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hms/crates/erp-core/src/crypto
iven 7ab57ea1b2
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fix(health): PII 加密安全审计修复 — 2 Critical + 6 Medium + 4 Low
审计发现 55 检查点,46 PASS / 7 WARN / 2 FAIL,修复内容:

Critical:
- C1: 密钥轮换端点现在持久化新 DEK 到 tenant_crypto_keys 表
- C2: CachedDek 实现 Drop trait,释放时清零密钥材料

Medium:
- M1: 密文格式添加版本前缀 0x01,向后兼容旧格式
- M2: HMAC 索引使用独立子密钥,与加密 KEK 分离
- M4: 脱敏函数使用 chars() 迭代器,UTF-8 安全
- M5-M6: 医生执业证号详情响应脱敏 (mask_license_number)

Low:
- L1: dek_manager 改为 pub(crate),暴露 invalidate_dek() 方法
- L3: 合并 patient 列表搜索中冗余的重复 HMAC 计算
- L4: update_family_member/update_doctor 更新时设置 key_version
2026-04-26 13:34:25 +08:00
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