mirror of
https://github.com/onsonr/sonr.git
synced 2025-03-10 21:09:11 +00:00
Prad Nukala
47c3a53080
* refactor: update import paths in gateway handlers * refactor: remove obsolete devtools Makefile and README * build: optimize build process for improved efficiency * refactor: remove obsolete pkl files related to Matrix and Sonr network configurations * refactor: move embed code to x/dwn/types
47 lines
1.3 KiB
Go
47 lines
1.3 KiB
Go
package keys
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import (
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"errors"
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"fmt"
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"math/big"
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"github.com/onsonr/sonr/internal/crypto/core/curves"
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)
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// getEcdsaPoint builds an elliptic curve point from a compressed byte slice
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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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// SerializeSecp256k1Signature serializes an ECDSA signature into a byte slice
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func serializeSignature(sig *curves.EcdsaSignature) ([]byte, error) {
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rBytes := sig.R.Bytes()
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sBytes := sig.S.Bytes()
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sigBytes := make([]byte, 66) // V (1 byte) + R (32 bytes) + S (32 bytes)
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sigBytes[0] = byte(sig.V)
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copy(sigBytes[33-len(rBytes):33], rBytes)
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copy(sigBytes[66-len(sBytes):66], sBytes)
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return sigBytes, nil
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}
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// DeserializeSecp256k1Signature deserializes an ECDSA signature from a byte slice
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func deserializeSignature(sigBytes []byte) (*curves.EcdsaSignature, error) {
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if len(sigBytes) != 66 {
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return nil, errors.New("malformed signature: not the correct size")
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}
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sig := &curves.EcdsaSignature{
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V: int(sigBytes[0]),
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R: new(big.Int).SetBytes(sigBytes[1:33]),
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S: new(big.Int).SetBytes(sigBytes[33:66]),
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}
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return sig, nil
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}
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