The techniques necessary to manage public-key cryptography (see separate entry), as well as the various systems for authentication, nonrepudiation and integrity that can be built on top of a public-key system.
From Glossary of "Weaving the Web" ( 1999-07-23) A hierarchy of "certification authorities" to allow individuals and organizations to identify each other for the purpose (principally) of doing business electronically.
The policies and procedures that exist for establishing a secure method for exchanging information within an organisation, an industry, a nation or worldwide. It makes use of Certification Authorities (CAs), Registration Authorities (RAs) and digital signatures, as well as all of the hardware and software used to manage the process. This infrastructure, consisting of policies, legislation and facilities, creates a system of trustworthy CAs and RAs that enables e-commerce to occur with an extremely high level of confidence.
ublic ey nfrastructure IETF definition: "The set of hardware, software, people, policies and procedures needed to create, manage, store, distribute, and revoke PKC s based on public-key cryptography". OpenSSL provides an Open Source implementation.
( ublic ey nfrastructure) is a secure method for exchanging information. PKI uses a public/private key, to encrypt IDs, documents, or messages. It starts with a certificate authority (CA), which issues digital certificates. Digital certificates or digital IDs authenticate the identity of people and organizations over a public system such as the Internet.
Defines a safe information system based on public key encryption (RSA, elliptic curves, etc.). This system environment includes at least one certification authority in charge of producing keys and certificates, clients (PC or smart card) using those keys or certificates, and safe servers in charge of circulating, managing and storing those keys and certificates. Public key infrastructures can apply to company Intranet systems (access control), Extranet systems (orders, invoicing, EDI) or Internet (e. trading, transaction security and document exchanges).
A process that secures e-business applications such as private e-mail, purchase orders, and workflow automation. It uses digital certificates and digital signatures to authenticate and encrypt messages and a certificate authority to handle the verification process.
A system of digital certificates, Certificate Authorities, and other registration authorities that verify the validity of each party involved in an Internet transaction. The intent is to establish a trusted relationship between the parties. PKI's various mechanisms can provide a foundation for message confidentiality, message integrity, non-repudiation (which means the author of a message cannot later claim he did not write it), and authentication. PKI is necessary and foundational for certificate-based Virtual Private Networks (VPN).