38 lines
1.1 KiB
Go
38 lines
1.1 KiB
Go
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// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package x509
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import (
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"crypto/elliptic"
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"math/big"
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"sync"
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)
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// This file holds ECC curves that are not supported by the main Go crypto/elliptic
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// library, but which have been observed in certificates in the wild.
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var initonce sync.Once
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var p192r1 *elliptic.CurveParams
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func initAllCurves() {
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initSECP192R1()
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}
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func initSECP192R1() {
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// See SEC-2, section 2.2.2
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p192r1 = &elliptic.CurveParams{Name: "P-192"}
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p192r1.P, _ = new(big.Int).SetString("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF", 16)
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p192r1.N, _ = new(big.Int).SetString("FFFFFFFFFFFFFFFFFFFFFFFF99DEF836146BC9B1B4D22831", 16)
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p192r1.B, _ = new(big.Int).SetString("64210519E59C80E70FA7E9AB72243049FEB8DEECC146B9B1", 16)
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p192r1.Gx, _ = new(big.Int).SetString("188DA80EB03090F67CBF20EB43A18800F4FF0AFD82FF1012", 16)
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p192r1.Gy, _ = new(big.Int).SetString("07192B95FFC8DA78631011ED6B24CDD573F977A11E794811", 16)
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p192r1.BitSize = 192
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}
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func secp192r1() elliptic.Curve {
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initonce.Do(initAllCurves)
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return p192r1
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}
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