SSL Complete Guide 2021: HTTP to HTTPS - Signing Data Using Asymmetric Keys

The video tutorial explains the use of asymmetric keys for data encryption, decryption, and signing. It details how data can be securely sent and verified using public and private keys, ensuring data integrity and authenticity. The process of data signing involves creating a hash with a private key, which can be verified by others using the corresponding public key. This ensures that the data has not been altered and confirms the sender's identity. The tutorial also introduces the RSA protocol, highlighting its role in secure certificate communication.

What is the primary purpose of using a public key in asymmetric encryption?

• To decrypt data sent by the owner

• To encrypt data for the owner

• To sign data for the owner

• To verify the owner's identity

In the context of data signing, what is the role of a private key?

• To decrypt the data

• To verify the data's integrity

• To create a hash of the data

• To encrypt the data itself

How can a recipient be sure that data was sent by the owner of a private key?

• By checking the data's length

• By using a symmetric key

• By verifying the encrypted hash with the public key

• By comparing the data with a known sample

What is one of the benefits of signing data with asymmetric keys?

• It speeds up data transmission

• It ensures the data is encrypted

• It reduces the data size

• It confirms the data was not altered during transfer

What protocol is introduced for certificate communication using asymmetric keys?

• SSL

• TLS

• AES

• RSA