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In cryptography, security level is a measure of the strength that a cryptographic primitive — such as a cipher or hash function — achieves. Security level is usually expressed as a number of "bits of security", where n-bit security means that the attacker would have to perform 2n operations to break it, but other methods have been proposed that more closely model the costs for an attacker. This allows for convenient comparison between algorithms and is useful when combining multiple primitives in a hybrid cryptosystem, so there is no clear weakest link. For example, AES-128 is designed to offer a 128-bit security level, which is considered roughly equivalent to a RSA using 3072-bit key.
References
- ↑ Cf. Library of Congress catalog data
- ↑ "Alfred Menezes: Mini-biography", Certicom company website
- ↑ Koblitz, Neal (2008). Random Curves: Journeys of a Mathematician. Springer-Verlag. ISBN 9783540740773.
- ↑ "Alfred Menezes" . Retrieved 11 April 2018.
- ↑ Menezes, Alfred J. (1993). Elliptic Curve Public Key Cryptosystems. Kluwer Academic Publisher. ISBN 9780792393689.
- ↑ Menezes, Alfred J.; van Oorschot, Paul; Vanstone, Scott A. (1996). Handbook of Applied Cryptography. CRC Press. ISBN 0-8493-8523-7.
- ↑ "Professional Activities" . Retrieved 11 April 2018.
- ↑ "Another look at provable security". YouTube . 4 July 2012. Archived from the original on 2021-12-22. Retrieved 11 April 2018.
- ↑ Neal, Koblitz; Alfred, Menezes. "Another Look at Provable Security". www.math.uwaterloo.ca.
