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EIP712 signatures now computed on chain ID

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This commit is contained in:
Alexandre Paillier
2022-06-27 18:51:57 +02:00
parent 559e729188
commit 47e47dd818
1 changed files with 22 additions and 0 deletions
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22
src_features/signMessageEIP712/entrypoint.c
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@@ -488,8 +488,19 @@ static bool verify_contract_name_signature(uint8_t dname_length,
uint8_t hash[INT256_LENGTH];
cx_ecfp_public_key_t verifying_key;
cx_sha256_t hash_ctx;
uint64_t chain_id;
cx_sha256_init(&hash_ctx);
// Chain ID
chain_id = __builtin_bswap64(chainConfig->chainId);
cx_hash((cx_hash_t*)&hash_ctx,
0,
(uint8_t*)&chain_id,
sizeof(chain_id),
NULL,
0);
// Contract address
cx_hash((cx_hash_t*)&hash_ctx,
0,
@@ -558,8 +569,19 @@ static bool verify_field_name_signature(uint8_t dname_length,
uint8_t hash[INT256_LENGTH];
cx_ecfp_public_key_t verifying_key;
cx_sha256_t hash_ctx;
uint64_t chain_id;
cx_sha256_init(&hash_ctx);
// Chain ID
chain_id = __builtin_bswap64(chainConfig->chainId);
cx_hash((cx_hash_t*)&hash_ctx,
0,
(uint8_t*)&chain_id,
sizeof(chain_id),
NULL,
0);
// Contract address
cx_hash((cx_hash_t*)&hash_ctx,
0,