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What is BTC SegWit and Its Impact on Transaction Fees

ByEric Ma

Segregated Witness (SegWit) is a protocol upgrade for Bitcoin that enhances its scalability and transaction efficiency. Introduced in 2017, SegWit addresses several limitations of the original Bitcoin protocol, including transaction malleability and block size constraints. Understanding SegWit What is SegWit? SegWit stands for “Segregated Witness,” referring to the separation of signature data from transaction data….

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Understanding Bitcoin Transaction Structure: Legacy and Witness Versions

ByEric Ma

Bitcoin transactions are the backbone of the Bitcoin network, facilitating the transfer of value. Understanding their structure is essential for anyone interested in blockchain technology. This article delves into the details of both legacy and witness (SegWit) transaction structures. Basics of Bitcoin Transactions A Bitcoin transaction comprises inputs and outputs. Inputs are sources of funds,…

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A Comprehensive Guide to PGP: Technical Deep Dive

ByEric Ma

Pretty Good Privacy (PGP) is a robust encryption program that ensures privacy and authentication for data communication. Developed by Phil Zimmermann in 1991, it’s widely used for securing emails, files, and directories. This article explores the technical details of PGP, including its algorithms, key management, and detailed processes for encryption, decryption, and signing. Cryptographic Foundations…

Multisig 101

ByEthan Ainsworth

Multisig, short for “multisignature,” is a cryptographic mechanism that requires multiple signatures to authorize and execute a transaction. What is Multisig Multisig ensures that multiple parties must collaborate and approve a transaction before it can be deemed valid. It provides an additional layer of security requiring multiple parties’ signatures to spend or transfer the crypto…

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Generating ECDSA K1 and R1 keys using OpenSSL in Linux

ByDavid Wong

ECDSA keys are commonly used in various areas like blockchains. OpenSSL is a commonly used tools in Linux for handling signature/encryption/decryption. This post introduces how to generate ECDSA keys using OpenSSL in Linux. Generate keys for K1 secp256k1 elliptic curve We start with K1 (secp256k1) as the example. To generae ECDSA keys using other curves,…