init

2026-08-08 05:09:01 +08:00
parent 03a40105fc
commit 74a67c3900
523 changed files with 669 additions and 5965 deletions
@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Services\Chain;
+
+use Elliptic\EC;
+use RuntimeException;
+
+final class TronSigner
+{
+    /**
+     * Sign a Tron txID (sha256 hex of raw_data) → 65-byte hex signature (r||s||v).
+     */
+    public static function signTxId(string $privateKeyHex, string $txIdHex): string
+    {
+        $txIdHex = strtolower(ltrim($txIdHex, '0x'));
+        if (strlen($txIdHex) !== 64) {
+            throw new RuntimeException('Invalid txID');
+        }
+
+        $ec = new EC('secp256k1');
+        $key = $ec->keyFromPrivate($privateKeyHex);
+        $sig = $key->sign($txIdHex, ['canonical' => true]);
+
+        $r = str_pad($sig->r->toString(16), 64, '0', STR_PAD_LEFT);
+        $s = str_pad($sig->s->toString(16), 64, '0', STR_PAD_LEFT);
+        $v = dechex($sig->recoveryParam & 0xff);
+        if (strlen($v) === 1) {
+            $v = '0'.$v;
+        }
+
+        return $r.$s.$v;
+    }
+}