generally good things to read

"Architectural Principles of the Internet", <https://tools.ietf.org/html/rfc1958>.
"RFC6973: Privacy Considerations for Internet Protocols", <https://tools.ietf.org/html/rfc6973>.
[YEE02] Yee, Ka-Ping., "User Interaction Design for Secure Systems", Computer Science Department, University of California, Berkeley, May 2002, <http://zesty.ca/pubs/csd-02-1184.pdf>.
[SECNOTSEP] Miller, M., Tulloh, B., Shapiro, J., "The Structure of Authority: Why Security Is not a Separable Concern", <http://www.erights.org/talks/no-sep/secnotsep.pdf>.

IRTF's HRPC documents

Note that the IRTF's Human Rights Protocol Considerations Research Group has much more information available here: https://hrpc.io/
"Research into Human Rights Protocol Considerations", <https://tools.ietf.org/html/rfc8280>.
"Anonymity, Human Rights and Internet Protocols", <https://tools.ietf.org/html/draft-irtf-hrpc-anonymity-00>.
"Guidelines for Human Rights Protocol Considerations", <https://tools.ietf.org/html/draft-irtf-hrpc-guidelines-00>.