Rohrbach's maxim

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In cryptology , Rohrbach's maxim describes a motto that the German mathematician and cryptologist Hans Rohrbach (1903-1993) formulated. He advises that when assessing the security of a cryptological method , the possibility of encryption errors should also be taken into account, and points out that it cannot be expected that a key machine or cryptosystem will ever be used error-free at all times.

Rohrbach's maxim is:

"When assessing the cryptanalytic security of a procedure, encryption errors and other violations of the encryption discipline must be included."

- Hans Rohrbach

literature

Web links

  • Security Maxim's PDF; 184 kB. Rohrbach's Maxim: "No security device, system, or program will ever be used properly (the way it was designed) all the time." (English). Retrieved May 27, 2016.
  • Schneier on Security Rohrbach’s Maxim: "No security device, system, or program will ever be used properly (the way it was designed) all the time." (English). Retrieved May 27, 2016.

Individual evidence

  1. Friedrich L. Bauer : Deciphered secrets - methods and maxims of cryptology . Springer, Berlin 2000 (3rd edition), p. 217. ISBN 3-540-67931-6 .
  2. Friedrich L. Bauer : Deciphered secrets - methods and maxims of cryptology . Springer, Berlin 2000 (3rd edition), p. 459. ISBN 3-540-67931-6 .
  3. Friedrich L. Bauer : Deciphered secrets - methods and maxims of cryptology . Springer, Berlin 2000 (3rd edition), p. 226. ISBN 3-540-67931-6 .