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// Copyright 2023 Google LLC.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package pkcs11
import (
"bytes"
"crypto"
"crypto/rsa"
"flag"
"testing"
)
const (
testModule = "/usr/lib/softhsm/libsofthsm2.so"
testLabel = "Demo Object"
testUserPin = "0000"
)
var testSlot = flag.String("testSlot", "", "libsofthsm2 slot location")
func makeTestKey() (*Key, error) {
key, err := Cred(testModule, *testSlot, testLabel, testUserPin)
return key, err
}
func TestParseHexString(t *testing.T) {
got, err := ParseHexString("0x1739427")
if err != nil {
t.Fatalf("ParseHexString error: %v", err)
}
want := uint32(0x1739427)
if got != want {
t.Errorf("Expected result is %v, got: %v", want, got)
}
}
func TestParseHexStringFailure(t *testing.T) {
_, err := ParseHexString("abcdefgh")
if err == nil {
t.Error("Expected error but got nil")
}
}
func TestCredLinux(t *testing.T) {
t.Skip("fails with C_Initialize() CKR_GENERAL_ERROR")
key, err := makeTestKey()
if err != nil {
t.Errorf("Cred error: %q", err)
}
defer key.Close()
}
func BenchmarkEncryptRSA(b *testing.B) {
msg := "Plain text to encrypt"
bMsg := []byte(msg)
key, errCred := makeTestKey()
if errCred != nil {
b.Errorf("Cred error: %q", errCred)
return
}
defer key.Close()
b.Run("encryptRSA Crypto", func(b *testing.B) {
for i := 0; i < b.N; i++ {
_, errEncrypt := key.encryptRSA(bMsg)
if errEncrypt != nil {
b.Errorf("EncryptRSA error: %q", errEncrypt)
return
}
}
})
}
func TestEncrypt(t *testing.T) {
t.Skip("fails with C_Initialize() CKR_GENERAL_ERROR")
key, errCred := makeTestKey()
if errCred != nil {
t.Errorf("Cred error: %q", errCred)
return
}
defer key.Close()
msg := "Plain text to encrypt"
bMsg := []byte(msg)
_, err := key.Encrypt(bMsg, crypto.SHA1)
if err != nil {
t.Errorf("Encrypt error: %q", err)
}
}
func TestDecrypt(t *testing.T) {
t.Skip("fails with C_Initialize() CKR_GENERAL_ERROR")
key, errCred := makeTestKey()
if errCred != nil {
t.Errorf("Cred error: %q", errCred)
return
}
defer key.Close()
msg := "Plain text to encrypt"
bMsg := []byte(msg)
// Softhsm only supports SHA1
ciphertext, err := key.Encrypt(bMsg, crypto.SHA1)
if err != nil {
t.Errorf("Encrypt error: %q", err)
}
decrypted, err := key.Decrypt(ciphertext, &rsa.OAEPOptions{Hash: crypto.SHA1})
if err != nil {
t.Fatalf("Decrypt error: %v", err)
}
decrypted = bytes.Trim(decrypted, "\x00")
if string(decrypted) != msg {
t.Errorf("Decrypt error: expected %q, got %q", msg, string(decrypted))
}
}
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