34 lines
778 B
Go
34 lines
778 B
Go
package mpc
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import (
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"fmt"
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"math/big"
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"github.com/sonr-io/crypto/core/curves"
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)
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func GetECDSAPoint(pubKey []byte) (*curves.EcPoint, error) {
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crv := curves.K256()
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x := new(big.Int).SetBytes(pubKey[1:33])
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y := new(big.Int).SetBytes(pubKey[33:])
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ecCurve, err := crv.ToEllipticCurve()
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if err != nil {
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return nil, fmt.Errorf("error converting curve: %v", err)
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}
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return &curves.EcPoint{X: x, Y: y, Curve: ecCurve}, nil
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}
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func DeserializeSignature(sigBytes []byte) (*curves.EcdsaSignature, error) {
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if len(sigBytes) != 64 {
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return nil, fmt.Errorf("invalid signature length: expected 64 bytes, got %d", len(sigBytes))
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}
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r := new(big.Int).SetBytes(sigBytes[:32])
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s := new(big.Int).SetBytes(sigBytes[32:])
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return &curves.EcdsaSignature{
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R: r,
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S: s,
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}, nil
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}
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