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Hi, |
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|
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Here's a huge batch of patches for portage.checksum and relevant stuff. |
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It's not a complete rewrite as I have originally planned, and it's still |
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not the code I'd like to see but functionally it has been improved a lot. |
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|
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Notable changes: |
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|
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1. Other modules no longer use hashfunc_map, now they use the public |
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functions instead. |
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|
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2. A method to checksum byte strings (i.e. stuff in-memory) has been |
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added. For better compatibility, practically unused python-fchksum |
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support has been removed. [TODO: possibly port other uses of hashlib |
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in Portage?] |
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|
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3. Tests for all hash functions have been added. This makes it possible |
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to verify that different implementations are working correctly. It is |
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especially important because some of the Keccak (SHA-3) implementations |
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are using pre-FIPS Keccak version. [TODO: make it possible to test |
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all available fallbacks, not only the used function] |
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|
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4. Fallbacks have been reworked so that the relevant modules are loaded |
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only if a better implementation is not available already. Fallbacks for |
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functions that are guaranteed to be available in hashlib have been |
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removed. |
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|
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5. Support using pygcrypt as provider of optimized hash function |
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fallbacks (for ripemd160, Whirlpool and SHA3). |
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|
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6. Support for Streebog (GOST R 34.11-2012) hash algorithm, provided |
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either by pygcrypt or pure Python pygost module. [TODO: find a better |
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pure Python provider] |
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|
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-- |
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Best regards, |
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Michał Górny |
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