π–π‘πšπ­ 𝐈𝐬 π„π§πœπ«π²π©π­π’π¨π§? 𝐀 𝐁𝐫𝐒𝐞𝐟 𝐎𝐯𝐞𝐫𝐯𝐒𝐞𝐰

Summary

Encryption refers to technical processes of converting plaintext into ciphertext and back again that secure data and systems, making it difficult for unauthorized parties to gain access to encrypted information. This process generally falls into two categories: symmetric or asymmetric encryption. Symmetric key systems use the same key for encrypting and decrypting data and asymmetric systems use public and private key pairs for encrypting and decrypting data.

Plaintext and Ciphertext

Plaintext refers to any information, such as text on websites, programs, or music files, that can be easily read or deciphered by humans or machines. Sensitive information such as account passwords, which might be visible β€” and ripe for stealing β€” in plaintext if processed over the internet needs an added layer of security to remain confidential. This is where encryption comes in.

Encryption Algorithms and Keys

This process of encryption and decryption, from plaintext to ciphertext and back to plaintext, generally involves the use of encryption algorithms and keys. Encryption algorithms are mathematical formulae that can scramble plaintext (the input) into ciphertext (the output). The key, generated by the algorithm, works to transform the resulting ciphertext back to its original readable form (and vice versa). The security of any system relies on a strong encryption algorithm that can’t be easily hacked, as well as keeping the key hidden from potential intruders. A key is a string of data or bits β€” or more simply, a string of numbers or letters β€” that is inputted into the encryption algorithm. Keys are generally randomly generated, and unlike a password, are not intended to be memorized by a user to input.

Asymmetric Encryption and Cryptocurrencies

Cryptocurrencies stay secure by relying on modern asymmetric encryption methods and the secure nature of transactions on a blockchain. Cryptocurrency holders use private keys to verify that they are owners of their cryptocurrency. Transactions are secured with hashing and blockchain encryption techniques.

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