrivateKeyJwtSecretValidator.cs