Patents by Inventor Alexandra Dmitrienko
Alexandra Dmitrienko has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20200067697Abstract: A method operates a blockchain to provide mutable transactions. The blockchain has a sequence of blocks, each block having transaction information, having a transaction, in its data record. A mutability policy is includable in the transaction information, and specifies conditions for changing its transaction.Type: ApplicationFiled: March 22, 2018Publication date: February 27, 2020Inventors: Ivan Puddu, Alexandra Dmitrienko, Ghassan Karame, Srdjan Capkun
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Patent number: 10431029Abstract: Provided is a method for access control, performed by an access control apparatus, including obtaining access authorization information that is communicated to the access control apparatus having at least one access authorization parameter and first check information; using at least the communicated access authorization parameters, the communicated first check information and a second key from a key pair, which second key is stored in the access control apparatus, to perform a first check on whether the communicated first check information has been produced by performing cryptographic operations by means of access authorization parameters corresponding to the communicated access authorization parameters using at least one first key from the key pair, and deciding whether access can be granted, based on the first check delivers a positive result and it is established that at least one predefined set of the communicated access authorization parameters respectively provides access authorization.Type: GrantFiled: January 31, 2018Date of Patent: October 1, 2019Assignee: Deutsche Post AGInventors: Christian Carstens, Christoph Dautz, Jochen Jansen, Ramin Benz, Alexandra Dmitrienko, Stanislav Bulygin, Marcus Lippert
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Publication number: 20180151013Abstract: Provided is a method for access control, performed by an access control apparatus, including obtaining access authorisation information that is communicated to the access control apparatus having at least one access authorization parameter and first check information; using at least the communicated access authorisation parameters, the communicated first check information and a second key from a key pair, which second key is stored in the access control apparatus, to perform a first check on whether the communicated first check information has been produced by performing cryptographic operations by means of access authorisation parameters corresponding to the communicated access authorisation parameters using at least one first key from the key pair, and deciding whether access can be granted, based on the first check delivers a positive result and it is established that at least one predefined set of the communicated access authorisation parameters respectively provides access authorisation.Type: ApplicationFiled: January 31, 2018Publication date: May 31, 2018Applicant: Deutsche Post AGInventors: Christian Carstens, Christoph Dautz, Jochen Jansen, Ramin Benz, Alexandra Dmitrienko, Stanislav Bulygin, Marcus Lippert
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Patent number: 9940768Abstract: Provided is a method for access control, performed by an access control apparatus, including obtaining access authorization information that is communicated to the access control apparatus having at least one access authorization parameter and first check information; using at least the communicated access authorization parameters, the communicated first check information and a second key from a key pair, which second key is stored in the access control apparatus, to perform a first check on whether the communicated first check information has been produced by performing cryptographic operations by means of access authorization parameters corresponding to the communicated access authorization parameters using at least one first key from the key pair, and deciding whether access can be granted, based on the first check delivers a positive result and it is established that at least one predefined set of the communicated access authorization parameters respectively provides access authorization.Type: GrantFiled: May 23, 2016Date of Patent: April 10, 2018Assignee: Deutsche Post AGInventors: Christian Carstens, Christoph Dautz, Jochen Jansen, Ramin Benz, Alexandra Dmitrienko, Stanislav Bulygin, Marcus Lippert
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Patent number: 9852567Abstract: Provided is a housing with at least two doors for locking respective housing openings, comprising: a locking unit, which, for each of the doors, has a respective locking-element module with at least one locking body and with a locking drive for actuating the locking body, wherein the locking drive for the locking-element modules has a common drive element, which can be moved and moves the locking body/bodies for just one of the doors into an unlocking setting and, in a second adjustment position, moves the locking bodies for all of the doors into an unlocking setting; or locking units, wherein one or more respective locking units can be activated for unlocking the associated door of the at least two doors of the housing, and respective locking units can be activated for unlocking all of the associated doors of the at least two doors of the housing.Type: GrantFiled: May 25, 2016Date of Patent: December 26, 2017Inventors: Horst Hild, Christian Carstens, Christoph Dautz, Ramin Benz, Jochen Jansen, Alexandra Dmitrienko
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Patent number: 9836906Abstract: A method having the steps of obtaining temporal information communicated to a first device; carrying out one or more of the following tests: a test to determine whether the first device is in a state following an initial operation, a battery replacement or other power outage, or a reset, a test to determine whether a deviation between temporal information of the clock and the communicated temporal information is less than or equal to a threshold which is specified, and a test to determine whether the communicated temporal information has the same date as the temporal information of the clock; and synchronizing the clock using the communicated temporal information if all of one or more defined conditions are satisfied, wherein one of the one or more conditions requires that at least one of the one or more tests carried out has a positive result.Type: GrantFiled: May 24, 2016Date of Patent: December 5, 2017Inventors: Christian Carstens, Christoph Dautz, Jochen Jansen, Ramin Benz, Alexandra Dmitrienko, Stanislav Bulygin, Marcus Lippert
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Publication number: 20160269168Abstract: A method having the steps of obtaining temporal information communicated to a first device; carrying out one or more of the following tests: a test to determine whether the first device is in a state following an initial operation, a battery replacement or other power outage, or a reset, a test to determine whether a deviation between temporal information of the clock and the communicated temporal information is less than or equal to a threshold which is specified, and a test to determine whether the communicated temporal information has the same date as the temporal information of the clock; and synchronizing the clock using the communicated temporal information if all of one or more defined conditions are satisfied, wherein one of the one or more conditions requires that at least one of the one or more tests carried out has a positive result.Type: ApplicationFiled: May 24, 2016Publication date: September 15, 2016Applicant: Deutsche Post AGInventors: Christian Carstens, Christoph Dautz, Jochen Jansen, Ramin Benz, Alexandra Dmitrienko, Stanislav Bulygin, Marcus Lippert
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Publication number: 20160267738Abstract: Provided is a method for access control, performed by an access control apparatus, including obtaining access authorisation information that is communicated to the access control apparatus having at least one access authorization parameter and first check information; using at least the communicated access authorisation parameters, the communicated first check information and a second key from a key pair, which second key is stored in the access control apparatus, to perform a first check on whether the communicated first check information has been produced by performing cryptographic operations by means of access authorisation parameters corresponding to the communicated access authorisation parameters using at least one first key from the key pair, and deciding whether access can be granted, based on the first check delivers a positive result and it is established that at least one predefined set of the communicated access authorisation parameters respectively provides access authorisation.Type: ApplicationFiled: May 23, 2016Publication date: September 15, 2016Applicant: Deutsche Post AGInventors: Christian Carstens, Christoph Dautz, Jochen Jansen, Ramin Benz, Alexandra Dmitrienko, Stanislav Bulygin, Marcus Lippert
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Publication number: 20140365781Abstract: Some embodiments relate to a computer readable medium including a program code, which is configured, when running on a programmable hardware component, to receive a delegated token from a user's device, including receiving a signal indicative of at least the delegated user identifier and a delegating security pattern from the delegated user and including providing the device of the user with a signal indicative of at least a delegated user identifier, and a delegation challenge value. It is further configured to receive, from the device of the user, a signal indicative of at least, in an encrypted form, a delegated token, a user-specific token, a delegation authentication key, a user-specific delegation challenge value, and a delegation check value. The program code is further configured to store in the device of the delegated user the delegation authentication key, the delegated token, and the user-specific token.Type: ApplicationFiled: June 7, 2013Publication date: December 11, 2014Inventors: Alexandra Dmitrienko, Ahmad-Reza Sadeghi, Christian Wachsmann