Ciphers 101: From Basics Up

Algorithms for encrypting and decrypting information, used to secure data by transforming it into an unreadable format for unauthorized users.

A cipher where both the sender and receiver use the same key for encryption and decryption.

They are fast and efficient for large data, but key management is crucial; if the key is compromised, security is breached.

Advanced Encryption Standard, a widely used symmetric cipher for securing data.

Data Encryption Standard, an older symmetric cipher now considered insecure.

A cipher that uses a pair of keys; a public key for encryption and a private key for decryption.

They are more secure for key exchange but slower than symmetric ciphers.

Rivest-Shamir-Adleman, a commonly used asymmetric cipher for secure data transmission.

A cipher that replaces each letter in the plaintext with another letter.

Caesar Cipher, where each letter is shifted by a fixed number.

A cipher that rearranges the letters of the plaintext without changing the letters themselves.

Rail Fence Cipher, where the text is written in a zigzag pattern.

Data encryption, secure communication, and digital signatures.

It is essential for recognizing potential vulnerabilities in data security and serves as a foundation for advanced cryptography.

Ciphers are vital for data security, with symmetric and asymmetric types serving different purposes.