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Increase hamming distance by changing UECC_SUCCESS from 0 to FFAAAA

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Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
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Andrzej Kurek 2020-07-16 11:33:34 -04:00
parent a798e5d5cc
commit c3b69edd2f
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GPG Key ID: 89A90840DC388527
1 changed files with 1 additions and 1 deletions
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include/tinycrypt/ecc.h
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@ -85,7 +85,7 @@ extern "C" {
/* Return values for functions, chosen with large Hamming distances between /* Return values for functions, chosen with large Hamming distances between
* them (especially to SUCESS) to mitigate the impact of fault injection * them (especially to SUCESS) to mitigate the impact of fault injection
* attacks flipping a low number of bits. */ * attacks flipping a low number of bits. */
#define UECC_SUCCESS 0 #define UECC_SUCCESS 0x00FFAAAA
#define UECC_FAILURE 0x75555555 #define UECC_FAILURE 0x75555555
#define UECC_FAULT_DETECTED 0x7aaaaaaa #define UECC_FAULT_DETECTED 0x7aaaaaaa