What are the main differences between deterministic and probabilistic modes of operation for block ciphers, and why is this distinction important?
Wednesday, 12 June 2024
by EITCA Academy
Block ciphers are a fundamental component of modern cryptographic systems, providing a mechanism to encrypt fixed-size blocks of data. However, to securely encrypt messages of arbitrary length, block ciphers must be used in conjunction with a mode of operation. Modes of operation define how block ciphers can be applied to data sequences that exceed the
- Published in Cybersecurity, EITC/IS/CCF Classical Cryptography Fundamentals, Applications of block ciphers, Modes of operation for block ciphers, Examination review
Tagged under:
Block Ciphers, CBC, CFB, Cryptography, CTR, Cybersecurity, Data Security, ECB, Encryption, OFB
What are block ciphers and how do they differ from stream ciphers in terms of data encryption?
Wednesday, 12 June 2024
by EITCA Academy
Block ciphers and stream ciphers are fundamental concepts in the field of cryptography, specifically under the branch of symmetric key encryption. Both are employed to secure data, but they operate in fundamentally different ways, each with its own set of advantages and disadvantages. Understanding these differences is crucial for selecting the appropriate encryption method for
- Published in Cybersecurity, EITC/IS/CCF Classical Cryptography Fundamentals, Applications of block ciphers, Modes of operation for block ciphers, Examination review
Tagged under:
AES, Block Ciphers, CBC, CTR, Cybersecurity, Encryption Modes, RC4, Stream Ciphers, Symmetric Key Encryption