VERFAHREN UND SERVER ZUR ZERTIFIZIERUNG EINES ELEKTRONISCHEN DOKUMENTS

摘要

This method for certifying an electronic document is implemented by a peer device (20) in a network of peers which are configured to store a copy of a chain of blocks according to a mechanism of "blockchain" type. It comprises: - a step (E20) of authenticating a peer device (10) issuing this document; - a step (E30) of generating, for said issuing peer device (10), a one-time use public key/private key pair (KPUB, KPRIV); - a step (E40) of dispatching, to the issuing peer device (10), a message comprising said public key (KPUB) and the address of an intelligent contract (CS) in the chain of blocks, - a step (E50) of receiving a block of said chain and (E60) of detecting, in this block, an event representative of a writing into said intelligent contract (CS), of an imprint (HASH) of a document issued by said issuing device (10) and of a signature (SIG) of this imprint; - a step (E70) of verifying the validity of said signature with said private key (KPRIV); - a step (E80) of dispatching a transaction to the peer devices (P) to request them to execute a function of the intelligent contract the effect of which is to record in a block of the chain, an item of information representative of the fact that the imprint of the document has been certified by said peer device (20).