29 lines
649 B
Go
29 lines
649 B
Go
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// Copyright (c) 2013-2014 Conformal Systems LLC.
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// Use of this source code is governed by an ISC
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// license that can be found in the LICENSE file.
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package btcec
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import (
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"crypto/ecdsa"
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"math/big"
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)
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// PrivKeyFromBytes returns a private and public key for `curve' based on the
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// private key passed as an argument as a byte slice.
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func PrivKeyFromBytes(curve *KoblitzCurve, pk []byte) (*ecdsa.PrivateKey,
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*PublicKey) {
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x, y := curve.ScalarBaseMult(pk)
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priv := &ecdsa.PrivateKey{
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PublicKey: ecdsa.PublicKey{
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Curve: curve,
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X: x,
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Y: y,
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},
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D: new(big.Int).SetBytes(pk),
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}
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return priv, (*PublicKey)(&priv.PublicKey)
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}
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