Examples with ECDSASignature org.web3j.crypto.ECDSASignature used on opensource projects

Example 6 with ECDSASignature

use of org.web3j.crypto.ECDSASignature in project web3j by web3j.

the class HSMHTTPRequestProcessor method callHSM.

@Override
public Sign.SignatureData callHSM(byte[] dataToSign, HSMHTTPPass pass) {
    Request request = createRequest(dataToSign, pass);
    try (okhttp3.Response response = client.newCall(request).execute()) {
        ResponseBody responseBody = response.body();
        if (response.isSuccessful()) {
            if (responseBody != null) {
                String signHex = readResponse(responseBody.byteStream());
                byte[] signBytes = Numeric.hexStringToByteArray(signHex);
                ECDSASignature signature = CryptoUtils.fromDerFormat(signBytes);
                return Sign.createSignatureData(signature, pass.getPublicKey(), dataToSign);
            } else {
                return null;
            }
        } else {
            int code = response.code();
            String text = responseBody == null ? "N/A" : responseBody.string();
            throw new ClientConnectionException("Invalid response received: " + code + "; " + text);
        }
    } catch (IOException e) {
        log.error(e.getMessage(), e);
    }
    return null;
}

Example 7 with ECDSASignature

use of org.web3j.crypto.ECDSASignature in project signers by ConsenSys.

the class MultiKeyTransactionSigningAcceptanceTestBase method verifySignature.

void verifySignature(String publicKeyHex) {
    ECPublicKey pubKey = EthPublicKeyUtils.createPublicKey(Bytes.fromHexString(publicKeyHex));
    final Optional<Signer> signer = signerProvider.getSigner(new PublicKeySignerIdentifier(pubKey));
    assertThat(signer).isNotEmpty();
    final Signature signature = signer.get().sign(DATA_TO_SIGN);
    final BigInteger messagePublicKey = recoverPublicKey(signature);
    assertThat(EthPublicKeyUtils.createPublicKey(messagePublicKey)).isEqualTo(pubKey);
    final ECDSASignature ecdsaSignature = new ECDSASignature(signature.getR(), signature.getS());
    assertThat(ecdsaSignature.isCanonical()).isTrue();
}

Example 8 with ECDSASignature

use of org.web3j.crypto.ECDSASignature in project web3signer by ConsenSys.

the class FilecoinVerify method recoverSignature.

private static BigInteger recoverSignature(final SecpArtifactSignature artifactSignature, final byte[] digest) {
    final tech.pegasys.signers.secp256k1.api.Signature signatureData = artifactSignature.getSignatureData();
    final ECDSASignature signature = new ECDSASignature(signatureData.getR(), signatureData.getS());
    final ECDSASignature canonicalSignature = signature.toCanonicalised();
    final int recId = signatureData.getV().intValue();
    return Sign.recoverFromSignature(recId, canonicalSignature, digest);
}