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package sign
import (
"bytes"
"crypto/ecdsa"
"crypto/ed25519"
"crypto/elliptic"
cryptorand "crypto/rand"
"crypto/rsa"
"crypto/x509"
"encoding/pem"
"fmt"
"io"
"math/rand"
"strings"
"testing"
)
func generatePEM(randReader io.Reader, password []byte) (buf *bytes.Buffer, err error) {
k, err := rsa.GenerateKey(randReader, 1024)
if err != nil {
return nil, err
}
derBytes := x509.MarshalPKCS1PrivateKey(k)
var block *pem.Block
if password != nil {
block, err = x509.EncryptPEMBlock(randReader, "RSA PRIVATE KEY", derBytes, password, x509.PEMCipherAES128)
} else {
block = &pem.Block{
Type: "RSA PRIVATE KEY",
Bytes: derBytes,
}
}
buf = &bytes.Buffer{}
err = pem.Encode(buf, block)
return buf, err
}
func TestLoadPemPrivKey(t *testing.T) {
reader, err := generatePEM(newRandomReader(rand.New(rand.NewSource(1))), nil)
if err != nil {
t.Errorf("Unexpected pem generation err %s", err.Error())
}
privKey, err := LoadPEMPrivKey(reader)
if err != nil {
t.Errorf("Unexpected key load error, %s", err.Error())
}
if privKey == nil {
t.Errorf("Expected valid privKey, but got nil")
}
}
func TestLoadPemPrivKeyInvalidPEM(t *testing.T) {
reader := strings.NewReader("invalid PEM data")
privKey, err := LoadPEMPrivKey(reader)
if err == nil {
t.Errorf("Expected error invalid PEM data error")
}
if privKey != nil {
t.Errorf("Expected nil privKey but got %#v", privKey)
}
}
func TestLoadEncryptedPEMPrivKey(t *testing.T) {
reader, err := generatePEM(newRandomReader(rand.New(rand.NewSource(1))), []byte("password"))
if err != nil {
t.Errorf("Unexpected pem generation err %s", err.Error())
}
privKey, err := LoadEncryptedPEMPrivKey(reader, []byte("password"))
if err != nil {
t.Errorf("Unexpected key load error, %s", err.Error())
}
if privKey == nil {
t.Errorf("Expected valid privKey, but got nil")
}
}
func TestLoadEncryptedPEMPrivKeyWrongPassword(t *testing.T) {
reader, err := generatePEM(newRandomReader(rand.New(rand.NewSource(1))), []byte("password"))
privKey, err := LoadEncryptedPEMPrivKey(reader, []byte("wrong password"))
if err == nil {
t.Errorf("Expected error invalid PEM data error")
}
if privKey != nil {
t.Errorf("Expected nil privKey but got %#v", privKey)
}
}
func TestLoadPEMPrivKeyPKCS8_RSA(t *testing.T) {
r, err := generatePKCS8(keyTypeRSA)
if err != nil {
t.Errorf("generate pkcs8 key: %v", err)
}
var rr bytes.Buffer
tee := io.TeeReader(r, &rr)
key, err := LoadPEMPrivKeyPKCS8(tee)
if err != nil {
t.Errorf("load pkcs8 key: %v", err)
}
if _, ok := key.(*rsa.PrivateKey); !ok {
t.Errorf("key should be rsa but was %T", key)
}
_, err = LoadPEMPrivKeyPKCS8AsSigner(&rr)
if err != nil {
t.Errorf("load pkcs8 key as signer: %v", err)
}
}
func TestLoadPEMPrivKeyPKCS8_ECDSA(t *testing.T) {
r, err := generatePKCS8(keyTypeECDSA)
if err != nil {
t.Errorf("generate pkcs8 key: %v", err)
}
var rr bytes.Buffer
tee := io.TeeReader(r, &rr)
key, err := LoadPEMPrivKeyPKCS8(tee)
if err != nil {
t.Errorf("load pkcs8 key: %v", err)
}
if _, ok := key.(*ecdsa.PrivateKey); !ok {
t.Errorf("key should be ecdsa but was %T", key)
}
_, err = LoadPEMPrivKeyPKCS8AsSigner(&rr)
if err != nil {
t.Errorf("load pkcs8 key as signer: %v", err)
}
}
func TestLoadPEMPrivKeyPKCS8_ED25519(t *testing.T) {
r, err := generatePKCS8(keyTypeED25519)
if err != nil {
t.Errorf("generate pkcs8 key: %v", err)
}
var rr bytes.Buffer
tee := io.TeeReader(r, &rr)
key, err := LoadPEMPrivKeyPKCS8(tee)
if err != nil {
t.Errorf("load pkcs8 key: %v", err)
}
if _, ok := key.(ed25519.PrivateKey); !ok {
t.Errorf("key should be ed25519 but was %T", key)
}
_, err = LoadPEMPrivKeyPKCS8AsSigner(&rr)
if err != nil {
t.Errorf("load pkcs8 key as signer: %v", err)
}
}
type keyType int
const (
keyTypeRSA keyType = iota
keyTypeECDSA
keyTypeED25519
)
func generatePKCS8(typ keyType) (io.Reader, error) {
key, pemType, err := generatePrivateKey(typ)
if err != nil {
return nil, err
}
b, err := x509.MarshalPKCS8PrivateKey(key)
if err != nil {
return nil, err
}
block := &pem.Block{
Type: pemType,
Bytes: b,
}
var buf bytes.Buffer
if err := pem.Encode(&buf, block); err != nil {
return nil, err
}
return &buf, err
}
func generatePrivateKey(typ keyType) (interface{}, string, error) {
switch typ {
case keyTypeRSA:
key, err := rsa.GenerateKey(cryptorand.Reader, 1024)
return key, "RSA PRIVATE KEY", err
case keyTypeECDSA:
key, err := ecdsa.GenerateKey(elliptic.P224(), cryptorand.Reader)
return key, "ECDSA PRIVATE KEY", err
case keyTypeED25519:
_, key, err := ed25519.GenerateKey(cryptorand.Reader)
return key, "ED25519 PRIVATE KEY", err
default:
return nil, "", fmt.Errorf("unsupported key type %v", typ)
}
}
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