This study investigates using the GOST encryption algorithm to enhance security within QRCode Indonesia Standard (QRIS). Given ubiquity of QR Codes in digital transactions, particularly for Micro, Small, and Medium Enterprises (MSMEs), robust measures are paramount. We evaluated algorithm’s ability secure data Code, converting code into an encrypted carrier decipherable only via a specially-equ...

The past feds months ha:;e s4e1.I :~apiij.b i5XWiXC3 ciCCe;2tar.Ce Of the concept of recertification 3s a c:esira.i3le approaah to demonstration --T---of physicians accoczbxity. ?Gost of tr;e twenty-two specialty boards have expressed formal approval of voluntary, periodic reexamination for the purpose of assurirlg clinical competence. One board requires periodic rece.rtificatior:. Four boards ...

In this paper we describe a novel attack method on product ciphers, the reflection attack. The attack method exploits certain similarities among round functions which have not been utilized in previous self similarity attacks. We give practical examples illustrating the power of the reflection attack on several ciphers such as GOST, DEAL and some variants of DES and Magenta. Many interesting an...

Kuznyechik is an SPN block cipher that has been chosen recently to be standardized by the Russian federation as a new GOST cipher. In this paper, we present two fault analysis attacks on two different settings of the cipher. The first attack is a differential fault attack which employs the random byte fault model, where the attacker is assumed to be able to fault a random byte in rounds seven a...