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K-XMSS and K-SPHINCS+: Enhancing Security in Next-Generation Mobile Communication and Internet Systems with Hash

Minjoo Sim1, Siwoo Eum1, Gyeongju Song1

  • 1Department of Information Computer Engineering, Hansung University, Seoul 02876, Republic of Korea.

Sensors (Basel, Switzerland)
|September 9, 2023
PubMed
Summary
This summary is machine-generated.

This study introduces K-XMSS and K-SPHINCS+, new hash-based signature schemes using Korean cryptography. These schemes offer enhanced security for mobile communication and internet systems in the post-quantum era.

Keywords:
Korean cryptography algorithmsSPHINCS+XMSShash based signaturessoftware implementations

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Area of Science:

  • Cryptography and Network Security
  • Post-Quantum Cryptography
  • Digital Signature Schemes

Background:

  • Rapid development of Mobile Communication and Internet Systems (MCIS) necessitates robust security measures.
  • Hash-Based Signatures (HBS) offer security based on hash function collision resistance, crucial for post-quantum environments.
  • Existing HBS schemes like XMSS (stateful) and SPHINCS+ (stateless) require secure hash functions.

Purpose of the Study:

  • To propose novel Hash-Based Signature (HBS) schemes, K-XMSS and K-SPHINCS+, for enhanced security in mobile communication systems.
  • To integrate Korean cryptography algorithms as internal hash functions within XMSS and SPHINCS+ frameworks.
  • To evaluate the performance of these new schemes, particularly when optimized with Advanced Vector Extensions 2 (AVX2).

Main Methods:

  • Development of K-XMSS (stateful) and K-SPHINCS+ (stateless) by replacing internal hash functions of XMSS and SPHINCS+.
  • Implementation using Korean cryptography algorithms: Lightweight Secure Hash (LSH), CHAM, and LEA.
  • Performance optimization using Advanced Vector Extensions 2 (AVX2) for reference implementations.

Main Results:

  • Successful reference implementation of K-XMSS and K-SPHINCS+ using specified Korean hash functions.
  • Demonstration of performance improvements for K-XMSS and K-SPHINCS+ through AVX2 optimization.
  • Validation of the proposed schemes' suitability for post-quantum security requirements.

Conclusions:

  • K-XMSS and K-SPHINCS+ provide viable alternatives for secure digital signatures in mobile communication and internet systems.
  • The integration of Korean cryptography algorithms enhances the security and potentially the efficiency of HBS.
  • Advanced implementation techniques like AVX2 can significantly optimize the performance of these post-quantum cryptographic schemes.