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npm startOutput
{
"compressedPublicKey": "034505a233408038dcbccbc649cc9405e06b97fa04608ceece68f0770cc26f87a8",
"privateKey": "0x5cf6a35fbef071b9c28703ef46ee1e1951653cf0ec8ab5f8e022632c2e760705",
"publicKey": "4505a233408038dcbccbc649cc9405e06b97fa04608ceece68f0770cc26f87a899d9af4d8416150bbdd8d0852ae84a4d30eb5790e1760961602644a00409d7f1",
"address": "0xd721C010fbEEdBC0829d996c79DB9a3B765062AF"
}public Header sign(String body) {
Header header = new Header();
header.setAddress(this.address);
header.setTimestamp(System.currentTimeMillis());
header.setSession(this.sessionId);
header.setSequence(this.seq.getAndIncrement());
String content = contentToBeSigned(header, body);
byte[] messageHash = sha256(content);
SignatureData signature = Sign.signMessage(messageHash, this.keyPair, false);
log.debug("Sign message content {}", content);
log.debug("Sign message hash {}", Hex.encodeHexString(messageHash));
log.debug("Signagure V {}", Hex.encodeHexString(signature.getV()));
log.debug("Signature R {}", Hex.encodeHexString(signature.getR()));
log.debug("Signature S {}", Hex.encodeHexString(signature.getS()));
header.setSignature(signature((signature)));
return header;
}
public static VerifyResult verify(Set<String> whiteListedAddresses, Header header, String body, long expiredInMs) {
if(!whiteListedAddresses.contains(header.getAddress())) {
return VerifyResult.InvalidAddress;
}
long now = System.currentTimeMillis();
if (header.getTimestamp() < now - expiredInMs) {
return VerifyResult.Expired;
}
String content = contentToBeSigned(header, body);
byte[] messageHash = sha256(content);
String signature = header.getSignature();
if(!signature.startsWith("0x")){
signature = "0x" + signature;
}
try {
log.debug("Sign message content {}", content);
log.debug("Verfiy message hash {}", Hex.encodeHexString(messageHash));
List<SignatureData> signatures = new ArrayList<>();
if (signature.length() == 130) {
SignatureData signatureData27 = signature(signature + "1b"); // v = 27
SignatureData signatureData28 = signature(signature + "1c"); // v = 28
signatures.add(signatureData27);
signatures.add(signatureData28);
log.debug("Signagure V {}", Hex.encodeHexString(signatureData27.getV()));
log.debug("Signature R {}", Hex.encodeHexString(signatureData27.getR()));
} else {
SignatureData signatureData = signature(signature);
signatures.add(signatureData);
log.debug("Signagure V {}", Hex.encodeHexString(signatureData.getV()));
log.debug("Signature R {}", Hex.encodeHexString(signatureData.getR()));
log.debug("Signature S {}", Hex.encodeHexString(signatureData.getS()));
}
boolean match = false;
for(SignatureData s : signatures) {
BigInteger publicKey = Sign.signedMessageHashToKey(messageHash, s);
String address = getAddressFromPublicKey(publicKey);
if (address.equals(header.getAddress())) {
match = true;
}
}
if (match) {
return VerifyResult.Verified;
} else {
return VerifyResult.SignatureNotMatch;
}
} catch (Exception e) {
log.error("Verify signature failed.", e);
return VerifyResult.SignatureNotMatch;
}
}/**
* Sign message
* @param body
* @returns return header values
*/
sign(body = ""): Header{
const seq = this.seq++;
const ts = new Date().getTime();
const header:Header = {
address: this.address,
timestamp: ts,
session: this.sessionId,
sequence: seq,
signature: "",
}
const content = WalletManagerUtils.contentToBeSigned(header, body);
const contentHash = hash.sha256().update(content).digest('hex');
// sign
const signature = EthCrypto.sign(this.#privateKey, contentHash);
// update signature
header.signature = signature;
return header;
}
/**
*
* @param header
* @param body
*/
static verify(whiteListedAddresses:string[], header:Header, body:string, expiredInMs = Constants.MESSAGE_EXPIRED_IN_MS): VerifyResult{
if(!whiteListedAddresses.includes(header.address)){
return VerifyResult.InvalidAddress;
}
const now = new Date().getTime();
if(header.timestamp < now - expiredInMs){
return VerifyResult.Expired;
}
return WalletManagerUtils.verifyHeader(header, body);
}
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