Strong algorithms (Symmetric VS Asymmetric)
In modern cryptography more than twenty different encryption algorithms are known. If they are properly implemented and used with a key long enough, they can be quite strong. The most commonly used algorithms are hash functions (GOST R 34.11-94, SHA-1, SHA-2, MD4, MD5, MD6), asymmetric encryption system (RSA, Digital Signature ElGamal), symmetrical system (GOST 28147-89 , DES, AES, Twofish, Blowfish, Camellia, RC4, IDEA). In many countries, some of these encryption systems were approved as national standards.
The notion of cryptographically strong. Cryptanalysis
An algorithm that successfully resisted cryptanalysis is considered strong. The strength criteria are usually formal and do not have any strict numerical expressions. For example, an algorithm that requires unattainable computing power will be considered as strong. Or the one that will require so much time to be hacked, that the encrypted information will lose its relevance and value to the cracker.
Security through Obscurity principle
In the field of computer security, often can be encountered specialists’ debates on the information disclosure policy (or on the contrary, secrecy). Few decades ago, the most important for the software vendors as well as for the cryptographic algorithm vendors was the policy of non-disclosure, and thus the code itself with in particular the information on all known vulnerabilities, so-called weaknesses of the program or “crypto cipher”, that remained a mystery and was kept in secrecy. Often, such a policy is called «Security through Obscurity».
Encryption and Security
Nowadays, with the development of data networks more importance is given to the information safety than before. Information is both a product and a major competitive advantage, for this reason many things that some people try to keep in secret, other will necessarily want to unveil. That is why when sending sensitive data over insecure channels, various encryption algorithms should be used. Cryptology or knowledge system, proposes a scientific approach to study these algorithms, it is sub-divided into cryptography (the science of privacy and encryption) and cryptanalysis.
Cryptography: What Is It And Why It Matters
Cryptography, or cryptology, is the study of hiding information. While this seems simple, keep in mind that modern cryptography is a combination of computer science, engineering and mathematics, a complex algorithm designed to protect some of today's most vital information. From the ATM card in your wallet to the information you type into your computer to access your bank account, all of this is protected by cryptography.
How Cryptography Is Useful in Daily Life
Cryptography, which includes both encryption and decryption, is one of the most important tools you have to protect yourself. Hands down, there is nothing that will protect you more so than having your data protected by a trustworthy software product. Most people do not think anything of cryptography. They may not even know what it is. However, what you may believe is protecting you is not.