Signals intelligence

Signals intelligence (SIGINT) is intelligence-gathering by interception of signals, whether communications between people (communications intelligence—abbreviated to COMINT) or from electronic signals not directly used in communication (electronic intelligence—abbreviated to ELINT). Signals intelligence is a subset of intelligence collection management.

As sensitive information is often encrypted, signals intelligence often involves the use of cryptanalysis to decipher the messages. Traffic analysis—the study of who is signaling whom and in what quantity—is also used to derive information.

History

Origins

Electronic interception appeared as early as 1900, during the Boer Wars. The Royal Navy had installed wireless sets produced by Marconi on board their ships in the late 1890s and some limited wireless signalling was used by the British Army. Some wireless sets were captured by the Boers, and were used to make vital transmissions. Since the British were the only people transmitting at the time, no special interpretation of the signals that were intercepted by the British was necessary.

Sigint (disambiguation)

Sigint or SIGINT may refer to:

List of characters in the Metal Gear series

The Metal Gear franchise features a large number of characters created by Hideo Kojima and designed by Yoji Shinkawa. Its setting features several soldiers with supernatural powers provided by the new advancements of science.

The series follows mercenary Solid Snake given government missions of finding the Metal Gear weapon, resulting in encounters with Gray Fox and Big Boss in Outer Heaven (Metal Gear) and Zanzibar Land (Metal Gear 2: Solid Snake). Later, Solid Snake meets Otacon and opposes Liquid Snake's FOXHOUND in Metal Gear Solid then assists Raiden in fighting both Solidus Snake and the Patriots in Metal Gear Solid 2: Sons of Liberty. Additionally, there are several prequel games that follows Big Boss's past and legend development as well as the origins of FOXHOUND, Outer Heaven and the Patriots.

While the original Metal Gear games had their characters designs modeled after Hollywood actors, the Metal Gear Solid games established a series of consistent designs based on Shinkawa's ideas of what would appeal to gamers. Additionally, several of the characters he designs follow Kojima and the other staff's ideas. Critical reception of the game's cast has been positive as publications praised their personalities and roles within the series.