feat: Sui supports the secp256k1/secp256r1 algorithms (#2476)

* feat: support secp256k1/secp256r1 for sui

* fix coderabbitai review

packages/plugin-sui/src/utils.ts

@@ -1,15 +1,47 @@
 import type { IAgentRuntime } from "@elizaos/core";
 import { Ed25519Keypair } from "@mysten/sui/keypairs/ed25519";
+import { Secp256k1Keypair } from "@mysten/sui/keypairs/secp256k1";
+import { Secp256r1Keypair } from "@mysten/sui/keypairs/secp256r1";
 
-const parseAccount = (runtime: IAgentRuntime): Ed25519Keypair => {
+const parseAccount = (
+    runtime: IAgentRuntime
+): Ed25519Keypair | Secp256k1Keypair | Secp256r1Keypair => {
     const privateKey = runtime.getSetting("SUI_PRIVATE_KEY");
     if (!privateKey) {
         throw new Error("SUI_PRIVATE_KEY is not set");
     } else if (privateKey.startsWith("suiprivkey")) {
-        return Ed25519Keypair.fromSecretKey(privateKey);
+        return loadFromSecretKey(privateKey);
     } else {
-        return Ed25519Keypair.deriveKeypairFromSeed(privateKey);
+        return loadFromMnemonics(privateKey);
     }
 };
 
+const loadFromSecretKey = (privateKey: string) => {
+    const keypairClasses = [Ed25519Keypair, Secp256k1Keypair, Secp256r1Keypair];
+    for (const KeypairClass of keypairClasses) {
+        try {
+            return KeypairClass.fromSecretKey(privateKey);
+        } catch {
+            continue;
+        }
+    }
+    throw new Error("Failed to initialize keypair from secret key");
+};
+
+const loadFromMnemonics = (mnemonics: string) => {
+    const keypairMethods = [
+        { Class: Ed25519Keypair, method: "deriveKeypairFromSeed" },
+        { Class: Secp256k1Keypair, method: "deriveKeypair" },
+        { Class: Secp256r1Keypair, method: "deriveKeypair" },
+    ];
+    for (const { Class, method } of keypairMethods) {
+        try {
+            return Class[method](mnemonics);
+        } catch {
+            continue;
+        }
+    }
+    throw new Error("Failed to derive keypair from mnemonics");
+};
+
 export { parseAccount };