From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sog-mx-3.v43.ch3.sourceforge.com ([172.29.43.193] helo=mx.sourceforge.net) by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1RY2Yz-0003xO-7i for bitcoin-development@lists.sourceforge.net; Tue, 06 Dec 2011 21:28:33 +0000 X-ACL-Warn: Received: from zinan.dashjr.org ([173.242.112.54]) by sog-mx-3.v43.ch3.sourceforge.com with esmtp (Exim 4.76) id 1RY2Yw-0001Fm-1o for bitcoin-development@lists.sourceforge.net; Tue, 06 Dec 2011 21:28:33 +0000 Received: from ishibashi.localnet (fl-184-4-160-40.dhcp.embarqhsd.net [184.4.160.40]) (Authenticated sender: luke-jr) by zinan.dashjr.org (Postfix) with ESMTPSA id EA5052042A8 for ; Tue, 6 Dec 2011 21:28:22 +0000 (UTC) From: "Luke-Jr" To: bitcoin-development@lists.sourceforge.net Date: Tue, 6 Dec 2011 16:28:16 -0500 User-Agent: KMail/1.13.7 (Linux/3.1.0-gentoo; KDE/4.6.5; x86_64; ; ) References: <201112061610.41083.luke@dashjr.org> In-Reply-To: <201112061610.41083.luke@dashjr.org> X-PGP-Key-Fingerprint: CE5A D56A 36CC 69FA E7D2 3558 665F C11D D53E 9583 X-PGP-Key-ID: 665FC11DD53E9583 X-PGP-Keyserver: x-hkp://subkeys.pgp.net MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201112061628.18634.luke@dashjr.org> X-Spam-Score: -1.2 (-) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -1.2 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 AWL AWL: From: address is in the auto white-list X-Headers-End: 1RY2Yw-0001Fm-1o Subject: Re: [Bitcoin-development] Version bytes "2.0" X-BeenThere: bitcoin-development@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 06 Dec 2011 21:28:33 -0000 Some bugs I found in my spec so far: - Bitcoin public keys begin with '2' (same as testnet data) - For the first first-class "aux" network, signatures and private keys will start with the same character. - More "collisions" are possible if the "reserved" values were ever assigned. To address these slightly better, here's a revised proposal: * Bits 128/64 define network class ** 0 = main network ** 64,128 = reserved ** 192 = test network * Bits 32/16 define network ** 0 = Bitcoin ** 16,32 = reserved ** 48 = OTHER (next octet) * Bits 8/4/2 define data class ** 0 = Public key hash ** 2 = reserved ** 4 = Script hash ** 6 = Public key (raw) ** 8 = Signature ** 10 = reserved ** 12 = Private key (raw) ** 14 = OTHER (next octet) * Bit 1 is freely chosen (for aesthetic assignment) Note that under this scheme, both script hashes and raw public keys begin with '3'; I consider this a non-issue since neither are supported by current- generation clients, and both pubkey-hash and script-hash are quite capable of the same functionality as a raw public key. Also, the raw public key will presumably be noticably longer. For reference, a table of version number to first-base58-char mappings: +........ 0 => 1 -.......1 1 => QRSTUVWXYZabcdefghijkmno -......1. 2 => 2opqrstuvwxyz +......11 3 => 2 -.....1.. 4 => 23 +.....1.1 5 => 3 +.....11. 6 => 3 -.....111 7 => 34 +....1... 8 => 4 -....1..1 9 => 45 +....1.1. 10 => 5 +....1.11 11 => 5 -....11.. 12 => 56 +....11.1 13 => 6 -....111. 14 => 67 +....1111 15 => 7 +...1.... 16 => 7 -...1...1 17 => 78 +...1..1. 18 => 8 -...1..11 19 => 89 +...1.1.. 20 => 9 +...1.1.1 21 => 9 -...1.11. 22 => 9A +...1.111 23 => A -...11... 24 => AB +...11..1 25 => B +...11.1. 26 => B -...11.11 27 => BC +...111.. 28 => C -...111.1 29 => CD +...1111. 30 => D +...11111 31 => D -..1..... 32 => DE +..1....1 33 => E -..1...1. 34 => EF +..1...11 35 => F +..1..1.. 36 => F -..1..1.1 37 => FG +..1..11. 38 => G -..1..111 39 => GH +..1.1... 40 => H +..1.1..1 41 => H -..1.1.1. 42 => HJ +..1.1.11 43 => J -..1.11.. 44 => JK +..1.11.1 45 => K +..1.111. 46 => K -..1.1111 47 => KL +..11.... 48 => L -..11...1 49 => LM +..11..1. 50 => M +..11..11 51 => M -..11.1.. 52 => MN +..11.1.1 53 => N -..11.11. 54 => NP +..11.111 55 => P +..111... 56 => P -..111..1 57 => PQ +..111.1. 58 => Q -..111.11 59 => QR +..1111.. 60 => R +..1111.1 61 => R -..11111. 62 => RS +..111111 63 => S -.1...... 64 => ST +.1.....1 65 => T +.1....1. 66 => T -.1....11 67 => TU +.1...1.. 68 => U -.1...1.1 69 => UV +.1...11. 70 => V +.1...111 71 => V -.1..1... 72 => VW +.1..1..1 73 => W -.1..1.1. 74 => WX +.1..1.11 75 => X +.1..11.. 76 => X -.1..11.1 77 => XY +.1..111. 78 => Y -.1..1111 79 => YZ +.1.1.... 80 => Z +.1.1...1 81 => Z -.1.1..1. 82 => Za +.1.1..11 83 => a -.1.1.1.. 84 => ab +.1.1.1.1 85 => b -.1.1.11. 86 => bc +.1.1.111 87 => c +.1.11... 88 => c -.1.11..1 89 => cd +.1.11.1. 90 => d -.1.11.11 91 => de +.1.111.. 92 => e +.1.111.1 93 => e -.1.1111. 94 => ef +.1.11111 95 => f -.11..... 96 => fg +.11....1 97 => g +.11...1. 98 => g -.11...11 99 => gh +.11..1.. 100 => h -.11..1.1 101 => hi +.11..11. 102 => i +.11..111 103 => i -.11.1... 104 => ij +.11.1..1 105 => j -.11.1.1. 106 => jk +.11.1.11 107 => k +.11.11.. 108 => k -.11.11.1 109 => km +.11.111. 110 => m -.11.1111 111 => mn +.111.... 112 => n +.111...1 113 => n -.111..1. 114 => no +.111..11 115 => o -.111.1.. 116 => op +.111.1.1 117 => p +.111.11. 118 => p -.111.111 119 => pq +.1111... 120 => q -.1111..1 121 => qr +.1111.1. 122 => r +.1111.11 123 => r -.11111.. 124 => rs +.11111.1 125 => s -.111111. 126 => st +.1111111 127 => t +1....... 128 => t -1......1 129 => tu +1.....1. 130 => u -1.....11 131 => uv +1....1.. 132 => v +1....1.1 133 => v -1....11. 134 => vw +1....111 135 => w -1...1... 136 => wx +1...1..1 137 => x +1...1.1. 138 => x -1...1.11 139 => xy +1...11.. 140 => y -1...11.1 141 => yz +1...111. 142 => z +1...1111 143 => z -1..1.... 144 => 2z +1..1...1 145 => 2 +1..1..1. 146 => 2 +1..1..11 147 => 2 +1..1.1.. 148 => 2 +1..1.1.1 149 => 2 +1..1.11. 150 => 2 +1..1.111 151 => 2 +1..11... 152 => 2 +1..11..1 153 => 2 +1..11.1. 154 => 2 +1..11.11 155 => 2 +1..111.. 156 => 2 +1..111.1 157 => 2 +1..1111. 158 => 2 +1..11111 159 => 2 +1.1..... 160 => 2 +1.1....1 161 => 2 +1.1...1. 162 => 2 +1.1...11 163 => 2 +1.1..1.. 164 => 2 +1.1..1.1 165 => 2 +1.1..11. 166 => 2 +1.1..111 167 => 2 +1.1.1... 168 => 2 +1.1.1..1 169 => 2 +1.1.1.1. 170 => 2 +1.1.1.11 171 => 2 +1.1.11.. 172 => 2 +1.1.11.1 173 => 2 +1.1.111. 174 => 2 +1.1.1111 175 => 2 +1.11.... 176 => 2 +1.11...1 177 => 2 +1.11..1. 178 => 2 +1.11..11 179 => 2 +1.11.1.. 180 => 2 +1.11.1.1 181 => 2 +1.11.11. 182 => 2 +1.11.111 183 => 2 +1.111... 184 => 2 +1.111..1 185 => 2 +1.111.1. 186 => 2 +1.111.11 187 => 2 +1.1111.. 188 => 2 +1.1111.1 189 => 2 +1.11111. 190 => 2 +1.111111 191 => 2 +11...... 192 => 2 +11.....1 193 => 2 +11....1. 194 => 2 +11....11 195 => 2 +11...1.. 196 => 2 +11...1.1 197 => 2 +11...11. 198 => 2 +11...111 199 => 2 +11..1... 200 => 2 +11..1..1 201 => 2 +11..1.1. 202 => 2 +11..1.11 203 => 2 +11..11.. 204 => 2 +11..11.1 205 => 2 +11..111. 206 => 2 +11..1111 207 => 2 +11.1.... 208 => 2 +11.1...1 209 => 2 +11.1..1. 210 => 2 +11.1..11 211 => 2 +11.1.1.. 212 => 2 +11.1.1.1 213 => 2 +11.1.11. 214 => 2 +11.1.111 215 => 2 +11.11... 216 => 2 +11.11..1 217 => 2 +11.11.1. 218 => 2 +11.11.11 219 => 2 +11.111.. 220 => 2 +11.111.1 221 => 2 +11.1111. 222 => 2 +11.11111 223 => 2 +111..... 224 => 2 +111....1 225 => 2 +111...1. 226 => 2 +111...11 227 => 2 +111..1.. 228 => 2 +111..1.1 229 => 2 +111..11. 230 => 2 +111..111 231 => 2 +111.1... 232 => 2 +111.1..1 233 => 2 +111.1.1. 234 => 2 +111.1.11 235 => 2 +111.11.. 236 => 2 +111.11.1 237 => 2 +111.111. 238 => 2 +111.1111 239 => 2 +1111.... 240 => 2 +1111...1 241 => 2 +1111..1. 242 => 2 +1111..11 243 => 2 +1111.1.. 244 => 2 +1111.1.1 245 => 2 +1111.11. 246 => 2 +1111.111 247 => 2 +11111... 248 => 2 +11111..1 249 => 2 +11111.1. 250 => 2 +11111.11 251 => 2 +111111.. 252 => 2 +111111.1 253 => 2 +1111111. 254 => 2 +11111111 255 => 2