可信计算基础（Trusted Computing Base，TCB）是 4.1 版以后的 IBM AIX 版本提供的安全功能。

Trusted Computing Base (TCB) is the security feature available with IBM AIX versions later than version 4.1.

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对于这样的可信实体，对应的散列值和签名是作为其AIX可安装文件的一部分进行计算和分发的，并存储在目标系统上的TSD中。

For such a trusted entity, the hash value and signature are calculated and shipped as part of the their AIX installables and stored in TSD on the destination system.

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可信执行环境是IBM AIX V6.1的高级安全功能，相对于tcb提供了以下优点。

The Trusted Execution environment is the advanced security feature of IBM AIX V6.1, which provides the following advantages over TCB.

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