panic: cryptobackend: invalid code execution

[santhoshhpe]

Observed behavior

Unable to sign the request nats authentication request

Expected behavior

signing the nats authentication request should work as expected.

Server and client version

Connected Server Version: 2.10.14
Client version : v0.1.4

Host environment

docker ubuntu image

Steps to reproduce

Run the go code to sign the nonce sent by nats server for authentication

Sample code:

// Handle nats signature request for challenge response authentication.
func sigHandler(seedKey string, nonce []byte) ([]byte, error) {
	log.Info("handling signature check for nats, nonce: %v", nonce)
	kp, err := nkeys.FromSeed([]byte(seedKey))
	if err != nil {
		log.Errorf("unable to load key pair from NkeySeed, %v", err)
		return nil, err
	}
	// Wipe our key on exit.
	defer kp.Wipe()

	sig, err := kp.Sign(nonce)
	if err != nil {
		log.Errorf("Failed to sign the nonce, %v", err)
	}
	return sig, nil
}

Code to setup seeds:

conn, err = natsgo.Connect(url, natsgo.Nkey(nkeyPub, func(nonce []byte) ([]byte, error) {
			return sigHandler(nkeySeed, nonce)
		}),
		)
		if err == nil {
			break
		}

[wallyqs]

the panic is in the Go client?

[santhoshhpe]

Full stack here:
cryptobackend: unexpected code execution in ./main

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panic: cryptobackend: invalid code execution
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goroutine 1 [running]:
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crypto/internal/backend.UnreachableExceptTests()
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/usr/local/go/src/crypto/internal/backend/common.go:81 +0xd8
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crypto/ed25519.GenerateKey({0x14ee940?, 0xc0004a8210?})
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/usr/local/go/src/crypto/ed25519/ed25519.go:158 +0x7f
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golang.org/x/crypto/ed25519.GenerateKey(...)

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/glcp/unified-events-ingestion/vendor/golang.org/x/crypto/ed25519/ed25519.go:48

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github.com/nats-io/nkeys.(*kp).keys(0xc0000da0e0?)
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/glcp/unified-events-ingestion/vendor/github.com/nats-io/nkeys/keypair.go:71 +0x98

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github.com/nats-io/nkeys.(*kp).Sign(0x137af80?, {0xc0005167b0, 0xf, 0x10})
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/glcp/unified-events-ingestion/vendor/github.com/nats-io/nkeys/keypair.go:114 +0x25
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main.sigHandler({0x137af80, 0x3a}, {0xc0005167b0, 0xf, 0x10})
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/glcp/unified-events-ingestion/cmd/unified-events-ingestion/main.go:340 +0x1f2
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main.retryNATSConnection.func1({0xc0005167b0?, 0xc000516770?, 0xf?})
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/glcp/unified-events-ingestion/cmd/unified-events-ingestion/main.go:360 +0x2f

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github.com/nats-io/nats%2ego.(*Conn).connectProto(0xc000214008)

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/glcp/unified-events-ingestion/vendor/github.com/nats-io/nats.go/nats.go:2587 +0x1ff

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github.com/nats-io/nats%2ego.(*Conn).sendConnect(0xc000214008)
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/glcp/unified-events-ingestion/vendor/github.com/nats-io/nats.go/nats.go:2644 +0x45
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github.com/nats-io/nats%2ego.(*Conn).processConnectInit(0xc000214008)
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/glcp/unified-events-ingestion/vendor/github.com/nats-io/nats.go/nats.go:2380 +0x13a
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github.com/nats-io/nats%2ego.(*Conn).connect(0xc000214008)
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/glcp/unified-events-ingestion/vendor/github.com/nats-io/nats.go/nats.go:2429 +0x29e
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github.com/nats-io/nats%2ego.Options.Connect({{0x0, 0x0}, {0x0, 0x0}, {0xc0001150c0, 0x1, 0x1}, 0x0, 0x0, {0x0, ...}, ...})
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/glcp/unified-events-ingestion/vendor/github.com/nats-io/nats.go/nats.go:1585 +0x32d
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github.com/nats-io/nats%2ego.Connect({0xc000044049, 0x35}, {0xc000597448, 0x1, 0x0?})
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/glcp/unified-events-ingestion/vendor/github.com/nats-io/nats.go/nats.go:855 +0x1bc
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main.retryNATSConnection({0xc000044049, 0x35})
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/glcp/unified-events-ingestion/cmd/unified-events-ingestion/main.go:359 +0x175
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main.createStream({0x14fcc10, 0x1eca660})
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/glcp/unified-events-ingestion/cmd/unified-events-ingestion/main.go:206 +0xe7
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main.main()
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/glcp/unified-events-ingestion/cmd/unified-events-ingestion/main.go:127 +0xd88

[ripienaar]

@santhoshhpe what version go is this?

[santhoshhpe]

go 1.21

[ripienaar]

I do not see paths like src/crypto/internal/backend/common.go in the go source code, so this is pretty weird. Is this normal go as downloaded from golang.org?