bitcoinmagazine.com

[ad_1]

The Lightning HTTP 402 Protocol, also known as L402, is a method for charging services and authenticating users in a distributed network. It combines two powerful tools – Macaroon, and of course, the Lightning Network.

Macaroons are special tokens used for authentication. They contain permissions and can be verified using a root key. Documentation Turns out that this is important for systems where we want to avoid or cannot seek the validity of each token.

Lightning is a Layer 2 solution for making fast and secure bitcoin payments. L402 leverages the capabilities of Macaroons and Lightning to create a mechanism that allows users to authenticate and make payments without the need for a central database.

In L402, the macaroon contains the payment hash. To be valid, the user must present a macaroon and a preimage corresponding to the payment hash in the macaroon. Preimage is obtained by paying a Lightning Network invoice.

A newly introduced software is called hole Acts as an intermediary between the user and the API of the service. It forwards requests with valid L402s to the relevant API endpoint and can issue new Macaroon and Lightning invoices to new users.

L402 allows metered APIs, where services can charge for their usage without requiring a login or password. Macaroon, along with preimage, guarantees that the payer has paid.

The L402 specification includes various features such as the version of Macaroon, a unique user identifier, and a payment hash that links Macaroons to Lightning invoices. Macaroons may also include caveats that define access to specific services, service capabilities, and service constraints.

When verifying L402, the server uses the root key to verify that the macaroon was issued by the appropriate authority and that each alert was properly modified. The preimage is also verified against the payment hash to ensure that all outstanding invoices have been paid.

In essence, L402 is a protocol that connects the Macaroon and Lightning Networks to enable charging for services and to authenticate users. It allows for secure payments and authentication without relying on a central database. Aperture is software that helps handle the process and allows services to issue Macaroon and Lightning Network invoices.