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Software-Defined Perimeter (SDP) Specification v2.0
Software-Defined Perimeter (SDP) Specification v2.0

Software-Defined Perimeter (SDP) Specification v2.0

This document updates the Cloud Security Alliance (CSA) Software-Defined Perimeter (SDP) Specification. Version 1.0 was written by the Software Defined Perimeter Working Group and published in April 2014. 

We believe the original specification was sound and provided a solid architectural and conceptual foundation for securing connectivity. However, it was largely silent on several areas, including SDP access authorization policies, onboarding, and securing non-person entities. In addition, in recent years, the information security industry has embraced the principles espoused in the SDP architecture, which are included in the broad trend of Zero Trust. SDP enhances Zero Trust implementations. This revised version of the SDP specification is expanded and enhanced to include additions, clarifications, and extensions. 

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