Stratus的核心理念是“加密密封的租户空间(Cryptographically Sealed Tenancy)”。这意味着每个租户的数据,无论是在集群内部传输中还是在持久化存储时(at rest and in transit),对于任何其他租户乃至拥有最高权限的集群管理员来说,都是完全“不可见的” 1。这一承诺的实现,源于每个租户都掌握着其自身的“加密命运——密钥、KMS和审计日志” 4。
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