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Add Character byte reading macros

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These cast to an unsigned char rather than a uint8_t
like with MBEDTLS_BYTE_x
These save alot of space and will improve maintence by
replacing the appropriate code with MBEDTLS_CHAR_x

Signed-off-by: Joe Subbiani <joe.subbiani@arm.com>
This commit is contained in:
Joe Subbiani
2021-07-08 14:59:52 +01:00
parent 9231d5f919
commit 6b897c930c
12 changed files with 326 additions and 329 deletions
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18
library/ecjpake.c
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@@ -166,10 +166,10 @@ static int ecjpake_write_len_point( unsigned char **p,
if( ret != 0 )
return( ret );
(*p)[0] = (unsigned char)( ( len >> 24 ) & 0xFF );
(*p)[1] = (unsigned char)( ( len >> 16 ) & 0xFF );
(*p)[2] = (unsigned char)( ( len >> 8 ) & 0xFF );
(*p)[3] = (unsigned char)( ( len ) & 0xFF );
(*p)[0] = MBEDTLS_CHAR_3( len );
(*p)[1] = MBEDTLS_CHAR_2( len );
(*p)[2] = MBEDTLS_CHAR_1( len );
(*p)[3] = MBEDTLS_CHAR_0( len );
*p += 4 + len;
@@ -209,10 +209,10 @@ static int ecjpake_hash( const mbedtls_md_info_t *md_info,
if( end - p < 4 )
return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
*p++ = (unsigned char)( ( id_len >> 24 ) & 0xFF );
*p++ = (unsigned char)( ( id_len >> 16 ) & 0xFF );
*p++ = (unsigned char)( ( id_len >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( id_len ) & 0xFF );
*p++ = MBEDTLS_CHAR_3( id_len );
*p++ = MBEDTLS_CHAR_2( id_len );
*p++ = MBEDTLS_CHAR_1( id_len );
*p++ = MBEDTLS_CHAR_0( id_len );
if( end < p || (size_t)( end - p ) < id_len )
return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
@@ -352,7 +352,7 @@ static int ecjpake_zkp_write( const mbedtls_md_info_t *md_info,
goto cleanup;
}
*(*p)++ = (unsigned char)( len & 0xFF );
*(*p)++ = MBEDTLS_CHAR_0( len );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &h, *p, len ) ); /* r */
*p += len;