Concept
Curve25519
Related publications (14)
On the Theory and Practice of Modern Secure Messaging
Billions of people now have conversations daily over the Internet. A large portion of this communication takes place via secure messaging protocols that offer "end-to-end encryption'" guarantees and resilience to compromise like the widely-used Double Ratc ...
EPFL2024Secure and Efficient Cryptographic Algorithms in a Quantum World
Since the advent of internet and mass communication, two public-key cryptographic algorithms have shared the monopoly of data encryption and authentication: Diffie-Hellman and RSA. However, in the last few years, progress made in quantum physics -- and mor ...
EPFL2024Cryptographic Administration for Secure Group Messaging
Serge Vaudenay, Daniel Patrick Collins
Many real-world group messaging systems delegate group administration to the application level, failing to provide formal guarantees related to group membership. Taking a cryptographic approach to group administration can prevent both implementation and pr ...
2023Shape Projectors for Landmark-Based Spline Curves
Michaël Unser, Daniel Andreas Schmitter
We present a generic method to construct orthogonal projectors for two-dimensional landmark-based parametric spline curves. We construct vector spaces that define a geometric transformation (e.g., affine, similarity, and scaling) that is applied to a refer ...
2017When Constant-time Source Yields Variable-time Binary: Exploiting Curve25519-donna Built with MSVC 2015
The elliptic curve Curve25519 has been presented as pro- tected against state-of-the-art timing attacks [2]. This paper shows that a timing attack is still achievable against a particular X25519 implemen- tation which follows the RFC 7748 requirements [11] ...
Springer Int Publishing Ag2016Efficient Ephemeral Elliptic Curve Cryptographic Keys
We show how any pair of authenticated users can on-the-fly agree on an elliptic curve group that is unique to their communication session, unpredictable to outside observers, and secure against known attacks. Our proposal is suitable for deployment on cons ...
Springer-Verlag Berlin2015Interaural correlation discrimination from diffuse field reference correlations
Christof Faller, Andreas Walther
Just noticeable differences in interaural correlation (rho-jnds) from diffuse sound field reference correlations are obtained. In a three-interval, three-alternative forced-choice procedure, rho-jnds are measured for positive and negative deviations from n ...
Acoustical Soc Amer Amer Inst Physics2013On isogeny classes of Edwards curves over finite fields
We count the number of isogeny classes of Edwards curves over finite fields, answering a question recently posed by Rezaeian and Shparlinski. We also show that each isogeny class contains a {\em complete} Edwards curve, and that an Edwards curve is isogeno ...
Elsevier2012Low-Latency Elliptic Curve Scalar Multiplication
This paper presents a low-latency algorithm designed for parallel computer architectures to compute the scalar multiplication of elliptic curve points based on approaches from cryptographic side-channel analysis. A graphics processing unit implementation u ...
Springer Verlag2012A Related-Key Attack against Multiple Encryption based on Fixed Points
Serge Vaudenay, Atefeh Mashatan, Asli Bay
In order to alleviate the burden of short keys, encrypting a multiple times has been proposed. In the multiple encryption mode, there may be encryptions under the same or different keys. There have been several attacks against this encryption mode. When tr ...
Springer2011