Patents by Inventor Sandra Guasch Castello

Sandra Guasch Castello 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).

  • Patent number: 10686599
    Abstract: The method comprising: a) receiving, by an encoding module computer device (103), from a user (100), a message (101) including a content to be encoded; b) generating, by the encoding module (103), a generated encoding (104) of the content of the provided message (101) using encoding information (112); c) sending, by the encoding module computer device (103), the generated encoding (104) to a reception module computer device (106) and verifying, by the reception module computer device (106), that the generated encoding (104) corresponds to the encoding of the content of the message (101) by using a generated verification information (105) and public information (107), wherein the at least one code (102) having a cryptographic relationship with the public information (107) and the message (101), and the public information (107) and the message (101) having a cryptographic or a public relationship.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: June 16, 2020
    Assignee: SCYTL SECURE ELECTRONIC VOTING, SA
    Inventors: Sandra Guasch Castelló, Alex Escala Ribas, Jordi Puiggalí Allepuz
  • Publication number: 20170353310
    Abstract: The method comprising: a) receiving, by an encoding module computer device (103), from a user (100), a message (101) including a content to be encoded; b) generating, by the encoding module (103), a generated encoding (104) of the content of the provided message (101) using encoding information (112); c) sending, by the encoding module computer device (103), the generated encoding (104) to a reception module computer device (106) and verifying, by the reception module computer device (106), that the generated encoding (104) corresponds to the encoding of the content of the message (101) by using a generated verification information (105) and public information (107), wherein the at least one code (102) having a cryptographic relationship with the public information (107) and the message (101), and the public information (107) and the message (101) having a cryptographic or a public relationship.
    Type: Application
    Filed: December 29, 2015
    Publication date: December 7, 2017
    Inventors: Sandra GUASCH CASTELLÓ, Alex ESCALA RIBAS, Jordi PUIGGALÍ ALLEPUZ
  • Patent number: 9165417
    Abstract: The method includes using a voting computer to represent the user selected voting options gathered by a voting application running in the voting computer, using an element that has a machine readable format such as a barcode, recording then the element in a physical media using a printing device connected to the voting computer, so that it is suitable to be delivered by the user using a physical channel such as a postal service to the electoral officers. Once the delivered physical media is received by the intended destination (e.g., election officials), the method introduces the step of reading the element information contained in the physical media using a reading device connected to a retrieving computer. Finally, the method introduces a process for generating a physical ballot in the retrieving computer using the information delivered by the voter and a printing device.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: October 20, 2015
    Assignee: SCYTL SECURE ELECTRONIC VOTING, S.A.
    Inventors: Pere Vallès Fontanals, Pablo Sarrias Bandrés, Jordi PuiggalíAllepuz, Sandra Guasch Castelló
  • Patent number: 9077540
    Abstract: The present invention describes a verification method which allows to ensure that the decryption process has been done honestly by the entity in charge of that. The method described in this invention is characterized by basing the verification of the correctness of the decryption of a set of encrypted messages in a proof demonstrating that the result of the operation with an operator ? of blocks of encrypted messages is equal to the encryption of the result of operating with the operator ? blocks composed by the same messages, decrypted. In order to do that, a first input integrity proof is generated for each block of encrypted messages based on the operation ? of the encrypted messages, and the link with the output integrity proofs generated with the operation ? of the decrypted messages composing each block is verified.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: July 7, 2015
    Assignee: Scytl Electronic Voting, S.A.
    Inventors: Jordi Puiggalí Allepuz, Sandra Guasch Castelló, Francesc Sebé Fexias, Josep M. Miret Biosca
  • Patent number: 8713319
    Abstract: Method for verifying that an item of information relating to an issuer has been registered correctly by a receiving entity while preserving the issuer's privacy, which method includes the following steps: a) the information relating to the issuer is coded in an issuing entity and said coding is sent to the receiving entity; b) the receiving entity generates a content test on the basis of the information coded in step a), and the content test is subsequently sent to the issuing entity; and c) the issuer verifies that the content test corresponds to the information which has been coded.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: April 29, 2014
    Assignee: Scytl Secure Electronic Voting, SA
    Inventors: Jorge Puiggalí´Allepuz, Sandra Guasch Castelló
  • Publication number: 20120261470
    Abstract: The method uses a computer voting selection application suitable for execution in a remote environment by a remote user for obtaining in a local site a marked ballot from the voting selections made by the remote user. It includes generating using a remote voting computer an element representing in a machine readable format an information of the voting selections made by the remote user, recording this machine readable element in a first physical support, and sending this first physical support through a physical delivery channel to the local site where the machine readable element from the physical support is read using a reading device, and the voting selections made by the remote user are retrieved using a retrieving computer. A record representing the remote user voting selections retrieved is then obtained and processed by an electronic counting device that counts voting selections from images obtained from the obtained record.
    Type: Application
    Filed: March 15, 2012
    Publication date: October 18, 2012
    Applicant: SCYTL SECURE ELECTRONIC VOTING, S.A.
    Inventors: Pere Vallés Fontanals, Pablo Sarrias Bandres, Jordi Puiggali Allepuz, Sandra Guasch Castello
  • Publication number: 20120239932
    Abstract: Method for verifying that an item of information relating to an issuer has been registered correctly by a receiving entity while preserving the issuer's privacy, which method includes the following steps: a) the information relating to the issuer is coded in an issuing entity and said coding is sent to the receiving entity; b) the receiving entity generates a content test on the basis of the information coded in step a), and the content test is subsequently sent to the issuing entity; and c) the issuer verifies that the content test corresponds to the information which has been coded
    Type: Application
    Filed: December 1, 2010
    Publication date: September 20, 2012
    Applicant: SCYTL SECURE ELECTRONIC VOTING, S.A.
    Inventors: Jorge Puiggalí Allepuz, Sandra Guasch Castelló
  • Publication number: 20120217299
    Abstract: The method includes using a voting computer to represent the user selected voting options gathered by a voting application running in the voting computer, using an element that has a machine readable format such as a barcode, recording then the element in a physical media using a printing device connected to the voting computer, so that it is suitable to be delivered by the user using a physical channel such as a postal service to the electoral officers. Once the delivered physical media is received by the intended destination (e.g., election officials), the method introduces the step of reading the element information contained in the physical media using a reading device connected to a retrieving computer. Finally, the method introduces a process for generating a physical ballot in the retrieving computer using the information delivered by the voter and a printing device.
    Type: Application
    Filed: February 28, 2011
    Publication date: August 30, 2012
    Applicant: SCYTL SECURE ELECTRONIC VOTING, S.A.
    Inventors: Pere VALLÈS FONTANALS, Pablo Sarrias Bandrés, Jordi Puiggali Allepuz, Sandra Guasch Castelló
  • Publication number: 20120144186
    Abstract: The present invention describes a verification method which allows to ensure that the decryption process has been done honestly by the entity in charge of that. The method described in this invention is characterized by basing the verification of the correctness of the decryption of a set of encrypted messages in a proof demonstrating that the result of the operation with an operator ? of blocks of encrypted messages is equal to the encryption of the result of operating with the operator ? blocks composed by the same messages, decrypted. In order to do that, a first input integrity proof is generated for each block of encrypted messages based on the operation ? of the encrypted messages, and the link with the output integrity proofs generated with the operation ? of the decrypted messages composing each block is verified.
    Type: Application
    Filed: November 12, 2009
    Publication date: June 7, 2012
    Applicant: SCYTL SECURE ELECTRONIC VOTING, S.A.
    Inventors: Jordi Puiggalí Allepuz, Sandra Guasch Castelló, Francesc Sebé Feixas, Josep M. Miret Biosca