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ccm: use random_in_range instead of duplicating its functionality

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Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
This commit is contained in:
Andrzej Kurek 2020-11-17 12:16:42 +01:00
parent 0fa427b027
commit 18c60aaca1
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GPG key ID: 89A90840DC388527
1 changed files with 3 additions and 3 deletions
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6
library/ccm.c
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@ -131,7 +131,7 @@ static void mbedtls_generate_permutation( unsigned char* table, size_t size )
for( i = size - 1; i > 0; i-- ) for( i = size - 1; i > 0; i-- )
{ {
unsigned char tmp; unsigned char tmp;
j = mbedtls_platform_random_uint32() % ( i + 1 ); j = mbedtls_platform_random_in_range( (uint32_t) i + 1 );
tmp = table[i]; tmp = table[i];
table[i] = table[j]; table[i] = table[j];
table[j] = tmp; table[j] = tmp;
@ -144,7 +144,7 @@ static void mbedtls_generate_masks( unsigned char* table, size_t size )
for( i = 0; i < size; i++ ) for( i = 0; i < size; i++ )
{ {
table[i] = mbedtls_platform_random_uint32() % ( 256 ); table[i] = mbedtls_platform_random_in_range( 256 );
} }
} }
@ -174,7 +174,7 @@ static void mbedtls_generate_masks( unsigned char* table, size_t size )
#define COPY_MASK( dst, src, mask, len_src, len_dst ) \ #define COPY_MASK( dst, src, mask, len_src, len_dst ) \
do \ do \
{ \ { \
unsigned j, offset = mbedtls_platform_random_uint32() % 256; \ unsigned j, offset = mbedtls_platform_random_in_range( 256 ); \
for( i = 0; i < len_src; i++ ) \ for( i = 0; i < len_src; i++ ) \
{ \ { \
j = (i + offset) % len_src; \ j = (i + offset) % len_src; \