NSA Suite A Cryptography

NSA Suite A Cryptography is NSA cryptography which "contains classified algorithms that will not be released". "Suite A will be used for the protection of some categories of especially sensitive information (a small percentage of the overall national security-related information assurance market)."

Incomplete list of Suite A algorithms
Name Type Purpose
ACCORDION Encryption Key encryption. In NGLD-M (circa 2019):
  • 1.3 is used for TrKEK (transfer key encryption key) and internal key wrap
  • 3.0 internal key wrap and KMI Black key wrap
BATON Block cipher See article
CDL 1, CDL 2 ? ?
FFC ? ?
FIREFLY and Enhanced FIREFLY Key exchange ?
JOSEKI ? ?
KEESEE ? ?
KM-TG Series Signature In NGLD-M: Security-related software
MAYFLY ? ?
MEDLEY Symmetric encryption In NGLD-M: Data at Rest (DAR) and non-crypto software
MERCATOR ? ?
SAVILLE Encryption (1960s) Voice and data over radio, see article
SHILLELAGH ? ?
SILVER LINING Signature In NGLD-M: Security-related software
SPONDULIX-S Key Agreement In NGLD-M: KMI
WALBURN ? ?
WATARI Encryption In NGLD-M: Security-related software
WEASEL ? ?
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