[jira] Commented: (INFRA-2042) EOL SHA1, DSA

["Robert Burrell Donkin (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/INFRA-2042?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12706824#action_12706824 ] 

Robert Burrell Donkin commented on INFRA-2042:
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Note that ATM attacks on SHA1 and DSA are still very, very difficult and artifacts protected by them should be considered safe for now  

> EOL SHA1, DSA 
> --------------
>
>                 Key: INFRA-2042
>                 URL: https://issues.apache.org/jira/browse/INFRA-2042
>             Project: Infrastructure
>          Issue Type: Task
>      Security Level: public(Regular issues) 
>            Reporter: Robert Burrell Donkin
>
> [PLEASE LEAVE OPEN FOR LONG TERM TRACKING]
> NIST advises [1] SHA1 has been scheduled for EOL in 2010. Recent research[2] has revealed new vulnerabilities in SHA1.  
> DSA requires a 160bit hash with SHA1 the most common choice. DSA has a 1024bit key length. This is considered too short[4] with 4096 bits being better but 8192 preferrable. Most digital signatures - including many of those which secure the WOT[3] and Apache releases- use SHA1 and SDA. 
> Debian are preparing to start transitioning away from DSA and SHA1[5]. Apache should think about how to do the same.
> [1] See http://csrc.nist.gov/publications/nistpubs/800-57/SP800-57-Part1.pdf
> [2] See http://eurocrypt2009rump.cr.yp.to/837a0a8086fa6ca714249409ddfae43d.pdf
> [3] Web Of Trust
> [4] Applied Cryptography, Long Range Factor Predications
> [5] http://www.debian-administration.org/users/dkg/weblog/48

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