private static string GetConditionUri(string pubKey)
{
Asn1lib asn1 = new Asn1lib(Encoders.Base58.DecodeData(pubKey));
var fingerprint = asn1.GetFingerprint();
var baseUri = "ni:///sha-256;";
var queryParams = "?fpt=ed25519-sha-256&cost=131072";
return($"{baseUri}{Base64Url.Encode(fingerprint)}{queryParams}");
}
public void ProvidedPubKey_ShouldGeneratedValidCcUrl()
{
var pubKey = "J7rTDMcY48AfV7b18ptpFRnn1un5s7SYENEqsQHHWAps";
var expectedUri = "IGzUc6y7uenZWKeOWy_TdkgkTkk2pvwXMwNkBGVOFU8";
byte[] pubKeyBytes = Encoders.Base58.DecodeData(pubKey);
var asn1 = new Asn1lib(pubKeyBytes);
string base64UrlEncoded = Base64Url.Encode(asn1.GetFingerprint());
Assert.AreEqual(expectedUri, base64UrlEncoded);
}