Terms

Description

Authentication

Authentication is the act of establishing or confirming something (or someone) as authentic, that is, that claims made by or about the subject are true.

DER

Distinguished Encoding Rules (DER), is a message transfer syntax specified by the ITU in X.690. The Distinguished Encoding Rules of ASN.1 is an International Standard drawn from the constraints placed on basic encoding rules (BER) encodings by X.509. DER encodings are valid BER encodings. DER is the same thing as BER with all but one sender's options removed.

Integrity

Integrity as a concept has to do with perceived consistency of actions, values, methods, measures, principles, expectations and outcome.

PEM

The first known use of the encoding now called MIME Base 64 was in the Privacy-enhanced Electronic Mail (PEM) protocol, proposed by RFC 989 in 1987. PEM defines a "printable encoding" scheme that uses Base 64 encoding to transform an arbitrary sequence of octets to a format that can be expressed in short lines of 6-bit characters, as required by transfer protocols such as SMTP

SHA

SHA stands for Secure Hash Algorithm. The SHA hash functions are a set of cryptographic hash functions designed by the National Security Agency (NSA) and published by the NIST as a U.S. Federal Information Processing Standard. SHA stands for Secure Hash Algorithm.