U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Total Break of the SRP Encryption Scheme

Published

Author(s)

Ray A. Perlner, Albrecht R. Petzoldt, Daniel C. Smith-Tone

Abstract

Multivariate Public Key Cryptography (MPKC) is one of the main candidates for secure communication in a post-quantum era. Recently, Yasuda and Sakurai proposed in [7] a new multivariate encryption scheme called SRP, which combines the Square encryption scheme with the Rainbow signature scheme and the Plus modifier. In this paper we propose a practical key recovery attack against the SRP scheme, which is based on the min-Q-rank property of the system. Our attack is very efficient and allows us to break the parameter sets recommended in [7] within minutes. Our attack shows that combining a weak scheme with a secure one does not automatically increase the security of the weak scheme.
Proceedings Title
Selected Areas in Cryptography (SAC 2017)
Volume
10719
Conference Dates
August 16-18, 2017
Conference Location
Ottowa
Pub Type
Conferences

Download Paper

https://doi.org/10.1007/978-3-319-72565-9_18

Keywords

Multivariate Cryptography, SRP Encryption Scheme, Cryptanalysis, min-Q-Rank
Cryptography

Citation

Perlner, R. , Petzoldt, A. and Smith-Tone, D. (2017), Total Break of the SRP Encryption Scheme, Selected Areas in Cryptography (SAC 2017), Ottowa, -1, [online], https://doi.org/10.1007/978-3-319-72565-9_18 (Accessed October 31, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created December 23, 2017, Updated November 10, 2018