Why is it necessary to use a hash function with an output size of 256 bits to achieve a security level equivalent to that of AES with a 128-bit security level?
Saturday, 15 June 2024
by EITCA Academy
The necessity of using a hash function with an output size of 256 bits to achieve a security level equivalent to that of AES with a 128-bit security level is rooted in the fundamental principles of cryptographic security, specifically the concepts of collision resistance and the birthday paradox. AES (Advanced Encryption Standard) with a 128-bit
- Published in Cybersecurity, EITC/IS/ACC Advanced Classical Cryptography, Hash Functions, SHA-1 hash function, Examination review
Tagged under:
AES-128, Birthday Paradox, Collision Resistance, Cryptographic Security, Cybersecurity, SHA-256
How does the birthday paradox relate to the complexity of finding collisions in hash functions, and what is the approximate complexity for a hash function with a 160-bit output?
Saturday, 15 June 2024
by EITCA Academy
The birthday paradox, a well-known concept in probability theory, has significant implications in the field of cybersecurity, particularly in the context of hash functions and collision resistance. To understand this relationship, it is essential to first comprehend the birthday paradox itself and then explore its application to hash functions, such as the SHA-1 hash function,
- Published in Cybersecurity, EITC/IS/ACC Advanced Classical Cryptography, Hash Functions, SHA-1 hash function, Examination review
Tagged under:
Birthday Paradox, Collision Resistance, Cryptographic Security, Cybersecurity, Probability Theory, SHA-256