Gregor Leander

Gregor Leander

Institution: Ruhr-Universität Bochum / CASA

Research Hub(s):

Hub A: Future Cryptography
Hub B: Embedded Security
Hub D: Usability


Adress: MC 1/42


On Perfect Linear Approximations and Differentials over Two-Round SPNs Breaking HALFLOOP-24 New Attacks from Old Distinguishers Improved Attacks on Serpent New Instances of Quadratic APN Functions Decomposing Linear Layers Improved Differential-Linear Attacks with Applications to ARX Ciphers PRINCEv2 - More Security for (Almost) No Overhead SCARF: A Low-Latency Block Cipher for Secure Cache-Randomization A Cautionary Note on Protecting Xilinx' UltraScale(+) Bitstream Encryption and Authentication Engine Trims and extensions of quadratic APN functions Simon's Algorithm and Symmetric Crypto: Generalizations and Automatized Applications ClepsydraCache - Preventing Cache Attacks with Time-Based Evictions Strong and Tight Security Guarantees Against Integral Distinguishers Generic Framework for Key-Guessing Improvements Cryptanalysis of the GPRS Encryption Algorithms GEA-1 and GEA-2 Lower Bounds on the Degree of Block Ciphers Constructing and Deconstructing Intentional Weaknesses in Symmetric Ciphers SKINNY-AEAD and SKINNY-Hash Modeling for Three-Subset Division Property without Unknown Subset -Improved Cube Attacks against Trivium and Grain-128AEAD Out of Oddity – New Cryptanalytic Techniques against Symmetric Primitives Optimized for Integrity Proof Systems Improved Differential-Linear Attacks with Applications to ARX Ciphers The SPEEDY Family of Block Ciphers - Engineering an Ultra Low-Latency Cipher from Gate Level for Secure Processor Architectures