31 lines
713 B
Go
31 lines
713 B
Go
package roots
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import (
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"encoding/hex"
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"fmt"
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"github.com/decred/dcrd/dcrec/secp256k1/v4"
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)
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func GeneratePrivateKey() (string, error) {
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sk, err := secp256k1.GeneratePrivateKey()
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if err != nil {
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return "", err
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}
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skBytes := sk.Serialize()
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return hex.EncodeToString(skBytes), nil
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}
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func GetPublicKey(privateKeyHex string) (string, error) {
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if len(privateKeyHex) != 64 {
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return "", fmt.Errorf("private key must be 64 hex characters")
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}
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skBytes, err := hex.DecodeString(privateKeyHex)
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if err != nil {
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return "", fmt.Errorf("invalid private key hex: %w", err)
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}
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pk := secp256k1.PrivKeyFromBytes(skBytes).PubKey()
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pkBytes := pk.SerializeCompressed()[1:]
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return hex.EncodeToString(pkBytes), nil
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}
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