Introduction The blockchain is a digital ledger used by cryptocurrencies like Bitcoin to record transactions. As the name suggests, a blockchain is a chain of digital blocks. Each block is linked to the next block through cryptographic hashes, which are unique and tamper-proof identifiers. A blockchain network exists when a […]

Introduction Cryptography is the science of coding and decoding information. In today’s world, cryptography has many applications, which include (but are not limited to) ATM cards, computer passwords, encryption key management and secure internet communications. Cryptography is the art of writing and solving codes. Cryptography is the art and science […]

Introduction Blockchain is a digital ledger of transactions. It’s the technology that underlies cryptocurrencies like Bitcoin, Ethereum and Litecoin. The system was created to make it possible for people to transfer money without relying on banks or other financial intermediaries, but it can also be used in many other ways: […]