Vigil Security, LLC Documents

Here are some documents that might be difficult to find elsewhere.

 

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SDNS Security Protocol 4 (SP4), Revision 1.3, 2 May 1989

The Layer 4 Security Protocol developed as part of the US National Security Agency's Secure Data Network System (SDNS) program.

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SDNS Message Security Protocol (MSP), Revision 1.5, 1 August 1989

The Message Security Protocol developed as part of the US National Security Agency's Secure Data Network System (SDNS) program.

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SDNS Directory Specifications for Utilization with the SDNS Message Security Protocol, Revision 1.4, 1 August 1989

The X.500 Directory attributes that support the Message Security Protocol developed as part of the US National Security Agency's Secure Data Network System (SDNS) program.