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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 ...
In a typical public-key infrastructure (PKI) scheme, the certificate issuer is a certificate authority (CA), [3] usually a company that charges customers a fee to issue certificates for them. By contrast, in a web of trust scheme, individuals sign each other's keys directly, in a format that performs a similar function to a public key certificate.
A public key infrastructure (PKI) is a set of roles, policies, hardware, software and procedures needed to create, manage, distribute, use, store and revoke digital certificates and manage public-key encryption.
A website operator can choose to either pin the root certificate public key of a particular root certificate authority, allowing only that certificate authority (and all intermediate authorities signed by its key) to issue valid certificates for the website's domain, and/or to pin the key(s) of one or more intermediate issuing certificates, or ...
In public-key cryptography and computer security, a root-key ceremony is a procedure for generating a unique pair of public and private root keys. Depending on the certificate policy of a system, the generation of the root keys may require notarization, legal representation, witnesses, or “key-holders” to be present.
Because the consequences of a compromised root CA are so great (up to and including the need to re-issue each and every certificate in the PKI), all root CAs must be kept safe from unauthorized access. A common method to ensure the security and integrity of a root CA is to keep it in an offline state. It is only brought online when needed for ...
The US Government's PKI is a massive book of over 2500 pages. If an organization's PKI diverges too much from that of the IETF or CA/Browser Forum, then the organization risks losing interoperability with common tools like web browsers, cURL, and Wget. For example, if a PKI has a policy of only issuing certificates on Monday, then common tools ...
DIACAP defined a DoD-wide formal and standard set of activities, general tasks and a management structure process for the certification and accreditation (C&A) of a DoD IS which maintained the information assurance (IA) posture throughout the system's life cycle.