Cryptographic Algorithms

 

Cryptographic algorithms

Cryptosystems use procedures as cryptographic algorithms, or ciphers, to encrypt and decrypt messages to secure communications among computer systems, devices such as smartphones, and applications. In cryptography the primary element is the creation of ciphers. Ciphers are written codes that disguise key information to entities that aren't authorized for access, so that the ciphertext constitutes a permutation of the plaintext.  This process, embedded in protocols and written in software that runs on operating systems and networked computer systems, involves public and private key generation for data encryption/decryption, digital signing and verification for message authentication, and key exchange.