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Basics of key split and combine work. Seems to be a problem round tripping between base58 and hex.

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Jeff Weiss 2013-04-06 00:34:43 -04:00
parent da498e4697
commit e38301be98
1 changed files with 86 additions and 12 deletions
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96
bitaddress.org.html
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@ -6317,6 +6317,31 @@
</div> </div>
</div> </div>
<div id="splitarea" class="walletarea">
<div id="splitcommands" class="left commands">
<span><label id="splitlabelenterprivatekey">Enter Private Key (Wallet Import Format)</label>
<input type="text" id="splitprivkey" value="" size="60" onfocus="this.select();" onkeypress="if (event.keyCode == 13) ninja.wallets.splitwallet.splitKey();"> <br/>
<label id="splitlabelshares">Number of shares</label>
<input type="text" id="splitshares" value="4" size="4"/><br/>
<label id="splitlabelthreshhold">Minimum share threshhold needed to combine</label>
<input type="text" id="splitthreshhold" value="2" size="4"/>
</span>
<span><input type="button" id="splitview" value="Split Key" onclick="ninja.wallets.splitwallet.splitKey();"></span>
</div>
<div id="combinecommands" class="left commands">
<span>
<label id="combinelabelentershares">Enter Available Shares (whitespace separated)</label>
<textarea id="combineinput" cols="60" rows="10"/></textarea><br/>
</span>
<span>
<input type="button" id="combineview" value="Combine Shares" onclick="ninja.wallets.splitwallet.combineShares();">
</span>
</div>
</div>
<div id="footer" class="footer"> <div id="footer" class="footer">
<div class="authorbtc"> <div class="authorbtc">
<div> <div>
@ -7454,25 +7479,51 @@
ninja.wallets.singlewallet.generateNewAddressAndKey(); ninja.wallets.singlewallet.generateNewAddressAndKey();
} */ } */
document.getElementById("splitarea").style.display = "block"; document.getElementById("splitarea").style.display = "block";
secrets.setRNG();
secrets.init(3);
}, },
close: function () { close: function () {
document.getElementById("splitarea").style.display = "none"; document.getElementById("splitarea").style.display = "none";
}, },
mkOutputRow: function(s,n) {
var row = document.createElement("span");
var label = document.createElement("label");
label.innerHTML="Share " + (n+1);
var txt = document.createElement("input");
txt.setAttribute("readOnly", true);
txt.setAttribute("value", s);
txt.setAttribute("size", 60);
row.appendChild(label);
row.appendChild(txt);
row.appendChild(document.createElement("br"));
return row;
},
// Split a private key and update information in the HTML // Split a private key and update information in the HTML
splitKey: function () { splitKey: function () {
try { try {
var key = new Bitcoin.ECKey(false); var element = document.getElementById("splitoutput");
var bitcoinAddress = key.getBitcoinAddress(); if (element != null) element.parentNode.removeChild(element);
var privateKeyWif = key.getBitcoinWalletImportFormat();
document.getElementById("btcaddress").innerHTML = bitcoinAddress; var privkeyBase58 = document.getElementById('splitprivkey').value;
document.getElementById("btcprivwif").innerHTML = privateKeyWif; var numshares = parseInt(document.getElementById('splitshares').value);
var keyValuePair = { var threshhold = parseInt(document.getElementById('splitthreshhold').value);
"qrcode_public": bitcoinAddress, //alert(numshares)
"qrcode_private": privateKeyWif //alert(threshhold)
}; var shares = secrets.share(ninja.publicKey.getHexFromByteArray(Bitcoin.Base58.decode(privkeyBase58)),
ninja.qrCode.showQrCode(keyValuePair); numshares, threshhold).map(Crypto.util.hexToBytes).map(Bitcoin.Base58.encode);=
//alert(shares);
var output = document.createElement("div");
output.setAttribute("id", "splitoutput");
for (var i=0; i < shares.length; i++) {
output.appendChild(this.mkOutputRow(shares[i], i));
}
document.getElementById("splitcommands").appendChild(output);
} }
catch (e) { catch (e) {
// browser does not have sufficient JavaScript support to generate a bitcoin address // browser does not have sufficient JavaScript support to generate a bitcoin address
@ -7485,7 +7536,30 @@
}, },
// Combine shares of a private key to retrieve the key // Combine shares of a private key to retrieve the key
combineKey: function () { combineShares: function () {
try{
var element = document.getElementById("combineoutput");
if (element != null) element.parentNode.removeChild(element);
var shares = document.getElementById("combineinput").value.split(/\W+/);
alert(shares);
var combined = secrets.combine(shares.map(Bitcoin.Base58.decode).
map(ninja.publicKey.getHexFromByteArray));
alert(combined);
var privkeyBase58 = Bitcoin.Base58.encode(Crypto.util.hexToBytes(combined));
var output = document.createElement("div");
output.setAttribute("id", "combineoutput");
var txt = document.createElement("input");
txt.setAttribute("id","combineoutputtext");
txt.setAttribute("value",privkeyBase58);
txt.setAttribute("size",55);
output.appendChild(txt);
document.getElementById("combinecommands").appendChild(output);
}
catch (e) {
alert(e);
}
} }
}; };
</script> </script>