Verfahren und System zur Erkennung von Passphrasen in Klartext

Details

Veröffentlichungs-Nr.

EP4625220

Aktenzeichen

EP25165852

Anmeldetag

25. März 2025

Veröffentlichung

28. Januar 2026

Erteilung

28. Januar 2026

Rechtsraum

EP

IPC

G06F21/46G06F21/57G06F21/62

Abstract

Nowadays, platforms are advocating the use of passphrases with the aim to provide a more secure yet memorable form of authentication as passphrases offer ease of remembering and improved adaptability to password policies without compromising usability. Existing password detection methods fail to detect passphrases due to the distinct nature of passphrases, as they involve use of multiple words, symbols, numbers, and special characters. The present disclosure provides a method and a system for detecting passphrases in plain text. The system first receives a plurality of files. Then, the system filters files based on file attributes to obtain potential files. Thereafter, a sensitivity analysis of the potential file is performed based on sensitivity indicators to obtain a sensitivity score for each potential file. Further, the system generates a set of context from text present in each potential file. Finally, the system utilizes a set of context and a sensitivity score of each potential file to identify a set of potential passphrases present in text using a pre-trained machine learning based language model.

Anmelder

Firma

Tata Consultancy Services Limited

Land

🇮🇳 Indien

Fachgebiete