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Constant time RSA PKCS#1 v1.5 depadding #2948

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merged 8 commits into from
Feb 5, 2024
Merged

Constant time RSA PKCS#1 v1.5 depadding #2948

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b9e1d34
Reimplement removing of PKCS#1 v1.5 padding to be time constant
xhanulik Nov 13, 2023
708ce24
Add unit tests for PKCS#1 v1.5 de-padding
xhanulik Nov 13, 2023
1a6a18c
pkcs15-sec: Remove logging after PKCS#1 v1.5 depadding
xhanulik Nov 16, 2023
a8ac593
framework-pkcs15.c: Handle PKCS#1 v1.5 depadding constant-time
xhanulik Nov 16, 2023
32cdab4
mechanism: Handle PKCS#1 v1.5 depadding constant-time
xhanulik Jan 8, 2024
1fe1a78
minidriver: Make CardRSADecrypt constant-time
xhanulik Nov 22, 2023
306dc92
pkcs11-object: Remove return value logging
xhanulik Nov 24, 2023
aa6bf2b
misc: Compare return value constant-time
xhanulik Nov 24, 2023
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misc: Compare return value constant-time
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@xhanulik
xhanulik committed Jan 31, 2024
commit aa6bf2b65fe432e8f234a132268b79ea54d5d74b
3 changes: 2 additions & 1 deletion src/pkcs11/misc.c
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Expand Up @@ -23,6 +23,7 @@
#include <stdlib.h>
#include <string.h>

#include "common/constant-time.h"
#include "sc-pkcs11.h"

#define DUMP_TEMPLATE_MAX 32
Expand Down Expand Up @@ -174,7 +175,7 @@ CK_RV reset_login_state(struct sc_pkcs11_slot *slot, CK_RV rv)
slot->p11card->framework->logout(slot);
}

if (rv == CKR_USER_NOT_LOGGED_IN) {
if (constant_time_eq_s(rv, CKR_USER_NOT_LOGGED_IN)) {
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slot->login_user = -1;
pop_all_login_states(slot);
}
Expand Down