| Patent application number | Description | Published |
|---|
| 20110150212 | COMPUTER IMPLEMENTED METHOD FOR GENERATING A SET OF IDENTIFIERS FROM A PRIVATE KEY, COMPUTER IMPLEMENTED METHOD AND COMPUTING DEVICE - The invention relates to a computer implemented method for generating a set of identifiers from a private key, the method comprising the steps of: calculating a set of public keys, wherein the private key and each public key of the set of public keys form an asymmetric cryptographic key pair; and outputting the identifiers comprising the public keys. | 06-23-2011 |
| 20110154025 | COMPUTER IMPLEMENTED METHOD FOR AUTHENTICATING A USER - The invention relates to a computer implemented method for performing a user authentication, wherein an asymmetric cryptographic key pair is associated with the user, said key pair comprising a public key and a private key, wherein the method comprises selecting the user to be authenticated using a pseudonym of said user, wherein said pseudonym comprises the public key of the user, the method further comprising performing a cryptographic authentication of the user using the asymmetric cryptographic key pair. | 06-23-2011 |
| 20110154044 | COMPUTER IMPLEMENTED METHOD FOR SENDING A MESSAGE TO A RECIPIENT USER, RECEIVING A MESSAGE BY A RECIPIENT USER, A COMPUTER READABLE STORAGE MEDIUM AND A COMPUTER SYSTEM - The invention relates to a computer implemented method for sending a message to a recipient user, wherein a recipient asymmetric cryptographic key pair is associated with the recipient user, said key pair comprising a public recipient key and a private recipient key, the method comprising sending the message to said recipient user with the recipient address to which the message is sent comprising the public recipient key. | 06-23-2011 |
| 20110154054 | COMPUTER IMPLEMENTED METHOD FOR GENERATING A PSEUDONYM, COMPUTER READABLE STORAGE MEDIUM AND COMPUTER SYSTEM - The invention relates to a computer implemented method for generating a pseudonym for a user comprising entering a user-selected secret, storing the user-selected secret in memory, computing a private key by applying an embedding and randomizing function onto the secret, storing the private key in the memory, computing a public key using the private key, the public key and the private key forming an asymmetric cryptographic key, erasing the secret and the private key from the memory, and outputting the public key for providing the pseudonym | 06-23-2011 |
| 20110154055 | COMPUTER READABLE STORAGE MEDIUM FOR GENERATING A PSEUDONYM, COMPUTER IMPLEMENTED METHOD AND COMPUTING DEVICE - The invention relates to a method of generating a pseudonym, the method including accessing an input value and calculating a pseudonym by applying a cryptographic one-way function to the input value, where the cryptographic one-way function is an injective function. In alternative embodiments, the cryptographic one-way function is an embedding and/or randomizing function | 06-23-2011 |
| 20110154056 | COMPUTER READABLE STORAGE MEDIUM FOR GENERATING AN ACCESS KEY, COMPUTER IMPLEMENTED METHOD AND COMPUTING DEVICE - A computer readable storage medium having stored therein instructions, which when executed by a computing device cause the computing device to perform a method of generating an access key, the method comprising the steps of:
| 06-23-2011 |
| 20110173455 | DATABASE SYSTEM, COMPUTER SYSTEM, AND COMPUTER-READABLE STORAGE MEDIUM FOR DECRYPTING A DATA RECORD - A database system comprising: a memory containing multiple data records, wherein each of the data records has a data record asymmetric key pair for cryptographic encryption and decryption, wherein each data record asymmetric key pair comprises a data record public key and a data record private key, wherein the data contained in each of the multiple data records is encrypted by the data record public key, wherein the data record private key of each data record asymmetric key pair is encrypted with the public key of another asymmetric key pair; a set of user accounts, wherein each of the user accounts has a user asymmetric key pair for encryption and decryption, wherein each user asymmetric key pair has a user public key and a user private key; wherein data is added to a data record by encrypting it with the data record public key; wherein access to the data record is granted to a user account by encrypting the data record private key with the public key of an asymmetric cryptographic key pair whose encrypted private key is accessible from the user account via a sequence of successive decryptions of encrypted private keys; and wherein the data record private key allows decryption of the data record. | 07-14-2011 |
| 20110179286 | COMPUTER IMPLEMENTED METHOD FOR PERFORMING CLOUD COMPUTING ON DATA BEING STORED PSEUDONYMOUSLY IN A DATABASE - The invention relates to a computer implemented method for performing cloud computing on data of a first user employing cloud components, the cloud components comprising a first database and a data processing component, wherein an asymmetric cryptographic key pair is associated with the first user, said asymmetric cryptographic key pair comprising a public key and a private key, the data being stored pseudonymously non-encrypted in the first database with the data being assigned to an identifier, wherein the identifier comprises the public key, the method comprising retrieving the data from the first database by the data processing component, wherein retrieving the data from the first database comprises receiving the identifier and retrieving the data assigned to the identifier from the first database, wherein the method further comprises processing the retrieved data by the data processing component and providing a result of the analysis. | 07-21-2011 |
