SingpassApi

Library to use Singpass in the application.

Installation

Usage

// Create a SingpassService
SingpassConfig config = ConfigLoader<SingpassConfig>.LoadConfig("singpass.json");
SingpassService service = new SingpassService(config);

Generate EC keys for jwks.json

These lines generate 1 JWKS with the private and public key pair. Please separate them in different files.

(var priv, var pub) = JWTUtils.CreateJWKPair(JWTUtils.CreateNewECDsa(), "sig");
var jwkEC =JWTUtils.CreateNewJWKSEC([priv,pub]);

string jwkStringEC = JsonConvert.SerializeObject(jwkEC);
Console.WriteLine($"JWKEC: {jwkStringEC}");

Generate EC keys and store them directly in jwks.json

// Create the service with dedicated config
SingpassConfig config = ConfigLoader<SingpassConfig>.LoadConfig("singpass.json");
SingpassService service = new SingpassService(config);

if (service is not null){
    // Create sig key
    (var priv, var pub) = JWTUtils.CreateJWKPair(
        JWTUtils.CreateNewECDsa(),
        "sig"
    );
    // Create enc key
    (var privE, var pubE) = JWTUtils.CreateJWKPair(
        JWTUtils.CreateNewECDsa(),
        "enc"
    );
    // Create or append the keys to the dedicated files:
    // jwks.json for public keys
    // jwks.private.json for private keys
    // Keys kid are generated to be complient to singpass notation
    service.AppendKeyPairToFile(priv, pub, "../Config");
    service.AppendKeyPairToFile(privE, pubE, "../Config");
}

Get singpass key set as JWKSEC

The endpoint must be set in the config file first or it will fail.

JWKSEC? jwks = await service.GetSingpassJWKSECAsync();