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A

AES 

Advanced Encryption Standard (AES) also known as Rijndael, is a encryption method that operates on fixed-length groups of bits and termed blocks.


D

DES  

Data Encryption Standard (DES) is a method for encrypting information.


E

ESMTP 

Extended Simple Mail Transfer Protocol (ESMTP) specifies extensions to the original protocol (SMTP) for sending mail that supports graphics, audio, and video files, and text in various national languages.


I

IDEA 

IDEA (International Data Encryption Algorithm (IDEA) is a 64-bit iterative block cipher with a 128-bit key.


IMAP 

Internet Message Access Protocol (IMAP) is a method for accessing electronic mail or bulletin board messages stored in a mail server.


M

MD5  

Message Digest algorithm 5 (MD5) is a widely used cryptographic hash function with a 128-bit hash value.


R

RIPEMD 

RACE Integrity Primitives Evaluation Message Digest (RIPEMD) is a message digest algorithm and cryptographic hash function.


RSA 

Rivest Shamir Adleman (RSA) is an algorithm for public-key cryptography. It is the first algorithm suitable for signing and encryption, and one of the first great advances in public key cryptography.


S

SMTP 

Simple Mail Transfer Protocol (SMTP) is a simple, text-based protocol for sending mail messages.


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