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In cryptography, key size, key length, or key space refer to the number of bits in a key used by a cryptographic algorithm.
The Data Encryption Standard is a symmetric-key algorithm for the encryption of digital data. Although its short key length of 56 bits makes it too insecure for modern applications, it has been highly influential in the advancement of cryptography.
A digital signature is a mathematical scheme for verifying the authenticity of digital messages or documents. A valid digital signature, where the prerequisites are satisfied, gives a recipient very high confidence that the message was created by a known sender (authenticity), and that the message was not altered in transit (integrity).
Articles related to cryptography include:
The Encrypting File System (EFS) on Microsoft Windows is a feature introduced in version 3.0 of NTFS that provides filesystem-level encryption. The technology enables files to be transparently encrypted to protect confidential data from attackers with physical access to the computer.
There are a number of standards related to cryptography. Standard algorithms and protocols provide a focus for study; standards for popular applications attract a large amount of cryptanalysis.
STU-III is a family of secure telephones introduced in 1987 by the NSA for use by the United States government, its contractors, and its allies. STU-III desk units look much like typical office telephones, plug into a standard telephone wall jack and can make calls to any ordinary phone user. When a call is placed to another STU-III unit that is properly set up, one caller can ask the other to initiate secure transmission. They then press a button on their telephones and, after a 15-second delay, their call is encrypted to prevent eavesdropping. There are portable and militarized versions and most STU-IIIs contained an internal modem and RS-232 port for data and fax transmission. Vendors were AT&T, RCA and Motorola.
Fortezza is an information security system that uses the Fortezza Crypto Card, a PC Card-based security token. It was developed for the U.S. government's Clipper chip project and has been used by the U.S. Government in various applications.
Secure Terminal Equipment (STE) is the U.S. government's current, encrypted telephone communications system for wired or "landline" communications. STE is designed to use ISDN telephone lines which offer higher speeds of up to 128 kbit/s and are all digital. The greater bandwidth allows higher quality voice and can also be utilized for data and fax transmission through a built-in RS-232 port. STE is intended to replace the older STU-III office system and the KY-68 tactical system. STE sets are backwards compatible with STU-III phones, but not with KY-68 sets.
Internet security is a branch of computer security. It encompasses the Internet, browser security, web site security, and network security as it applies to other applications or operating systems as a whole. Its objective is to establish rules and measures to use against attacks over the Internet. The Internet is an inherently insecure channel for information exchange, with high risk of intrusion or fraud, such as phishing, online viruses, trojans, ransomware and worms.
MIFARE is the NXP Semiconductors-owned trademark of a series of integrated circuit (IC) chips used in contactless smart cards and proximity cards.
The National Security Agency took over responsibility for all U.S. Government encryption systems when it was formed in 1952. The technical details of most NSA-approved systems are still classified, but much more about its early systems have become known and its most modern systems share at least some features with commercial products.
BATON is a Type 1 block cipher in use since at least 1995 by the United States government to secure classified information.
A security token is a peripheral device used to gain access to an electronically restricted resource. The token is used in addition to or in place of a password. It acts like an electronic key to access something. Examples of security tokens include wireless keycards used to open locked doors, or a banking token used as a digital authenticator for signing in to online banking, or signing a transaction such as a wire transfer.
The Defense Information System Network (DISN) has been the United States Department of Defense's enterprise telecommunications network for providing data, video, and voice services for 40 years.
Capstone is a United States government long-term project to develop cryptography standards for public and government use. Capstone was authorized by the Computer Security Act of 1987, driven by the National Institute of Standards and Technology (NIST) and the National Security Agency (NSA); the project began in 1993.
The KOV-21 is a cryptographic PC card module developed under the auspices of the U.S. National Security Agency and manufactured by Sypris Electronics LLC. It is intended to be the cryptographic engine for next generation key management devices, such as the AN/PYQ-10 key loader, as part of the U.S. Government's Cryptographic Modernization Initiative. Sypris was awarded a contract for production of KOV-21 units in November, 2007.
The KSV-21 Enhanced Crypto Card is a US National Security Agency-approved PC card that provides Type 1 encryption functions and key storage to the STE secure telephones and other devices.
SafeNet, Inc. was an information security company based in Belcamp, Maryland, United States, which was acquired in August 2014 by the French security company Gemalto. Gemalto was, in turn, acquired by Thales Group in 2019. The former SafeNet's products include solutions for enterprise authentication, data encryption, and key management. SafeNet's software monetization products are sold under the Thales Sentinel brand.
Teradici Corporation was a privately held software company founded in 2004, which was acquired by HP Inc. in October 2021. Teradici initially developed a protocol (PCoIP) for compressing and decompressing images and sound when remotely accessing blade servers, and implemented it in hardware. This technology was later expanded to thin clients/zero clients for general Virtual Desktop Infrastructure. Teradici's protocol or hardware is used by HP, Dell-Wyse, Amulet Hotkey, Samsung, Amazon Web Services, Fujitsu, and VMware.
References
- ↑ "Department of Defense Awards Enhanced Crypto Card Development Contract to SafeNet". Business Wire. 2005-03-14. Retrieved 2009-12-21.
- ↑ Information Technology Department of the National Nuclear Security Administration. "Solicitation DE-AI52-08NA28817". DoE Industry Interactive Procurement System. Retrieved 2009-12-21.[ permanent dead link ]
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