The History of Cryptography

This provides the key to translation by historians of ancient Egyptian hieroglyphics. And it was considered to be a dead language for more than 1500 years at this time. ("History of Rosetta Stone", 2014) During the Middle Ages Arabs made major progress in encryption and decryption. The most important of these is the introduction of the frequency analysis method around the year 800 AD. Before the beginning of World War II this was considered one of the greatest advances in the field of decryption. ("Medieval Cryptography", 2014) The hypothesis of frequency analysis is that certain letters appear more frequently in any language than others.

Public key encryption is the greatest revolution in the history of encryption. Also called asymmetric cryptosystem. This provides a new perspective on the concept of confidentiality, integrity, and authentication. The algorithm of this scheme is based on mathematical functions such as number theory, discrete logarithm, factorization, etc., not substitution and substitution. There are six elements in this program. Public key cryptography provides three services that can classify applications under these services: confidentiality or data confidentiality by encryption / decryption, digital signature and certificate authentication, and key exchange . They can also be used to maintain consistency. A brief description of these services is as follows.

What is the math behind elliptic curve encryption? Author: Hans Knutson. "Public keys, secret keys and digital signatures form the basic building blocks of public key cryptography, no matter what mathematical rationale you implement public key cryptosystems, In order to meet at least the following requirements, the private key of the public key is computationally impossible (2) It corresponds to the public key without revealing useful information about the secret key within the process You can prove that you know the secret key, how to organize the message, so the certificate forms the digital signature of the message. "