Encryption is implemented with the help of mathematical keys to secure sensitive data . With this 2-way authentication using keys at the sender and recipient ends , digital certificate and public key infrastructure signs off as a very secure digital-enabled cryptography recognizing standard or protocol called ( public key infrastructure exchange ) PKIX over Internet . Concepts of PKI going on in tandem are SSL / TLS , HTTPS , IPsec , PGP / OpenPGP and S / MIME .
KPI works on data authentication via keys-enabled data encryption software via special characters such as hash (#) function depicting mathematical relationship between public and private keys with knowledge of public key in hands of people . The Certification Authority ( CA ) is the primary issuing authority for keeping data confidential in certificate management such as with Internet Service Providers ( ISP ) or an Internet Engineering Task Force ( IETF ). PKI is a central repository for managing data .
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The digital certificates in PKI system are called X 509 certificates and bound by the knowledge of an email id or a domain name server ( DNS ). Confidentiality is guaranteed by its hierarchical structure and extension of Hash function as a primary data validation key . HTTPS is the standard encryption method in e-commerce and banking applications and B2B commerce . Public key is less of a nuisance in private e-mail communications with both sender and receiver required to be a part of process .
PKI market has great contribution to securing data over the Internet from identity-barging and eavesdropping . PKI has proven to be one of the most reliable methods in secure data transmission but some impediments exist in World Wide Web with respect to procedural delays . Procedures have to be defined at very start in order to complete secure data transmission . Four types of hierarchical models exist in PKI infrastructure market . They are strict hierarchy , loose hierarchy , hub and spoke and web of trust . CA must not have any loopholes which is a criterion for establishing the PKI model . Key industries in digital certificates and public key infrastructure market include Verisign , Inc ., Comodo , GoDaddy Group , and Entrust Datacard Corp .
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