diff --git a/modules/secret/secret.go b/modules/secret/secret.go index 628ae505a..9c2ecd181 100644 --- a/modules/secret/secret.go +++ b/modules/secret/secret.go @@ -10,6 +10,7 @@ import ( "encoding/base64" "encoding/hex" "errors" + "fmt" "io" "github.com/minio/sha256-simd" @@ -19,13 +20,13 @@ import ( func AesEncrypt(key, text []byte) ([]byte, error) { block, err := aes.NewCipher(key) if err != nil { - return nil, err + return nil, fmt.Errorf("AesEncrypt invalid key: %v", err) } b := base64.StdEncoding.EncodeToString(text) ciphertext := make([]byte, aes.BlockSize+len(b)) iv := ciphertext[:aes.BlockSize] - if _, err := io.ReadFull(rand.Reader, iv); err != nil { - return nil, err + if _, err = io.ReadFull(rand.Reader, iv); err != nil { + return nil, fmt.Errorf("AesEncrypt unable to read IV: %w", err) } cfb := cipher.NewCFBEncrypter(block, iv) cfb.XORKeyStream(ciphertext[aes.BlockSize:], []byte(b)) @@ -39,7 +40,7 @@ func AesDecrypt(key, text []byte) ([]byte, error) { return nil, err } if len(text) < aes.BlockSize { - return nil, errors.New("ciphertext too short") + return nil, errors.New("AesDecrypt ciphertext too short") } iv := text[:aes.BlockSize] text = text[aes.BlockSize:] @@ -47,7 +48,7 @@ func AesDecrypt(key, text []byte) ([]byte, error) { cfb.XORKeyStream(text, text) data, err := base64.StdEncoding.DecodeString(string(text)) if err != nil { - return nil, err + return nil, fmt.Errorf("AesDecrypt invalid decrypted base64 string: %w", err) } return data, nil } @@ -58,21 +59,21 @@ func EncryptSecret(key, str string) (string, error) { plaintext := []byte(str) ciphertext, err := AesEncrypt(keyHash[:], plaintext) if err != nil { - return "", err + return "", fmt.Errorf("failed to encrypt by secret: %w", err) } return hex.EncodeToString(ciphertext), nil } // DecryptSecret decrypts a previously encrypted hex string -func DecryptSecret(key, cipherhex string) (string, error) { +func DecryptSecret(key, cipherHex string) (string, error) { keyHash := sha256.Sum256([]byte(key)) - ciphertext, err := hex.DecodeString(cipherhex) + ciphertext, err := hex.DecodeString(cipherHex) if err != nil { - return "", err + return "", fmt.Errorf("failed to decrypt by secret, invalid hex string: %w", err) } plaintext, err := AesDecrypt(keyHash[:], ciphertext) if err != nil { - return "", err + return "", fmt.Errorf("failed to decrypt by secret, the key (maybe SECRET_KEY?) might be incorrect: %w", err) } return string(plaintext), nil } diff --git a/modules/secret/secret_test.go b/modules/secret/secret_test.go index 4b018fddb..d4fb46955 100644 --- a/modules/secret/secret_test.go +++ b/modules/secret/secret_test.go @@ -10,14 +10,22 @@ import ( ) func TestEncryptDecrypt(t *testing.T) { - var hex string - var str string - - hex, _ = EncryptSecret("foo", "baz") - str, _ = DecryptSecret("foo", hex) + hex, err := EncryptSecret("foo", "baz") + assert.NoError(t, err) + str, _ := DecryptSecret("foo", hex) assert.Equal(t, "baz", str) - hex, _ = EncryptSecret("bar", "baz") + hex, err = EncryptSecret("bar", "baz") + assert.NoError(t, err) str, _ = DecryptSecret("foo", hex) assert.NotEqual(t, "baz", str) + + _, err = DecryptSecret("a", "b") + assert.ErrorContains(t, err, "invalid hex string") + + _, err = DecryptSecret("a", "bb") + assert.ErrorContains(t, err, "the key (maybe SECRET_KEY?) might be incorrect: AesDecrypt ciphertext too short") + + _, err = DecryptSecret("a", "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef") + assert.ErrorContains(t, err, "the key (maybe SECRET_KEY?) might be incorrect: AesDecrypt invalid decrypted base64 string") }