Remove NULL pointer validation in chacha20.c
#define inline __inline
#endif
-/* Parameter validation macros */
-#define CHACHA20_VALIDATE_RET( cond ) \
- MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_CHACHA20_BAD_INPUT_DATA )
-#define CHACHA20_VALIDATE( cond ) \
- MBEDTLS_INTERNAL_VALIDATE( cond )
-
#define ROTL32( value, amount ) \
( (uint32_t) ( (value) << (amount) ) | ( (value) >> ( 32 - (amount) ) ) )
@@ -172,8 +166,6 @@ static void chacha20_block( const uint32_t initial_state[16],
void mbedtls_chacha20_init( mbedtls_chacha20_context *ctx )
{
- CHACHA20_VALIDATE( ctx != NULL );
-
mbedtls_platform_zeroize( ctx->state, sizeof( ctx->state ) );
mbedtls_platform_zeroize( ctx->keystream8, sizeof( ctx->keystream8 ) );
@@ -192,9 +184,6 @@ void mbedtls_chacha20_free( mbedtls_chacha20_context *ctx )
int mbedtls_chacha20_setkey( mbedtls_chacha20_context *ctx,
const unsigned char key[32] )
{
- CHACHA20_VALIDATE_RET( ctx != NULL );
- CHACHA20_VALIDATE_RET( key != NULL );
-
/* ChaCha20 constants - the string "expand 32-byte k" */
ctx->state[0] = 0x61707865;
ctx->state[1] = 0x3320646e;
@@ -218,9 +207,6 @@ int mbedtls_chacha20_starts( mbedtls_chacha20_context* ctx,
const unsigned char nonce[12],
uint32_t counter )
{
- CHACHA20_VALIDATE_RET( ctx != NULL );
- CHACHA20_VALIDATE_RET( nonce != NULL );
-
/* Counter */
ctx->state[12] = counter;
@@ -245,10 +231,6 @@ int mbedtls_chacha20_update( mbedtls_chacha20_context *ctx,
size_t offset = 0U;
size_t i;
- CHACHA20_VALIDATE_RET( ctx != NULL );
- CHACHA20_VALIDATE_RET( size == 0 || input != NULL );
- CHACHA20_VALIDATE_RET( size == 0 || output != NULL );
-
/* Use leftover keystream bytes, if available */
while( size > 0U && ctx->keystream_bytes_used < CHACHA20_BLOCK_SIZE_BYTES )
{
@@ -312,11 +294,6 @@ int mbedtls_chacha20_crypt( const unsigned char key[32],
mbedtls_chacha20_context ctx;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- CHACHA20_VALIDATE_RET( key != NULL );
- CHACHA20_VALIDATE_RET( nonce != NULL );
- CHACHA20_VALIDATE_RET( data_len == 0 || input != NULL );
- CHACHA20_VALIDATE_RET( data_len == 0 || output != NULL );
-
mbedtls_chacha20_init( &ctx );
ret = mbedtls_chacha20_setkey( &ctx, key );
