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https://issues.apache.org/jira/browse/IVY-1554?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andreas Felder updated IVY-1554:
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Priority: Critical (was: Major)
> Please add additional checksum algorithms
> -----------------------------------------
>
> Key: IVY-1554
> URL: https://issues.apache.org/jira/browse/IVY-1554
> Project: Ivy
> Issue Type: Improvement
> Components: Core
> Affects Versions: 2.4.0
> Reporter: Andreas Felder
> Priority: Critical
> Labels: security
>
> Apache Ivy provides two algorithms (SHA-1 and MD5) to verify correctness of
> files in repository. MD5 is known to be unsafe for a while, which is no
> problem because also SHA-1 is suppported. As of yesterday SHA-1 is also
> broken (e.g. http://hackaday.com/2017/02/23/shattered-sha-1-is-broken/).
> To ensure correctness of our artifacts, please extend those algorithms with
> SHA-256 and or SHA-512.
> MessageDigests are computed in class
> https://git-wip-us.apache.org/repos/asf?p=ant-ivy.git;a=blob;f=src/java/org/apache/ivy/util/ChecksumHelper.java;h=56aa936296fa9fbd9699432f041e06a9e588a618;hb=HEAD
> using {{MessageDigest.getInstance(mdAlgorithm)}}. It should be no problem to
> extend the list of allowed algorithms, because at least with JDK/JRE 6
> SHA-512 is supported (see
> https://docs.oracle.com/javase/6/docs/technotes/guides/security/StandardNames.html#MessageDigest).
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