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Posted to issues-all@impala.apache.org by "Wenzhe Zhou (Jira)" <ji...@apache.org> on 2020/10/06 00:31:00 UTC
[jira] [Updated] (IMPALA-10205) Avoid MD5 hash for data file path
of IcebergTable
[ https://issues.apache.org/jira/browse/IMPALA-10205?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wenzhe Zhou updated IMPALA-10205:
---------------------------------
Summary: Avoid MD5 hash for data file path of IcebergTable (was: Replace MD5 hash algorithm for data file path of IcebergTable)
> Avoid MD5 hash for data file path of IcebergTable
> -------------------------------------------------
>
> Key: IMPALA-10205
> URL: https://issues.apache.org/jira/browse/IMPALA-10205
> Project: IMPALA
> Issue Type: Improvement
> Components: Frontend
> Affects Versions: Impala 4.0
> Reporter: Wenzhe Zhou
> Assignee: Wenzhe Zhou
> Priority: Major
> Labels: FIPS
> Fix For: Impala 4.0
>
>
> To support FIPS, all new code have to use FIPS-approved algorithms. Current code generate data path hash in MD5 hash for Iceberg Table. But MD5 is one of forbidden algorithms for FIPS. Even for non-security purposes, like hash map, we still cannot use MD5 since CryptoComply libraries have no way to distinguish between hash function being used for non-security purposes versus security purposes. We have to replace MD5 with FIPS-approved algorithm, or non-cryptographic hash function like Murmur-hash.
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