pull down to refresh
Thanks. It seems cryptography isn't that difficult to learn. I was worried for nothing.
Is there a difference when we say "Cryptography" and "Public Key Cryptography"?
It seems cryptography isn't that difficult to learn.
Well... it's a lot of math ;)
Is there a difference when we say "Cryptography" and "Public Key Cryptography"?
"cryptography" is an umbrella term for "symmetric" and "asymmetric" cryptography.
Symmetric cryptography is used for encryption/decryption and there is only one key. (The key for encrypting a message is also the key for decrypting it)
Asymmetric cryptography (public key cryptography) uses a pair of keys. (private key and public key)
When encrypting a message with the public key, only the one who has the private key can decrypt the message. This is useful for secure communication.
When signing a message with the private key, everyone can prove with the public key, that the message must have been signed by the owner of the private key.
Well... it's a lot of math.
Lol, If I ever paid attention in maths class ;)
I based my response on your definition and his #873605
I feel grateful to you putting the basics of cryptography in so simple language. I'm starting to feel like an advanced Bitcoiner.
Public key cryptography can be split into 3 categories:
The cryptography that Bitcoin uses are digital signatures. These are used to proof that you actually have the private key to a transaction output.