Security • Estimated 35m

Lamport Signatures

fundamentals.lamport-signatures

Lamport signatures are one-time digital signatures built only from hash functions. They trade large keys and single-use semantics for simple security assumptions, which is why they remain a useful starting point for understanding hash-based and post-quantum signature families.

Open visual node page • Browse the concept library

Curated resources (3)

• Constructing Digital Signatures from a One Way Function (article) Leslie Lamport's original paper introducing one-time signatures built from one-way functions.
• Bitcoin Optech Newsletter #301 (article) Bitcoin-specific context for how Lamport signatures show up in quantum-resistance discussions and proposed script constructions.
• Programming Bitcoin (book) General cryptography and signing background for understanding why alternative signature constructions matter in Bitcoin.

Direct prerequisites (2)

• Digital Signatures
• Hash Functions

Direct dependents (0)

• None

Canonical site description: Interactive Bitcoin knowledge graph with prerequisites, curated resources, and structured topic pages.