Invalid_client using OpenIdConnect in client application

Question

I have an IdentityServer4 application running with ASP.NET Identity. I want to use that so users from another application can login through my remote identity server.

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Answer 1

ClientSecret should contain the unencrypted value. Take a look at the documentation.

In your case secret.

options.ClientSecret = "secret";

I didn't look further, so if this change doesn't solve it then please let me know.

Answer 2

2 Things to note for this issue:

1. In the client application ,'ClientSecret' should be the 'unencryptedvalue' - plaintext.('secret' in following example)
2. While doing the configuration for all clients, in identity server, please check the secret.Type, it should be 'SharedSecret'.

Example:

Secret secret = new Secret("secret".Sha256(), "Description");
secret.Type = "SharedSecret";