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| -rw-r--r-- | txr.1 | 8 |
1 files changed, 8 insertions, 0 deletions
@@ -40971,6 +40971,14 @@ specifies the user data for the hash table, which can be retrieved using the .code hash-userdata function. +Note: there doesn't exist a keyword for specifying the seed. +This omission is deliberate. These hash construction keywords may appear in the +hash literal +.code #H +syntax. A seed keyword would allow literals to specify their own seed, which +would allow malicious hash literals to be crafted that perpetrate a hash +collision attack against the parser. + .coNP Functions @, hash-construct @ hash-from-pairs and @ hash-from-alist .synb .mets (hash-construct < hash-args << key-val-pairs ) |