TrueCrypt is a popular tool for performing encryption of a volume of data, but it can provide an additional layer of protection by hiding a volume inside an already-encrypted volume.
TrueCrypt是一个常用的工具,可以执行大量数据的加密操作,但是它还提供了一个额外的保护层,在已经加密的卷中隐藏一个卷。
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