IBM Cryptographic Subsystem Concepts and Facilities
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The purpose of this manual is to describe the IBM Cryptographic Subsystem. This
manual shows how the IBM Cryptographic Subsystem uses the Data Encryption Standard
(DBS) algorithm and cryptographic techniques developed by IBM to enhance and comple
ment the security features of existing IBM products.
The subject matter is discussed at a high level; the details about some of the topics men
tioned in this manual are found in the appropriate documents listed under "Related
The reader is assumed to have an elementary knowledge of data processing concepts and
techniques, the IBM S/360 and S/370, teleprocessing and SNA concepts and terminology.
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This exhibit has a reference ID of CH10750. Please quote this reference ID in any communication with the Centre for Computing History.