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Add length check.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
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Pol Henarejos
2022-09-08 13:51:15 +02:00
parent 6025030d58
commit a1db7ec1ea
1 changed files with 2 additions and 0 deletions
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2
src/fido/cmd_register.c
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@@ -30,6 +30,8 @@ int cmd_register() {
resp->keyHandleLen = KEY_HANDLE_LEN;
if (scan_files() != CCID_OK)
return SW_EXEC_ERROR();
if (apdu.nc != U2F_APPID_SIZE + U2F_CHAL_SIZE)
return SW_WRONG_LENGTH();
if (wait_button_pressed() == true)
return SW_CONDITIONS_NOT_SATISFIED();
mbedtls_ecdsa_context key;