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package examples_test
import (
"crypto/rand"
"crypto/rsa"
"fmt"
"time"
"github.com/lestrrat-go/jwx/v2/internal/json"
"github.com/lestrrat-go/jwx/v2/jwa"
"github.com/lestrrat-go/jwx/v2/jwk"
"github.com/lestrrat-go/jwx/v2/jwt"
)
var payloadLoremIpsum []byte
var jwtSignedWithHS256 []byte
var rawRSAPrivateKey *rsa.PrivateKey
var rawRSAPublicKey *rsa.PublicKey
var jwkRSAPrivateKey jwk.Key
var jwkRSAPublicKey jwk.Key
var jwkSymmetricKey jwk.Key
var jsonRSAPrivateKey []byte
var jsonRSAPublicKey []byte
func init() {
if err := Setup(); err != nil {
panic(err.Error())
}
}
// Create some variables that would be repeatedly used in the examples
func Setup() error {
payloadLoremIpsum = []byte(`Lorem ipsum`)
tok, err := jwt.NewBuilder().
Issuer(`github.com/lestrrat-go/jwx`).
IssuedAt(time.Now().Add(-5 * time.Minute)).
Expiration(time.Now().Add(time.Hour)).
Build()
if err != nil {
return fmt.Errorf(`failed to build token: %w`, err)
}
{
v, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
return fmt.Errorf(`failed to create RSA private key: %w`, err)
}
rawRSAPrivateKey = v
rawRSAPublicKey = &v.PublicKey
}
{
v, err := jwk.FromRaw(rawRSAPrivateKey)
if err != nil {
return fmt.Errorf(`failed to create jwk.Key from RSA private key: %w`, err)
}
jwkRSAPrivateKey = v
}
{
v, err := json.Marshal(jwkRSAPrivateKey)
if err != nil {
return fmt.Errorf(`failed to marshal RSA private jwk.Key: %w`, err)
}
jsonRSAPrivateKey = v
}
{
v, err := jwk.FromRaw(rawRSAPublicKey)
if err != nil {
return fmt.Errorf(`failed to create jwk.Key from RSA public key: %w`, err)
}
jwkRSAPublicKey = v
}
{
v, err := json.Marshal(jwkRSAPublicKey)
if err != nil {
return fmt.Errorf(`failed to marshal RSA public jwk.Key: %w`, err)
}
jsonRSAPublicKey = v
}
{
v, err := jwk.FromRaw([]byte(`abracadabra`))
if err != nil {
return fmt.Errorf(`failed to create jwk.Key from symmetric key: %w`, err)
}
jwkSymmetricKey = v
}
{
v, err := jwt.Sign(tok, jwt.WithKey(jwa.HS256, jwkSymmetricKey))
if err != nil {
return fmt.Errorf(`failed to sign token with HS256: %w`, err)
}
jwtSignedWithHS256 = v
}
return nil
}
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