Entropy: An Essential Component of Cryptographic Security

  • Jeffrey S. Schulman
Keywords: cryptography, cybersecurity, digital rights management, encryption, entropy, security


Digital computers are deterministic, that is, for every input n, they will produce output x. Cryptographic systems use complex math to encrypt data using non-deterministically generated random keys, or pseudorandom keys, which are statistically indistinguishable from a random sample.  Protecting data and ensuring integrity are core principals of information security. How essential is the use of secure cryptographic ciphers and truly random keys to modern cryptographic security?