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@nakov
nakov / ECDSA-secp256k1-example.java
Last active July 21, 2023 09:37
ECDSA with secp256k1 in Java: generate ECC keys, sign, verify
import org.bouncycastle.util.encoders.Hex;
import org.web3j.crypto.*;
import java.math.BigInteger;
public class ECCExample {
public static String compressPubKey(BigInteger pubKey) {
String pubKeyYPrefix = pubKey.testBit(0) ? "03" : "02";
String pubKeyHex = pubKey.toString(16);
String pubKeyX = pubKeyHex.substring(0, 64);
@webmaster128
webmaster128 / TOUR_COMSJS_STARGATE.md
Last active March 10, 2025 03:18
CosmJS + Stargate – A guided tour

Support for Cosmos SDK Stargate in CosmJS has been ongoing work for several months now. Stargate is released and CosmJS is here to connect to it.

Starting points

Let's explore what is new for Stargate support:

@K1ethoang
K1ethoang / Active StarUml version 6 for Window | MacOS | Linux.md
Last active December 4, 2025 13:23
Active StarUml version 6 for Window | MacOS | Linux