36 lines
682 B
Go
36 lines
682 B
Go
package test
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import (
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"crypto/ecdsa"
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"crypto/rand"
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"encoding/hex"
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"github.com/decred/dcrd/dcrec/secp256k1/v4"
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)
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func GenerateKeyPair() (*secp256k1.PrivateKey, *secp256k1.PublicKey, error) {
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var (
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sk *secp256k1.PrivateKey
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err error
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)
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if sk, err = secp256k1.GeneratePrivateKey(); err != nil {
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return nil, nil, err
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}
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return sk, sk.PubKey(), nil
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}
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func Sign(sk *secp256k1.PrivateKey, k1_ string) (string, error) {
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var (
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k1 []byte
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sig []byte
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err error
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)
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if k1, err = hex.DecodeString(k1_); err != nil {
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return "", err
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}
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if sig, err = ecdsa.SignASN1(rand.Reader, sk.ToECDSA(), k1); err != nil {
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return "", err
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}
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return hex.EncodeToString(sig), nil
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}
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