Can an encrytion be deterministic?
Encryption, in the realm of cybersecurity, can indeed be deterministic, although the desirability and application of such deterministic encryption depend on the specific use case and security requirements. To understand the nuances of deterministic encryption, it is essential to consider the principles of classical cryptography, particularly the modes of operation for block ciphers. Block ciphers
- Published in Cybersecurity, EITC/IS/CCF Classical Cryptography Fundamentals, Applications of block ciphers, Modes of operation for block ciphers
Can PSRNG be made by block ciphers?
The question of whether a Pseudorandom Number Generator (PSRNG or PRNG) can be constructed using block ciphers is one of significant interest within the field of cryptography. Block ciphers are fundamental cryptographic primitives that are widely used for securing data through encryption. A block cipher takes a fixed-size block of plaintext and a key as
How does the Counter (CTR) mode of operation allow for parallel encryption and decryption, and what advantages does this provide in practical applications?
The Counter (CTR) mode of operation is a widely utilized technique in the realm of block cipher encryption, known for its efficiency and versatility. Unlike other modes of operation, such as Cipher Block Chaining (CBC) or Electronic Codebook (ECB), CTR mode exhibits unique characteristics that make it particularly suitable for parallel processing during both encryption