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							170 lines
						
					
					
						
							6.0 KiB
						
					
					
				
			
		
		
	
	
							170 lines
						
					
					
						
							6.0 KiB
						
					
					
				// Named EC curves | 
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// Requires ec.js, jsbn.js, and jsbn2.js | 
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var BigInteger = require('jsbn').BigInteger | 
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var ECCurveFp = require('./ec.js').ECCurveFp | 
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// ---------------- | 
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// X9ECParameters | 
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 | 
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// constructor | 
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function X9ECParameters(curve,g,n,h) { | 
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    this.curve = curve; | 
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    this.g = g; | 
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    this.n = n; | 
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    this.h = h; | 
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} | 
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 | 
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function x9getCurve() { | 
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    return this.curve; | 
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} | 
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 | 
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function x9getG() { | 
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    return this.g; | 
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} | 
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 | 
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function x9getN() { | 
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    return this.n; | 
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} | 
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 | 
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function x9getH() { | 
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    return this.h; | 
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} | 
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 | 
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X9ECParameters.prototype.getCurve = x9getCurve; | 
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X9ECParameters.prototype.getG = x9getG; | 
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X9ECParameters.prototype.getN = x9getN; | 
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X9ECParameters.prototype.getH = x9getH; | 
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// ---------------- | 
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// SECNamedCurves | 
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 | 
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function fromHex(s) { return new BigInteger(s, 16); } | 
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 | 
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function secp128r1() { | 
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    // p = 2^128 - 2^97 - 1 | 
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    var p = fromHex("FFFFFFFDFFFFFFFFFFFFFFFFFFFFFFFF"); | 
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    var a = fromHex("FFFFFFFDFFFFFFFFFFFFFFFFFFFFFFFC"); | 
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    var b = fromHex("E87579C11079F43DD824993C2CEE5ED3"); | 
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    //byte[] S = Hex.decode("000E0D4D696E6768756151750CC03A4473D03679"); | 
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    var n = fromHex("FFFFFFFE0000000075A30D1B9038A115"); | 
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    var h = BigInteger.ONE; | 
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    var curve = new ECCurveFp(p, a, b); | 
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    var G = curve.decodePointHex("04" | 
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                + "161FF7528B899B2D0C28607CA52C5B86" | 
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		+ "CF5AC8395BAFEB13C02DA292DDED7A83"); | 
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    return new X9ECParameters(curve, G, n, h); | 
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} | 
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function secp160k1() { | 
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    // p = 2^160 - 2^32 - 2^14 - 2^12 - 2^9 - 2^8 - 2^7 - 2^3 - 2^2 - 1 | 
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    var p = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFAC73"); | 
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    var a = BigInteger.ZERO; | 
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    var b = fromHex("7"); | 
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    //byte[] S = null; | 
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    var n = fromHex("0100000000000000000001B8FA16DFAB9ACA16B6B3"); | 
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    var h = BigInteger.ONE; | 
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    var curve = new ECCurveFp(p, a, b); | 
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    var G = curve.decodePointHex("04" | 
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                + "3B4C382CE37AA192A4019E763036F4F5DD4D7EBB" | 
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                + "938CF935318FDCED6BC28286531733C3F03C4FEE"); | 
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    return new X9ECParameters(curve, G, n, h); | 
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} | 
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function secp160r1() { | 
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    // p = 2^160 - 2^31 - 1 | 
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    var p = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFF"); | 
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    var a = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFC"); | 
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    var b = fromHex("1C97BEFC54BD7A8B65ACF89F81D4D4ADC565FA45"); | 
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    //byte[] S = Hex.decode("1053CDE42C14D696E67687561517533BF3F83345"); | 
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    var n = fromHex("0100000000000000000001F4C8F927AED3CA752257"); | 
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    var h = BigInteger.ONE; | 
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    var curve = new ECCurveFp(p, a, b); | 
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    var G = curve.decodePointHex("04" | 
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		+ "4A96B5688EF573284664698968C38BB913CBFC82" | 
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		+ "23A628553168947D59DCC912042351377AC5FB32"); | 
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    return new X9ECParameters(curve, G, n, h); | 
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} | 
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function secp192k1() { | 
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    // p = 2^192 - 2^32 - 2^12 - 2^8 - 2^7 - 2^6 - 2^3 - 1 | 
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    var p = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFEE37"); | 
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    var a = BigInteger.ZERO; | 
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    var b = fromHex("3"); | 
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    //byte[] S = null; | 
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    var n = fromHex("FFFFFFFFFFFFFFFFFFFFFFFE26F2FC170F69466A74DEFD8D"); | 
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    var h = BigInteger.ONE; | 
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    var curve = new ECCurveFp(p, a, b); | 
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    var G = curve.decodePointHex("04" | 
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                + "DB4FF10EC057E9AE26B07D0280B7F4341DA5D1B1EAE06C7D" | 
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                + "9B2F2F6D9C5628A7844163D015BE86344082AA88D95E2F9D"); | 
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    return new X9ECParameters(curve, G, n, h); | 
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} | 
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function secp192r1() { | 
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    // p = 2^192 - 2^64 - 1 | 
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    var p = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF"); | 
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    var a = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFC"); | 
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    var b = fromHex("64210519E59C80E70FA7E9AB72243049FEB8DEECC146B9B1"); | 
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    //byte[] S = Hex.decode("3045AE6FC8422F64ED579528D38120EAE12196D5"); | 
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    var n = fromHex("FFFFFFFFFFFFFFFFFFFFFFFF99DEF836146BC9B1B4D22831"); | 
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    var h = BigInteger.ONE; | 
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    var curve = new ECCurveFp(p, a, b); | 
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    var G = curve.decodePointHex("04" | 
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                + "188DA80EB03090F67CBF20EB43A18800F4FF0AFD82FF1012" | 
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                + "07192B95FFC8DA78631011ED6B24CDD573F977A11E794811"); | 
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    return new X9ECParameters(curve, G, n, h); | 
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} | 
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function secp224r1() { | 
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    // p = 2^224 - 2^96 + 1 | 
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    var p = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001"); | 
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    var a = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFE"); | 
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    var b = fromHex("B4050A850C04B3ABF54132565044B0B7D7BFD8BA270B39432355FFB4"); | 
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    //byte[] S = Hex.decode("BD71344799D5C7FCDC45B59FA3B9AB8F6A948BC5"); | 
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    var n = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFF16A2E0B8F03E13DD29455C5C2A3D"); | 
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    var h = BigInteger.ONE; | 
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    var curve = new ECCurveFp(p, a, b); | 
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    var G = curve.decodePointHex("04" | 
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                + "B70E0CBD6BB4BF7F321390B94A03C1D356C21122343280D6115C1D21" | 
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                + "BD376388B5F723FB4C22DFE6CD4375A05A07476444D5819985007E34"); | 
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    return new X9ECParameters(curve, G, n, h); | 
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} | 
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function secp256r1() { | 
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    // p = 2^224 (2^32 - 1) + 2^192 + 2^96 - 1 | 
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    var p = fromHex("FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFF"); | 
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    var a = fromHex("FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFC"); | 
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    var b = fromHex("5AC635D8AA3A93E7B3EBBD55769886BC651D06B0CC53B0F63BCE3C3E27D2604B"); | 
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    //byte[] S = Hex.decode("C49D360886E704936A6678E1139D26B7819F7E90"); | 
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    var n = fromHex("FFFFFFFF00000000FFFFFFFFFFFFFFFFBCE6FAADA7179E84F3B9CAC2FC632551"); | 
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    var h = BigInteger.ONE; | 
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    var curve = new ECCurveFp(p, a, b); | 
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    var G = curve.decodePointHex("04" | 
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                + "6B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C296" | 
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		+ "4FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5"); | 
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    return new X9ECParameters(curve, G, n, h); | 
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} | 
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// TODO: make this into a proper hashtable | 
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function getSECCurveByName(name) { | 
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    if(name == "secp128r1") return secp128r1(); | 
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    if(name == "secp160k1") return secp160k1(); | 
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    if(name == "secp160r1") return secp160r1(); | 
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    if(name == "secp192k1") return secp192k1(); | 
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    if(name == "secp192r1") return secp192r1(); | 
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    if(name == "secp224r1") return secp224r1(); | 
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    if(name == "secp256r1") return secp256r1(); | 
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    return null; | 
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} | 
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module.exports = { | 
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  "secp128r1":secp128r1, | 
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  "secp160k1":secp160k1, | 
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  "secp160r1":secp160r1, | 
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  "secp192k1":secp192k1, | 
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  "secp192r1":secp192r1, | 
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  "secp224r1":secp224r1, | 
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  "secp256r1":secp256r1 | 
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}
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