feat: password.

password/bcrypt.go

@@ -0,0 +1,34 @@
+package password
+
+import (
+	"errors"
+
+	"golang.org/x/crypto/bcrypt"
+)
+
+type BCryptCrypto struct{}
+
+func NewBCryptCrypto() *BCryptCrypto {
+	return &BCryptCrypto{}
+}
+
+// Encrypt 使用 bcrypt 加密密码，返回加密后的字符串和空盐值
+func (b *BCryptCrypto) Encrypt(password string) (encrypted string, err error) {
+	hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	if err != nil {
+		return "", err
+	}
+	return string(hash), nil
+}
+
+// Verify 验证密码是否匹配加密后的字符串
+func (b *BCryptCrypto) Verify(password, encrypted string) (bool, error) {
+	err := bcrypt.CompareHashAndPassword([]byte(encrypted), []byte(password))
+	if err != nil {
+		if errors.Is(err, bcrypt.ErrMismatchedHashAndPassword) {
+			return false, nil
+		}
+		return false, err
+	}
+	return true, nil
+}