AES encryption

AES encryption

AES encryption web tool to encrypt and decrypt text using AES encryption algorithm. You can chose 128, 192 or 256-bit long key size for encryption and decryption. The result of the process is downloadable in a text file.  AES (acronym of Advanced Encryption Standard) is a symmetric encryption algorithm. The algorithm was developed by two...

Asymmetric Encryption

There are two basic techniques for encrypting information: symmetric encryption (also called secret key encryption) and asymmetric encryption (also called public-key encryption.)   Symmetric Encryption Symmetric encryption is the oldest and best-known technique. A secret key, which can be a number, a word, or just a string of random letters, is applied to the...

The goal of non-repudiation

Nonrepudiation is a method of guaranteeing message transmission between parties via digital signature and/or encryption. It is one of the five pillars of information assurance (IA). The other four are availability, integrity, confidentiality and authentication. Nonrepudiation is often used for digital contracts, signatures and email messages. By using a data hash, proof of authentic...