All about Cryptography

Contents 1 Introduction 2 2 RIJNDAEL algorithm 2 3 Cryptographic history 4 4 Trends and applications of modern cryptography 5 1 Trend 5 1.1 Elliptic curve cryptography 5 1.2 Quantum cryptography 6 2 Application 6 5 Cryptographic algorithm type 6 1 Key cipher 6 2 Public key Encryption 7 3 Hash function 8 7 Bibliography 9 1 Introduction The basic task of encryption is to enable users to securely communicate via unsecure channels and ensure the privacy and reliability of their transmission is.

The cipher is the same name as the cryptographic currency and is basic. All encryption currencies use public / private key encryption as the basis for identity and authentication. I recommend learning RSA (it is easy to learn and does not require a very powerful mathematical background), and see ECDSA. Elliptic curve encryption requires more abstract mathematics - understanding all the details is not important, but be aware that this is an encryption technique used in most cryptographic currencies including bitcoin Please give me.

What is the math behind elliptic curve encryption? Author: Hans Knutson. "Public keys, secret keys and digital signatures form the basic building blocks of public key cryptography, no matter what mathematical rationale you implement public key cryptosystems, In order to meet at least the following requirements, the private key of the public key is computationally impossible (2) It corresponds to the public key without revealing useful information about the secret key within the process You can prove that you know the secret key, how to organize the message, so the certificate forms the digital signature of the message. "

Public key cryptography Alice has a public key and a secret key. She can create a digital signature using her private key and Bob can use Alice 's public key to verify that the signature really came from Alice' s private key. When creating an Ethereum or Bitcoin wallet, the long '0xdf ... 5f' address becomes the public key and the private key is saved somewhere. The Bitcoin Wallet service like Coinbase will save the private key for your wallet, or you can save it yourself. Backing up your key is a good thing, as you lose the secret key of the real money fund, you will lose all the money forever. To hurry hard is painful! I did it.