Hello, as the comtinuity of my latest post concerning symetric encryption. I am going to present here a resume concerning Asymmetric encryption , hashing and digital certificate concepts
Asymmetric encryption uses two keys , a public key and a private key created as a matched pair
Private Key: Kept secret and never shared
Public key: Shared with others
How Public Key encryption works
Anything encrypted with the private key can only be decrypted with the matched public key
Anything encrypted with the public key can only be decrypted with the matched private key
Hashing
It is the process of converting an input (data) into fixed size string of text
it's one-way function, meaning you can't use a hash value to determine it's input data
Hashing is used to provide data integrity because each unique input will have a unique output
we use hashing to verify that something has not been tampered with
MD% and SHA are common hash algorithms
What is a didital certificate?
A digital certificate is an electronic document used to identify an individual , a server, an organization, or some other entity , as well as to associate that entity with a public key
Digital certificates are used in public key infrastructures (PKI) encrytion. We can think of a digital certificate as our "online" digital credential that verifies our identities
Thanks.
