feat: support ethsecp256k1 algorithm in SigningStargateClient for pubkey encoding

Author: chiulam

packages/amino/src/addresses.ts

@@ -32,7 +32,6 @@ export function rawEthSecp256k1PubkeyToRawAddress(pubkeyData: Uint8Array): Uint8
   return hash.slice(-20);
 }
 
-
 // For secp256k1 this assumes we already have a compressed pubkey.
 export function pubkeyToRawAddress(pubkey: Pubkey): Uint8Array {
   if (isSecp256k1Pubkey(pubkey)) {

packages/stargate/src/signingstargateclient.ts

@@ -397,7 +397,12 @@ export class SigningStargateClient extends StargateClient {
     if (!accountFromSigner) {
       throw new Error("Failed to retrieve account from signer");
     }
-    const pubkey = encodePubkey(encodeSecp256k1Pubkey(accountFromSigner.pubkey));
+    let pubkey;
+    if (accountFromSigner.algo == "eth_secp256k1" || accountFromSigner.algo == "ethsecp256k1") {
+      pubkey = encodePubkey(encodeEthSecp256k1Pubkey(accountFromSigner.pubkey));
+    } else {
+      pubkey = encodePubkey(encodeSecp256k1Pubkey(accountFromSigner.pubkey));
+    }
     const signMode = SignMode.SIGN_MODE_LEGACY_AMINO_JSON;
     const msgs = messages.map((msg) => this.aminoTypes.toAmino(msg));
     const signDoc = makeSignDocAmino(msgs, fee, chainId, memo, accountNumber, sequence, timeoutHeight);
@@ -445,7 +450,7 @@ export class SigningStargateClient extends StargateClient {
       throw new Error("Failed to retrieve account from signer");
     }
     let pubkey;
-    if (accountFromSigner.algo == "eth_secp256k1") {
+    if (accountFromSigner.algo == "eth_secp256k1" || accountFromSigner.algo == "ethsecp256k1") {
       pubkey = encodePubkey(encodeEthSecp256k1Pubkey(accountFromSigner.pubkey));
     } else {
       pubkey = encodePubkey(encodeSecp256k1Pubkey(accountFromSigner.pubkey));