Update AGENTS.md: Document SSH Phase 5 completion (v1.8)
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AGENTS.md
90
AGENTS.md
@@ -294,8 +294,94 @@ debug1: SSH2_MSG_SERVICE_ACCEPT received
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---
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**最后更新**:2026-06-15 03:30
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**版本**:1.7(SSH Strict KEX Extension修复完成)
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**最后更新**:2026-06-15 01:15
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**版本**:1.8(SSH Phase 5 Password认证完成)
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## SSH Phase 5:Password认证完成(2026-06-15)⭐⭐⭐⭐⭐
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**完成时间**:约1小时
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**新增代码量**:66行
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**新增文件修改**:3个文件
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### 实施内容 ⭐⭐⭐⭐⭐
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**认证系统完整实现**:
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1. ✅ SQLite数据库集成(data/auth.sqlite)
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2. ✅ bcrypt密码验证(RustCrypto bcrypt 0.16)
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3. ✅ SSH_MSG_USERAUTH_REQUEST处理
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4. ✅ SSH_MSG_USERAUTH_SUCCESS/FAILURE响应
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5. ✅ Authentication methods negotiation(password, publickey)
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6. ✅ RFC 4253 padding calculation修复
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### 测试验证 ⭐⭐⭐⭐⭐
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**完整SSH认证流程验证**:
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- ✅ SSH handshake: Version → KEXINIT → Curve25519 → NEWKEYS → AUTH
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- ✅ SSH_MSG_SERVICE_REQUEST/ACCEPT成功
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- ✅ SSH_MSG_USERAUTH_REQUEST(method=none)→ 返回认证方法列表
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- ✅ SSH_MSG_USERAUTH_REQUEST(method=password)→ bcrypt验证
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- ✅ SSH_MSG_USERAUTH_SUCCESS成功(packet type 52)
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- ✅ Password authentication successful(user=demo, password=demo123)
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**OpenSSH client认证成功**:
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```
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debug3: receive packet: type 52 (SSH_MSG_USERAUTH_SUCCESS)
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Authenticated to 127.0.0.1 using "password"
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```
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### 用户数据库 ⭐⭐⭐⭐⭐
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**测试用户创建**:
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- Username: demo
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- Password: demo123
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- bcrypt hash: $2b$12$PVO2mXBvhmF9gkvInN2/YOLn7G4VmVaaavYjL03/.VDZjuFP3me3G
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- Home directory: /Users/accusys/markbase
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- Status: active (1)
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### 关键修复 ⭐⭐⭐⭐⭐
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**RFC 4253 padding calculation修复**:
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- 之前:padding计算基于 packet_length field之后的部分
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- 修复:整个plaintext packet(包括packet_length field)必须是16的倍数
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- 公式:padding = (16 - ((4 + 1 + payload) % 16)) % 16
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- 如果padding < 4,则padding += 16
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**认证方法列表动态返回**:
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- 之前:硬编码返回"password"
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- 修复:使用auth.rs返回的认证方法列表("password,publickey")
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### 下一步计划 ⭐⭐⭐⭐⭐
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**Phase 6:Channel协议**(待实施):
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- SSH_MSG_CHANNEL_OPEN处理
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- SSH_MSG_CHANNEL_OPEN_CONFIRMATION/FAILURE
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- SSH_MSG_CHANNEL_DATA传输
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- SSH_MSG_CHANNEL_CLOSE/EOF处理
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**当前连接状态**:
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- ✅ Authentication successful
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- ❌ Connection reset after auth(Channel协议未实现)
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### SSH实现进度 ⭐⭐⭐⭐⭐
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**当前进度**:**95%完成**
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- ✅ Phase 1-4: 密钥交换、加密通道(100%)
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- ✅ Phase 5: Password认证(100%)
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- ✅ Strict KEX Extension: OpenSSH 10.2兼容(100%)
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- ⏳ Phase 6: Channel协议(待实施)
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- ⏳ Phase 7: SFTP协议(待实施)
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**累计代码量**:2239行(新增66行)
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**实现时间**:约8.5小时
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### Git提交记录
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**Commit 3a4951d**: "Implement SSH Phase 5: Password authentication with bcrypt"
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---
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**最后更新**:2026-06-15 01:15
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**版本**:1.8(SSH Phase 5 Password认证完成)
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## SSH AES-128-CTR加密調試(2026-06-14)
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