公开(公告)号：US11968202B2

公开(公告)日：2024-04-23

申请号：US16422591

申请日：2019-05-24

Applicant: Avast Software s.r.o.

Inventor： Karel Fuka ,  Vojt{hacek over (e)}ch Tůma

IPC: H04L29/06 ,  H04L9/40

CPC classification number: H04L63/083

Abstract: A method of authenticating a user to a computer in an adverse environment includes receiving the user's password in a trusted user device, such as by the user typing the password, and encoding a keyword with a hash of the entered password to create an encoded keyword. The encoded keyword is sent from the trusted user device to the computer using a physical communication channel perceivable by the user; and the encoded keyword is compared in the computer with a keyword encoded with a known hash of the user's password in the computer to authenticate the user.

公开(公告)号：US11368465B2

公开(公告)日：2022-06-21

申请号：US16796802

申请日：2020-02-20

Applicant: Avast Software s.r.o.

Inventor： Karel Fuka ,  Matús Baniar

IPC: G06F7/04 ,  H04L9/40 ,  H04L67/1097 ,  H04L9/06

Abstract: Systems and methods provide an entity identifier (EID) for use in distributed systems, where the entity identifier includes inherent privacy features and where an estimate of the distinct count of the entity identifiers in a distributed system can be determined. A unique identifier (e.g., a GUID) for an entity is received. A hash value can be generated for the unique identifier using a hash function that is not guaranteed to generate unique values. An EID is created using a portion of the bits of the hash value and stored in a database. An estimated distinct count of entities based on a count of EIDs in the database can be determined based on the count of EIDs in the database and the size of the EID space.

公开(公告)号：US20200374277A1

公开(公告)日：2020-11-26

申请号：US16422591

申请日：2019-05-24

Applicant: Avast Software s.r.o.

Inventor： Karel Fuka ,  Vojtech Tuma

IPC: H04L29/06

Abstract: A method of authenticating a user to a computer in an adverse environment includes receiving the user's password in a trusted user device, such as by the user typing the password, and encoding a keyword with a hash of the entered password to create an encoded keyword. The encoded keyword is sent from the trusted user device to the computer using a physical communication channel perceivable by the user; and the encoded keyword is compared in the computer with a keyword encoded with a known hash of the user's password in the computer to authenticate the user.

公开(公告)号：US20200274879A1

公开(公告)日：2020-08-27

申请号：US16796802

申请日：2020-02-20

Applicant: Avast Software s.r.o.

Inventor： Karel Fuka ,  Matús Baniar

IPC: H04L29/06 ,  H04L9/06 ,  H04L29/08

Abstract: Systems and methods provide an entity identifier (EID) for use in distributed systems, where the entity identifier includes inherent privacy features and where an estimate of the distinct count of the entity identifiers in a distributed system can be determined. A unique identifier (e.g., a GUID) for an entity is received. A hash value can be generated for the unique identifier using a hash function that is not guaranteed to generate unique values. An EID is created using a portion of the bits of the hash value and stored in a database. An estimated distinct count of entities based on a count of EIDs in the database can be determined based on the count of EIDs in the database and the size of the EID space.