6 Result(s)
within
Conference Paper
Yuval Yarom
English
Computer Communication Networks
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Chapter and Conference Paper
Side-Channeling the Kalyna Key Expansion
In 2015, the block cipher Kalyna has been approved as the new encryption standard of Ukraine. The cipher is a substitution-permutation network, whose design is based on AES, but includes several different feat...
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Chapter and Conference Paper
Sliding Right into Disaster: Left-to-Right Sliding Windows Leak
It is well known that constant-time implementations of modular exponentiation cannot use sliding windows. However, software libraries such as Libgcrypt, used by GnuPG, continue to use sliding windows. It is wi...
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Chapter and Conference Paper
Flush, Gauss, and Reload – A Cache Attack on the BLISS Lattice-Based Signature Scheme
We present the first side-channel attack on a lattice-based signature scheme, using the Flush+Reload cache-attack. The attack is targeted at the discrete Gaussian sampler, an important step in the Bimodal Lattice...
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Chapter and Conference Paper
CacheBleed: A Timing Attack on OpenSSL Constant Time RSA
The scatter-gather technique is a commonly implemented approach to prevent cache-based timing attacks. In this paper we show that scatter-gather is not constant time. We implement a cache timing attack against...
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Chapter and Conference Paper
Just a Little Bit More
We extend the Flush+Reload side-channel attack of Benger et al. to extract a significantly larger number of bits of information per observed signature when using OpenSSL. This means that by observing only 25 sign...
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Chapter and Conference Paper
Evaluation and Cryptanalysis of the Pandaka Lightweight Cipher
There is a growing need to develop lightweight cryptographic primitives suitable for resource-constrained devices permeating in increasing numbers into the fabric of life. Such devices are exemplified none mor...
