BRISK: Dynamic Encryption Based Cipher for Long Term Security.

Area of Science:

• Cryptography and Information Security
• Computer Engineering for Embedded Systems

Background:

• Resource-constrained devices in IoT, sensor networks, and healthcare require secure data sharing.
• Standard cryptographic algorithms are often too complex for these devices.
• Existing dynamic encryption methods may not be suitable for constrained environments.

Purpose of the Study:

• To propose a new, lightweight block cipher named BRISK.
• To adapt the concept of dynamic encryption for resource-constrained environments.
• To enhance security and privacy for devices with limited computational power.

Main Methods:

• Design of a new 32-bit block cipher, BRISK, with simple, efficient round operations.
• Implementation of a novel dynamic encryption strategy by varying cipher specifications (e.g., rounds, components) within a session.
• Focus on hardware and software efficiency for constrained devices.

Main Results:

• BRISK offers a straightforward cipher design suitable for efficient hardware and software implementation.
• The proposed dynamic encryption method enhances security without requiring a large pool of distinct ciphers.
• The cipher is optimized for resource-constrained environments, addressing limitations of standard algorithms.

Conclusions:

• BRISK is a viable cryptographic solution for resource-constrained devices.
• The novel dynamic encryption approach provides adaptable security for evolving threats.
• This work contributes to secure data handling in emerging technologies like IoT and healthcare.