Povodom Dana  sigurnijeg interneta,  ^{(Safer Internet Day, )}Google je poduzeo inicijativu da upozori korisnike interneta ako je bilo koja od njihovih vjerodajnica za prijavu ugrožena na internetu^(Internet) . Oni to rade s ekstenzijom napravljenom isključivo za Google Chrome pod nazivom Password Checkup. Danas ćemo naučiti više o tome u ovom članku.

Google Provjera lozinke^{(Google Password Checkup Chrome)} proširenje za Chrome

Rekao je Google-

“We built Password Checkup so that no one, including Google, can learn your account details. To do this, we developed privacy-protecting techniques with the help of cryptography researchers at both Google and Stanford University.”

Nakon što ga preuzmete i instalirate, vidjet ćete njegovu ikonu kao  zeleni štit ^{(Green Shield )} u gornjem desnom kutu zaslona.

Kad god koristite svoje vjerodajnice za prijavu na određenu web stranicu ili uslugu, proširenje će ih usporediti s bazom podataka o probijenim uslugama i ugroženim vjerodajnicama koje Google održava.

Kada koristite svoj preglednik s instaliranim navedenim proširenjem za prijavu na web-stranicu ili web-uslugu, on pretvara korisničko ime i lozinku u  Argon2 hash . Prefiks Argon2 hasha^(Argon2) veličine 2 bajta particioniran je u bazu podataka. Ostatak dijela Argon2 hasha^(Argon2) šifriran je korištenjem  enkripcije eliptičke krivulje.^{(Elliptic curve encryption.)}

Sada, kada se prijavite na web stranicu koristeći pohranjene vjerodajnice, snažno raspršena i šifrirana kopija tih vjerodajnica na njihove poslužitelje. To osigurava da Google^(Google) ne može pročitati vaše vjerodajnice .

Koristeći tehniku ​​zasljepljivanja i pronalaženja privatnih informacija, te će se vjerodajnice uskladiti s bazom podataka bez otkrivanja vjerodajnica nikome.

Posljednja provjera se obavlja lokalno na računalu i ako se čini da su vjerodajnice otkrivene, ikona proširenja postaje  crvena ^(red ) i stoga ćete biti upozoreni da promijenite svoju lozinku.

Međusobna zaštita računa

Google je također najavio Cross Account Protection , novu značajku koja će slati informacije o sigurnosnim događajima poput otmice s raznih web-mjesta i aplikacija koje su implementirale ovu značajku kako bi vaš račun bio siguran.

Google navodi sljedeće sigurnosne događaje u vezi sa zaštitom više računa -^{(Cross Account Protection-)}

• We only share the fact that the security event happened.
• We only share basic information about the event, like whether your account was hijacked, or if we forced you to log back in because of suspicious activity.
• We only share information with apps where you have logged in with Google.

Javite nam što mislite o ovim alatima.

Google Password Checkup Chrome extension helps secure accounts

On the occasion of Safer Internet Day, Google has taken the initiative to warn the netizens if any of their login credentials have been compromised on the Internet. They are doing it with an extension made exclusively for Google Chrome called Password Checkup. Today, we will be learning more about it in this article.

Google Password Checkup Chrome extension

Said Google-

“We built Password Checkup so that no one, including Google, can learn your account details. To do this, we developed privacy-protecting techniques with the help of cryptography researchers at both Google and Stanford University.”

Once you have downloaded it and installed it, you will see its icon as a Green Shield on the top right corner of the screen.

Whenever you use your credentials to log in to a particular website or a service, the extension will compare it to the database of the breached services and the compromised credentials which Google maintains.

When you use your browser with the given extension installed to log in to a website or a web service, it converts the username and password into an Argon2 hash. The prefix of the Argon2 hash of the size of 2 bytes is partitioned to the database. The rest of the part of the Argon2 hash is encrypted using the Elliptic curve encryption.

Now, when you log in to a website using the stored credentials, a strongly hashed and encrypted copy of those credentials to their servers. This ensures that your credentials cannot be read by Google.

Using the blinding and private information retrieval technique, these credentials will be matched with the database without revealing the credentials to anyone.

The final check is done locally on the computer and if the credentials seem to be exposed, the extension icon turns to red and hence you are alerted to change your password.

Cross Account Protection

Google has also announced Cross Account Protection, a new feature which will send information about security events like hijacking from various websites and apps that have implemented this feature to keep your account safe.

Google lists the following security events regarding Cross Account Protection-

• We only share the fact that the security event happened.
• We only share basic information about the event, like whether your account was hijacked, or if we forced you to log back in because of suspicious activity.
• We only share information with apps where you have logged in with Google.

Let us know what you think of these tools.

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