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|
package internal_test
import (
"bytes"
"fmt"
"os"
"testing"
"github.com/nerdsec/goaes/internal"
)
const (
totalIterationTests = 10
minSize = 32
validPassphrase = "dJyHOdMbG94EMvQGQrs6YZiXGiAGQgDYtx6+eqLufQg="
)
func TestNewDEK(t *testing.T) {
for i := range totalIterationTests {
t.Run(fmt.Sprintf("TestNewDek %d", i), func(t *testing.T) {
dek, err := internal.NewDEK()
if err != nil {
t.Errorf("failed to create dek. error: %v", err)
}
if len(dek) < minSize {
t.Errorf("dek too small")
}
})
}
}
func TestNewSalt(t *testing.T) {
for i := range totalIterationTests {
t.Run(fmt.Sprintf("TestNewSalt %d", i), func(t *testing.T) {
salt, err := internal.NewSalt()
if err != nil {
t.Errorf("failed to create salt. error: %v", err)
}
if len(salt) < minSize {
t.Errorf("salt too small")
}
})
}
}
func TestNewKEKFromEnvB64(t *testing.T) {
tests := []struct {
name string
passphraseEnvVar string
passphrase string
salt internal.Salt
wantErr bool
}{
{
name: "Valid base64",
passphraseEnvVar: "GOAES_PASSPHRASE",
passphrase: validPassphrase,
salt: []byte("kD+tNSxjss1XchcyyrKJyZBGg2mdmhh/IO3I87WW2Ds="),
wantErr: false,
},
{
name: "Invalid passphrase base64",
passphraseEnvVar: "GOAES_PASSPHRASE",
passphrase: "dJyHOdMbG94EMvQGQrs6YZiXGiAGQgDYtx6eqLufQg=",
salt: []byte("kD+tNSxjss1XchcyyrKJyZBGg2mdmhh/IO3I87WW2Ds="),
wantErr: true,
},
{
name: "Empty seed",
passphraseEnvVar: "GOAES_PASSPHRASE",
passphrase: validPassphrase,
salt: []byte(""),
wantErr: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
err := os.Setenv(tt.passphraseEnvVar, tt.passphrase)
if err != nil {
t.Fatal("failed to set env var")
}
_, gotErr := internal.NewKEKFromEnvB64(tt.passphraseEnvVar, tt.salt)
if gotErr != nil {
if !tt.wantErr {
t.Errorf("NewKEKFromEnvB64() failed: %v", gotErr)
}
return
}
if tt.wantErr {
t.Fatal("NewKEKFromEnvB64() succeeded unexpectedly")
}
})
}
}
func TestWrapDEK(t *testing.T) {
err := os.Setenv("GOAES_PASSPHRASE", validPassphrase)
if err != nil {
t.Fatal("failed to get env var")
}
kek, err := internal.NewKEKFromEnvB64(
"GOAES_PASSPHRASE",
[]byte("salt"),
)
if err != nil {
t.Fatalf("failed to create kek. error %v", err)
}
dek, err := internal.NewDEK()
if err != nil {
t.Fatalf("failed to create dek. error %v", err)
}
edek, err := internal.WrapDEK(dek, kek)
if err != nil {
t.Fatalf("failed to create edek. error %v", err)
}
if bytes.Equal(dek, edek) {
t.Error("dek should not be the same as edek")
}
}
|
