这些密钥存储在用密码技术保护的密钥存储库中，在成功登录时，用户的密钥被装载到内核中并与内核进程关联起来。
These keys are stored in cryptographically protected key store and upon successful login, the user's keys are loaded into the kernel and associated with the kernel processes.
为了确保安全，可以结合使用rsync与加密技术，确保在没有正确的密码或加密密钥的情况下无法读取远程文件。
For security, you can combine this functionality with an encryption phase to ensure that the remote file is unreadable without the correct passphrase or cryptographic key.
密码学是安全技术的核心，其中的加密解密、数字签名、密钥交换等技术是起到保障作用的重要机制。
Cryptography is the core of security technologies, and encryption, decryption, digital signature, key exchange etc. are the important mechanisms to guarantee the safety.
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