tbphp
6c639478dc
* fix: code error * feat: opz security * feat: Optimize batch key encryption * feat: Optimize batch test key * feat: Perfect encryption key * docs: failed-to-decrypt * feat: Security alert * feat: Encryption migrate command * fix: migrate command error * feat: Adjust data length * feat: Adjust data length * docs: input text * fix: Deterministic Encryption * feat: Optimize security algorithms * feat: Support KeyHash * fix: Fix migration script field order issue * fix: Fix log export key issue * fix: code style * fix: migrate order offset * fix: Resolve migration script compatibility issues * feat: Adjust Redis cleanup policy * fix: migrate for sqlite * fix: migrate * fix: rm group_key_inx * fix: rm group_key_inx * fix: filter null hash data * docs: log warn * docs: update readme
111 lines
2.6 KiB
Go
111 lines
2.6 KiB
Go
package encryption
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import (
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"crypto/aes"
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"crypto/cipher"
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"crypto/hmac"
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"crypto/rand"
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"crypto/sha256"
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"encoding/hex"
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"fmt"
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"gpt-load/internal/utils"
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"io"
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)
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// Service defines the encryption interface
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type Service interface {
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Encrypt(plaintext string) (string, error)
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Decrypt(ciphertext string) (string, error)
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Hash(plaintext string) string
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}
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// NewService creates encryption service
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func NewService(encryptionKey string) (Service, error) {
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if encryptionKey == "" {
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return &noopService{}, nil
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}
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// Derive AES-256 key from user input and validate strength
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aesKey := utils.DeriveAESKey(encryptionKey)
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utils.ValidatePasswordStrength(encryptionKey, "ENCRYPTION_KEY")
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// Initialize cipher and GCM once for reuse
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block, err := aes.NewCipher(aesKey)
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if err != nil {
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return nil, fmt.Errorf("failed to create cipher: %w", err)
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}
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gcm, err := cipher.NewGCM(block)
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if err != nil {
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return nil, fmt.Errorf("failed to create GCM: %w", err)
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}
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return &aesService{key: aesKey, gcm: gcm}, nil
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}
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// aesService implements AES-256-GCM encryption
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type aesService struct {
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key []byte
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gcm cipher.AEAD
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}
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func (s *aesService) Encrypt(plaintext string) (string, error) {
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nonce := make([]byte, s.gcm.NonceSize())
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if _, err := io.ReadFull(rand.Reader, nonce); err != nil {
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return "", err
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}
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ciphertext := s.gcm.Seal(nonce, nonce, []byte(plaintext), nil)
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return hex.EncodeToString(ciphertext), nil
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}
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func (s *aesService) Decrypt(ciphertext string) (string, error) {
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data, err := hex.DecodeString(ciphertext)
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if err != nil {
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return "", fmt.Errorf("invalid hex data: %w", err)
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}
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nonceSize := s.gcm.NonceSize()
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if len(data) < nonceSize {
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return "", fmt.Errorf("ciphertext too short")
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}
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nonce, encrypted := data[:nonceSize], data[nonceSize:]
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plaintext, err := s.gcm.Open(nil, nonce, encrypted, nil)
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if err != nil {
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return "", fmt.Errorf("decryption failed: %w", err)
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}
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return string(plaintext), nil
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}
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// Hash generates a hash of the plaintext using HMAC-SHA256
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func (s *aesService) Hash(plaintext string) string {
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if plaintext == "" {
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return ""
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}
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mac := hmac.New(sha256.New, s.key)
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mac.Write([]byte(plaintext))
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return hex.EncodeToString(mac.Sum(nil))
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}
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// noopService disables encryption
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type noopService struct{}
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func (s *noopService) Encrypt(plaintext string) (string, error) {
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return plaintext, nil
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}
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func (s *noopService) Decrypt(ciphertext string) (string, error) {
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return ciphertext, nil
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}
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// Hash generates a hash of the plaintext using SHA256 (no key)
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func (s *noopService) Hash(plaintext string) string {
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if plaintext == "" {
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return ""
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}
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hash := sha256.Sum256([]byte(plaintext))
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return hex.EncodeToString(hash[:])
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}
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