lycan/onionr-blocks.js

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2020-10-07 22:46:13 +00:00
/*
hush-hush: anonymous message board using the onionr network
Copyright (C) 2020 Kevin Froman
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
function reconstructHash(hash){
return hash.padStart(64, 0)
}
function verifyBlock(raw, hash){
var encoder = new TextEncoder("utf-8")
hash = reconstructHash(hash)
if (doHashHex(encoder.encode(raw)) != hash){
throw new Error("Hash does not match")
}
}
2020-10-05 08:42:20 +00:00
function verifyTime(time){
let epoch = Math.round(Date.now() / 1000);
if ((epoch - time) > maxBlockAge){
throw new Error("Block is too old")
}
}