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Shared Secret

Definitions:

  A secret value that has been computed using a key agreement algorithm.
Sources:
NIST SP 800-135 Rev. 1 under Shared secret

  A secret used in authentication that is known to the subscriber and the verifier.
Sources:
NIST SP 800-63-3

  A secret value that has been computed during the execution of a key-establishment scheme, is known by both participants, and is used as input to a key-derivation method to produce secret keying material.
Sources:
NIST SP 800-56B Rev. 2 under Shared secret

  A secret value that has been computed during an execution of a key-establishment scheme between two parties, is known by both participants, and is used as input to a key-derivation method to produce keying material.
Sources:
NIST SP 800-133 Rev. 2 under Shared secret

  A secret value that is computed during a (pair-wise) key-agreement transaction and is used as input to derive a key using a key-derivation method.
Sources:
NIST SP 800-175B Rev. 1 under Shared secret

  A secret value that has been computed using a key-agreement scheme and is used as input to a key-derivation method.
Sources:
NIST SP 800-57 Part 1 Rev. 5 under Shared secret

  The secret byte string that is computed/generated during the execution of an approved key-establishment scheme and used as input to a key-derivation method as part of that transaction.
Sources:
NIST SP 800-56C Rev. 2 under Shared secret