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On 10/20/2017 11:10 AM, Dirkjan Ochtman wrote: |
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> |
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> I support Hanno's suggestion of doing just SHA512, but would be |
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> interested in hearing opinions from others who have apparent |
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> security/crypto experience. Maybe the Security project can weigh the |
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> suggestions as well? |
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> |
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The whole discussion is moot so long as we don't have OpenPGP signed |
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gentoo repository in rsync. |
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SHA2-512 is generally quicker than sha256 on 64 bit architectures, but |
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considerably slower for some architectures. Introducing a non-optimized |
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keccak on top of it will have a significant negative performance impact |
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for these arches without much security gain. |
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if we still want two separate hashes, the choice of sha2 and sha3 |
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compination is a good one given they are based on separate constructs. |
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But IMHO we should start where things matter and complete an |
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implementation for OpenPGP signatures of MetaManifests in Portage. |
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-- |
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Kristian Fiskerstrand |
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OpenPGP keyblock reachable at hkp://pool.sks-keyservers.net |
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fpr:94CB AFDD 3034 5109 5618 35AA 0B7F 8B60 E3ED FAE3 |
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