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Challenges in Cryptography

IEEE Security & Privacy, 2021
Cryptography as a field of study is exciting because it brings together beautiful mathematics and many cutting-edge areas of computer science and engineering to find solutions that touch all aspects of life in a digital era. In a single day at a cryptography conference, one can hear talks on election security and legislation on regulating encryption ...
Alfred Menezes, Douglas Stebila
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Cryptography

IBM Journal of Research and Development, 1987
This paper is concerned with two aspects of cryptography in which the author has been working. One is the Data Encryption Standard (DES), developed at IBM and now in wide use for commercial cryptographic applications. This is a ``private key'' system; the communicants share a secret key, and the eavesdropper will succeed if he can guess this key among ...
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Relativized cryptography

IEEE Transactions on Information Theory, 1979
It appears to be very difficult to give a formal definition of computational security for public-key cryptography. A slightly different notion, called transient-key cryptography, is defined for which a natural definition of security against chosen-plaintext attacks is given.
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Threshold Cryptography

European Transactions on Telecommunications, 1994
AbstractIn the traditional scenario in cryptography there is one sender, one receiver and an active or passive eavesdropper who is an opponent. Large bank transactions require two people to sign, implying two senders. So the power to generate a valid transaction is shared.
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Commercialization of cryptography

Information Management & Computer Security, 1997
Presents the major approaches for achieving commercial security on the Internet, public key and key escrow. Discusses the implications of (US) legislation putting limitations on the type or strength of key it is best to employ for a given business. Presents the typical modes of delivering authentication and other services.
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What is cryptography?

IEEE Security & Privacy Magazine, 2006
Cryptography's aim is to construct schemes or protocols that can still accomplish certain tasks even in the presence of an adversary. A basic task in cryptography is to enable users to communicate securely over an insecure channel in a way that guarantees their transmissions' privacy and authenticity.
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Cryptography for #MeToo

Proceedings of the 25th ACM Symposium on Access Control Models and Technologies, 2020
Reporting sexual assault and harassment is an important and difficult problem. Since late 2017, it has received increased attention as the viral #MeToo movement has brought about accusations against high-profile individuals and a wider discussion around the prevalence of sexual violence.
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The Challenge of Cryptography

IEEE Transactions on Systems, Man, and Cybernetics, 1976
This correspondence comments on cryptography as a vocation or avocation for the systems scientist. A nontrivial challenge is included.
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A THEORY OF CRYPTOGRAPHY

Cryptologia, 1979
It Is proposed that a theory of cryptography covering both substitution and transposition ciphers in a general way be considered so as to not overlook, various characteristics of cipher systems. A cipher consists of correspondence classes and their sequence, the classes being roughly equal to equivalence classes in algebra. Examples are given.
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The Future of Cryptography

Information Systems Security, 2007
We've seen where cryptography came from, but where is it going? In this article, I pose a number of unsolved problems: challenges that face us with which we have to deal.
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