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fix: session B — Go-faithful auth error states, NKey padding, permissions, signal disposal

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This commit is contained in:
Joseph Doherty
2026-02-26 17:49:13 -05:00
parent 8c380e7ca6
commit a0c9c0094c
12 changed files with 97 additions and 46 deletions
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10
dotnet/src/ZB.MOM.NatsNet.Server/NatsServer.Auth.cs
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@@ -169,9 +169,13 @@ public sealed partial class NatsServer
{
try
{
var kp = NATS.NKeys.KeyPair.FromPublicKey(nkeyPub.AsSpan());
// Sig is base64url-encoded; nonce is raw bytes.
var sigBytes = Convert.FromBase64String(sig.Replace('-', '+').Replace('_', '/'));
var kp = NATS.NKeys.KeyPair.FromPublicKey(nkeyPub.AsSpan());
// Sig is raw URL-safe base64; convert to standard base64 with padding.
var padded = sig.Replace('-', '+').Replace('_', '/');
var rem = padded.Length % 4;
if (rem == 2) padded += "==";
else if (rem == 3) padded += "=";
var sigBytes = Convert.FromBase64String(padded);
var verified = kp.Verify(
new ReadOnlyMemory<byte>(nonce),
new ReadOnlyMemory<byte>(sigBytes));