|
gptkbp:instance_of
|
gptkb:crypt
|
|
gptkbp:consists_of
|
multiple rotors
|
|
gptkbp:created_by
|
gptkb:U._S._Army_Signal_Corps
|
|
gptkbp:declassified_in
|
1970s
|
|
gptkbp:deployment
|
various military operations
|
|
gptkbp:designed_by
|
gptkb:William_F._Friedman
|
|
gptkbp:developed_by
|
1940s
secure military communications
response to Axis powers
enhance communication security
a response to cryptographic challenges
|
|
gptkbp:employs
|
gptkb:United_States_Army
gptkb:United_States_Navy
|
|
gptkbp:features
|
rotor mechanism
|
|
gptkbp:has_impact_on
|
modern cryptography
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
SIGABA
|
|
gptkbp:influenced_by
|
gptkb:German_Enigma_machine
|
|
gptkbp:is_associated_with
|
gptkb:military_strategy
|
|
gptkbp:is_based_on
|
mathematical principles
|
|
gptkbp:is_considered
|
a precursor to modern encryption techniques
|
|
gptkbp:is_considered_as
|
one of the most secure cipher machines
|
|
gptkbp:is_considered_to_be
|
a significant advancement in cryptography
|
|
gptkbp:is_designed_to
|
prevent enemy interception
|
|
gptkbp:is_known_for
|
its reliability
|
|
gptkbp:is_notable_for
|
its mechanical complexity
its role in securing communications
|
|
gptkbp:is_noted_for
|
its unique design features
|
|
gptkbp:is_part_of
|
U. S. military history
U. S. cryptographic history
U. S. military technology
the history of encryption technology
|
|
gptkbp:is_recognized_as
|
a key tool in WWII
|
|
gptkbp:is_related_to
|
signal intelligence
|
|
gptkbp:is_used_by
|
gptkb:U._S._government
|
|
gptkbp:is_used_for
|
encrypted communication
|
|
gptkbp:is_used_in
|
gptkb:intelligence_operations
diplomatic communications
|
|
gptkbp:is_utilized_in
|
gptkb:U._S._intelligence_agencies
|
|
gptkbp:known_for
|
complexity of design
|
|
gptkbp:notable_for
|
high level of security
|
|
gptkbp:operates_in
|
1950s
|
|
gptkbp:performed_in
|
gptkb:World_War_II
|
|
gptkbp:related_to
|
gptkb:crypt
|
|
gptkbp:replaced_by
|
modern encryption methods
computer-based encryption
|
|
gptkbp:successor
|
gptkb:SIGINT
|
|
gptkbp:type
|
electromechanical cipher machine
|
|
gptkbp:used_by
|
gptkb:United_States
|
|
gptkbp:uses
|
keying system
|
|
gptkbp:was_influenced_by
|
early cipher machines
|
|
gptkbp:was_kept_secret_until
|
1970s
|
|
gptkbp:bfsParent
|
gptkb:Frank_Rowlett
|
|
gptkbp:bfsLayer
|
5
|