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C4 rejects payloads longer than four bytes, preventing retry-counter corruption.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
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Pol Henarejos
2026-07-12 22:47:06 +02:00
parent a83561c597
commit 6e7bb818ae
1 changed files with 3 additions and 0 deletions
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src/openpgp/cmd_put_data.c
+3
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@@ -46,6 +46,9 @@ int cmd_put_data(void) {
return SW_SECURITY_STATUS_NOT_SATISFIED();
}
if (fid == EF_PW_STATUS) {
if (apdu.nc > 4) {
return SW_WRONG_DATA();
}
fid = EF_PW_PRIV;
if (apdu.nc == 0) {
return SW_WRONG_LENGTH();