SAS Tip: Limitations of PROC PWENDCODE (Daily tip for 2025-Oct-21)


Passwords and keys encoded using PROC PWENCODE do not work for AES encryption keys and SAS data set proprietary passwords. Metadata-bound, encrypted meta-LIBNAMEs are an alternative.


Thanks to Thomas Billings for this tip. Read more details in this paper from WUSS 2017: Keeping Passwords AES Encryption Keys and Other Sensitive Parameters Out of Source Code and Logs.

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