Removes curveFpDecodePointHex
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2 changed files with 1 additions and 27 deletions
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@ -283,38 +283,12 @@ function curveFpFromBigInteger(x) {
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return new ECFieldElementFp(this.q, x);
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return new ECFieldElementFp(this.q, x);
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}
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}
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// for now, work with hex strings because they're easier in JS
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function curveFpDecodePointHex(s) {
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switch(parseInt(s.substr(0,2), 16)) { // first byte
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case 0:
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return this.infinity;
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case 2:
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case 3:
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// point compression not supported yet
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return null;
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case 4:
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case 6:
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case 7:
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var len = (s.length - 2) / 2;
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var xHex = s.substr(2, len);
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var yHex = s.substr(len+2, len);
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return new ECPointFp(this,
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this.fromBigInteger(new BigInteger(xHex, 16)),
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this.fromBigInteger(new BigInteger(yHex, 16)));
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default: // unsupported
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return null;
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}
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}
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ECCurveFp.prototype.getQ = curveFpGetQ;
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ECCurveFp.prototype.getQ = curveFpGetQ;
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ECCurveFp.prototype.getA = curveFpGetA;
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ECCurveFp.prototype.getA = curveFpGetA;
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ECCurveFp.prototype.getB = curveFpGetB;
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ECCurveFp.prototype.getB = curveFpGetB;
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ECCurveFp.prototype.equals = curveFpEquals;
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ECCurveFp.prototype.equals = curveFpEquals;
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ECCurveFp.prototype.getInfinity = curveFpGetInfinity;
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ECCurveFp.prototype.getInfinity = curveFpGetInfinity;
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ECCurveFp.prototype.fromBigInteger = curveFpFromBigInteger;
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ECCurveFp.prototype.fromBigInteger = curveFpFromBigInteger;
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ECCurveFp.prototype.decodePointHex = curveFpDecodePointHex;
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// prepends 0 if bytes < len
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// prepends 0 if bytes < len
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// cuts off start if bytes > len
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// cuts off start if bytes > len
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@ -185,7 +185,7 @@ function secp256r1() {
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var curve = new ECCurveFp(p, a, b);
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var curve = new ECCurveFp(p, a, b);
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var x = fromHex("6B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C296")
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var x = fromHex("6B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C296")
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var y = fromHex("4FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5")
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var y = fromHex("4FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5")
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var G = new ECPointFp(curve,
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var G = new ECPointFp(curve,
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curve.fromBigInteger(x),
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curve.fromBigInteger(x),
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curve.fromBigInteger(y))
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curve.fromBigInteger(y))
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