### Go: Key Generation, Signing, and Verification

Source: https://github.com/chainsafe/go-schnorrkel/blob/master/README.md

Demonstrates the core functionality of the go-schnorrkel library, including generating a keypair, signing a message with a context, and verifying the signature. Requires Go 1.21 and the go-schnorrkel library.

```go
package main 

import (
	"fmt"
	
	"github.com/ChainSafe/go-schnorrkel"
)

func main() {
	msg := []byte("hello friends")
	signingCtx := []byte("example")

	signingTranscript := schnorrkel.NewSigningContext(signingCtx, msg)
	verifyTranscript := schnorrkel.NewSigningContext(signingCtx, msg)

	priv, pub, err := schnorrkel.GenerateKeypair()
	if err != nil {
		panic(err)
	}

	sig, err := priv.Sign(signingTranscript)
	if err != nil {
		panic(err)
	}

	ok, err := pub.Verify(sig, verifyTranscript)
	if err != nil {
		panic(err)
	}
	if !ok {
		fmt.Println("failed to verify signature")
		return
	}

	fmt.Println("verified signature")
}
```

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