US 2019/0095604 A1 · METHODS AND SYSTEMS OF SECURELY TRANSFERRING DATA

Abstract

The present disclosure relates to a method and system for securely transferring master keying material between a master dongle (10) and a slave dongle (12). Each dongle (10,12) is connected to a data transfer system. The slave dongle (12) contains a public key and a private key and the master dongle (10) contains master keying material that is to be transferred securely to the slave dongle (12). The data transfer system reads the slave dongle's public key and sends it to the master dongle (10). The master dongle (10) encrypts the master keying material with the slave dongle's public key to produce an encrypted master keying material. The encrypted master keying material is sent via the data transfer system to the slave dongle (12) and the slave dongle (12) decrypts the encrypted master keying material with the slave dongle's private key. This allows multiple users, each having a slave dongle (12a-n) that has been configured in this manner, to use the same master keying material to securely communicate with one another.

Claims17

Dependent claims

A method of securely transferring master keying material between a master dongle and a slave dongle,

wherein the slave dongle contains a public key and a private key,
wherein the master dongle contains master keying material, and wherein the master keying material is for allowing users of the dongles to securely access encrypted data;
the method comprising:
connecting the master dongle and the slave dongle to a data transfer system;
transferring the slave dongle's public key to the master dongle via the data transfer system;
using the slave dongle's public key at the master dongle to encrypt the master keying material and hence produce encrypted master keying material at the master dongle;
transferring the encrypted master keying material to the slave dongle via the data transfer system;
decrypting the encrypted master keying material with the slave dongle's private key at the slave dongle;
and
storing the master keying material at the slave dongle;
such that a user of any of the dongles can use the master keying material to decrypt data encrypted by the same dongle or the other of the dongles.

8 more elements

A system for securely transferring master keying material between a master dongle and a slave dongle, the system comprising:

a data transfer system;
a master dongle containing a master processor, and master keying material;
and
a slave dongle containing a slave processor, a slave public key and a slave private key;
wherein the data transfer system has a plurality of ports for connecting to the master dongle and to the slave dongle;
the data transfer system being configured to transfer the slave dongle's public key to the master dongle;
the master dongle being configured to encrypt the master keying material using the slave dongle's public key to produce an encrypted master keying material;
the data transfer system being configured to transfer the encrypted master keying material to the slave dongle;
and
the slave dongle being configured to decrypt the encrypted master keying material using the slave dongle's private key and to store the master keying material at the slave dongle such that a user of any of the dongles can use the master keying material to decrypt data encrypted by the same dongle or the other of the dongles.

7 more elements

Dependencies are inferred from the claim text.

Methods and systems of securely transferring data

Life of this patent

Methods and systems of securely transferring data

Life of this patent

Abstract

Claims17