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@ -97,6 +97,16 @@ func toECDSA(d []byte, strict bool) (*ecdsa.PrivateKey, error) { |
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return nil, fmt.Errorf("invalid length, need %d bits", priv.Params().BitSize) |
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} |
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priv.D = new(big.Int).SetBytes(d) |
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// The priv.D must < N
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if priv.D.Cmp(secp256k1_N) >= 0 { |
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return nil, fmt.Errorf("invalid private key, >=N") |
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} |
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// The priv.D must not be zero or negative.
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if priv.D.Sign() <= 0 { |
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return nil, fmt.Errorf("invalid private key, zero or negative") |
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} |
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priv.PublicKey.X, priv.PublicKey.Y = priv.PublicKey.Curve.ScalarBaseMult(d) |
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if priv.PublicKey.X == nil { |
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return nil, errors.New("invalid private key") |
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