Lamport signatures

Lamport signatures are a type of one-time digital signature scheme used in cryptographic applications, particularly within the realm of cryptocurrency. They are based on hash functions and provide a way to produce a unique signature for a single message, ensuring its authenticity and integrity. The key feature of Lamport signatures is their resistance to quantum attacks, which makes them a potential solution for enhancing security in crypto systems as quantum computing evolves. Each signature requires a set of secret keys, making the scheme simple but requiring careful management of keys to prevent reuse.