Security password manager based on multi-cloud storage and use method thereof

A manager and password technology, applied in the field of network security, can solve problems such as enhancing the robustness of password managers, and achieve the effect of improving security and efficiency

Active Publication Date: 2019-08-27
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: Aiming at the data reliability problems existing in the current multi-cloud storage password manager, to provide a multi-cloud storage password manager combined with the use of RAONT-

Method used

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  • Security password manager based on multi-cloud storage and use method thereof
  • Security password manager based on multi-cloud storage and use method thereof
  • Security password manager based on multi-cloud storage and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0041] 1. In this embodiment, the operation process of the user authentication module includes user registration and user login, such as image 3 shown.

[0042] 1) Before each user login / registration window pops up, it will check whether there is an encrypted configuration file stored locally. If there is, it means that the account of the password manager exists and is ready to log in; if not, it means that the account of the password manager does not exist, and a new account needs to be registered.

[0043] 2) If entering the registration link, the user is required to enter the master password and the configuration information of n cloud databases to complete the initialization setting. Then, based on the key derivation function PBKDF2, the authentication key AuthKey is derived from the master password through 100,000 iterations, and the above configuration information is encrypted and saved locally with the AuthKey.

[0044] 3) If entering the login link, the user is requ...

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PUM

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Abstract

The invention discloses a security password manager based on multi-cloud storage and a use method thereof, the use method comprises the following steps: for accounts and password information of a useron any website, firstly, adopting a (k,n) threshold secret sharing algorithm (combining RAONT-RS algorithm with Shamir algorithm); encrypting information, splitting the encrypted information into n parts, improving the reliability of data by adopting a commitment scheme, and storing the data at n cloud providers; when the password is obtained, the commitment scheme verifying the data firstly, then combining the at least k parts to restore the ciphertext, and finally obtaining the plaintext account and password information through decryption. According to the password manager, the problem of data reliability existing in the multi-cloud storage password manager is solved, the robustness of the password manager under attack is improved on the basis that the data storage security is guaranteed, and meanwhile efficient retrieval can be achieved.

Description

technical field [0001] The invention relates to a secure password manager based on multi-cloud storage, belonging to the technical field of network security. Background technique [0002] A password manager is one of the best solutions for user authentication and password management. A secure password manager can automatically generate, fill and save strong (random) passwords for users on each website, users only need to remember a strong master password to access their password database and corresponding username, password and other information required for certification. However, since password managers control all passwords, they are also prime targets for attackers. Once the password manager is attacked, it will cause huge losses to the users. [0003] At present, mainstream password managers encrypt and store user data locally or on a single cloud. Once an attacker obtains legal access to the database through some means, he or she can carry out exhaustive attacks and...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L29/06H04L9/08G06F21/62G06F21/60
CPCG06F21/604G06F21/6218H04L9/085H04L63/08H04L63/1441H04L67/1097
Inventor 秦中元韩尹张群芳陆海波
Owner SOUTHEAST UNIV
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