论文标题
端到端加密的在线社交网络中的私人用户存储
Partitioned Private User Storages in End-to-End Encrypted Online Social Networks
论文作者
论文摘要
在安全的在线社交网络（OSN）中，通常使用端到端的加密方法。这确保了参与者之间沟通的隐私。要管理，存储或将加密密钥从一个设备传输到另一台设备，可以使用加密的私有储物。为了访问此类存储，需要登录凭据，仅需要用户知道。由于存储是加密的，因此失去这些凭据会导致密码键和消息的永久丢失。我们提出了一个计划，将加密的用户存储分为多个存放。每个人都可以在OSN的其他参与者的帮助下重建。可以重建的储藏量越多，成功重建完整的私人存储空间的机会就越高。因此，增加了用于通信的密码键的拥有。即使股东不再活跃或恶意，我们还无法获得成功的重建率，即使大部分分布式股票不再可及其。
In secure Online Social Networks (OSN), often end-to-end encryption approaches are used. This ensures the privacy of communication between the participants. To manage, store, or transfer the cryptographic keys from one device to another one, encrypted private storages can be used. To gain access to such storages, login credentials, only known to the user, are needed. Losing these credentials results in a permanent loss of cryptographic keys and messages because the storage is encrypted. We present a scheme to split encrypted user storages into multiple storages. Each one can be reconstructed with the help of other participants of the OSN. The more of the storages can be reconstructed, the higher the chance of successfully reconstructing the complete private storage is. Therefore, regaining possession of the cryptographic keys used for communication is increased. We achieve high rates of successful reconstructions, even if a large fraction of the distributed shares are not accessible anymore because the shareholders are inactive or malicious.
