Encryption in cryptography is a process by which a plain text or a piece of information is converted into cipher text or a text which can only be decoded by the receiver for whom the information was intended. The algorithm that is used for the process of encryption is known as cipher. It helps in protecting consumer information, emails and other sensitive data from unauthorized access to it as well as secures communication networks. Presently there are many options to choose and find out the most secure algorithm which meets our requirements. There are four such encryption algorithms that are highly secured and are unbreakable.
RSA is an asymmetric key algorithm which is named after its creators Rivest, Shamir and Adleman. The algorithm is based on the fact that the factors of large composite number is difficult: when the integers are prime, this method is known as Prime Factorization. It is generator of public key and private key. Using public key we convert plain text to cipher text and private key is used for converting cipher text to plain text. Public key is accessible by everyone whereas Private Key is kept secret. Public Key and Private Key are kept different.Thus making it more secure algorithm for data security.
Twofish algorithm is successor of blowfish algorithm. It was designed by Bruce Schneier, John Kesley, Dough Whiting, David Wagner, Chris Hall and Niels Ferguson. It uses block ciphering It uses a single key of length 256 bits and is said to be efficient both for software that runs in smaller processors such as those in smart cards and for embedding in hardware .It allows implementers to trade off encryption speed, key setup time, and code size to balance performance. Designed by Bruce Schneiers Counterpane Systems, Twofish is unpatented, license-free, and freely available for use.
Advance Encryption Standard also abbreviated as AES, is a symmetric block cipher which is chosen by United States government to protect significant information and is used to encrypt sensitive data of hardware and software. AES has three 128-bit fixed block ciphers of keys having sizes 128, 192 and 256 bits. Key sizes are unlimited but block size is maximum 256 bits.The AES design is based on a substitution-permutation network (SPN) and does not use the Data Encryption Standard (DES) Feistel network.
Future Work: With advancement in technology it becomes more easier to encrypt data, with neural networks it becomes easier to keep data safe. Neural Networks of Google Brain have worked out to create encryption, without teaching specifics of encryption algorithm. Data Scientist and Cryptographers are finding out ways to prevent brute force attack on encryption algorithms to avoid any unauthorized access to sensitive data.
Last Updated : 25 Jul, 2019
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