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1. 发明公开

US20230269092A1 DISTRIBUTED NETWORK HAVING A PLURALITY OF SUBNETS 审中-公开
公开(公告)号：US20230269092A1
公开(公告)日：2023-08-24
申请号：US18014111
申请日：2020-06-30
申请人： DFINITY STIFTUNG
发明人： Jan CAMENISCH , Manu DRIJVERS , Jens GROTH , Björn TACKMANN
IPC分类号： H04L9/32 , H04L9/08
CPC分类号： H04L9/3247 , H04L9/085
摘要： According to an embodiment of a first aspect of the invention, there is provided a distributed network comprising a plurality of subnets. Each of the plurality of subnets comprises a changeable set of nodes. The network is configured to generate for each of the plurality of subnets, by a distributed key generation protocol, an individual static verification key of a public-key signature scheme and a first set of corresponding secret key shares for a first set of nodes of the respective subnet. The network is further configured to redistribute, for each of the plurality of subnets, by a secret-redistribution protocol, the secret key shares of the respective first set of secret key shares to a second set of nodes of the respective subnet, thereby creating a second set of secret key shares corresponding to the same static verification key of the respective subnet.
Further aspects of the invention relate to a corresponding computer-implemented method, a node, a computer program product and a software architecture.

2. 发明申请

US20220377136A1 MESSAGING IN DISTRIBUTED NETWORKS 有权
公开(公告)号：US20220377136A1
公开(公告)日：2022-11-24
申请号：US17769799
申请日：2019-10-18
申请人： DFINITY STIFTUNG
发明人： Dominic WILLIAMS , Jan CAMENISCH , Allen CLEMENT , David DERLER , Mariu DRIJVERS
IPC分类号： H04L67/104 , H04L45/02
摘要： According to an embodiment of a first aspect of the invention, there is provided a distributed network comprising a plurality of subnets. Each of the plurality of subnets comprises a plurality of nodes. The network is configured to run a set of computational units and to assign each of the computational units to one of the plurality of subnets according to a subnet-assignment, thereby creating an assigned subset of the set of computational units for each of the subnets. The network is further configured to run on each node of the plurality of subnets the assigned subset of the computational units and to replicate the assigned subsets of the computational units across the respective subnets. The network is further configured to exchange unit-to-unit messages between the computational units via a messaging protocol based on the subnet-assignment.
Further aspects of the invention relate to a corresponding computer-implemented method, a node, a computer program product and a software architecture.

3. 发明公开

US20240305477A1 IDENTITY SERVICES AND AUTHENTICATION IN DISTRIBUTED NETWORKS 审中-公开
公开(公告)号：US20240305477A1
公开(公告)日：2024-09-12
申请号：US18559246
申请日：2022-05-06
申请人： DFINITY STIFTUNG
发明人： Joachim BREITNER , Jan CAMENISCH , Bjöm TACKMANN , Dominic WILLIAMS
IPC分类号： H04L9/32 , H04L9/30
CPC分类号： H04L9/3268 , H04L9/3073
摘要： According to an embodiment of an aspect of the invention, there is a computer-implemented method for authenticating users of a network. The method comprises steps of maintaining, by an identity service, user accounts under a main user identifier, wherein the user accounts support a method of authentication by the user. The method further comprises generating, by an application frontend, a session public key of a public key verification scheme and providing, by the application frontend, the session public key to the identity service. Further steps include obtaining, by the application frontend, a certification from the identity service, the certification comprising the session public key and an application user identifier. The application user identifier is derived from the main user identifier and an application frontend identifier.

4. 发明申请

US20190238318A1 SYSTEM ARCHITECTURE AND METHOD OF PROCESSING DATA THEREIN 审中-公开
公开(公告)号：US20190238318A1
公开(公告)日：2019-08-01
申请号：US16259718
申请日：2019-01-28
申请人： DFINITY Stiftung
发明人： Dominic Williams , Timo Hanke , Mahnush Movahedi
IPC分类号： H04L9/06 , H04L9/08
CPC分类号： H04L9/0637 , H04L9/0643 , H04L9/085 , H04L9/3239 , H04L9/3255 , H04L63/061 , H04L63/12 , H04L2209/38
摘要： A software architecture encoded on a non-transitory computer readable medium, where the software architecture includes a creation protocol, wherein the creation protocol is configured to create a plurality of dealing messages. The software architecture additionally includes a reading protocol, wherein the reading protocol is configured to read the dealing message to a receiver node of the selected group, wherein the receiver node is different from a dealer node whose information is contained in the corresponding dealing message. Moreover, the software architecture includes a verification protocol, wherein the verification protocol is configured to verify veracity of the corresponding dealing message, wherein the verification protocol is configured to be run by the receiver node. Further, the software architecture includes a complaint protocol, wherein the complaint protocol is configured to generate a complaint message, wherein the complaint message is signed by the receiver node.

5. 发明公开

US20240232156A1 HIERARCHICAL ACCUMULATOR STRUCTURE 审中-公开
公开(公告)号：US20240232156A1
公开(公告)日：2024-07-11
申请号：US18559234
申请日：2021-05-07
申请人： DFINITY STIFTUNG
发明人： Joachim BREITNER , Jan CAMENISCH , Andrea CERULLI , David DERLER , Roman KASHITSYN , Gregory NEVEN , Bogdan WARINSCHI
IPC分类号： G06F16/22 , G06F16/2457
CPC分类号： G06F16/2246 , G06F16/24573
摘要： Embodiments of the invention relate to a computer-implemented method for storing data. The method comprises storing the data in a hierarchical accumulator structure. The hierarchical accumulator structure comprises at least a first level and a second level. The first level comprises a first level accumulator and the second level comprises a plurality of second level accumulators. The first level accumulator encompasses a plurality of first level elements and a first level digest of the plurality of first level elements. Each of the plurality of second level accumulators encompasses a plurality of second level elements and a second level digest of the plurality of second level elements and each of the second level digests of the plurality of second level accumulators corresponds to one of the plurality of first level elements. A subset of the plurality of first level elements comprises or is associated with metadata. The metadata comprises accumulator information for the corresponding second level accumulator. The step of storing the data comprises computing the plurality of second level accumulators in dependence on the respective accumulator information of the metadata of the first level elements. Further aspects relate to a computing system and a corresponding computer program product.

6. 发明公开

US20240154821A1 RANDOMNESS IN DISTRIBUTED NETWORKS 审中-公开
公开(公告)号：US20240154821A1
公开(公告)日：2024-05-09
申请号：US18550621
申请日：2021-03-15
申请人： DFINITY STIFTUNG
发明人： Jan CAMENISCH , Manu Drijvers , Dominic WILLIAMS
IPC分类号： H04L9/32 , H04L9/00 , H04L9/08
CPC分类号： H04L9/3255 , H04L9/085 , H04L9/50
摘要： Embodiments of the invention relate to a distributed network which comprises a replicated computing cluster. The replicated computing cluster comprises a plurality of nodes, wherein each of the plurality of nodes of the replicated computing cluster is configured to run a replica and each of the replicas is configured to run one or more computational units. The replicated computing cluster is configured to perform consecutive consensus rounds to reach a consensus on a sequence of payloads and to perform consecutive processing rounds comprising a consecutive processing of the sequence of payloads in a deterministic and replicated manner. The replicated computing cluster is further configured to perform consecutive computations of a random seed for each of the payloads of the sequence of payloads and to use the random seed of a respective payload of the sequence of payloads to provide randomness to the payload. The respective computation of the random seed for a respective payload is performed only after a consensus on the respective payload has been reached.

7. 发明公开

US20230291656A1 OPERATION OF A DISTRIBUTED DETERMINISTIC NETWORK 审中-公开
公开(公告)号：US20230291656A1
公开(公告)日：2023-09-14
申请号：US18028730
申请日：2021-09-30
申请人： DFINITY STIFTUNG
发明人： Dominic WILLIAMS , Jan CAMENISCH , Timo HANKE
IPC分类号： H04L41/142 , G06F17/18
CPC分类号： H04L41/142 , G06F17/18
摘要： According to an embodiment of a first aspect of the invention, there is provided a computer-implemented method for operating a distributed network. The distributed network comprises a plurality of nodes. The network comprises one or more subnets. The method comprises steps of running a set of computational units and assigning each of the computational units to one of the plurality of subnets according to a subnet-assignment, thereby creating an assigned subset of the set of computational units for each of the subnets. The method further comprises running on each node of the plurality of subnets the assigned subset of the computational units, wherein the computational units are configured to execute computations in a deterministic manner, thereby replicating the assigned subsets of the computational units on replicas across the respective subnet. The method further comprises running a consensus component, the consensus component being configured to reach a consensus on input blocks to be processed by the replicas of a respective subnet. The method further comprises measuring, by each of the replicas of a subnet, replica-local data, reporting, by each of the replicas of a subnet, the replica-local data to the consensus component and utilizing the replica-local data for an analysis, in particular a statistical analysis, of the computations executed across the respective subnet. Further aspects of the invention relate to a corresponding distributed network, a node, a computer program product and a software architecture.

8. 发明申请

US20220383304A1 DISTRIBUTED NETWORK WITH CONSENSUS MECHANISM 有权
公开(公告)号：US20220383304A1
公开(公告)日：2022-12-01
申请号：US17770945
申请日：2020-10-22
申请人： DFINITY STIFTUNG
发明人： Jan CAMENISCH , Manu DRIJVERS , Robert LAUKO , Timo HANKE , Mahnush MOVAHEDI , Dominic WILLIAMS
IPC分类号： G06Q20/38 , G06Q20/22
摘要： An aspect of the invention relates to a distributed network comprising a plurality of network nodes. The distributed network is configured to perform a method for reaching a consensus on a sequence of values in an advantageous manner. The method performs consecutive notarization rounds. The notarization rounds comprise steps of creating value proposals to be added to the sequence, communicating the value proposals to a notarization subset of the plurality of nodes and performing a validity check of received value proposals. The notarization rounds may comprise further steps of executing individual notarization signatures on a subset of the value proposals that are valid. The notarization rounds may further comprise performing a consistency check of the value proposals and executing consistency signatures on a subset of the value proposals. The method may further comprise a finality procedure to finalize a value proposal once a predefined finality rule set has been fulfilled.

9. 发明申请

US20220158842A1 DISTRIBUTED NETWORK WITH BLINDED IDENTITIES 有权
公开(公告)号：US20220158842A1
公开(公告)日：2022-05-19
申请号：US17441161
申请日：2019-03-20
申请人： DFINITY STIFTUNG
发明人： Jan CAMENISCH , Domonic WILLIAMS , Andrea CERULLI , David DERLER , Manu DRIJVERS , Timo Tobias HANKE , Gregory NEVEN
IPC分类号： H04L9/32 , H04L9/08
摘要： According to an embodiment of a first aspect of the invention, there is a distributed network comprising a plurality of network nodes. Each of the plurality of network nodes is linked to a first node identity of a plurality of first node identities. Each of the plurality of first node identities comprises a first verification key of a public-key signature scheme. The distributed network is configured to perform a key shuffling step adapted to perform an unlinkable one-to-one mapping between the plurality of first node identities and a plurality of second node identities. Each of the plurality of second node identities comprises a second verification key of a public-key signature scheme. The distributed network is configured to perform a consensus protocol with a subset of the plurality of second node identities. Further aspects of the invention relate to a corresponding computer-implemented method, a network node and a computer program product.

10. 发明申请

WO2022069035A1 REDISTRIBUTION OF SECRET SHARINGS 审中-公开
公开(公告)号：WO2022069035A1
公开(公告)日：2022-04-07
申请号：PCT/EP2020/077414
申请日：2020-09-30
申请人： DFINITY STIFTUNG
发明人： CAMENISCH, Jan , CERULLI, Andrea , DRIJVERS, Manu , GROTH, Jens
IPC分类号： H04L9/08 , H04L9/32
摘要： Method for redistribution of a (n,t)-secret sharing of a secret s from a set of dealers to a set of receivers. The method comprises performing by each of at least the threshold number t of dealers, - creating a (n',t')-secret sharing of its respective secret share, - creating a set of ciphertexts comprising for each receiver one encrypted sub-share of the n1 secret sub-shares of its respective secret share and being encrypted with respect to a public encryption key of the respective receiver. The public encryption key is a key of a public-key encryption scheme. - generating a non-interactive zero-knowledge proof that the set of ciphertexts jointly contain a redistribution of its secret share - broadcasting a dealing to the set of receivers, the dealing comprising the set of ciphertexts for the set of receivers and the corresponding non-interactive zero-knowledge proof.

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