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A High-Assurance, Automatically-Synthesized, Evaluator for Machine-Checked (Proactively) Secure Multi-Party Computation
Secure Multi-Party Computation Verified Implementation High-Assurance Cryptography
2019/8/14
Secure Multi-Party Computation (MPC) enables a group of nn distrusting parties to jointly compute a function using private inputs. MPC guarantees correctness of computation and confidentiality of inpu...
IoT-Friendly AKE: Forward Secrecy and Session Resumption Meet Symmetric-Key Cryptography
Security protocols Authenticated key exchange Symmetric-key cryptography
2019/8/13
With the rise of the Internet of Things and the growing popularity of constrained end-devices, several security protocols are widely deployed or strongly promoted (e.g., Sigfox, LoRaWAN, NB-IoT). Base...
A Comparison of Single-Bit and Multi-Bit DPA for Attacking AES128 on an ATmega328P
AES DPA multi-bit DPA
2019/8/8
Side channel attacks have demonstrated in the past that it is possible to break cryptographic algorithms by attacking the implementation rather than the algorithm. This paper compares an adaptation of...
Multi-client Secure Encrypted Search Using Searching Adversarial Networks
Searchable Encryption Multi-keyword Ranked Search Multi-owner Model
2019/8/8
With the rapid development of cloud computing, searchable encryption for multiple data owners model (multi-owner model) draws much attention as it enables data users to perform searches on encrypted c...
Improvements in Everlasting Privacy: Efficient and Secure Zero Knowledge Proofs
Voting Everlasting Privacy Zero Knowledge Proofs
2019/8/8
Verifiable electronic voting promises to ensure the correctness of elections even in the presence of a corrupt authority, while providing strong privacy guarantees. However, few practical systems with...
Timed-Release Encryption With Master Time Bound Key (Full Version)
timed-release encryption Weil pairing bilinear Diffie-Hellman problem
2019/8/8
Timed-release encryption allows senders to send a message to a receiver which cannot decrypt until a server releases a time bound key at the release time. The release time usually supposed to be known...
The Power of NIST Cryptographic Statistical Tests Suite
Statistical testing Cryptographic evaluation Random bit generators
2019/8/8
This paper is focused on an open question regarding the correlation and the power of NIST statistical test suite. If we found some correlation between these statistical tests, then we can improve the ...
Efficient and secure software implementations of Fantomas
LS-Design Fantomas side-channel resistance
2019/8/8
In this paper, the efficient software implementation and side-channel resistance of the LS-Design construction is studied through a series of software implementations of the Fantomas block cipher, one...
Practical Forgery Attacks on Limdolen and HERN
NIST lightweight cryptography standardization project AEAD Limdolen
2019/8/8
In this paper, we investigate the security of Limdolen and HERN which are Round 1 submissions of the ongoing NIST Lightweight Cryptography Standardization Project. We show that some non-conservative d...
Simulation-Sound Proofs for LWE and Applications to KDM-CCA2 Security
LWE standard model Naor-Yung
2019/8/8
The Naor-Yung paradigm is a well-known technique that constructs IND-CCA2-secure encryption schemes by means of non-interactive zero-knowledge proofs satisfying a notion of simulation-soundness. Until...
A Practicable Timing Attack Against HQC and its Countermeasure
HQC BCH decoding Timing attack
2019/8/8
In this paper, we present a practicable chosen ciphertext timing attack retrieving the secret key of HQC. The attack exploits a correlation between the weight of the error to be decoded and the runnin...
Efficiently Masking Binomial Sampling at Arbitrary Orders for Lattice-Based Crypto
Masking Post-quantum Cryptography
2019/8/8
With the rising popularity of lattice-based cryptography, the Learning with Errors (LWE) problem has emerged as a fundamental core of numerous encryption and key exchange schemes. Many LWE-based schem...
One Bit is All It Takes: A Devastating Timing Attack on BLISS’s Non-Constant Time Sign Flips
Lattice-Based Cryptography Cryptanalysis BLISS
2019/8/7
As one of the most efficient lattice-based signature schemes, and one of the only ones to have seen deployment beyond an academic setting (e.g., as part of the VPN software suite strongSwan), BLISS ha...
Although Byzantine Agreement (BA) has been studied for three decades, perhaps somewhat surprisingly, there still exist significant gaps in our understanding regarding its round complexity. First, alth...
Accelerating V2X Cryptography through Batch Operations
Implicit certificates ECQV Batch ECDSA
2019/8/6
The increasing communication capabilities of vehicles are paving the way for promising road safety and traffic management applications. But the rise of connected vehicles also potentially introduces m...