From a978a3761dafd7a7d13067f85c2938ad01fc0c65 Mon Sep 17 00:00:00 2001
From: xtruan <git@to.scrk.net>
Date: Sat, 4 Mar 2023 10:00:02 -0800
Subject: [PATCH] move eth address hashing to heap

---
 crypto/bip32.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/crypto/bip32.c b/crypto/bip32.c
index 09723d9fd5e..b8a787e2378 100644
--- a/crypto/bip32.c
+++ b/crypto/bip32.c
@@ -507,7 +507,9 @@ int hdnode_fill_public_key(HDNode *node) {
 #if USE_ETHEREUM
 int hdnode_get_ethereum_pubkeyhash(const HDNode *node, uint8_t *pubkeyhash) {
   uint8_t buf[65] = {0};
-  SHA3_CTX ctx = {0};
+  //SHA3_CTX ctx = {0};
+  SHA3_CTX *ctx = malloc(sizeof(SHA3_CTX));
+  memzero(ctx, sizeof(SHA3_CTX));
 
   /* get uncompressed public key */
   if (ecdsa_get_public_key65(node->curve->params, node->private_key, buf) !=
@@ -516,9 +518,12 @@ int hdnode_get_ethereum_pubkeyhash(const HDNode *node, uint8_t *pubkeyhash) {
   }
 
   /* compute sha3 of x and y coordinate without 04 prefix */
-  sha3_256_Init(&ctx);
-  sha3_Update(&ctx, buf + 1, 64);
-  keccak_Final(&ctx, buf);
+  sha3_256_Init(ctx);
+  sha3_Update(ctx, buf + 1, 64);
+  keccak_Final(ctx, buf);
+
+  memzero(ctx, sizeof(SHA3_CTX));
+  free(ctx);
 
   /* result are the least significant 160 bits */
   memcpy(pubkeyhash, buf + 12, 20);