21 Code For Federal Regulation Parts 1305, 1311 Page 56

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the operational period; and (e) contains a serial number and is digitally signed by the
Certification Authority issuing it.
Digital signature means a record created when a file is algorithmically transformed into a
fixed length digest that is then encrypted using an asymmetric cryptographic private key
associated with a digital certificate. The combination of the encryption and algorithm
transformation ensure that the signer’s identity and the integrity of the file can be confirmed.
Electronic signature means a method of signing an electronic message that identifies a
particular person as the source of the message and indicates the person’s approval of the
information contained in the message.
FIPS means Federal Information Processing Standards. These Federal standards
prescribe specific performance requirements, practices, formats, communications protocols, etc.,
for hardware, software, data, etc.
FIPS 140-2 means a Federal standard for security requirements for cryptographic
modules.
FIPS 180-2 means a Federal secure hash standard.
FIPS 186-2 means a Federal standard for applications used to generate and rely upon
digital signatures.
Key pair means two mathematically related keys having the properties that (a) one key
can be used to encrypt a message that can only be decrypted using the other key and (b) even
knowing one key, it is computationally infeasible to discover the other key.
NIST means the National Institute of Standards and Technology.
Private key means the key of a key pair that is used to create a digital signature.
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