You may have used a code to communicate secretly with your crush as a kid or seen cryptic symbols in movies. Codes are used all over the world to keep secrets from unauthorized eyes — like your enemy spies, competitors trying to steal your trade secrets or even government agencies trying to protect back-room deals that may be harmful to the public.
There are two kinds of crypto codes: ciphers and codes. Ciphers use substitution of a plain text for another to make it unreadable, such as replacing every letter in the message with the next one after it in the alphabet. For example, a message “kill the king at midnight” could be encoded as “OAKEN 7890 SPINDRIFT.” Ciphers require a reference to decode or encipher messages, known as a code book, and they can be broken if you have a code book.
The Art of Deciphering Crypto Codes: A Beginner’s Guide to Cryptography in Blockchain
Codes are a bit more complicated than ciphers. They obfuscate text with meaning rather than just substituting the code groups. For example, the Kamasutra, a Hindu text dating to the fourth century b.c., recommends monoalphabetic substitution ciphering (replacing each plaintext letter with a different letter of the alphabet) as one of 64 arts for an ideally educated woman. Codes also need a code book and can be broken if an enemy knows the code.
Cryptocurrency requires advanced coding to verify transactions and provide security. This is why many people seek cryptocurrency training courses online. But coding for cryptocurrencies is very different from traditional coding because of the blockchain technology they are built on.