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Before checking the PIN sleep for 2^ctr - 1 seconds instead of 2^(ctr-1) seconds.

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This commit is contained in:
Andrew Kozlik 2019-02-14 16:52:35 +01:00
parent 13b256ab2c
commit 94cb1a4dbe
1 changed files with 2 additions and 2 deletions
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4
storage.c
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@ -744,8 +744,8 @@ secbool storage_unlock(uint32_t pin)
return secfalse; return secfalse;
} }
// Sleep for 2^(ctr-1) seconds before checking the PIN. // Sleep for 2^ctr - 1 seconds before checking the PIN.
uint32_t wait = (1 << ctr) >> 1; uint32_t wait = (1 << ctr) - 1;
uint32_t progress; uint32_t progress;
for (uint32_t rem = wait; rem > 0; rem--) { for (uint32_t rem = wait; rem > 0; rem--) {
for (int i = 0; i < 10; i++) { for (int i = 0; i < 10; i++) {