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In the computer security or Information security fields, there are a number of tracks a professional can take to demonstrate qualifications. [Notes 1] Four sources categorizing these, and many other credentials, licenses, and certifications, are:
Public key certificate. In cryptography, a public key certificate, also known as a digital certificate or identity certificate, is an electronic document used to prove the validity of a public key. [ 1][ 2] The certificate includes the public key and information about it, information about the identity of its owner (called the subject), and the ...
Certificate authority. In cryptography, a certificate authority or certification authority ( CA) is an entity that stores, signs, and issues digital certificates. A digital certificate certifies the ownership of a public key by the named subject of the certificate. This allows others (relying parties) to rely upon signatures or on assertions ...
X.509. In cryptography, X.509 is an International Telecommunication Union (ITU) standard defining the format of public key certificates. [ 1] X.509 certificates are used in many Internet protocols, including TLS/SSL, which is the basis for HTTPS, [ 2] the secure protocol for browsing the web. They are also used in offline applications, like ...
Certificate signing request. In public key infrastructure (PKI) systems, a certificate signing request ( CSR or certification request) is a message sent from an applicant to a certificate authority of the public key infrastructure (PKI) in order to apply for a digital identity certificate. The CSR usually contains the public key for which the ...
Root certificate. The role of root certificate as in the chain of trust. 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 ...
In cryptography and computer security, self-signed certificates are public key certificates that are not issued by a certificate authority (CA). These self-signed certificates are easy to make and do not cost money. However, they do not provide any trust value. For instance, if a website owner uses a self-signed certificate to provide HTTPS ...
International Certification of Digital Literacy ( ICDL ), [ 1] formerly known as European Computer Driving Licence ( ECDL ), is a computer literacy certification program provided by ECDL Foundation, [ 2] a not-for-profit organisation. The ICDL / ECDL certification is a globally recognised information and communication technology (ICT) and ...