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path: root/toys/pending/mcookie.c
AgeCommit message (Collapse)Author
2019-02-23Cleanup mcookie.Rob Landley
2019-02-23Here's an 'mcookie' implementation for toybox.Isaac Dunham
mcookie simply prints out 16 bytes of entropy in hexadecimal; it is typically used as the source for the "MIT magic cookies" that X11 uses for "secure" connections. The only implementation I know of is in util-linux; the problems with its documented behavior motivated me to write an alternate implementation. Specifically, getting 128 bytes from the kernel and finding the MD5 sum is not a sane PRNG, especially when only 16 bytes are needed.