History (2024)

OpenPGP is a non-proprietary protocol for encrypting email using public key cryptography.The OpenPGP protocol defines standard formats for encrypted messages, signatures, private keys, and certificates for exchanging public keys.

It is based on the Pretty Good Privacy (PGP) freeware software as originally developed in 1991 by Phil Zimmermann.For that, he was the target of a three-year criminal investigation, because the US government held that US export restrictions for cryptographic software were violated when PGP spread all around the world following its publication as freeware.

Despite the lack of funding, the lack of any paid staff, the lack of a company to stand behind it, and despite government persecution, PGP became the most widely used email encryption software in the world. After the government dropped its case in early 1996, Zimmermann founded PGP Inc.That company and its intellectual property were acquired by Network Associates Inc (NAI) in December 1997.NAI continued to own and develop PGP products for commercial and freeware purposes.In 2002, NAI discontinued development and sales of PGP, and sold the rights to it to a new company, PGP Corporation.

OpenPGP is the open standards version of NAI’s PGP encryption protocol.The OpenPGP Working Group is seeking the qualification of OpenPGP as an Internet Standard as defined by the IETF.Each distinct version of an Internet standards-related specification is published as part of the “Request for Comments” (RFC) document series.

OpenPGP is on the Internet Standards Track and is under active development.Many e-mail clients provide OpenPGP-compliant email security as described in RFC 3156.The current specification is RFC 9580 (August 2024), the successor to RFC 4880.RFC 9580 specifies a suite of required algorithms consisting of X25519, Ed25519, AES-OCB, and SHA2-256.In addition to these algorithms, the standard recommends X448, Ed448, AES-256, SHA2-384, and SHA2-512Beyond these, many other algorithms are supported.

As far as we know, intelligence organizations aren’t able to break it.

Learn more about the technical specifications of OpenPGP on our page about the standards.

History (2024)

FAQs

How do I see all my history? ›

Find & view activity
  1. Go to your Google Account.
  2. On the left navigation panel, click Data & privacy.
  3. Under "History settings," click My Activity.
  4. To access your activity: Browse your activity, organized by day and time. To find specific activity, at the top, use the search bar and filters.

How do I delete my Search history? ›

Manage Search history saved to your Google Account
  1. On your Android phone or tablet, open the Google app .
  2. At the top right, tap your Profile picture or initial. Search history.
  3. Choose the Search history you want to delete. You can choose: All your Search history: Above your history, tap Delete. Delete all time.

How do I see deleted history on Google? ›

You can use one of four ways to find deleted history in Google Chrome:
  1. Make use of DNS cache to recover lost Chrome history.
  2. Restore deleted Chrome history via Google History.
  3. Recover deleted Chrome history from local backups.
  4. Restore Chrome history to the Previous Versions.
Sep 10, 2024

What is the definition of history? ›

History is the study of life in society in the past, in all its aspect, in relation to present developments and future hopes. It is the story of man in time, an inquiry into the past based on evidence. Indeed, evidence is the raw material of history teaching and learning.

Where is my activity history? ›

On your Android phone or tablet, go to myactivity.google.com. Above your activity, select Manage My Activity Verification.

Is it better to delete or clear history? ›

If you want to keep your device more private and keep your browser running smoothly, quickly clearing your device's browser history can help. There's no fixed or recommended time for deleting your browsing history, cache, and cookies. It's all relative to your system's storage space and personal preferences.

Can anyone see my history after I delete it? ›

Once you delete it from your device, it's typically removed from your local storage and cannot be accessed by your ISP. However, if your ISP has previously stored your browsing history, deleting it from your device will not remove it from its records.

Is your search history really deleted? ›

A lot of data is generated as you browse the internet, and clearing your history only deletes the record of addresses you've visited that are stored locally on your device. It doesn't remove your Google search history, or other data stored on remote servers. It also doesn't delete cache data, or disable cookies.

How do I delete all my Google activity history? ›

  1. On your Android phone or tablet, go to myactivity.google.com.
  2. Scroll down to your activity.
  3. Filter your activity. You can filter by both date and product at the same time. To filter by date: Tap Calendar. . ...
  4. Delete activity. To delete all activity you filtered for: Next to the search bar, tap Delete. Delete Results.

How do I permanently delete Google history? ›

  1. On your computer, open Chrome.
  2. At the top right, select More .
  3. Select History. History.
  4. On the left, select Delete browsing data.
  5. Select how much history you want to delete. To delete everything, select All time.
  6. Check the boxes for the info you want Chrome to delete, including Browsing history. ...
  7. Select Delete data.

Does Google keep your search history forever? ›

How long does Google keep your search history? If you created your account after June 2020, Google keeps your search history for 18 months before automatically deleting it. For older accounts, Google keeps search history indefinitely unless you take steps to manually delete it or set up an auto-delete schedule.

Can browsing history be recovered once it is deleted? ›

The easiest method is to do a system restore. If the internet history was deleted recently, then system restore will recover it. To get system restore up and running you can go to the “start” menu and do a search for system restore which will take you to the feature.

Who was known as the father of history? ›

Herodotus was the first writer to perform systematic investigation of historical events. He has been described as "The Father of History", a title conferred on him by the ancient Roman orator Cicero.

What is full history? ›

History is the study of change over time, and it covers all aspects of human society. Political, social, economic, scientific, technological, medical, cultural, intellectual, religious and military developments are all part of history.

Who first started history? ›

Herodotus, from the 5th century BC, has been acclaimed as the "father of history". However, his contemporary Thucydides is credited with having first approached history with a well-developed historical method in the History of the Peloponnesian War.

How do I open all history? ›

History.
  1. On your computer, open Chrome.
  2. In the address bar, enter @history .
  3. Press tab or space. You can also click Search History. in the suggestions.
  4. Enter keywords for the page you previously visited.
  5. Select the page from the list.

How far back does history go? ›

The span of recorded history is roughly 5,000 years, beginning with the development of Sumerian cuneiform script. Ancient history covers all continents inhabited by humans in the period 3000 BC – AD 500, ending with the expansion of Islam in late antiquity.

Where are all the browsing history stored? ›

Where is my web history stored? Your online browsing history is stored within your browser's history section.It is also available as cache files on your computer's hard drive.

Does Google have all my history? ›

Your Search history is saved to your Google Account as part of your Web & App Activity, along with activity from other Google services.

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