-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 jBCrypt security advisory ========================= jBCrypt is a Java implementation of OpenBSD's Blowfish password hashing algorithm, as described in "A Future-Adaptable Password Scheme" by Niels Provos and David Mazieres (USENIX, 1999). Versions of jBCrypt before 0.3 suffered from a bug related to character encoding that substantially reduced the entropy of hashed passwords containing non US-ASCII characters. An incorrect encoding step transparently replaced such characters by '?' prior to hashing. In the worst case of a password consisting solely of non-US-ASCII characters, this would cause its hash to be equivalent to all other such passwords of the same length. jBCrypt-0.3, available from http://www.mindrot.org/projects/jBCrypt/ fixes this bug. Please note that passwords containing international characters that were hashed using a previous version of jBCrypt will not verify using jBCrypt-0.3. This may necessitate re-hashing of such passwords. This bug was responsibly disclosed by Aliaksandr Radzivanovich. Damien Miller February 1, 2010 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (OpenBSD) iD8DBQFLZjRjzo7LA4b/nEgRAlz9AJ9gBiRpX5UulfKIkaKthmG00dOxKgCdFYt6 pFhxXEcnqmWIeuo1ykT4nl4= =WKbk -----END PGP SIGNATURE-----