Crypto 2021

August 16-20 2021


Workshop on Attacks in Cryptography


Cryptography is often thought of as the bright spot of practical security, a mathematical paradise where security can be rigorously proven and issues like buffer overflows are in someone else’s department. However, there is a growing community of researchers who regularly find serious flaws in widely deployed cryptographic implementations and protocols. In recent years, this type of research has mostly been published in systems security conferences. This workshop will bring together researchers who work on cryptographic attacks and provide a showcase of their work for the Crypto community. This is the fourth edition of the WAC workshop, which has been established by Nadia Heninger.

This workshop will take place virtually on Sunday, August 15, 2021 as an affiliated event of Crypto 2021.


Daniel Moghimi

contact information for WAC workshop


Each speaker will give a 15 minute live talk, followed by 5 minutes of Q&A. A longer version of each talk will be linked below in advance of the event.

Please note that this is a tenative schedule and subject to change.

8:00 - 8:45
Session I
  • Raccoon Attack: Finding and Exploiting Most-Significant-Bit-Oracles in TLS-DH(E)

    Robert Merget

  • PARASITE: PAssword Recovery Attack against Srp Implementations in ThE wild

    Daniel de Almeida Braga

8:45 - 9:00
9:00 - 9:45
Session II
  • Fragment and Forge: Breaking Wi-Fi Through Frame Aggregation and Fragmentation

    Mathy Vanhoef

  • Partitioning Oracle Attacks

    Julia Len

9:45 - 10:00
10:00 - 11:00
  • TBA

    Elie Bursztein

11:00 - 11:30
11:30 - 12:15
Session III
  • undeSErVed trust: Exploiting Permutation-Agnostic Remote Attestation

    Luca Wilke

  • Fault Attacks on CCA-secure Lattice KEMs

    Peter Pessl

12:15 - 12:30
12:30 - 13:15
Session IV
  • Baby Sharks: Small-Subgroup Attacks to Disrupt Large Distributed Systems

    Omer Shlomovits

  • A Side Journey To Titan

    Victor Lomne