Ford, Bryan; Gasser, Linus; Kokoris Kogias, LefterisIST Austria; Janovic, Philipp
The present invention concerns a computer-implemented method for secure data exchange between a sender (A) and a recipient (B), wherein the method is performed by the sender (A) and comprises encrypting data using a symmetric key k, creating a write transaction T W , wherein the write transaction T W comprises information usable to derive the symmetric key k and an access policy identifying the recipient (B) as being allowed to decrypt the encrypted data, providing the recipient (B) access to the encrypted data, and sending the write transaction T W to a first group of servers (AC) for being stored in a blockchain data structure maintained by the first group of servers (AC).
Int. Patent Number
Int. Patent Classification
G06F21/62; H04L9/08; H04L9/32
Ford B, Gasser L, Kokoris Kogias E, Janovic P. Methods and systems for secure data exchange. 2019.
Ford, B., Gasser, L., Kokoris Kogias, E., & Janovic, P. (2019). Methods and systems for secure data exchange.
Ford, Bryan, Linus Gasser, Eleftherios Kokoris Kogias, and Philipp Janovic. “Methods and Systems for Secure Data Exchange,” 2019.
B. Ford, L. Gasser, E. Kokoris Kogias, and P. Janovic, “Methods and systems for secure data exchange.” 2019.
Ford B, Gasser L, Kokoris Kogias E, Janovic P. 2019. Methods and systems for secure data exchange.
Ford, Bryan, et al. Methods and Systems for Secure Data Exchange. 2019.
Link(s) to Main File(s)