AlphaEta™ Encryption Implementation

Technical Implementation: There are many ways to implement the AlphaEta™ encryption protocol. As an example, we describe here a phase-modulated implementation. After decryption, this system is essentially the same as the emerging differential phase shift keyed (DPSK) modulation method. As shown in the figure below, the encrypted channel is modulated by a phase modulator, and afterwards sent into a traditional optical multiplexer (Mux) to combine it with the other dense wavelength division multiplexers (DWDM) optical channels in the system. The encrypted channel is thus "drop-in" compatible with the available infrastructure.

Real World Implementation: Ultrahigh security is a critical issue in military and corporate communications. But to be deployed, it must come at a reasonable cost and convenience. NuCrypt’s AlphaEta™ uses commercially available off-the-shelf components and is compatible with traditional optical infrastructure. It operates at high data rates, making it the first practical, physics-based ultrahigh security optical encryption technology on the market.

• The bandwidth explosion has led to a corresponding growth in the transmission of sensitive information, such as financial, medical and legal records, as well as homeland security and first responder communications.
• Since traditional encryption schemes are not provably secure, there is a continued need to utilize every possible tool to enhance the secrecy of critical communications.
• Effective security is usually built in layers. Therefore, multiple layers of security oriented technologies are required to thwart the many possible types of attacks.
• New physics-based methods for the first time allow quantifiable security characteristics and, thus, are a better method of security.




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