yuzu-emu/mbedtls
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Use mbedtls_xor in Camellia

Browse source 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
This commit is contained in:
Dave Rodgman 2022-11-22 16:23:11 +00:00
parent 7bb6b84b29
commit d23399eb69
1 changed files with 2 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
library/camellia.c
View file

@ -526,7 +526,6 @@ int mbedtls_camellia_crypt_cbc( mbedtls_camellia_context *ctx,
const unsigned char *input, const unsigned char *input,
unsigned char *output ) unsigned char *output )
{ {
int i;
unsigned char temp[16]; unsigned char temp[16];
if( mode != MBEDTLS_CAMELLIA_ENCRYPT && mode != MBEDTLS_CAMELLIA_DECRYPT ) if( mode != MBEDTLS_CAMELLIA_ENCRYPT && mode != MBEDTLS_CAMELLIA_DECRYPT )
return MBEDTLS_ERR_CAMELLIA_BAD_INPUT_DATA; return MBEDTLS_ERR_CAMELLIA_BAD_INPUT_DATA;
@ -541,8 +540,7 @@ int mbedtls_camellia_crypt_cbc( mbedtls_camellia_context *ctx,
memcpy( temp, input, 16 ); memcpy( temp, input, 16 );
mbedtls_camellia_crypt_ecb( ctx, mode, input, output ); mbedtls_camellia_crypt_ecb( ctx, mode, input, output );
for( i = 0; i < 16; i++ ) mbedtls_xor( output, output, iv, 16 );
output[i] = (unsigned char)( output[i] ^ iv[i] );
memcpy( iv, temp, 16 ); memcpy( iv, temp, 16 );
@ -555,8 +553,7 @@ int mbedtls_camellia_crypt_cbc( mbedtls_camellia_context *ctx,
{ {
while( length > 0 ) while( length > 0 )
{ {
for( i = 0; i < 16; i++ ) mbedtls_xor( output, input, iv, 16 );
output[i] = (unsigned char)( input[i] ^ iv[i] );
mbedtls_camellia_crypt_ecb( ctx, mode, output, output ); mbedtls_camellia_crypt_ecb( ctx, mode, output, output );
memcpy( iv, output, 16 ); memcpy( iv, output, 16 );