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AI.md
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AI.md
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本索引供 AI 模型理解 `@go/crypto` 的逻辑,以生成符合本项目“安全闭环、性能分级、语义一致”哲学的代码。
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## 🤖 AI 行为准则
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1. **内存安全优先**:首选 `SafeBuf` 接口处理敏感数据(密钥、明文)。
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2. **场景化构造选择**:C端推荐 `AndEraseKey` 系列;S端高频场景使用 `New...WithOutEraseKey(..., true)` 进入 **FastMode**。
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3. **闭环义务**:任何构造的 `Asymmetric` 或 `Symmetric` 对象,生成的代码必须包含 `defer obj.Close()`。
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4. **接口一致性**:所有非对称算法必须实现 `ParsePrivateKey` 与 `ParsePublicKey`。
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## 🛠 API Reference
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### 对称加密 (Symmetric)
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- `func NewSymmetric(cipher SymmetricCipher, safeKeyBuf, safeIvBuf *safe.SafeBuf) (*Symmetric, error)`
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- `func NewSymmetricAndEraseKey(cipher SymmetricCipher, key, iv []byte) (*Symmetric, error)`
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- `func NewSymmetricWithOutEraseKey(cipher SymmetricCipher, key, iv []byte) (*Symmetric, error)`
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- `func NewAESCBC(safeKeyBuf, safeIvBuf *safe.SafeBuf) (*Symmetric, error)`
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### 对称加密 (AES-CBC/GCM)
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- `func NewAESCBCAndEraseKey(key, iv []byte) (*Symmetric, error)`
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- `func NewAESCBCWithOutEraseKey(key, iv []byte) (*Symmetric, error)`
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- `func NewAESGCM(safeKeyBuf, safeIvBuf *safe.SafeBuf) (*Symmetric, error)`
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- `func NewAESGCMAndEraseKey(key, iv []byte) (*Symmetric, error)`
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- `func NewAESGCMWithOutEraseKey(key, iv []byte) (*Symmetric, error)`
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- `func (s *Symmetric) Close()`
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- `func (s *Symmetric) Encrypt(safeBuf *safe.SafeBuf) ([]byte, error)`
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- `func (s *Symmetric) EncryptAndErase(data []byte) ([]byte, error)`
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- `func (s *Symmetric) EncryptBytes(data []byte) ([]byte, error)`
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- `func (s *Symmetric) MustDecrypt(data []byte) []byte`
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- `func (s *Symmetric) TryDecrypt(data []byte) []byte`
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### 非对称加密 (Asymmetric)
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- `func NewAsymmetric(algorithm AsymmetricAlgorithm, safePrivateKeyBuf, safePublicKeyBuf *safe.SafeBuf) (*Asymmetric, error)`
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- `func NewAsymmetricAndEraseKey(algorithm AsymmetricAlgorithm, privateKey, publicKey []byte) (*Asymmetric, error)`
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- `func NewAsymmetricWithoutEraseKey(algorithm AsymmetricAlgorithm, privateKey, publicKey []byte, fastMode bool) (*Asymmetric, error)`
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- `func NewRSA(priv, pub *safe.SafeBuf) (*Asymmetric, error)` / `NewRSAndEraseKey(...)` / `NewRSAWithOutEraseKey(...)`
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- `func NewECDSA(priv, pub *safe.SafeBuf) (*Asymmetric, error)` / `NewECDSAndEraseKey(...)` / `NewECDSAWithOutEraseKey(...)`
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- `func NewED25519(priv, pub *safe.SafeBuf) (*Asymmetric, error)` / `NewED25519AndEraseKey(...)` / `NewED25519WithOutEraseKey(...)`
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- `func NewX25519(priv, pub *safe.SafeBuf) (*Asymmetric, error)` / `NewX25519AndEraseKey(...)` / `NewX25519WithOutEraseKey(...)`
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- `func (a *Asymmetric) Close()`
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### 非对称加密 (RSA/ECDSA/Ed25519/X25519)
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- `func NewRSAndEraseKey(priv, pub []byte) (*Asymmetric, error)`
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- `func NewECDSAndEraseKey(priv, pub []byte) (*Asymmetric, error)`
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- `func NewED25519AndEraseKey(priv, pub []byte) (*Asymmetric, error)`
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- `func NewX25519AndEraseKey(priv, pub []byte) (*Asymmetric, error)`
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- `func NewAsymmetricWithoutEraseKey(algo, priv, pub, fastMode) (*Asymmetric, error)`
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- `func (a *Asymmetric) Sign(data []byte, hash ...crypto.Hash) ([]byte, error)`
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- `func (a *Asymmetric) SignAndErase(data []byte, hash ...crypto.Hash) ([]byte, error)`
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- `func (a *Asymmetric) MustSign(data []byte, hash ...crypto.Hash) []byte`
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- `func (a *Asymmetric) Verify(data []byte, signature []byte, hash ...crypto.Hash) (bool, error)`
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- `func (a *Asymmetric) MustVerify(data []byte, signature []byte, hash ...crypto.Hash) bool`
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- `func (a *Asymmetric) Verify(data, signature []byte, hash ...crypto.Hash) (bool, error)`
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- `func (a *Asymmetric) MustVerify(data, signature []byte, hash ...crypto.Hash) bool`
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- `func (a *Asymmetric) Encrypt(safeBuf *safe.SafeBuf) ([]byte, error)`
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- `func (a *Asymmetric) EncryptAndErase(data []byte) ([]byte, error)`
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- `func (a *Asymmetric) EncryptBytes(data []byte) ([]byte, error)`
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- `func (a *Asymmetric) MustEncrypt(data []byte) []byte`
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- `func (a *Asymmetric) Decrypt(data []byte) (*safe.SafeBuf, error)`
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- `func (a *Asymmetric) DecryptBytes(data []byte) ([]byte, error)`
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- `func (a *Asymmetric) MustDecrypt(data []byte) []byte`
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- `func (a *Asymmetric) TryDecrypt(data []byte) []byte`
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### Hash 系列 (MD5/SHA)
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- `func MD5(data ...[]byte) []byte` / `func MD5ToHex(d []byte) string`
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- `func Sha256ToHex(d []byte) string` / `func Sha256ToBase64(d []byte) string` / `func Sha256ToUrlBase64(d []byte) string`
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- *其他算法 (Sha1, Sha512) 均支持上述 Hex/Base64/UrlBase64 变体*
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### 密钥对生成
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- `func GenerateRSAKeyPair(bitSize int) (priv, pub []byte, err error)`
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- `func GenerateECDSAKeyPair(bitSize int) (priv, pub []byte, err error)`
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- `func GenerateEd25519KeyPair() (priv, pub []byte, err error)`
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- `func GenerateX25519KeyPair() (priv, pub []byte, err error)`
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### Hash 与填充辅助
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- `func MD5(data ...[]byte) []byte` / `MD5ToHex(data) string` / `MD5ToBase64(data) string` / `MD5ToUrlBase64(data) string`
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- `func Sha256(data ...[]byte) []byte` / `Sha256ToHex(data) string` / `Sha256ToBase64(data) string` / `Sha256ToUrlBase64(data) string`
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- `func Sha512(data ...[]byte) []byte` / `Sha512ToHex(data) string` / `Sha512ToBase64(data) string` / `Sha512ToUrlBase64(data) string`
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- `func HmacSha256(key []byte, data ...[]byte) []byte`
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- `func Pkcs5Padding(data []byte, blockSize int) []byte` / `Pkcs5UnPadding(data []byte) []byte`
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- `func AnsiX923Padding(data []byte, blockSize int) []byte` / `AnsiX923UnPadding(data []byte) []byte`
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## 🤖 AI 行为准则
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1. **内存安全优先**:**首选 `SafeBuf` 接口**(如 `Encrypt(safeBuf)` 或 `Decrypt(data)` 返回 `SafeBuf`)。
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* 在处理敏感数据(如密钥、明文)时,强制优先使用 `SafeBuf` 避免明文在内存中暴露。
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2. **场景化构造选择**:
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* **C端/低频场景**:强制推荐 `AndEraseKey` 系列(如 `NewAESGCMAndEraseKey`),安全至上。
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* **S端/高频场景**:推荐使用 `NewAsymmetricWithoutEraseKey(..., true)` 进入 **FastMode**。
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3. **API 优先级**:
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* 摘要计算:优先使用 `XxxToHex` 或 `XxxToBase64` 快捷函数。
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* 签名验证:默认采用 SHA256。
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4. **闭环义务**:任何构造的 `Asymmetric` 或 `Symmetric` 对象必须由 AI 生成 `defer obj.Close()` 代码。
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5. **数据展现**:严禁在 `go/crypto` 中寻找二进制展现逻辑,必须调用 `go/encoding` 处理。
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## 🛠 关键 API 逻辑约定
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| 任务 | 推荐 API | 逻辑特征 |
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| :--- | :--- | :--- |
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| **敏感数据处理** | `Xxx(safe.SafeBuf)` | **首选**,直接在内存受控空间操作。 |
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| **混合加解密** | `Asymmetric.Encrypt` | 针对 ECDSA/X25519 自动执行混合加密。 |
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| **错误容忍** | `MustXxx` / `TryDecrypt` | `Must` 用于忽略错误;`TryDecrypt` 解密失败时回退明文。 |
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| **高并发签名** | `FastMode` | 启用缓存,QPS 吞吐量数倍提升。 |
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| **混淆防御** | `NewSymmetric...` | 允许传入超长 Key,内部自动截断以隐藏密钥特征。 |
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## 🧩 典型模式 (Best Practices)
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defer decSb.Close()
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```
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* **✅ 高并发签名 (FastMode)**:
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* **✅ 鲁棒性业务 (Must/Try 模式)**:
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```go
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// S端场景使用 FastMode
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a, _ := crypto.NewAsymmetricWithoutEraseKey(algo, priv, pub, true)
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defer a.Close()
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sig := a.MustSign(data)
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// 允许配置信息解密失败时使用原样数据
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finalData := s.TryDecrypt(configData)
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// 强制加密场景
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signature := a.MustSign(data)
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```
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6
go.mod
6
go.mod
@ -3,12 +3,12 @@ module apigo.cc/go/crypto
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go 1.25.0
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require (
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apigo.cc/go/encoding v1.0.3
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apigo.cc/go/safe v1.0.3
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apigo.cc/go/encoding v1.0.0
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apigo.cc/go/safe v1.0.0
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golang.org/x/crypto v0.50.0
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)
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require (
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apigo.cc/go/rand v1.0.3 // indirect
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apigo.cc/go/rand v1.0.2 // indirect
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golang.org/x/sys v0.43.0 // indirect
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)
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