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Check input bip32 path again on second pass.

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This commit is contained in:
Jochen Hoenicke 2017-07-27 21:21:47 +02:00 committed by Pavol Rusnak
parent 6b615ce405
commit 3c75d28c78
1 changed files with 11 additions and 0 deletions
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11
firmware/signing.c
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@ -396,6 +396,17 @@ bool compile_input_script_sig(TxInputType *tinput)
return false;
}
}
if (in_address_n_count >= 1) {
// check that input address didn't change
size_t count = tinput->address_n_count;
if (count != in_address_n_count) {
return false;
}
if (count >= 2
&& 0 != memcmp(in_address_n, tinput->address_n, (count - 2) * sizeof(uint32_t))) {
return false;
}
}
memcpy(&node, root, sizeof(HDNode));
if (hdnode_private_ckd_cached(&node, tinput->address_n, tinput->address_n_count, NULL) == 0) {
// Failed to derive private key