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The discrete logarithm problem based on elliptic and hyperelliptic
curves has gained a lot of popularity as a cryptographic primitive.
The main reason is that no subexponential algorithm for computing
discrete logarithms on small genus curves is currently available,
except in very special cases. Therefore curve-based cryptosystems
require much smaller key sizes than RSA to attain the same security
level. This makes them particularly attractive for implementations
on memory-restricted devices like smart cards and in high-security
applications.
The Handbook of Elliptic and Hyperelliptic Curve Cryptography
introduces the theory and algorithms involved in curve-based
cryptography. After a very detailed exposition of the mathematical
background, it provides ready-to-implement algorithms for the group
operations and computation of pairings. It explores methods for
point counting and constructing curves with the complex
multiplication method and provides the algorithms in an explicit
manner. It also surveys generic methods to compute discrete
logarithms and details index calculus methods for hyperelliptic
curves. For some special curves the discrete logarithm problem can
be transferred to an easier one; the consequences are explained and
suggestions for good choices are given. The authors present
applications to protocols for discrete-logarithm-based systems
(including bilinear structures) and explain the use of elliptic and
hyperelliptic curves in factorization and primality proving. Two
chapters explore their design and efficient implementations in
smart cards. Practical and theoretical aspects of side-channel
attacks and countermeasures and a chapter devoted to
(pseudo-)random numbergeneration round off the exposition.
The broad coverage of all- important areas makes this book a
complete handbook of elliptic and hyperelliptic curve cryptography
and an invaluable reference to anyone interested in this exciting
field.
This book presents multiprecision algorithms used in number theory
and elsewhere, such as extrapolation, numerical integration,
numerical summation (including multiple zeta values and the
Riemann-Siegel formula), evaluation and speed of convergence of
continued fractions, Euler products and Euler sums, inverse Mellin
transforms, and complex $L$-functions. For each task, many
algorithms are presented, such as Gaussian and doubly-exponential
integration, Euler-MacLaurin, Abel-Plana, Lagrange, and Monien
summation. Each algorithm is given in detail, together with a
complete implementation in the free Pari/GP system. These
implementations serve both to make even more precise the inner
workings of the algorithms, and to gently introduce advanced
features of the Pari/GP language. This book will be appreciated by
anyone interested in number theory, specifically in practical
implementations, computer experiments and numerical algorithms that
can be scaled to produce thousands of digits of accuracy.
What were the circumstances that led to the development of our
cognitive abilities from a primitive hominid to an essentially
modern human? The answer to this question is of profound importance
to understanding our present nature. Since the steep path of our
cognitive development is the attribute that most distinguishes
humans from other mammals, this is also a quest to determine human
origins. This collection of outstanding scientific problems and the
revelation of the many ways they can be addressed indicates the
scope of the field to be explored and reveals some avenues along
which research is advancing. Distinguished scientists and
researchers who have advanced the discussion of the mind and brain
contribute state-of-the-art presentations of their field of
expertise. Chapters offer speculative and provocative views on
topics such as body, culture, evolution, feelings, genetics,
history, humor, knowledge, language, machines, neuroanatomy,
pathology, and perception. This book will appeal to researchers and
students in cognitive neuroscience, experimental psychology,
cognitive science, and philosophy.
* Includes a contribution by Noam Chomsky, one of the most cited
authors of our time
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