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Extend the max input length bound for SHA3 - #817
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[CI] Important!
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Python PR: python/cpython#104401 |
karthikbhargavan
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karthikbhargavan
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Looks good. Can we (in this or subsequent PR) document the error code results of the high-level hash APIs?
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Thanks, the other streaming APIs are properly documented (https://github.com/hacl-star/hacl-star/blob/main/dist/gcc-compatible/Hacl_Streaming_SHA2.h#L139-L151) but because SHA3 was just recently added (for the Python3 work), we haven't had the time to add suitable comments. Is this something you can help with? It's merely a matter of copy-pasting the existing documentation in the files sitting in the same directory and adapting it to sha3. |
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Yes, I will add these comments in the next PR. |
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Owing to a typo, the length of data that could be hashed by the SHA3 streaming API was artificially low. This did not affect soundness, but just meant that the
updatefunction would return a non-zero return value to indicate that the maximum input length was exceeded.The new max input length is 2^64-1, which no client can exceed in reasonable time.