CPC H04L 9/0861 (2013.01) [H04L 9/0825 (2013.01); H04L 9/085 (2013.01); H04L 9/3247 (2013.01)] | 20 Claims |
1. A method, comprising:
accessing, by a first device, data contained on an intermediary data storage device, wherein the intermediary data storage device is a uniform resource locator (URL), a one-way link, or a scanner, and wherein the first device is offline with respect to at least a second device;
accessing, by the first device, a first secret share generated based on a secret key;
partially signing the data, by the first device, using the first secret share;
providing a second device access to the partially signed data while the first device is still offline with respect to the second device; and
generating, by the second device, further signed data based on the partially signed data, wherein the further signed data corresponds to a public key generated based on a plurality of secret shares including the first secret share and a second secret share.
|