In this article, you will learn what are blockchain public and private keys. Cryptography is the core of cryptocurrency, and without it, none of the transactions will be secured, nor the integrity of any information is upheld. While both the public and private keys strive to secure a transaction, they are distinctively different, corresponding with their purposes.
What are Blockchain Public and Private Keys?
When comparing them side-by-side, a public key is used to verify a transaction after a transaction has been requested. Commonly a public key is also translated as an 'address' to receive cryptocurrencies. Whereas a private key that is associated with a cryptocurrency account focuses on authorizing the transaction.
A public and private key is basically used to decrypt the messages encrypted in a complex mathematical algorithm within the cryptography methodology. While a public key can be widely distributed, a private key used in the crypto context is meant to be kept discretely as a pass safeguard your digital assets.
Usually, these private keys vary depending on the different types of cryptocurrency, although almost all of them use 256-bit encryption. That includes BTC, ETH, LTC, and more. For example, a Bitcoin private key is formatted with the values:
0x01 and 0xFFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFE BAAE DCE6 AF48 A03B BFD2 5E8C D036 4140. representing nearly the entire range of 2256-1 values.
An example of a public key is as follows:
3048 0241 00C9 18FA CF8D EB2D EFD5 FD37 89B9 E069 EA97 FC20 5E35 F577 EE31 C4FB C6E4 4811 7D86 BC8F BAFA 362F 922B F01B 2F40 C744 2654 C0DD 2881 D673 CA2B 4003 C266 E2CD CB02 0301 0001
The key is a sequence of random symbols available to any person (public key) or known only by its owner (private key). The public key is used for encryption, but it is only a private key that can help one to decrypt the information . That said, it is possible to find out a public key if you know a private key, but it is relatively impossible to find out a private key with a public key.
Uses of Public and Private Keys in Cryptocurrency Wallets
Cryptocurrency wallets are excellent examples of public and private keys utilization. When considering wallets, a public key is a user's address, and it gives other network participants a point of access to send tokens to this wallet. But if a user wants to send crypto One to another, they'll need their private keys to confirm the transaction.
Just like logging into your email, you'll need a password. The email address is a fixed point for other email network participants to send messages. While the password is required to get full access to the email account.
However, for the longest time, symmetric encryption was the primary encryption type where every message was encrypted and decrypted with the same code (key). Still, it raises serious doubts about its security. Thus, asymmetric encryption is designed to meet these with a pair of keys (one public and one private) used separately to encrypt and decrypt messages.
Unlike symmetric encryption with one key to encrypt and decrypt information, public and private keys must “match” the encrypted data. They are generated and used simultaneously.
Bottom Line
As we move towards the digitized sphere, data storage and security have increasingly become important. Public key encryption helps users maintain reasonable security practices as nobody knows the private key paired with the open public key.
