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NEC Debuts Privacy-Focused Facial Recognition That Stores No Actual Images

Human face with blue and orange lighting and overlaid grid pattern depicting facial scanning

‘The system employs a “secret computing method” that enables verification while maintaining key protection, allowing the entire authentication process to occur in an encrypted state.’

NEC has unveiled a biometric “fluctuation” estimation technology that promises to enhance privacy protection while maintaining high accuracy in facial recognition systems. The new technology generates and authenticates cryptographic keys using biometric information without storing actual facial data, significantly reducing privacy risks.Close-up of an asian woman’s face with an overlaid red digital grid pattern across her eyes and cheeks, depicting facial recognition or biometric scanning technology.

The innovation comes as part of NEC’s continued evolution in biometric solutions, building on its extensive experience deploying facial recognition systems at major events and its successful implementation of biometric payment solutions.

At the heart of the technology is a sophisticated algorithm that can generate consistent individual keys even when facial information changes between captures. This is achieved through a unique “fluctuation estimation” process that analyzes variations in facial data compared to registered information.

The system employs a “secret computing method” that enables verification while maintaining key protection, allowing the entire authentication process to occur in an encrypted state. This advancement effectively eliminates the risk of key leakage during processing.

A significant feature of the new technology is its compatibility with standard digital signature methods, including ECDSA and EdDSA. This compatibility enables its use in various applications, from electronic document authentication to digital asset trading and certificate presentation.

NEC plans to initially implement the technology in payment systems and entry/exit control applications. The company has been showcasing this innovation at Retail Tech Japan 2025 this week in Tokyo.

Source: Futubull

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March 7, 2025 – by Ali Nassar-Smith