Applied Cryptography: | Protocols, Algorithms, An...

: Protocols like DSA that prove authenticity without revealing a secret key. 3. One-Way Hash Functions

Mathematical "fingerprints" that are easy to compute but impossible to reverse. Applied Cryptography: Protocols, Algorithms, an...

Modern security relies on four essential goals that the book details extensively: : Protocols like DSA that prove authenticity without

: Confirming the identities of both the sender and receiver. Applied Cryptography: Protocols, Algorithms, an...

The book categorizes cryptographic tools into three primary buckets: 1. Symmetric-Key Algorithms These use the same key for encryption and decryption.

: Encrypt data bit-by-bit or byte-by-byte (e.g., RC4). 2. Public-Key (Asymmetric) Algorithms

: Verifying that the message was not altered in transit.