Merge pull request #92 from bip39JP/master

BIP0039 Added Japanese wordlist

bip-0039.mediawiki

@@ -111,12 +111,16 @@ will make the desired wallet available.
 
 ==Wordlists==
 
-* [[bip-0039/english.txt|English]]
+* [[bip-0039/bip-0039-wordlists.md|Moved to separate document]]
 
 ==Test vectors==
 
 See https://github.com/trezor/python-mnemonic/blob/master/vectors.json
 
+Also see https://github.com/bip32JP/bip32JP.github.io/blob/master/test_JP_BIP39.json
+
+(Japanese wordlist test with heavily normalized symbols as passphrase)
+
 ==Reference Implementation==
 
 Reference implementation including wordlists is available from

bip-0039/bip-0039-wordlists.md

@@ -0,0 +1,17 @@
+#Wordlists
+
+* [English](english.txt)
+* [Japanese](japanese.txt)
+
+##Wordlists (Special Considerations)
+
+###Japanese
+
+1. Users will most likely separate the words with UTF-8 ideographic space.  
+(UTF-8 bytes: 0xE38080) When generating the seed, normalization as per the spec will
+automatically change these into normal ASCII spaces. Depending on the font, displaying the
+words should use the UTF-8 ideographic space if it looks like the symbols are too close.
+
+2. Word-wrapping doesn't work well, so making sure that words only word-wrap at one of the  
+ideographic spaces may be a necessary step. As a long word split in two could be mistaken easily  
+for two smaller words (This would be a problem with any of the 3 character sets in Japanese)