Blockchain proof of authority

Powers of Authority

A proof-of-authority algorithm, 'reputation' system or simply PoA system (from Proof-Of-Authority system) is an algorithm used in blockchain that allows to validate transactions quickly, through a distributed consensus mechanism based on the identity and reputation of the nodes chosen as block validators, in such a way that to perform their functions the nodes do not have to bet, but it is necessary to perform a verification of their identity and reliability.

This consensus algorithm has a main difference with respect to the PoW and PoS mechanisms, this is that it takes advantage of the real identity revealed voluntarily by each of the validators, as an insurance of trust and a sign of transparency so that the rest of the nodes trust it and thus it can be in charge of the generation of the new blocks. By associating a reputation with the real identity, validators are incentivized to maintain the transaction process, since any act that violates the reliability and transparency of the network falls directly on that person or institution and can cause their reputation to be ruined everywhere.

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The goal is to streamline transactions and improve security in property registration, using blockchain technology and smart contracts to minimize the risks associated with the manual handling and transfer of documents or contracts.

Some of the world's leading banks, central banks, governments, universities and IT companies are investigating the potential applications of blockchain technology as a technology of the future in various fields.

Currently, when carrying out a real estate transaction, the user (or other authorized person) has to personally sign several physical documents, such as a contract, a sales invoice or the granting of credit. Subsequently, these documents are sent by traditional mail or by e-mail if scanned copies of the documents are used. However, if the parties involved in the transaction have digital signatures, contracts and other documents can be completely digital, which simplifies the process and remains secure.

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Blockchain is a distributed information storage technique, in which there is no centralized management of information. Such a technique makes use of consensus policies to validate the information included and integrity detection policies of the originally recorded data.

Distributed storage techniques have evolved to enable other types of services, supported by increased connectivity and computing power. Thanks to these advances, peer-to-peer or P2P (Peer to Peer) information exchange techniques were developed. In these, all network nodes are hierarchically equal nodes that store and share information in a distributed manner without the need for centralized management (or intermediary). An example of this model was eMule, in which participants could participate freely and dynamically without the need for intermediaries. In this model there were also content generators or nodes that only stored information. This configuration guarantees the availability of information in an open and non-permissioned mode that anyone can join. However, it does not implement a policy to validate the information to be stored, nor mechanisms to determine whether such information has been altered in one or several nodes, i.e., to determine the integrity of the information.

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La presente solicitud reivindica la prioridad con respecto a la solicitud provisional US 60/523.398 presentada el 19 de noviembre de 2003.The present application claims priority over provisional application US 60 / 523,398 filed on November 19, 2003.

Esta solicitud se refiere al campo de la seguridad y la validación de datos, y más particularmente a un método para proporcionar información de validación de rutas para un sistema de acuerdo con el preámbulo de la reivindicación 1.

Resulta util poder determinar el estado de un certificado digital, incluyendo la determinacion de si el certificado se emite de manera valida y/o si el certificado ha sido revocado antes de su expiracion. Existen varias técnicas para determinar el estado de un certificado digital individual. Por ejemplo, las patentes US n° 5.666.416 y 5.717.758 describen técnicas para proporcionar el estado de un certificado individual. Se conocen también otras técnicas para diseminar y verificar el estado de un certificado, incluyendo Listas de Revocación de Certificados (CRL's), las cuales son listas firmadas digitalmente de certificados revocados.Es útil poder determinar el estado de un certificado digital, incluyendo la determinación de si el certificado fue emitido de manera válida y/o si el certificado ha sido revocado antes de su expiración. Existen varias técnicas para determinar el estado de un certificado digital individual. Por ejemplo, las patentes estadounidenses nº 5.666.416 y 5.717.758 describen técnicas para proporcionar el estado de un certificado individual. También se conocen otras técnicas para difundir y verificar el estado de un certificado, como las listas de revocación de certificados (CRL), que son listas de certificados revocados firmadas digitalmente.