Data Transmission Security Improvements

Abstract

This disclosure provides for a method of securely transmitting communication information from a first terminal operating in a first coordinate measurement domain to a second remotely-located terminal operating in a second coordinate measurement domain. The method includes combining the communication information with extraneous information to create a data signal, determining a value of an identification variable expressed with respect to the first coordinate measurement domain, where the identification variable value enables the location of the communication information concealed within the data signal to be determined, using a coordinate transform function to calculate a value of the received identification variable expressed with respect to the second coordinate measurement domain, and extracting the information from the received data signal using the calculated identification variable value to distinguish the communication information from the extraneous information.

Description

TECHNICAL FIELD[0001]The present invention relates to the field of secure data transmission and in particular to an improved steganographic method of securely transmitting data between remotely located parties.BACKGROUND OF THE INVENTION[0002]The ability to securely transfer data between remotely located terminals is a necessary requirement for many present day applications, in particular where the data being transferred is confidential, such as in electronic transactions of financial and / or other confidential data between remotely located terminals.[0003]Cryptography is one known way of securely transmitting information. Conventionally, a signal comprising the confidential information is encrypted at a sending device using an encryption key, which encrypts the information in accordance with a selected algorithm. The encrypted signal comprising the encrypted information is subsequently transmitted to a receiving device. To recover the encrypted information a decryption key is used a...

AI Technical Summary

Benefits of technology

The present invention provides a method for safely transmitting large volumes of information while keeping it secure. The method allows for the communication information to be concealed within extraneous information and securely transferred within a data signal. This is done by using a simple and cost-effective method that does not require special hardware. The concealed communication can be quickly recovered at the receiving terminal. The method is particularly effective against intercept-resend type attacks such as eavesdropping. In some embodiments, the first terminal carries out a coordinate transform function to further reduce the processing requirements of the receiving terminal. The identification variable value is a unique identifier for each receiving terminal and helps in easily identifying and extracting the communication information from the received data signal. The identifier simplifies the process of identifying and extracting the communication information.

Problems solved by technology

Provided that this information is maintained confidential, an eavesdropper cannot accurately distinguish between extraneous information and communication information (i.e. the information that the sending terminal wishes to securely transmit to the receiving terminal).

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