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package examples
import (
"crypto/rand"
"crypto/rsa"
"fmt"
"github.com/lestrrat-go/jwx/v2/jwk"
)
func Example_jwk_comparison() {
genKey := func() (jwk.Key, error) {
raw, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
return nil, fmt.Errorf("failed to generate new RSA private key: %s", err)
}
key, err := jwk.FromRaw(raw)
if err != nil {
return nil, fmt.Errorf("failed to create RSA key: %s", err)
}
if _, ok := key.(jwk.RSAPrivateKey); !ok {
return nil, fmt.Errorf("expected jwk.SymmetricKey, got %T", key)
}
return key, nil
}
k1, err := genKey()
if err != nil {
fmt.Printf("failed to generate key 1: %T", err)
return
}
k2, err := genKey()
if err != nil {
fmt.Printf("failed to generate key 2: %T", err)
return
}
// This comparison only compares Thumbprints of each key. It does NOT take into
// account fields that could differ even when thumbprints match. For example,
// it is totally possible to have a key with the same thumbprint, but different
// Key IDs, or key usages.
if jwk.Equal(k1, k2) {
fmt.Printf("k1 and k2 should be different")
return
}
if !jwk.Equal(k1, k1) {
fmt.Printf("k1 and k1 should be equal")
return
}
}
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