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In cryptography and computer security, a root certificate is a public key certificate that identifies a root certificate authority (CA). [1] Root certificates are self-signed (and it is possible for a certificate to have multiple trust paths, say if the certificate was issued by a root that was cross-signed) and form the basis of an X.509 ...
The roles of root certificate, intermediate certificate and end-entity certificate as in the chain of trust. In computer security, a chain of trust is established by validating each component of hardware and software from the end entity up to the root certificate. It is intended to ensure that only trusted software and hardware can be used ...
A root CA certificate may be the base to issue multiple intermediate CA certificates with varying validation requirements. In addition to commercial CAs, some non-profits issue publicly-trusted digital certificates without charge, for example Let's Encrypt.
A Trusted Platform Module (TPM) is a secure cryptoprocessor that implements the ISO/IEC 11889 standard. Common uses are verifying that the boot process starts from a trusted combination of hardware and software and storing disk encryption keys. A TPM 2.0 implementation is part of the Windows 11 system requirements. [1]
In version 3.0.2-g1, the certificate of a certificate authority CAcert.org has been added to the list of trusted root certificates. Concern about that decision has been raised in a discussion on the savannah-hackers-public mailing list. [24] The GNU LibreJS extension detects and blocks non-free non-trivial JavaScript. [25]
In cryptographic systems with hierarchical structure, a trust anchor is an authoritative entity for which trust is assumed and not derived. [1]In the X.509 architecture, a root certificate would be the trust anchor from which the whole chain of trust is derived.
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The root certificate was used to sign two intermediate certificates, [44] which are also cross-signed by the certificate authority IdenTrust. [7] [45] One of the intermediate certificates is used to sign issued certificates, while the other is kept offline as a backup in case of problems with the first intermediate certificate. [44] Because the ...