How does the concept of a multiplicative inverse apply in modular arithmetic, and why is it important for decryption in ciphers like the Affine Cipher?
Wednesday, 12 June 2024
by EITCA Academy
The concept of a multiplicative inverse in modular arithmetic is fundamental to various applications within number theory and cryptography. Modular arithmetic, often referred to as clock arithmetic, involves numbers wrapping around upon reaching a certain value, known as the modulus. In this system, an integer has a multiplicative inverse modulo if the product is congruent
- Published in Cybersecurity, EITC/IS/CCF Classical Cryptography Fundamentals, History of cryptography, Modular arithmetic and historical ciphers, Examination review
Tagged under:
Affine Cipher, Cryptography, Cybersecurity, Decryption, Modular Arithmetic, Multiplicative Inverse