Tag Archives: Blockchain

Post-Quantum Cryptography (PQC) – Future proofing for quantum-safe encryption !

Everything is hackable! During the RSA Conference 2017 Crypto panel, Prof. Shamir (the letter “S” in the RSA) said, “I think there is a higher chance that RSA could be broken by a mathematical attack.” and he also wondered to note “Quantum Computers” will be a reality soon! That said, the evolution of practical quantum computers are not far away, according… Read more »

Unpacking HyperLedger Fabric 1.0 – Under the hood of a Permissioned Blockchain

It’s been a while I had been following the “HyperLedger” project initiatives under Linux foundation –  it is growing faster than I thought (Not sure, when Oracle will join HyperLedger..probably they are annoyed by HyperLedger use of RockDB, CouchDB)! I attempted to test drive HyperLedger 0.6 before — it didn’t get me anywhere with too many dependencies.  That said, a couple… Read more »

Deciphering Blockchain – Role of Cryptographic Hashes and Digital signatures

In a Blockchain infrastructure, trust is built using cryptographic hash functions and Public-key cryptography using digital signature mechanisms.  If we unpack the building blocks of a typical blockchain infrastructure – It relies on a multi-party peer-to-peer transactional network backbone without relying on a central authority. On the blockchain network, the peers create transactions, collaborate on transactions, validate and verify the transaction… Read more »

Anatomy of the Blockchain and understanding “Proof-of-Work”

We keep hearing the hype about Blockchain particularly its guarantee for securely providing tamper-resistant immutable record keeping. What it basically means that Blockchain records every transaction on the network, whether it is a single transaction of a payment or multi-step transaction of a workflow — Each transaction is represented as a block. Typically, the resulting blockchain ledger will be represented… Read more »

Blockchain – Cutting through the hype !

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First, I am not a BitCoin investor or miner (perhaps in the future)…but it’s been a while I had been following BitCoin’s underlying technology called “Blockchain”!  In fact, Bitcoins value hangs on the trust provided by Blockchain technology! Quite fascinating – Blockchain facilitates a way where multiple parties who remain anonymous can trust and collaborate each other using a consensus-based protocol… Read more »