What cryptography technique can encrypt small amounts of data and applies it to digital signatures?
Correct Answer: B
Asymmetric encryption, also known as public-key cryptography, uses a pair of keys-a public key and a private key-to encrypt and decrypt data. This method is widely used for securing small amounts of data, such as digital signatures. In asymmetric encryption:
* The public key is used to encrypt the data.
* The private key is used to decrypt the data.
Digital signatures utilize asymmetric encryption to ensure the integrity and authenticity of a message. When a sender signs a document with their private key, the recipient can verify the signature using the sender's public key, confirming that the document was indeed signed by the sender and has not been altered.
References:
* EC-Council Certified Network Defender (CND) Study Guide
* Cryptography and Network Security Principles