Method and system for securely storing and transmitting data by applying a one-time pad

Abstract

An approach for securely transmitting and storing data is described. A sending host generates a random sequence of characters as a keystream as a one-time pad. The keystream is bitwise combined with plaintext using an exclusive-OR operation to create ciphertext. The keystream and ciphertext are routed over physically separate communication paths to a receiving host, which decrypts by applying the keystream to the ciphertext using exclusive-OR, The separately routed paths may be established using MPLS labeling or strict route options.

Description

technical field [0001] The present invention relates generally to secure communication techniques. More particularly, the present invention relates to a method and system for storing and transmitting data by using a one-time pad. Background technique [0002] As people rely more and more on computer-based communication technologies, the security of data transfer and storage becomes increasingly important. These transactions typically involve the transfer of confidential corporate or personal data between clients or between a server and a client over a computer network system. [0003] In a typical network system, such as a Metropolitan Area Network (MAN) or a Wide Area Network (Wide Area Network, WAN), multiple users access and communicate through a shared communication network. Many computer applications require the transfer of confidential or sensitive data over these shared networks, and unless such applications are carefully protected, these applications must treat the...

AI Technical Summary

Problems solved by technology

[0010] 4) Pretend to be an administrator, so that the attacker can perform storage operations and complete control on the storage device, and the attacker can also use the network

The size of the keystream can be reduced and repeated, resulting in enough keystream to encrypt the text, but this makes the ciphertext vulnerable to certain statistical and dictionary attacks

[0024] The second difficulty is that the keystream must be completely random so that neither side can share some seed and predict the next bit

Sending the key in parallel with the ciphertext allows an attacker to eavesdrop on both data streams at the same time without any security advantage since the attacker can restore the data stream as easily as the terminal

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