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Is there a chapter on complexity in cryptography?


Asked by Kaylie Dixon on Dec 01, 2021 FAQ



One chapter is therefore dedicated to the application of complexity theory in cryptography and one deals with formal approaches to protocol design. Both of these chapters can be read without having met complexity theory or formal methods before. Much of the approach of the book in relation to public key algorithms is reductionist in nature.
Likewise,
Circuit complexity is a topic of great relevance to cryptography. Optimization of circuits leads to efficiency improvement in a wide range of algorithms and protocols, such as for symmetric-key and public-key cryptography, zero-knowledge proofs and secure multi-party computation. The circuit complexity project has two main goals:
Moreover, Cryptography is the science of using mathematics to encrypt and decrypt data. Cryp- tography enables you to store sensitive information or transmit it across insecure net- works (like the Internet) so that it cannot be read by anyone except the intended recipient.
Thereof,
Computational infeasibility means a computation which although computable would take far too many resources to actually compute. Ideally in cryptography one would like to ensure an infeasible computation’s cost is greater than the reward obtained by computing it. At first glance this seems to be an odd notion to base a cryptographic system on.
In respect to this,
The Public-Key Cryptography Standards (PKCS) comprise a group of cryptographic standards that provide guidelines and application programming interfaces (APIs) for the usage of cryptographic methods. As the name PKCS suggests, these standards put an emphasis on the usage of public key (that is, asymmetric) cryptography.