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NSA Suite B Cryptography

Overview#

NSA Suite B Cryptography (Suite B) is a Deprecated National Security Agency (NSA) recommended a set of interoperable cryptographic algorithms is replaced by Commercial National Security Algorithm Suite (CNSA)

RFC 8423 titled: Reclassification of Suite B Documents to Historic Status

NSA Suite B Cryptography standard specifies a mode of operation in which only a specific set of secure cryptographic algorithms are used.

NSA Suite B Cryptography Cryptographic Algorithms are specified by the National Institute of Standards and Technology (NIST) and are used by NSA's Information Assurance Directorate in solutions approved for protecting classified and unclassified National Security Systems (NSS).

NSA Suite B Cryptography:

Additional NSA Suite B Cryptography items#

  • NSA Suite B Cryptography compliant profile for use with TLS 1.2. When configured for Suite B compliant operation, only the restricted set of cryptographic algorithms listed above will be used.
  • A transitional profile for use with TLS 1.0 or TLS 1.1. This profile enables interoperability with non-NSA Suite B Cryptography compliant servers. When configured for NSA Suite B Cryptography transitional operation, additional encryption and hashing algorithms
may be used.

NSA Suite B Cryptography standard is conceptually similar to FIPS 140-2, because it restricts the set of enabled cryptographic algorithms in order to provide an Level Of Assurance.

More Information#

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