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The trusted computing base (TCB) of a computer system is the set of all hardware, firmware, and/or software components that are critical to its security, in the sense that bugs or vulnerabilities occurring inside the TCB might jeopardize the security properties of the entire system.
A trusted system is one that the user feels safe to use, and trusts to perform tasks without secretly executing harmful or unauthorized programs; trusted computing refers to whether programs can trust the platform to be unmodified from the expected, and whether or not those programs are innocent or malicious or whether they execute tasks that ...
Trusted Computing encompasses six key technology concepts, of which all are required for a fully Trusted system, that is, a system compliant to the TCG specifications: Endorsement key; Secure input and output; Memory curtaining / protected execution; Sealed storage; Remote attestation; Trusted Third Party (TTP)
The simplest trust metric is to count the number of users who trust the rated user, but this system is vulnerable to attack (for instance, the use of sockpuppet accounts to trust oneself). Another is to count how many links there are in the chain of trust between yourself and another user: if I trust A, who trusts B, who trusts C, and this is ...
BeyondTrust (formerly Symark) is an American company that develops, markets, and supports a family of privileged identity management / access management (PIM/PAM), privileged remote access, and vulnerability management products for UNIX, Linux, Windows and macOS operating systems.
When TPM is used, the firmware and the operating system are responsible for ensuring integrity. For example, the Unified Extensible Firmware Interface (UEFI) can use TPM to form a root of trust: The TPM contains several Platform Configuration Registers (PCRs) that allow secure storage and reporting of security-relevant metrics. These metrics ...
WOT Services is the developer of MyWOT (also known as WOT and Web of Trust), an online reputation and Internet safety service which shows indicators of trust about existing websites. The confidence level is based both on user ratings and on third-party malware , phishing , scam and spam blacklists . [ 1 ]
The static chain of trust starts when the platform powers on (or the platform is reset), which resets all PCRs to their default value. For server platforms, the first measurement is made by hardware (i.e., the processor) to measure a digitally signed module (called an Authenticated Code Module or ACM) provided by the chipset manufacturer.