The Free Software Foundation has developed its own OpenPGP-compliant program called GNU Privacy Guard ( abbreviated GnuPG or GPG ).

This issue is not fully specific to S / MIME-other secure methods of signing webmail may also require a browser to execute code to produce the signature, exceptions are PGP Desktop and versions of GnuPG, who will grab the data out of the webmail, sign it by means of a clipboard, and put the signed data back into the webmail page.

Popular electronic signature standards include the OpenPGP standard supported by PGP and GnuPG, and some of the S / MIME IETF standards.

In addition to providing encryption and authentication — features also provided by typical public-key cryptography suites, such as PGP, GnuPG, and X. 509 ( S / MIME ) — OTR also offers some less common features:

Software applications such as GnuPG or PGP can be used to encrypt data files and Email.

GNU Privacy Guard ( GnuPG or GPG ) is a GPL Licensed alternative to the PGP suite of cryptographic software.

GnuPG is compliant with RFC 4880, which is the current IETF standards track specification of OpenPGP.

Current versions of PGP ( and Veridis ' Filecrypt ) are interoperable with GnuPG and other OpenPGP-compliant systems.

GnuPG is a part of the Free Software Foundation's GNU software project, and has received major funding from the German government.

Because GnuPG is an OpenPGP standard compliant system, the history of OpenPGP is of importance.

The older stable 1. x branch, whose latest version as of January 2012 is 1. 4. 12, will be continued in parallel with the new GnuPG 2 series because there were significant changes in the architecture of the program which will not fit every purpose.

Although the basic GnuPG program has a command line interface, there exist various front-ends that provide it with a graphical user interface.

For example, GnuPG encryption support has been integrated into KMail and Evolution, the graphical e-mail clients found in KDE and GNOME, the most popular Linux desktops.

For Mac OS X, the Mac GPG project provides a number of Aqua front-ends for OS integration of encryption and key management as well as GnuPG installations via Installer packages.

Furthermore, the GPGTools Installer installs all related OpenPGP applications ( GPG Keychain Access ), plugins ( GPGMail ) and dependencies ( MacGPG ) to use GnuPG based encryption.

Instant messaging applications such as Psi and Fire can automatically secure messages when GnuPG is installed and configured.

The cross-platform extension Enigmail provides GnuPG support for Mozilla Thunderbird and SeaMonkey.

Similarly, Enigform provides GnuPG support for Mozilla Firefox.

In 2005, G10 Code and Intevation released Gpg4win, a software suite that includes GnuPG for Windows, WinPT, Gnu Privacy Assistant, and GnuPG plug-ins for Windows Explorer and Outlook.

These tools are wrapped in a standard Windows installer, making it easier for GnuPG to be installed and used on Windows systems.

It is not an archiver like RAR or ZIP ; the program itself has no facilities for multiple files, encryption or archive-splitting, but, in the UNIX tradition, relies instead on separate external utilities such as tar and GnuPG for these tasks.

In cryptography, a web of trust is a concept used in PGP, GnuPG, and other OpenPGP-compatible systems to establish the authenticity of the binding between a public key and its owner.

In statistical analysis of the PGP / GnuPG / OpenPGP Web of trust the mean shortest distance ( MSD ) is one measurement of how " trusted " a given PGP key is within the " strongly connected " set of PGP keys that make up the Web of trust.

It is true that, initially, the task was to remove restrictions that, it was thought, inhibited the free flow of money, goods, and labor ; ;

The term was initially used generally as an adjective for animals that could live on land or in water, including seals and otters.

The poem was initially published two years later in The Congregationalist, to commemorate the Fourth of July.

Johnston was initially buried in New Orleans.

The other major family of abugidas, Canadian Aboriginal syllabics, was initially developed in the 1840s by missionary and linguist James Evans for the Cree and Ojibwe languages.

The separation of curium and americium was so painstaking that those elements were initially called by the Berkeley group as pandemonium ( from Greek for all demons or hell ) and delirium ( from Latin for madness ).

The half-life of this decay was initially determined at 17 hours, which was close to the presently accepted value of 16. 02 h.

In the mid-1870s, a form of amplitude modulation — initially called " undulatory currents "— was the first method to successfully produce quality audio over telephone lines.

The division of labour was initially discussed by Adam Smith, regarding the manufacture of pins, in his book The Wealth of Nations ( published in 1776 ).

Louisa May was not interested initially but agreed to try.

In one such theory, put forward by Sir E. B. Tylor, early humans initially, through mere observation, recognized what might be called a soul, life-force, spirit, breath or animus within themselves ; that which was present in the body in life and absent in death.

The projected union initially aroused great opposition: he did not consult with his father, who had been on vacation in Karlovy Vary and making arrangements to secure the hand of a German princess for his son, or his Prime Minister Dr. Vladan Đorđević, who was visiting the Paris Universal Exhibition at the time of the announcement.

In 1839, Johnson entered the race for re-election to his House seat, initially as a Whig ; when another Whig entry arose, to enhance his position in the campaign, he ran as a Democrat and was elected to his second, non-consecutive term in the Tennessee House.

" Lincoln's Emancipation Proclamation applied initially only to states in rebellion ; Johnson rationalized that Tennessee in this regard was a part of the Union, and on that basis requested, and received, an exemption from the Proclamation.

It was initially intended to be a next generation video game machine, but was redesigned as a general purpose computer after the North American video game crash of 1983.

His new firm was initially called Horch Automobil-Werke GmbH, but following a legal dispute over the Horch name, he decided to make another automobile company.

At the time of his birth Grothendieck's mother was married to Johannes Raddatz, a German journalist, and his birthname was initially recorded as Alexander Raddatz.

Relatively little of his work after 1960 was published by the conventional route of the learned journal, circulating initially in duplicated volumes of seminar notes ; his influence was to a considerable extent personal.

Amerigo Vespucci () ( March 9, 1454February 22, 1512 ) was an Italian explorer, financier, navigator and cartographer who first demonstrated that Brazil and the West Indies did not represent Asia's eastern outskirts as initially conjectured from Columbus ' voyages, but instead constituted an entirely separate landmass hitherto unknown to Afro-Eurasians.

These were initially custom devices, but it was soon common to include such support in a LocalTalk-to-Ethernet bridge.