From 82aadaf46fc8eea566db31a9ae4858dd0a5229b1 Mon Sep 17 00:00:00 2001
From: Robert Martin-Legene <robert@nic.ar>
Date: Tue, 31 Jul 2018 11:06:54 -0300
Subject: [PATCH] bytes32 would have worked if we sent a binary string, but
uint256 seems much more friendly. We also now accept an array of uint256s for
put'ing.
---
src/contract.TimeStampAuthority.sol | 21 +++++++++++++--------
1 file changed, 13 insertions(+), 8 deletions(-)
diff --git a/src/contract.TimeStampAuthority.sol b/src/contract.TimeStampAuthority.sol
index 8b4c4e6..2282493 100644
--- a/src/contract.TimeStampAuthority.sol
+++ b/src/contract.TimeStampAuthority.sol
@@ -5,17 +5,22 @@ pragma solidity ^0.4.24;
contract TimeStampAuthority {
// This mapping is almost an "associative array"
- mapping (bytes32 => uint) private hashes;
+ mapping (uint256 => uint) private hashstore;
- // Stores the hash of the document in the mapping
- function put( bytes32 hash ) public {
- require( hashes[hash] == 0, "That checksum has already been stored." );
- hashes[hash] = block.number;
+ // Stores hashes (256 bit uint) of a document in the mapping
+ function put( uint256[] hasharray ) public {
+ uint256 i = hasharray.length;
+ while (i>0) {
+ i--;
+ uint256 h = hasharray[i];
+ if (hashstore[h] == 0) {
+ hashstore[h] = block.number;
+ }
+ }
}
// Returns the block number in which the hash was first seen
- function get( bytes32 hash ) public view returns (uint) {
- require( hashes[hash] != 0, "That checksum has never been stored." );
- return hashes[hash];
+ function get( uint256 hash ) public view returns (uint) {
+ return hashstore[hash];
}
}
--
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