ChristopherSchultz edited a comment on pull request #336:
URL: https://github.com/apache/tomcat/pull/336#issuecomment-670585072
While the documentation may have been misleading, the implementation was
correct: the stored credential is a literal `{SSHA}` +
`base64(concat(sha1(concat(password, salt)), salt)`. I'm not sure this "fixes"
anything; maybe it just adds another implementation.
The salt length is not fixed at 20 characters. Tomcat doesn't generate new
stored-credentials, so the salt for a `{SSHA}`-encoded credential is whatever
is left over after the 20 bytes of the SHA1 hash has been removed from the
front of the credential. (This is why the salt is somewhat confusingly placed
at the end of the stored-credential.)
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