122 lines
4.7 KiB
C++
122 lines
4.7 KiB
C++
/***
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Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.
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File: ECCCurves.cpp
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Date: 2021-9-17
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Author: Reece
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***/
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#include <RuntimeInternal.hpp>
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#include "ECC.hpp"
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#include "ECCCurves.hpp"
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#include "ECCGeneric.hpp"
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#include <tomcrypt.h>
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namespace Aurora::Crypto::ECC
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{
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static const ltc_ecc_curve kNistp256 =
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{
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/* prime */ "FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFF",
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/* A */ "FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFC",
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/* B */ "5AC635D8AA3A93E7B3EBBD55769886BC651D06B0CC53B0F63BCE3C3E27D2604B",
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/* order */ "FFFFFFFF00000000FFFFFFFFFFFFFFFFBCE6FAADA7179E84F3B9CAC2FC632551",
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/* Gx */ "6B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C296",
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/* Gy */ "4FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5",
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/* cofactor */ 1,
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/* OID */ "1.2.840.10045.3.1.7"
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};
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static const ltc_ecc_curve kNistp384 =
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{
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/* prime */ "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFF0000000000000000FFFFFFFF",
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/* A */ "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFF0000000000000000FFFFFFFC",
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/* B */ "B3312FA7E23EE7E4988E056BE3F82D19181D9C6EFE8141120314088F5013875AC656398D8A2ED19D2A85C8EDD3EC2AEF",
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/* order */ "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC7634D81F4372DDF581A0DB248B0A77AECEC196ACCC52973",
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/* Gx */ "AA87CA22BE8B05378EB1C71EF320AD746E1D3B628BA79B9859F741E082542A385502F25DBF55296C3A545E3872760AB7",
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/* Gy */ "3617DE4A96262C6F5D9E98BF9292DC29F8F41DBD289A147CE9DA3113B5F0B8C00A60B1CE1D7E819D7A431D7C90EA0E5F",
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/* cofactor */ 1,
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/* OID */ "1.3.132.0.34"
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};
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static const ltc_ecc_curve kNistp521 =
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{
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/* prime */ "01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
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/* A */ "01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC",
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/* B */ "0051953EB9618E1C9A1F929A21A0B68540EEA2DA725B99B315F3B8B489918EF109E156193951EC7E937B1652C0BD3BB1BF073573DF883D2C34F1EF451FD46B503F00",
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/* order */ "01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFA51868783BF2F966B7FCC0148F709A5D03BB5C9B8899C47AEBB6FB71E91386409",
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/* Gx */ "00C6858E06B70404E9CD9E3ECB662395B4429C648139053FB521F828AF606B4D3DBAA14B5E77EFE75928FE1DC127A2FFA8DE3348B3C1856A429BF97E7E31C2E5BD66",
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/* Gy */ "011839296A789A3BC0045C8A5FB42C7D1BD998F54449579B446817AFBD17273E662C97EE72995EF42640C550B9013FAD0761353C7086A272C24088BE94769FD16650",
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/* cofactor */ 1,
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/* OID */ "1.3.132.0.35"
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};
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static const EECCCurve kEccTypes[] = {EECCCurve::eCurve256, EECCCurve::eCurve384, EECCCurve::eCurve521};
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static const ltc_ecc_curve *kEccCurves[] = {&kNistp256, &kNistp384, &kNistp521};
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AuOptional<EECCCurve> OIDToCurve(unsigned long *oid, unsigned long oidlen)
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{
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char tempAgain[256];
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unsigned long size = AuArraySize(tempAgain);
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if (pk_oid_num_to_str(oid, oidlen, tempAgain, &size) != CRYPT_OK)
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{
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return {};
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}
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// TODO: EVIL
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auto evil = AuString(tempAgain, tempAgain + size);
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for (AU_ITERATE_ARRAY(i, kEccCurves))
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{
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if (kEccCurves[i]->OID == evil)
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{
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return kEccTypes[i];
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}
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}
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return {};
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}
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AuOptional<const ltc_ecc_curve *> GetECCCurve(unsigned long *oid, unsigned long oidlen)
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{
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char tempAgain[256];
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unsigned long size = AuArraySize(tempAgain);
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if (pk_oid_num_to_str(oid, oidlen, tempAgain, &size) != CRYPT_OK)
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{
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return {};
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}
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// TODO: EVIL
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return GetECCCurve(AuString(tempAgain, tempAgain + size));
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}
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AuOptional<const ltc_ecc_curve *> GetECCCurve(const AuString &oid)
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{
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for (AU_ITERATE_ARRAY(i, kEccCurves))
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{
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if (kEccCurves[i]->OID == oid)
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{
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return kEccCurves[i];
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}
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}
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return {};
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}
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AuOptional<const ltc_ecc_curve *> GetECCCurve(EECCCurve curve)
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{
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// TODO: consider using ecc_find_curve, it's basically the same thing with strings
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switch (curve)
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{
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case EECCCurve::eCurve256:
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return &kNistp256;
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case EECCCurve::eCurve384:
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return &kNistp384;
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case EECCCurve::eCurve521:
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return &kNistp521;
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default:
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return {};
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}
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}
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} |