Cryptocurrency basis

Cryptography (not cryptology, which contains cryptography and cryptanalysis) is a study of encryption from a mathematical point of view. It is also used for secret communications, allowing the world to see an encrypted message in case someone is listening in, and not letting them know the real word. Only the intended recipient can read it. As you mentioned, you can also “register” things using a similar scheme, but where “pre-decrypt” (my term) is something, and other people binding your crypto key can show that you’ve signed something.

So cryptography is almost exclusively used in security areas. You can only restrict those authorized to access secret data. This is useful for sending messages, ensuring that only paying customers can install the software and be held accountable (at least trying to prevent people from “joking” with their phone).

You can also provide some security in other ways. Some “darknets”, notably Freenet, do not censor information. Each user stores the data on his computer, so its deletion will not delete data from the network. After downloading the report, it can be almost impossible to delete it. In the case of illegal content, you can place it on a computer without knowledge. However, since it is encrypted, the judge should not be guilty of keeping the data on the computer because not only is it impossible to prove that your computer hosts illegal content, but even if you can. Do not access unless you intentionally try to decrypt it through other illicit routes.

Along with Bitcoin, you can also find crypto apps at:

message bit

Tahoe-LAFS (and other encrypted file storage systems)

PGP/GPG (plain text encryption so you can send emails to people without other people reading the message)

Finally, I will say that unique passwords may be a growing trend. I have a keychain that, to connect to the program, every time I need a new password. Only 64,000 random passwords will be verified as “I am”, so the attacker will not be able to access the passwords, but will not be able to steal the password that he uses and reuses. Once applied, it can no longer be used.

Uses of cryptography

The crux of what you have learned so far is that cryptography is the art of storing and writing information in such a way that it is only revealed to those who need to see it. Hide from everyone else. Before the information age, cryptography was only used to guarantee the secrecy of information. Encryption has been used to ensure the confidentiality of communications from spies, military leaders, and diplomats. Egyptian hieroglyphs, scythe passwords used by the Spanish Spartans, plaster, and various physical auxiliary devices were used throughout history up to modern times. These devices underwent other changes when computers and electronic devices appeared, which contributed significantly to cryptanalysis.

http://counos.io