Definitions for "Public Key Infrastructure"
Related Terms:
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Establishes security policies for a variety of network applications and services (i.e., digital certificates).
A system for securely exchanging information that includes a method for publishing the public keys used in public key cryptography and for keeping track of keys that are no longer valid. Different industry and technical groups are developing PKI technology and the National Institute for Standards and Technology (NIST) in the US is working to make sure those technologies are compatible.
Public Key Infrastructure (PKI) can be used for three things: (i) to prove you are who claim to be (authentication), (ii) to encrypt documents for privacy and (iii) to digitally "sign" documents. PKI is primarily a method of authentication which allows the user to have a "secret" and a "public" key which work as a pair. Only the user knows their secret key, but a message encrypted with that key can only be decrypted using the public key, and crucially vice versa. This means that the really important thing is that you believe that the person claiming to be Pat really is Pat. To achieve this you either need to have issued them with the secret key yourself, or to trust the person who has issued the key. This has led to the creation of companies who will verify that you are who you claim to be and issue a secret key. This system is therefore only as good as the trust in the issuing party (called a trusted third party). It is possible that governments could be the trusted third parties, if ID cards are smart cards which carry ones secret key.
Public key infrastructure is the combination of standards, protocols, and software that support digital certificates (see digital certificates).
A system of employing a Public and Private Key pair to support identification and Authentication, data confidentiality, data integrity, and key management services for parties using a public network like the Internet. A Public Key infrastructure is a complex integration of hardware, software and cryptographic components combined with policies, practices and procedures to enable business applications to operate in a secure environment. The policies, practices and procedures provide management with enforceable mechanisms to safely operate the PKI components in such a way to assure due diligence and prudent business practices.
a tool that allows secure electronic transactions, using computer hardware, specialized security software and policies and procedures which make up a certificate authority - ensuring the integrity and confidentiality of the information being delivered.
A software application that allows users to encrypt and send information securely over a public network (also see encryption).
PKI involves the use of a pair of keys for encryption and decryption: a 'public' key, which is publicly available, and a 'private' key, which must be kept secret. There is an inverse relationship between the two keys: what is encrypted with the one key, can only be decrypted by the other.
The architecture, organization, techniques, practices, and procedures that collectively support the implementation and operation of a Certificate-based public key cryptographic system. Also a process for issuing public key certificates, which includes standards, Certification Authorities, communication between authorities and protocols for managing certification processes.
is the combination of hardware, software, people, policies and procedures needed to create, manage, store, distribute and revoke Public Key Certificate based on public key cryptography.
The infrastructure used to create a secure chain of trust for Internet-based communications. A PKI solution consists of a security policy, a Certificate Authority (CA), a Registration Authority (RA), certificate distribution system, and PKI-enabled applications.
PKI is a computer technology for secure exchange of information amongst individuals and computer systems. It allows a trusted organisation, such as a bank, to issue Digital Certificates to people and organisations that need to trust each other. It is generally used in conjunction with IP. The certificates are used by their holders to prove their identity. They can also digitally sign documents and transactions. The signature proves the authenticity of the transaction and also proves that the data exchanged has not been modified or tampered with. Digital signatures are now acceptable in a court of law. The same technology is also used to encrypt data in transit so nobody other than the intended recipient can read it. Re-presentation A Direct Debit that has been returned unpaid to the originator can be represented for payment.
The architecture, organization, techniques, practices, and procedures that collectively support the implementation and operation of a certificate-based public key cryptographic system. It includes a set of policies, processes, server platforms, software and workstations, used for the purpose of administering Digital Signature Certificates and keys.
a cryptographic key and certificate delivery system that enables secure electronic financial transactions and information exchange
a networked system of Certification Authorities (CAs), Registration Authorities (RAs), Certificate Management Systems (CMSs), and X
a security management system dedicated to the management of Digital Certificates for the purposes of secure exchange of electronic messages
a set of policies, processes, and technologies used to verify, enroll and certify users of a security application
a system for managing public/private key pairs and digital certificates
a way to organise and manage keys and electronic certificates which guarantee secure data communication
Secure data exchange system comprising hardware, software, operators, procedures, policies and legal obligations. Stores and distibutes public key certificates and their validity data. Realizes a verifiable association between a public key and the holder of the corresponding private key. Main components of a PKI are policies authority, Certification Authority, Registration Authority, Repository.
(PKI): an asymmetric encryption method that uses a public key/private key system to encrypt a message. The PKI establishes the encryption algorithm, security level, and distribution policy. It involves both the signed digital certificates and signed messages, ensuring the message itself has not been tampered with.
PKI is a set of procedures and technology that enables users of a network such as the Internet to authenticate identity, and to securely and privately exchange information through the use of public key cryptography.
The set of security services that enable the use and management of public-key cryptography and certificates, including key, certificate, and policy management.11
The combination of hardware, software, people, policies and procedures needed to create, manage, store and distribute keys and certificates based on public key cryptography.
A system used to authenticate an electronic signature and/or an electronic document. The system is based on public key cryptography and involves two mathematically related keys called a "public key" and "private key."
The use of asymmetric cryptography to provide for secure, private communications over closed and open networks. Using a key pair (a public key and a private key) an author (using the receiver's public key) and receiver (using their private key) can exchange secure information. By introducing digital certificates issued by a trusted registration authority to link public keys to their owners, the ownership of the public key can be matched against the correct entity (person or organisation).
PKI is a set of policies, processes, server platforms, software, and workstations used to administer certificates and public-private key pairs, including the ability to issue, maintain, and revoke public key certificates.
A system of digital certificates, certificate authorities (CA), and other registration authorities that verify and authenticate the validity of each party involved in a transaction.
A system that provides the basis for establishing and maintaining a trustworthy networking environment through the generation and distribution of keys and certificates. To top
PKI is a method for authenticating a message sender or encrypting a message. It enables users of an insecure public network, such as the Internet, to securely and privately exchange data through the use of a public and a private cryptographic key pair that is obtained and shared through a trusted authority. It provides for a digital certificate that can identify an individual or an organization and directory services that can store and, when necessary, revoke the certificates.
An infrastructure that supports digital signatures and other public key-enabled security services. (Back to the top)
This is a concept where it is theoretically possible to obtain the public key of any person that you wish to communicate securely with over a public communications network such as the Internet, and where it is possible to verify the accuracy of the information being presented by anyone offering a 'public key certificate' as a means of proving their identity. A number of problems wait to be resolved before such an infrastructure becomes generally available and generally respected. At the time of writing it is possible to verify the identity of a number of organizations, and it is expected that over time it will be possible to extend this to include people as well as organizations.
Method of managing public key encryption. Although public key technology has the advantage of never exchanging decryption keys, it has the disadvantage of being difficult to manage. Some issues include distribution of public keys with proof of the key's ownership, and revocation of expired or terminated keys.
The infrastructure needed to support public key encryption. It requires a certificate authority to issue and verify the public keys, a registration authority...
a system to provide authentication, confidentiality and non-repudiation in online transactions, based on digital certificates and signatures.
Information security technology utilizing the principles of public key cryptography. Public key cryptography involves encrypting and decrypting information using a shared public and private key pair. Provides for secure, private communications within a public network.
PKI) The set of hardware, software, people, policies and procedures needed to create, manage, store, distribute, and revoke PKCs based on public-key cryptography.
In cryptography, a public key infrastructure is an infrastructure which allows trusted third parties to authenticate user identities. It also allows two people to encrypt information being passed between them without any need to pre-share a key. This involves issuing two cryptographic keys one which is shared with anyone who wants it and the other is kept private. Data that is encrypted with one key can only be decrypted with the other. Thus, if a user encrypts a message with a shared key, called a Public Key, only the owner of the secret key, called a private key, can decrypt and read it.
A method for exchanging information securely within organizations, industries, nations or even worldwide. A PKI uses the asymmetric encryption method for encrypting IDs and documents or messages. (this is also known as the "public/private key" method). A PKI starts with a certificate authority (CA) such as thawte, which issues and revokes digital certificates (digital IDs) authenticating the identity of people and organizations over a public system such as the Internet.
A system that performs public key management, including in particular issuance and revocation of digital certificates.
See PKI.
PKI stands for Public Key Infrastructure and is the software and hardware technology behind public key encryption technology.
A trusted and efficient key and certificate management system.
An infrastructure to support authentication through the use of digital signatures, based on public-key/private key pair encryption.
A system that uses digital certification and certificate authorities to positively identify people and ensure trust in online transactions.
The software, protocols and legal agreements that are necessary to effectively use digital certificates combine to form a Public Key Infrastructure (PKI): · A Certificate Authority (CA), that manages and signs digital certificates for an institution · Registration Authorities, operating under the auspices of the CA, that validate users as having been issued certificates · PKI management tools, including software to manage revocations, validations and renewals · Directories to store certificates, public keys, and certificate management information · Databases and key-management software to store escrowed and archived keys · Applications that can use certificates and can seek validation of others' certificates · Trust models that extend the realm of secure communications beyond the original CA · Policies that identify how an institution manages certificates, including legal liabilities and limitations, standards on contents of certificates, and actual campus practices
Provides trusted and efficient key and certificate management to support security protocols such as IPSec.
a structure of hardware, software, people, processes and policies that employs digital signature technology to facilitate a verifiable association between the public component of an asymmetric public key and a specific end entity. The public key may be provided for digital signature use and/or for message encryption key exchange or negotiation.
A certificate system that verifies and authenticates the validity of each party involved in a transaction.
The architecture, organization, techniques, practices, and procedures that collectively support the implementation and operation of a Certificate-based Public Key Cryptography system. (See Public Key Cryptography.)
A term generally used to describe the laws, policies, standards, and software that regulate or manipulate certificates and public and private keys. All of this implies a set of standards for applications that use encryption.
Public Key Infrastructure (PKI) is a key management system for asymmetric (public/private) keys.
The term generally used to describe the laws, policies, standards, and software that regulate or manipulate certificates and public and private keys. In practice, it is a system of digital certificates, certification authorities, and other registration authorities that verify and authenticate the validity of each party involved in an electronic transaction. Standards for PKI are still evolving, even though they are being widely implemented as a necessary element of electronic commerce. See also: certificate; certification authority (CA); public key
The system used to verify, register and verify the identity of the users of a security application. The system is based on asymmetric cryptographic keys: one of the keys is in the public domain (i.e. known to all users); the other key is private to the originator who uses it to generate a digital signature which can be verified by the recipient using the public key. See cryptographic keys.
In cryptography, a public key infrastructure (PKI) is an arrangement that provides for trusted third party vetting of, and vouching for, user identities. It also allows binding of public keys to users. This is usually carried out by software at a central location together with other coordinated software at distributed locations.
Defines protocols to support online interaction.