Why are larger key sizes (e.g., 1024 to 2048 bits) necessary for the security of the Diffie-Hellman cryptosystem, particularly in the context of index calculus attacks?
Friday, 14 June 2024
by EITCA Academy
The necessity for larger key sizes in the Diffie-Hellman cryptosystem, particularly in the context of index calculus attacks, can be understood through a detailed examination of the underlying mathematical principles and the evolving landscape of cryptographic security. The Diffie-Hellman key exchange protocol is fundamentally based on the difficulty of solving the discrete logarithm problem (DLP)
- Published in Cybersecurity, EITC/IS/ACC Advanced Classical Cryptography, Diffie-Hellman cryptosystem, Generalized Discrete Log Problem and the security of Diffie-Hellman, Examination review
Tagged under:
Cryptography, Cybersecurity, Diffie-Hellman, DISCRETE LOGARITHM, Index Calculus, Key Size
How many public parametres Diffie-Hellman protocol has?
Friday, 13 October 2023
by Silvio Pereira
The Diffie-Hellman protocol is a fundamental cryptographic algorithm used for secure key exchange between two parties over an insecure channel. It was introduced by Whitfield Diffie and Martin Hellman in 1976 and is based on the concept of the discrete logarithm problem in number theory. The protocol allows two parties, often referred to as Alice
- Published in Cybersecurity, EITC/IS/ACC Advanced Classical Cryptography, Diffie-Hellman cryptosystem, Diffie-Hellman Key Exchange and the Discrete Log Problem
Tagged under:
Cryptography, Cybersecurity, DISCRETE LOGARITHM, KEY EXCHANGE, Number Theory, Prime Number