Integration of an RSA-2048-bit public key cryptography solution in the development of secure voice recognition processing applications

Authors

  • Nhu-Quynh Luc*
  • Duc-Huy Quach
  • Chi-Hung Vu
  • Hong-Truong Nguyen
  • Thanh-Long Vo-Khac

Keywords:

artificial neural network, fast Fourier transform, hidden Markov model, Rivest-Shamir-Adleman

Abstract

The authors initially employs the fast Fourier transform (FFT) approach to transforming voice inputs into digital signals before integrating a speech recognition solution (which includes two models: the hidden Markov model (HMM) and the artificial neural network (ANN)). To achieve standard-tone identification of voice signals and digitally store speech, the authors then incorporated a 2048-bit Rivest-Shamir-Adleman (RSA) encryption method to encrypt and decrypt digital speech. The authors’ building team constructed the program using a 256-bit advanced encryption standard - Galois counter mode (AES-GCM) encryption method to assure the application’s effectiveness. The authors successfully created a voice recognition application according to the HMM of ANN. The collected findings suggest that the authors’ secure speech recognition program (named soft voice - RSA) has improved in terms of safety, keeping speech material secret, and speed. It takes roughly 0.2 s to generate a 2048-bit RSA key pair that exceeds the National Institute of Standards and Technology (NIST) standard, 700-1070 ms to process speech, 1-4 ms to encrypt 2048-bit RSA, 6-8 ms to decrypt 2048-bit RSA.

DOI:

https://doi.org/10.31276/VJSTE.65(3).03-07

Classification number

1.2

Author Biographies

Nhu-Quynh Luc

Academy of Cryptography Techniques, 141 Chien Thang Road, Tan Trieu Ward, Thanh Tri District, Hanoi, Vietnam

Duc-Huy Quach

Academy of Cryptography Techniques, 141 Chien Thang Road, Tan Trieu Ward, Thanh Tri District, Hanoi, Vietnam

Chi-Hung Vu

Academy of Cryptography Techniques, 141 Chien Thang Road, Tan Trieu Ward, Thanh Tri District, Hanoi, Vietnam

Hong-Truong Nguyen

Academy of Cryptography Techniques, 141 Chien Thang Road, Tan Trieu Ward, Thanh Tri District, Hanoi, Vietnam

Thanh-Long Vo-Khac

Academy of Cryptography Techniques, 141 Chien Thang Road, Tan Trieu Ward, Thanh Tri District, Hanoi, Vietnam

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Published

2023-09-15

Received 20 October 2022; revised 20 December 2022; accepted 28 December 2022

How to Cite

Nhu-Quynh Luc, Duc-Huy Quach, Chi-Hung Vu, Hong-Truong Nguyen, & Thanh-Long Vo-Khac. (2023). Integration of an RSA-2048-bit public key cryptography solution in the development of secure voice recognition processing applications. Vietnam Journal of Science, Technology and Engineering, 65(3), 3-7. https://doi.org/10.31276/VJSTE.65(3).03-07

Issue

Section

Mathematics and Computer Science