CODEC-224 Add methods to DigestUtils to generate hex from MessageDigests et al. by sesuncedu · Pull Request #7 · apache/commons-codec (original) (raw)

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 sesuncedu@gmail.com