Are the numbers 7 and 12 equivalent in mod 5 operation?
To determine whether the numbers 7 and 12 are equivalent in mod 5 operation, we must utilize the principles of modular arithmetic, a fundamental concept in number theory and cryptography. Modular arithmetic involves integers wrapping around upon reaching a certain value, known as the modulus. In this context, the modulus is 5. The notation "a
Are addition and subtraction operations different in modulo 2 arithmetic?
In the realm of modular arithmetic, particularly when considering modulo 2 arithmetic, the operations of addition and subtraction exhibit unique characteristics that distinguish them from their counterparts in standard arithmetic. This distinction has profound implications in various fields, including cryptography, where the simplicity and properties of modular arithmetic are leveraged to create secure communication systems.
- Published in Cybersecurity, EITC/IS/CCF Classical Cryptography Fundamentals, History of cryptography, Modular arithmetic and historical ciphers

