[GitHub] commons-codec pull request #8: Add methods to DigestUtils to generate hex fr...

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[GitHub] commons-codec pull request #8: Add methods to DigestUtils to generate hex fr...

mureinik
GitHub user sesuncedu opened a pull request:

    https://github.com/apache/commons-codec/pull/8

    Add methods to DigestUtils to generate hex from MessageDigest et. al.

    *This PR replaces #7 which was associated with the wrong issue number*
    This PR adds methods to DigestUtils to make it easy to generate hexadecimal strings from:
    - MessageDigest,
    - DigestInputStream,
    - DigestOutputStream.
   
      If the underlying digest supports ```clone()```,  a clone is created before calling ```MessageDigest::digest``` to avoid resetting the state.  If this cannot be done, the original digest is used.
   
    [Although clone is optional for MessageDigests, it seems to be almost universally supported (e.g. both the Sun and the IBM  providers implement clone for their concrete digests) ]
   
    Signed-off-by: Simon Spero <[hidden email]>

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/sesuncedu/commons-codec CODEC-238

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/commons-codec/pull/8.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #8
   
----
commit e83cea6d26c0a74c4dcca8bc3e04f8ca7a1593b7
Author: Simon Spero <[hidden email]>
Date:   2017-07-04T20:15:28Z

    Add methods to DigestUtils to generate a hexadecimal string from a MessageDigest, a DigestInputStream, or a DigestOutputStream.  If the underlying digest implementation implements clone, a clone will be created before extracting the digest to avoid resetting it.
   
    Signed-off-by: Simon Spero <[hidden email]>

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