HTTP

Question 1

what is encryption

Answer 1

a mechanism to convert a plaintext into a cyphertext, using an encryption key and algorithm only known at sender and receiver end - thus ensuring that the data in transit is not open to tampering by attackers

Question 2

what are types of encryption

Answer 2

symmetric and asymmetric

Question 3

what is symmetric encryption

Answer 3

where the sender and receiver uses same key to encrypt and decrypt a payload

Question 4

what is asymmetric encryption

Answer 4

where the payload is encrypted using public key and decrypted using private key; note that the keys (used for symmetric encryption) is send via asymmetric technique and thereafter the encryption/decryption happens symmetrically - this is because the symmetric is faster than asymmetric way