If the user creates a password on an iOS device with an astral character and then can't enter that password on a JVM wallet, that sucks. If JVMs really can't support unicode NFC then that's a strong case to limit the spec to the subset of unicode that all popular platforms can support, but it sounds like it might just be a JVM string library bug that could hopefully be reported and fixed. I get the same result as in the test case using apple's CFStringNormalize(passphrase, kCFStringNormalizationFormC);
Aaron Voisine breadwallet.com On Tue, Jul 15, 2014 at 11:20 AM, Mike Hearn <m...@plan99.net> wrote: > Yes, we know, Andreas' code is indeed doing normalisation. > > However it appears the output bytes end up being different. What I get back > is: > > cf930001303430300166346139 > > vs > > cf9300f0909080f09f92a9 > > from the spec. > > I'm not sure why. It appears this is due to the character from the astral > planes. Java is old and uses 16 bit characters internally - it wouldn't > surprise me if there's some weirdness that means it doesn't/won't support > this kind of thing. > > I recommend instead that any implementation that wishes to be compatible > with JVM based wallets (I suspect Android is the same) just refuse any > passphrase that includes characters outside the BMP. At least unless someone > can find a fix. I somehow doubt this will really hurt anyone. > > ------------------------------------------------------------------------------ > Want fast and easy access to all the code in your enterprise? Index and > search up to 200,000 lines of code with a free copy of Black Duck > Code Sight - the same software that powers the world's largest code > search on Ohloh, the Black Duck Open Hub! Try it now. > http://p.sf.net/sfu/bds > _______________________________________________ > Bitcoin-development mailing list > Bitcoin-development@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bitcoin-development > ------------------------------------------------------------------------------ Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development