3 papers
cs.CR2021
On Entropy and Bit Patterns of Ring Oscillator Jitter
Markku-Juhani O. Saarinen
Thermal jitter (phase noise) from a free-running ring oscillator is a common, easily implementable physical randomness source in True Random Number Generators (TRNGs). We show how…
cs.CR2020
A Lightweight ISA Extension for AES and SM4
Markku-Juhani O. Saarinen
We describe a lightweight RISC-V ISA extension for AES and SM4 block ciphers. Sixteen instructions (and a subkey load) is required to implement an AES round with the extension, ins…
cs.CR2019
Mobile Energy Requirements of the Upcoming NIST Post-Quantum Cryptography Standards
Markku-Juhani O. Saarinen
Standardization of Post-Quantum Cryptography (PQC) was started by NIST in 2016 and has proceeded to its second elimination round. The upcoming standards are intended to replace (or…