The terms Trustworthy Computing and Trusted Computing had distinct meanings. A given system can be trustworthy but not trusted and vice versa.
The National Security Agency (NSA) defines a trusted system or component as one "whose failure can break the security policy", and a trustworthy system or component as one "that will not fail". Trusted Computing has been defined and outlined with a set of specifications and guidelines by the Trusted Computing Platform Alliance (TCPA). These include: secure input and output, memory curtaining, sealed storage, and remote attestation. As stated above, Trustworthy Computing aims to build consumer confidence in computers, by making them more reliable, and thus more widely used and accepted.
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