diff options
Diffstat (limited to 'vnfmarket/src/main/webapp/vnfmarket/node_modules/ecc-jsbn/index.js')
-rw-r--r-- | vnfmarket/src/main/webapp/vnfmarket/node_modules/ecc-jsbn/index.js | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/vnfmarket/src/main/webapp/vnfmarket/node_modules/ecc-jsbn/index.js b/vnfmarket/src/main/webapp/vnfmarket/node_modules/ecc-jsbn/index.js new file mode 100644 index 00000000..24372810 --- /dev/null +++ b/vnfmarket/src/main/webapp/vnfmarket/node_modules/ecc-jsbn/index.js @@ -0,0 +1,57 @@ +var crypto = require("crypto"); +var BigInteger = require("jsbn").BigInteger; +var ECPointFp = require("./lib/ec.js").ECPointFp; +exports.ECCurves = require("./lib/sec.js"); + +// zero prepad +function unstupid(hex,len) +{ + return (hex.length >= len) ? hex : unstupid("0"+hex,len); +} + +exports.ECKey = function(curve, key, isPublic) +{ + var priv; + var c = curve(); + var n = c.getN(); + var bytes = Math.floor(n.bitLength()/8); + + if(key) + { + if(isPublic) + { + var curve = c.getCurve(); +// var x = key.slice(1,bytes+1); // skip the 04 for uncompressed format +// var y = key.slice(bytes+1); +// this.P = new ECPointFp(curve, +// curve.fromBigInteger(new BigInteger(x.toString("hex"), 16)), +// curve.fromBigInteger(new BigInteger(y.toString("hex"), 16))); + this.P = curve.decodePointHex(key.toString("hex")); + }else{ + if(key.length != bytes) return false; + priv = new BigInteger(key.toString("hex"), 16); + } + }else{ + var n1 = n.subtract(BigInteger.ONE); + var r = new BigInteger(crypto.randomBytes(n.bitLength())); + priv = r.mod(n1).add(BigInteger.ONE); + this.P = c.getG().multiply(priv); + } + if(this.P) + { +// var pubhex = unstupid(this.P.getX().toBigInteger().toString(16),bytes*2)+unstupid(this.P.getY().toBigInteger().toString(16),bytes*2); +// this.PublicKey = new Buffer("04"+pubhex,"hex"); + this.PublicKey = new Buffer(c.getCurve().encodeCompressedPointHex(this.P),"hex"); + } + if(priv) + { + this.PrivateKey = new Buffer(unstupid(priv.toString(16),bytes*2),"hex"); + this.deriveSharedSecret = function(key) + { + if(!key || !key.P) return false; + var S = key.P.multiply(priv); + return new Buffer(unstupid(S.getX().toBigInteger().toString(16),bytes*2),"hex"); + } + } +} + |