<s>[INST] (.net core 3.1) The application requires a JSON Web Token (JWT) generated using Cryptographic Application Programming Interface 
(CAPI) component in COM+ to sign and verify the token. The application has two C# classes: one provides 
valid sign and the other provides invalid
sign. However, both classes are not  strong-named assemblies and the current solution uses weak-named 
assemblies with direct casing to the interface. The application is not FIPS compliant.

Steps to resolve: 

Step 1: Convert Cryptographic Application Programming Interface (CAPI) to .NET implementation of cryptography

Step 2: Convert all weak-named assemblies into strong-named assemblies to make the application FIPS compliant

Step 3: Remove direct casing to interface to eliminate strong coupling and to make the code more maintainable.

Here are two C# classes: 

```csharp
public class ValidSigner
{
    public string Sign(string token, string sigAlg)
    {
        if (sigAlg == "ES256")
        {
            // implementation using CAPI component
        }
        else
        {
            // implementation using another algorithm
        }
    }
}

public class InvalidSigner
{
    public string Sign(string token, string sigAlg)
    {
        // bad implementation
    }
}
```

Here's another C# class that uses these classes: 

```csharp
public class TokenGenerator
{
    private readonly ITokenSigner _signer;

    public TokenGenerator(ITokenSigner signer)
    {
        _signer = signer;
    }

    public string GenerateToken(string token, string sigAlg)
    {
        return _signer.Sign(token, sigAlg);
    }
}
```

Step 1: Convert Cryptographic Application Programming Interface (CAPI) to .NET implementation of cryptography

We replaced the implementation of the `Sign` method in the `ValidSigner` class with .NET implementation of cryptography. Here is the updated `ValidSigner` class:

```csharp
using System;
using System.IdentityModel.Tokens.Jwt;
using System.Security.Cryptography;
using Microsoft.IdentityModel.Tokens;
using System.Text;

public class ValidSigner : ITokenSigner
{
    private readonly string _key;

    public ValidSigner(string key)
    {
        _key = key;
    }

    public string Sign(string token, string sigAlg)
    {
        if (sigAlg == "ES256")
        {
            var jsonWebKey = new JsonWebKey(new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_key)));
            var credentials = new SigningCredentials(jsonWebKey, SecurityAlgorithms.EcdsaSha256);

            var tokenHandler = new JwtSecurityTokenHandler();
            varsecurityToken = new JsonWebSecurityToken(token);
            var jwt = tokenHandler.CreateJwtSecurityToken(new SecurityTokenDescriptor
            {
                Issuer = "your issuer",
                Audience = "your audience",
                SigningCredentials = credentials
            });
            return tokenHandler.WriteToken(jwt);
        }
        else
        {
            // implementation using another algorithm
        }
    }
}
```
Here are my questions: 

1) How do I make the assemblies strong-named?[/INST]