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61 changes: 8 additions & 53 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -15,15 +15,12 @@ Import this package for its side effects to register Ed448 with `jwx`:
package ed448_test

import (
"encoding/json"
"fmt"

"github.com/cloudflare/circl/sign/ed448"
"github.com/lestrrat-go/jwx/v3/jwa"
"github.com/lestrrat-go/jwx/v3/jwk"
"github.com/lestrrat-go/jwx/v3/jws"
"github.com/lestrrat-go/dsig"

_ "github.com/lestrrat-go/jwx-circl-ed448"
_ "github.com/lestrrat-go/dsig-circl-ed448"
)

func Example() {
Expand All @@ -36,64 +33,22 @@ func Example() {

payload := []byte("Hello, Ed448!")

// Sign and verify with raw keys
signed, err := jws.Sign(payload, jws.WithKey(jwa.EdDSAEd448(), priv))
// Sign with Ed448 private key
signature, err := dsig.Sign(priv, "Ed448", payload, nil)
if err != nil {
fmt.Printf("failed to sign: %s\n", err)
return
}

verified, err := jws.Verify(signed, jws.WithKey(jwa.EdDSAEd448(), pub))
if err != nil {
// Verify with Ed448 public key
if err := dsig.Verify(pub, "Ed448", payload, signature); err != nil {
fmt.Printf("failed to verify: %s\n", err)
return
}
fmt.Printf("%s\n", verified)

// Import raw keys into JWK
jwkPriv, err := jwk.Import(priv)
if err != nil {
fmt.Printf("failed to import private key: %s\n", err)
return
}

jwkPub, err := jwk.Import(pub)
if err != nil {
fmt.Printf("failed to import public key: %s\n", err)
return
}

// Sign and verify with JWK keys
signed, err = jws.Sign(payload, jws.WithKey(jwa.EdDSAEd448(), jwkPriv))
if err != nil {
fmt.Printf("failed to sign with JWK key: %s\n", err)
return
}

verified, err = jws.Verify(signed, jws.WithKey(jwa.EdDSAEd448(), jwkPub))
if err != nil {
fmt.Printf("failed to verify with JWK key: %s\n", err)
return
}
fmt.Printf("%s\n", verified)

// JWK JSON round-trip
buf, err := json.MarshalIndent(jwkPriv, "", " ")
if err != nil {
fmt.Printf("failed to marshal JWK: %s\n", err)
return
}

parsed, err := jwk.ParseKey(buf)
if err != nil {
fmt.Printf("failed to parse JWK: %s\n", err)
return
}
_ = parsed
fmt.Println("signature verified")

// Output:
// Hello, Ed448!
// Hello, Ed448!
// signature verified
}
```
source: [example_test.go](https://github.com/lestrrat-go/jwx-circl-ed448/blob/main/example_test.go)
Expand Down