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sign function complete

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This commit is contained in:
Abhishek Sinha 2018-10-06 21:26:27 +05:30
parent 34c9e94365
commit 9481074f0c
3 changed files with 268 additions and 8 deletions
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3
.gitignore vendored
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@ -2,4 +2,5 @@ examples.mk
json-rpc/
supernode/websocket_chat
supernode/floaddress.org.html
supernode/Makefile
supernode/Makefile
list.txt

196
supernode/ecdsa.html Normal file
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@ -0,0 +1,196 @@
<html lang="en">
<head>
<meta charset="UTF-8">
<title>WebCrypto API Demo: ECDSA Generate Keys Sign Verify Message </title>
<script type="text/javascript">
var privateKey;
var publicKey;
var iv;
function asciiToUint8Array(str) {
var chars = [];
for (var i = 0; i < str.length; ++i)
chars.push(str.charCodeAt(i));
return new Uint8Array(chars);
}
function ECDSA_Sign() {
var cryptoObj = window.crypto || window.msCrypto;
if(!cryptoObj)
{
alert("Crypto API is not supported by the Browser");
return;
}
var plainText = document.getElementById("plainText").value;
var curve = document.getElementById("curve").value;
window.crypto.subtle.generateKey({
name: "ECDSA",
namedCurve: curve, //can be "P-256", "P-384", or "P-521"
},
true, //whether the key is extractable (i.e. can be used in exportKey)
["sign", "verify"] //can be any combination of "sign" and "verify"
)
.then(function(key) {
publicKey = key.publicKey;
privateKey = key.privateKey;
// For Demo Purpos Only Exported in JWK format
window.crypto.subtle.exportKey("jwk", key.publicKey).then(
function(keydata) {
publicKeyhold = keydata;
publicKeyJson = JSON.stringify(publicKeyhold);
document.getElementById("ecdsapublic").value = publicKeyJson;
}
);
window.crypto.subtle.exportKey("jwk", key.privateKey).then(
function(keydata) {
privateKeyhold = keydata;
privateKeyJson = JSON.stringify(privateKeyhold);
document.getElementById("ecdsaprivate").value = privateKeyJson;
}
);
window.crypto.subtle.sign({
name: "ECDSA",
hash: {
name: "SHA-256"
}, //can be "SHA-1", "SHA-256", "SHA-384", or "SHA-512"
},
privateKey, //from generateKey or importKey above
asciiToUint8Array(plainText) //ArrayBuffer of data you want to sign
)
.then(function(signature) {
//returns an ArrayBuffer containing the signature
document.getElementById("cipherText").value = bytesToHexString(signature);
})
.catch(function(err) {
console.error(err);
});
})
.catch(function(err) {
console.error(err);
});
}
function ECDSA_Verify() {
var cryptoObj = window.crypto || window.msCrypto;
if(!cryptoObj)
{
alert("Crypto API is not supported by the Browser");
return;
}
var cipherText = document.getElementById("cipherText").value;
var plainText = document.getElementById("plainText").value;
if(!publicKey)
{
alert("Generate ECDSA Keys First")
return;
}
window.crypto.subtle.verify({
name: "ECDSA",
hash: {name: "SHA-256"}, //can be "SHA-1", "SHA-256", "SHA-384", or "SHA-512"
},
publicKey, //from generateKey or importKey above
hexStringToUint8Array(cipherText), //ArrayBuffer of the data
asciiToUint8Array(plainText)
)
.then(function(decrypted) {
alert("Verified " + decrypted);
})
.catch(function(err) {
console.error(err);
});
}
function bytesToASCIIString(bytes) {
return String.fromCharCode.apply(null, new Uint8Array(bytes));
}
function bytesToHexString(bytes) {
if (!bytes)
return null;
bytes = new Uint8Array(bytes);
var hexBytes = [];
for (var i = 0; i < bytes.length; ++i) {
var byteString = bytes[i].toString(16);
if (byteString.length < 2)
byteString = "0" + byteString;
hexBytes.push(byteString);
}
return hexBytes.join("");
}
function hexStringToUint8Array(hexString) {
if (hexString.length % 2 != 0)
throw "Invalid hexString";
var arrayBuffer = new Uint8Array(hexString.length / 2);
for (var i = 0; i < hexString.length; i += 2) {
var byteValue = parseInt(hexString.substr(i, 2), 16);
if (byteValue == NaN)
throw "Invalid hexString";
arrayBuffer[i / 2] = byteValue;
}
return arrayBuffer;
}
function failAndLog(error) {
console.log(error);
}
</script>
</head>
<body>
<h1>Generate ECDSA Public Private Keys and perform Sign and Verify Message </h1>
<div>
Named Curve <select name="curve" id="curve">
<option value="P-256">P-256</option>
<option value="P-384">P-384</option>
<option value="P-521">P-521</option>
</select>
Input Text to Signed<input type="text" name="plainText" value="Hello 8gwifi" id="plainText">
<button type="button" onclick="ECDSA_Sign()">Generate ECDSA keys and Perform Sign </button>
<button type="button" onclick="ECDSA_Verify()">Verify ECDSA Signature </button>
</div>
<div>
Signature Output (Hex) <input type="text" size="30" name="cipherText" id="cipherText" readonly="true"><br>
ECDSA Public Key (JWK) : <textarea name="ecdsapublic" id="ecdsapublic" cols="30" rows="10"> </textarea><br>
ECDSA Private Key (JWK): <textarea name="ecdsaprivate" id="ecdsaprivate" cols="30" rows="10"></textarea>
</div>
<br> Thanks for downloading the code, if you like it Support <a href="8gwifi.org">8gwifi.org </a> By purchasing The Modern Cryptography Cookbook
<iframe width='160' height='400' src='https://leanpub.com/crypto/embed' frameborder='0' allowtransparency='true'></iframe>
</body>
</html>

77
supernode/main.html
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@ -38,8 +38,6 @@
</div>
</div>
<script type="text/javascript">
if (typeof Crypto == "undefined" || !Crypto.util) {
(function () {
@ -5671,7 +5669,7 @@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLI
</script>
<script type="text/javascript">
//https://raw.github.com/bitcoinjs/bitcoinjs-lib/e90780d3d3b8fc0d027d2bcb38b80479902f223e/src/ecdsa.js
Bitcoin.ECDSA = (function () {
Bitcoin.ECDSA = (function (ec) {
var ecparams = EllipticCurve.getSECCurveByName("secp256k1");
var rng = new SecureRandom();
@ -5719,6 +5717,7 @@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLI
var G = ecparams.getG();
var Q = G.multiply(k);
var r = Q.getX().toBigInteger().mod(n);
} while (r.compareTo(BigInteger.ZERO) <= 0);
var s = k.modInverse(n).multiply(e.add(d.multiply(r))).mod(n);
@ -5738,17 +5737,22 @@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLI
} else {
throw "Invalid value for signature";
}
console.log(hash);
console.log(sig);
console.log("pubkey instanceof ec.PointFp: ", pubkey instanceof ec.PointFp);
console.log("Bitcoin.Util.isArray(pubkey): ", Bitcoin.Util.isArray(pubkey));
var Q;
if (pubkey instanceof ec.PointFp) {
Q = pubkey;
} else if (Bitcoin.Util.isArray(pubkey)) {
Q = pubkey;
} else
if (Bitcoin.Util.isArray(pubkey)) {
Q = EllipticCurve.PointFp.decodeFrom(ecparams.getCurve(), pubkey);
} else {
throw "Invalid format for pubkey value, must be byte array or ec.PointFp";
}
var e = BigInteger.fromByteArrayUnsigned(hash);
return ECDSA.verifyRaw(e, r, s, Q);
},
@ -5777,6 +5781,9 @@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLI
var v = point.getX().toBigInteger().mod(n);
console.log(v);
console.log(r);
return v.equals(r);
},
@ -5959,7 +5966,7 @@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLI
};
return ECDSA;
})();
})(window.EllipticCurve);
</script>
<script type="text/javascript">
Bitcoin.KeyPool = (function () {
@ -7648,6 +7655,62 @@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLI
})(ninja.wallets, ninja.qrCode);
</script>
<script>
(function (wallets) {
var signing = wallets.flowallet = {
bigInt: function (data) {
var BI = new BigInteger(data);
return BI;
},
generateFloKeys: function () {
var key = new Bitcoin.ECKey(false);
key.setCompressed(true);
var bitcoinAddress = key.getBitcoinAddress();
var privateKeyWif = key.getBitcoinWalletImportFormat();
var privateKey = key.getBitcoinHexFormat();
var publicKey = key.getPubKeyHex();
var publicKeyECPoint = key.getPubPoint(); // Return public point as ECPoint object.
console.log("bitcoinAddress", bitcoinAddress);
console.log("privateKeyWif", privateKeyWif);
console.log("publicKey", publicKey);
var ms = "hello";
var signn = this.sign(ms, privateKeyWif);
var veri = this.verify(ms, signn, publicKey);
console.log(veri);
},
sign: function (msg, privateKey) {
var msgHash = Crypto.SHA256(msg);
var msgHashBI = this.bigInt(msgHash);
var privateKeyHashBI = this.bigInt(privateKey);
var signature = new Bitcoin.ECDSA.sign(msgHashBI, privateKeyHashBI);
//return signature;
console.log(Crypto.util.bytesToHex(signature));
return Crypto.util.bytesToHex(signature);
},
verify: function (msg, signature, publicKey) {
var msgHash = Crypto.SHA256(msg);
var msgHashBI = this.bigInt(msgHash);
//var msgHashBI = Crypto.util.hexToBytes(msgHash);
var signatureBI = Crypto.util.hexToBytes(signature);
//var signatureBI = this.bigInt(signature);
//console.log(signatureBI);
//var publicKeyBI = this.bigInt(publicKey);
var publicKeyBI = Crypto.util.hexToBytes(publicKey);
var verification = new Bitcoin.ECDSA.verify(msgHashBI, signatureBI, publicKeyBI);
return verification;
}
}
})(ninja.wallets)
</script>
</body>