-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dear Bitcoin developers,
We would like to report a vulnerability which might lead, under some assumptions, to a double-spending attack in a fast payment scenario. The vulnerability has been introduced due to signature encoding incompatibilities between versions 0.8.2 (or 0.8.3) and earlier Bitcoin versions. Please find at the following link a detailed description of this vulnerability: ftp://ftp.inf.ethz.ch/pub/publications/tech-reports/7xx/789.pdf We contacted and informed Gavin earlier about this problem. With best regards, Arthur Gervais -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.18 (Darwin) Comment: GPGTools - http://gpgtools.org iQEcBAEBAgAGBQJRzBKLAAoJEI2AYXeasI8/eNYH/2b45o8JPjuiOXeE0MgiYO4g HgGorNBvH3hLlSZkGh/7GxeGWi3tiEq8DKAgqFd8p+1Ay4YVHK86jJMBxAc8lzpx TqS6Szrhlx7slamMGhjeem4BJ2RmfVqSRQjidYxwdee8bMQRVH5DiBzndpZwCeHa AvlP8ojTUFozOJs5PvjEqE+sDKDe5nDC96uiZyMROK8neoiLZpJzV3+ScTUjLCeB zg34wttX80WKpkXJFvq88FTIvO5E42NGP3APnt2J/HZcey4Mi9UIhLt+/TJ7Z07l HuxFlzyXdCgRkJWvU13yn8bUP0cbeoox6Cwn7rDAIisVLn4KB9XPThPjfJbKEkg= =Y6bs -----END PGP SIGNATURE----- ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
