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package examples_test
import (
"crypto/rand"
"crypto/rsa"
"fmt"
"github.com/lestrrat-go/jwx/v2/jwa"
"github.com/lestrrat-go/jwx/v2/jwe"
"github.com/lestrrat-go/jwx/v2/jwk"
)
func Example_jwe_encrypt_json() {
rawprivkey, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
fmt.Printf("failed to create raw private key: %s\n", err)
return
}
privkey, err := jwk.FromRaw(rawprivkey)
if err != nil {
fmt.Printf("failed to create private key: %s\n", err)
return
}
pubkey, err := privkey.PublicKey()
if err != nil {
fmt.Printf("failed to create public key:%s\n", err)
return
}
const payload = `Lorem ipsum`
encrypted, err := jwe.Encrypt([]byte(payload), jwe.WithJSON(), jwe.WithKey(jwa.RSA_OAEP, pubkey))
if err != nil {
fmt.Printf("failed to encrypt payload: %s\n", err)
return
}
decrypted, err := jwe.Decrypt(encrypted, jwe.WithKey(jwa.RSA_OAEP, privkey))
if err != nil {
fmt.Printf("failed to decrypt payload: %s\n", err)
return
}
fmt.Printf("%s\n", decrypted)
// OUTPUT:
// Lorem ipsum
}
func Example_jwe_encrypt_json_multi() {
var privkeys []jwk.Key
var pubkeys []jwk.Key
for i := 0; i < 3; i++ {
rawprivkey, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
fmt.Printf("failed to create raw private key: %s\n", err)
return
}
privkey, err := jwk.FromRaw(rawprivkey)
if err != nil {
fmt.Printf("failed to create private key: %s\n", err)
return
}
privkeys = append(privkeys, privkey)
pubkey, err := privkey.PublicKey()
if err != nil {
fmt.Printf("failed to create public key:%s\n", err)
return
}
pubkeys = append(pubkeys, pubkey)
}
options := []jwe.EncryptOption{jwe.WithJSON()}
for _, key := range pubkeys {
options = append(options, jwe.WithKey(jwa.RSA_OAEP, key))
}
const payload = `Lorem ipsum`
encrypted, err := jwe.Encrypt([]byte(payload), options...)
if err != nil {
fmt.Printf("failed to encrypt payload: %s\n", err)
return
}
for _, key := range privkeys {
decrypted, err := jwe.Decrypt(encrypted, jwe.WithKey(jwa.RSA_OAEP, key))
if err != nil {
fmt.Printf("failed to decrypt payload: %s\n", err)
return
}
fmt.Printf("%s\n", decrypted)
}
// OUTPUT:
// Lorem ipsum
// Lorem ipsum
// Lorem ipsum
}
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