New Post Quantum Bitcoin Proposal using WInternitz + Lamport auth chains

The authorization chain for a blockchain wallet involves a sophisticated mechanism using a Lamport chain, which is essentially a sequence of hashes based on a master secret. During the wallet setup process, the user's master secret undergoes multiple hash operations — specifically, 50,000 iterations — to generate a series of values. The initial value is derived by hashing the master secret to produce what can be referred to as "value 1." This output is then hashed again to produce the subsequent value, and this process repeats until it reaches "value 50,000." Out of this entire series, only the final value, value 50,000, is made public on the blockchain.

Verification of a Winternitz public key upload is achieved through this chain. To authenticate the upload, the user reveals "value 49,999" from their private series. The system then checks whether hashing value 49,999 results in value 50,000. If the resulting hash matches the published value, the authentication is confirmed. It is important to note that the Winternitz public key is designed for single-use only; once used to sign a message, it is permanently retired.

In addition to the technical details of this setup, there are comprehensive resources available that delve deeper into the security aspects and integration of this method within existing frameworks. A detailed security essay and a proposal outline for Bitcoin are accessible for further reading and understanding. These documents discuss the implementation of the described authentication mechanism within the Tapscript framework, offering insights into its operational nuances and security features. The essay can be read at block_opuslux.ar.io/essay, and the bitcoin proposal is available at block_opuslux.ar.io/bitcoin-proposal. These resources are invaluable for anyone looking to understand the intricacies of this blockchain authentication method.