Question

What are different cryptography algorithms?

Answer 1

A cipher, or cryptographic algorithm, is the means of altering data from a readable form (also known as plaintext) to a protected form (also known as ciphertext), and back to the readable form. Changing plaintext to ciphertext is known as encryption, whereas changing ciphertext to plaintext is known as decryption.

Types of Cryptographic Functions. There are three main types of cryptographic functions that are the building blocks of security: Symmetric cryptography - Alice and Bob know the same key and use it for encryption and decryption.

Answer 2

The three cryptography algorithms are :-

1) Secret Key Cryptography (SKC): Uses a single key for both encryption and decryption; also called symmetric encryption. Primarily used for privacy and confidentiality.

2) Public Key Cryptography (PKC): Uses one key for encryption and another for decryption; also called asymmetric encryption. Primarily used for authentication, non-repudiation, and key exchange.

3) Hash Functions: Uses a mathematical transformation to irreversibly "encrypt" information, providing a digital fingerprint. Primarily used for message integrity.

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