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- NSA_encryption_systems abstract "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 has become known and its most modern systems share at least some features with commercial products.Rotor machines from the 1940s and 1950s were mechanical marvels. The first generation electronic systems were quirky devices with cantankerous punched card readers for loading keys and failure-prone, tricky-to-maintain vacuum tube circuitry. Late 20th century systems are just black boxes, often literally. In fact they are called blackers in NSA parlance because they convert classified signals (red) into unclassified signals (black). They typically have electrical connectors for the red signals, the black signals, electrical power, and a port for loading keys. Controls can be limited to selecting between key fill, normal operation, and diagnostic modes and an all important zeroize button that erases classified information including keys and perhaps the encryption algorithms. 21st century systems often contain all the sensitive cryptographic functions on a single, tamper-resistant integrated circuit that supports multiple algorithms and allows over-the-air or network rekeying, so that a single hand-held field radio can interoperate with most current NSA cryptosystems. AN/PRC-152".
- NSA_encryption_systems wikiPageExternalLink HAIPE.
- NSA_encryption_systems wikiPageExternalLink _TSEC.
- NSA_encryption_systems wikiPageExternalLink crypto.
- NSA_encryption_systems wikiPageExternalLink www.nsa.gov.
- NSA_encryption_systems wikiPageExternalLink CryptoM.shtml.
- NSA_encryption_systems wikiPageExternalLink altasec-kg-250.
- NSA_encryption_systems wikiPageID "1042273".
- NSA_encryption_systems wikiPageRevisionID "601908076".
- NSA_encryption_systems hasPhotoCollection NSA_encryption_systems.
- NSA_encryption_systems subject Category:National_Security_Agency.
- NSA_encryption_systems subject Category:National_Security_Agency_encryption_devices.
- NSA_encryption_systems type Artifact100021939.
- NSA_encryption_systems type Device103183080.
- NSA_encryption_systems type Instrumentality103575240.
- NSA_encryption_systems type NationalSecurityAgencyEncryptionDevices.
- NSA_encryption_systems type Object100002684.
- NSA_encryption_systems type PhysicalEntity100001930.
- NSA_encryption_systems type Whole100003553.
- NSA_encryption_systems comment "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 has become known and its most modern systems share at least some features with commercial products.Rotor machines from the 1940s and 1950s were mechanical marvels.".
- NSA_encryption_systems label "NSA encryption systems".
- NSA_encryption_systems sameAs m.040y61.
- NSA_encryption_systems sameAs Q12064512.
- NSA_encryption_systems sameAs Q12064512.
- NSA_encryption_systems sameAs NSA_encryption_systems.
- NSA_encryption_systems wasDerivedFrom NSA_encryption_systems?oldid=601908076.
- NSA_encryption_systems isPrimaryTopicOf NSA_encryption_systems.