mirror of
https://github.com/planetmint/planetmint-go.git
synced 2025-03-30 15:08:28 +00:00
cb9f762675
* added upper and lower case TA resolution testing * added more detailed error reporting to the ValidateSignature method. * extended test cases to test and verify these errs and their differences * fixed CID attestation issue. CIDs are send in web compatible encoding that is not hex encoded and can be utilized without any further decoding on the server side. * added checks and error handling for the Ta store object storage/loading Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com>
55 lines
1.5 KiB
Go
55 lines
1.5 KiB
Go
package util
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import (
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"encoding/hex"
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"errors"
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"github.com/btcsuite/btcd/btcutil/hdkeychain"
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"github.com/cosmos/cosmos-sdk/crypto/keys/secp256k1"
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)
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func ValidateSignature(message string, signature string, publicKey string) (bool, error) {
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// Convert the message, signature, and public key from hex to bytes
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messageBytes, err := hex.DecodeString(message)
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if err != nil {
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return false, errors.New("invalid message hex string")
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}
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return ValidateSignatureByteMsg(messageBytes, signature, publicKey)
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}
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func ValidateSignatureByteMsg(message []byte, signature string, publicKey string) (bool, error) {
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// Convert signature, and public key from hex to bytes
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signatureBytes, err := hex.DecodeString(signature)
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if err != nil {
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return false, errors.New("invalid signature hex string")
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}
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publicKeyBytes, err := hex.DecodeString(publicKey)
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if err != nil {
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return false, errors.New("invalid public key hex string")
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}
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// Create a secp256k1 public key object
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pubKey := &secp256k1.PubKey{Key: publicKeyBytes}
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// Verify the signature
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isValid := pubKey.VerifySignature(message, signatureBytes)
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if !isValid {
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return false, errors.New("invalid signature")
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} else {
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return isValid, nil
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}
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}
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func GetHexPubKey(ext_pub_key string) (string, error) {
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xpubKey, err := hdkeychain.NewKeyFromString(ext_pub_key)
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if err != nil {
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return "", err
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}
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pubKey, err := xpubKey.ECPubKey()
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if err != nil {
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return "", err
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}
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byte_key := pubKey.SerializeCompressed()
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return hex.EncodeToString(byte_key), nil
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}
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