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Minor style and formatting fixes.

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This change corrects some minor style violations, mostly for spacing
around parentheses.
This commit is contained in:
Daniel King 2016-05-24 11:16:17 -03:00 committed by Manuel Pégourié-Gonnard
parent b6897f67a4
commit e6e7968c3a
3 changed files with 137 additions and 137 deletions
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60
library/aead_chacha20_poly1305.c
View File

@ -59,13 +59,13 @@ static void mbedtls_zeroize( void *v, size_t n ) {
*/ */
static void mbedtls_aead_chacha20_poly1305_pad_aad( mbedtls_aead_chacha20_poly1305_context *ctx ) static void mbedtls_aead_chacha20_poly1305_pad_aad( mbedtls_aead_chacha20_poly1305_context *ctx )
{ {
uint32_t partial_block_len = (uint32_t)( ctx->aad_len % 16U ); uint32_t partial_block_len = (uint32_t) ( ctx->aad_len % 16U );
unsigned char zeroes[15]; unsigned char zeroes[15];
if ( partial_block_len > 0U ) if ( partial_block_len > 0U )
{ {
memset( zeroes, 0, sizeof(zeroes) ); memset( zeroes, 0, sizeof( zeroes ) );
(void)mbedtls_poly1305_update( &ctx->poly1305_ctx, (void) mbedtls_poly1305_update( &ctx->poly1305_ctx,
16U - partial_block_len, 16U - partial_block_len,
zeroes ); zeroes );
} }
@ -78,13 +78,13 @@ static void mbedtls_aead_chacha20_poly1305_pad_aad( mbedtls_aead_chacha20_poly13
*/ */
static void mbedtls_aead_chacha20_poly1305_pad_ciphertext( mbedtls_aead_chacha20_poly1305_context *ctx ) static void mbedtls_aead_chacha20_poly1305_pad_ciphertext( mbedtls_aead_chacha20_poly1305_context *ctx )
{ {
uint32_t partial_block_len = (uint32_t)( ctx->ciphertext_len % 16U ); uint32_t partial_block_len = (uint32_t) ( ctx->ciphertext_len % 16U );
unsigned char zeroes[15]; unsigned char zeroes[15];
if ( partial_block_len > 0U ) if ( partial_block_len > 0U )
{ {
memset( zeroes, 0, sizeof(zeroes) ); memset( zeroes, 0, sizeof( zeroes ) );
(void)mbedtls_poly1305_update( &ctx->poly1305_ctx, (void) mbedtls_poly1305_update( &ctx->poly1305_ctx,
16U - partial_block_len, 16U - partial_block_len,
zeroes ); zeroes );
} }
@ -185,12 +185,12 @@ int mbedtls_aead_chacha20_poly1305_update_aad( mbedtls_aead_chacha20_poly1305_co
} }
else if ( ctx->state != AEAD_CHACHA20_POLY1305_STATE_AAD ) else if ( ctx->state != AEAD_CHACHA20_POLY1305_STATE_AAD )
{ {
return (MBEDTLS_ERR_AEAD_CHACHA20_POLY1305_BAD_STATE ); return(MBEDTLS_ERR_AEAD_CHACHA20_POLY1305_BAD_STATE );
} }
ctx->aad_len += aad_len; ctx->aad_len += aad_len;
return ( mbedtls_poly1305_update( &ctx->poly1305_ctx, aad_len, aad ) ); return( mbedtls_poly1305_update( &ctx->poly1305_ctx, aad_len, aad ) );
} }
int mbedtls_aead_chacha20_poly1305_update( mbedtls_aead_chacha20_poly1305_context *ctx, int mbedtls_aead_chacha20_poly1305_update( mbedtls_aead_chacha20_poly1305_context *ctx,
@ -228,13 +228,13 @@ int mbedtls_aead_chacha20_poly1305_update( mbedtls_aead_chacha20_poly1305_contex
* the input pointers are NULL. Since we have checked their validity * the input pointers are NULL. Since we have checked their validity
* above, we can safety ignore the return value. * above, we can safety ignore the return value.
*/ */
(void)mbedtls_chacha20_update( &ctx->chacha20_ctx, len, input, output ); (void) mbedtls_chacha20_update( &ctx->chacha20_ctx, len, input, output );
(void)mbedtls_poly1305_update( &ctx->poly1305_ctx, len, output ); (void) mbedtls_poly1305_update( &ctx->poly1305_ctx, len, output );
} }
else /* DECRYPT */ else /* DECRYPT */
{ {
(void)mbedtls_poly1305_update( &ctx->poly1305_ctx, len, input ); (void) mbedtls_poly1305_update( &ctx->poly1305_ctx, len, input );
(void)mbedtls_chacha20_update( &ctx->chacha20_ctx, len, input, output ); (void) mbedtls_chacha20_update( &ctx->chacha20_ctx, len, input, output );
} }
return( 0 ); return( 0 );
@ -268,25 +268,25 @@ int mbedtls_aead_chacha20_poly1305_finish( mbedtls_aead_chacha20_poly1305_contex
/* The lengths of the AAD and ciphertext are processed by /* The lengths of the AAD and ciphertext are processed by
* Poly1305 as the final 128-bit block, encoded as little-endian integers. * Poly1305 as the final 128-bit block, encoded as little-endian integers.
*/ */
len_block[0] = (unsigned char)ctx->aad_len; len_block[0] = (unsigned char) ctx->aad_len;
len_block[1] = (unsigned char)( ctx->aad_len >> 8 ); len_block[1] = (unsigned char) ( ctx->aad_len >> 8 );
len_block[2] = (unsigned char)( ctx->aad_len >> 16 ); len_block[2] = (unsigned char) ( ctx->aad_len >> 16 );
len_block[3] = (unsigned char)( ctx->aad_len >> 24 ); len_block[3] = (unsigned char) ( ctx->aad_len >> 24 );
len_block[4] = (unsigned char)( ctx->aad_len >> 32 ); len_block[4] = (unsigned char) ( ctx->aad_len >> 32 );
len_block[5] = (unsigned char)( ctx->aad_len >> 40 ); len_block[5] = (unsigned char) ( ctx->aad_len >> 40 );
len_block[6] = (unsigned char)( ctx->aad_len >> 48 ); len_block[6] = (unsigned char) ( ctx->aad_len >> 48 );
len_block[7] = (unsigned char)( ctx->aad_len >> 56 ); len_block[7] = (unsigned char) ( ctx->aad_len >> 56 );
len_block[8] = (unsigned char)ctx->ciphertext_len; len_block[8] = (unsigned char) ctx->ciphertext_len;
len_block[9] = (unsigned char)( ctx->ciphertext_len >> 8 ); len_block[9] = (unsigned char) ( ctx->ciphertext_len >> 8 );
len_block[10] = (unsigned char)( ctx->ciphertext_len >> 16 ); len_block[10] = (unsigned char) ( ctx->ciphertext_len >> 16 );
len_block[11] = (unsigned char)( ctx->ciphertext_len >> 24 ); len_block[11] = (unsigned char) ( ctx->ciphertext_len >> 24 );
len_block[12] = (unsigned char)( ctx->ciphertext_len >> 32 ); len_block[12] = (unsigned char) ( ctx->ciphertext_len >> 32 );
len_block[13] = (unsigned char)( ctx->ciphertext_len >> 40 ); len_block[13] = (unsigned char) ( ctx->ciphertext_len >> 40 );
len_block[14] = (unsigned char)( ctx->ciphertext_len >> 48 ); len_block[14] = (unsigned char) ( ctx->ciphertext_len >> 48 );
len_block[15] = (unsigned char)( ctx->ciphertext_len >> 56 ); len_block[15] = (unsigned char) ( ctx->ciphertext_len >> 56 );
(void)mbedtls_poly1305_update( &ctx->poly1305_ctx, 16U, len_block ); (void) mbedtls_poly1305_update( &ctx->poly1305_ctx, 16U, len_block );
(void)mbedtls_poly1305_finish( &ctx->poly1305_ctx, mac ); (void) mbedtls_poly1305_finish( &ctx->poly1305_ctx, mac );
return( 0 ); return( 0 );
} }

26
library/chacha20.c
View File

@ -47,13 +47,13 @@
#endif /* MBEDTLS_SELF_TEST */ #endif /* MBEDTLS_SELF_TEST */
#define BYTES_TO_U32_LE( data, offset ) \ #define BYTES_TO_U32_LE( data, offset ) \
( (uint32_t)data[offset] | \ ( (uint32_t) data[offset] \
(uint32_t)( (uint32_t)data[(offset) + 1] << 8 ) | \ | (uint32_t) ( (uint32_t) data[( offset ) + 1] << 8 ) \
(uint32_t)( (uint32_t)data[(offset) + 2] << 16 ) | \ | (uint32_t) ( (uint32_t) data[( offset ) + 2] << 16 ) \
(uint32_t)( (uint32_t)data[(offset) + 3] << 24 ) \ | (uint32_t) ( (uint32_t) data[( offset ) + 3] << 24 ) \
) )
#define ROTL32( value, amount ) ( (uint32_t)( value << amount ) | ( value >> ( 32 - amount ) ) ) #define ROTL32( value, amount ) ( (uint32_t) ( value << amount ) | ( value >> ( 32 - amount ) ) )
#define CHACHA20_CTR_INDEX ( 12U ) #define CHACHA20_CTR_INDEX ( 12U )
@ -172,9 +172,9 @@ static void mbedtls_chacha20_block( const uint32_t initial_state[16],
offset = i * 4U; offset = i * 4U;
keystream[offset ] = (unsigned char) working_state[i]; keystream[offset ] = (unsigned char) working_state[i];
keystream[offset + 1U] = (unsigned char)( working_state[i] >> 8 ); keystream[offset + 1U] = (unsigned char) ( working_state[i] >> 8 );
keystream[offset + 2U] = (unsigned char)( working_state[i] >> 16 ); keystream[offset + 2U] = (unsigned char) ( working_state[i] >> 16 );
keystream[offset + 3U] = (unsigned char)( working_state[i] >> 24 ); keystream[offset + 3U] = (unsigned char) ( working_state[i] >> 24 );
} }
} }
@ -277,10 +277,10 @@ int mbedtls_chacha20_keystream_block( const mbedtls_chacha20_context *ctx,
mbedtls_chacha20_block( initial_state, working_state, keystream ); mbedtls_chacha20_block( initial_state, working_state, keystream );
mbedtls_zeroize( initial_state, sizeof(initial_state) ); mbedtls_zeroize( initial_state, sizeof( initial_state ) );
mbedtls_zeroize( working_state, sizeof(working_state) ); mbedtls_zeroize( working_state, sizeof( working_state ) );
return ( 0 ); return( 0 );
} }
int mbedtls_chacha20_update( mbedtls_chacha20_context *ctx, int mbedtls_chacha20_update( mbedtls_chacha20_context *ctx,
@ -351,7 +351,7 @@ int mbedtls_chacha20_update( mbedtls_chacha20_context *ctx,
ctx->initial_state[CHACHA20_CTR_INDEX]++; ctx->initial_state[CHACHA20_CTR_INDEX]++;
} }
return 0; return( 0 );
} }
#endif /* !MBEDTLS_CHACHA20_ALT */ #endif /* !MBEDTLS_CHACHA20_ALT */
@ -380,7 +380,7 @@ int mbedtls_chacha20_crypt( const unsigned char key[32],
cleanup: cleanup:
mbedtls_chacha20_free( &ctx ); mbedtls_chacha20_free( &ctx );
return result; return( result );
} }
#if defined(MBEDTLS_SELF_TEST) #if defined(MBEDTLS_SELF_TEST)

168
library/poly1305.c
View File

@ -46,10 +46,10 @@
#define POLY1305_BLOCK_SIZE_BYTES ( 16U ) #define POLY1305_BLOCK_SIZE_BYTES ( 16U )
#define BYTES_TO_U32_LE( data, offset ) \ #define BYTES_TO_U32_LE( data, offset ) \
( (uint32_t)data[offset] | \ ( (uint32_t) data[offset] \
(uint32_t)( (uint32_t)data[(offset) + 1] << 8 ) | \ | (uint32_t) ( (uint32_t) data[( offset ) + 1] << 8 ) \
(uint32_t)( (uint32_t)data[(offset) + 2] << 16 ) | \ | (uint32_t) ( (uint32_t) data[( offset ) + 2] << 16 ) \
(uint32_t)( (uint32_t)data[(offset) + 3] << 24 ) \ | (uint32_t) ( (uint32_t) data[( offset ) + 3] << 24 ) \
) )
/* Implementation that should never be optimized out by the compiler */ /* Implementation that should never be optimized out by the compiler */
@ -100,59 +100,59 @@ static void mbedtls_poly1305_process( mbedtls_poly1305_context *ctx,
{ {
/* Compute: acc += block */ /* Compute: acc += block */
/* Note that the input block is treated as a 128-bit little-endian integer */ /* Note that the input block is treated as a 128-bit little-endian integer */
d0 = (uint64_t)acc0 + BYTES_TO_U32_LE( input, offset + 0 ); d0 = (uint64_t) acc0 + BYTES_TO_U32_LE( input, offset + 0 );
d1 = (uint64_t)acc1 + BYTES_TO_U32_LE( input, offset + 4 ) + ( d0 >> 32U ); d1 = (uint64_t) acc1 + BYTES_TO_U32_LE( input, offset + 4 ) + ( d0 >> 32U );
d2 = (uint64_t)acc2 + BYTES_TO_U32_LE( input, offset + 8 ) + ( d1 >> 32U ); d2 = (uint64_t) acc2 + BYTES_TO_U32_LE( input, offset + 8 ) + ( d1 >> 32U );
d3 = (uint64_t)acc3 + BYTES_TO_U32_LE( input, offset + 12 ) + ( d2 >> 32U ); d3 = (uint64_t) acc3 + BYTES_TO_U32_LE( input, offset + 12 ) + ( d2 >> 32U );
acc0 = (uint32_t)d0; acc0 = (uint32_t) d0;
acc1 = (uint32_t)d1; acc1 = (uint32_t) d1;
acc2 = (uint32_t)d2; acc2 = (uint32_t) d2;
acc3 = (uint32_t)d3; acc3 = (uint32_t) d3;
acc4 += (uint32_t)( d3 >> 32U ) + needs_padding; acc4 += (uint32_t) ( d3 >> 32U ) + needs_padding;
/* Compute: acc *= r */ /* Compute: acc *= r */
d0 = ( (uint64_t)acc0 * r0 ) + d0 = ( (uint64_t) acc0 * r0 ) +
( (uint64_t)acc1 * rs3 ) + ( (uint64_t) acc1 * rs3 ) +
( (uint64_t)acc2 * rs2 ) + ( (uint64_t) acc2 * rs2 ) +
( (uint64_t)acc3 * rs1 ); ( (uint64_t) acc3 * rs1 );
d1 = ( (uint64_t)acc0 * r1 ) + d1 = ( (uint64_t) acc0 * r1 ) +
( (uint64_t)acc1 * r0 ) + ( (uint64_t) acc1 * r0 ) +
( (uint64_t)acc2 * rs3 ) + ( (uint64_t) acc2 * rs3 ) +
( (uint64_t)acc3 * rs2 ) + ( (uint64_t) acc3 * rs2 ) +
( (uint64_t)acc4 * rs1 ); ( (uint64_t) acc4 * rs1 );
d2 = ( (uint64_t)acc0 * r2 ) + d2 = ( (uint64_t) acc0 * r2 ) +
( (uint64_t)acc1 * r1 ) + ( (uint64_t) acc1 * r1 ) +
( (uint64_t)acc2 * r0 ) + ( (uint64_t) acc2 * r0 ) +
( (uint64_t)acc3 * rs3 ) + ( (uint64_t) acc3 * rs3 ) +
( (uint64_t)acc4 * rs2 ); ( (uint64_t) acc4 * rs2 );
d3 = ( (uint64_t)acc0 * r3 ) + d3 = ( (uint64_t) acc0 * r3 ) +
( (uint64_t)acc1 * r2 ) + ( (uint64_t) acc1 * r2 ) +
( (uint64_t)acc2 * r1 ) + ( (uint64_t) acc2 * r1 ) +
( (uint64_t)acc3 * r0 ) + ( (uint64_t) acc3 * r0 ) +
( (uint64_t)acc4 * rs3 ); ( (uint64_t) acc4 * rs3 );
acc4 *= r0; acc4 *= r0;
/* Compute: acc %= (2^130 - 5) (partial remainder) */ /* Compute: acc %= (2^130 - 5) (partial remainder) */
d1 += ( d0 >> 32 ); d1 += ( d0 >> 32 );
d2 += ( d1 >> 32 ); d2 += ( d1 >> 32 );
d3 += ( d2 >> 32 ); d3 += ( d2 >> 32 );
acc0 = (uint32_t)d0; acc0 = (uint32_t) d0;
acc1 = (uint32_t)d1; acc1 = (uint32_t) d1;
acc2 = (uint32_t)d2; acc2 = (uint32_t) d2;
acc3 = (uint32_t)d3; acc3 = (uint32_t) d3;
acc4 = (uint32_t)( d3 >> 32 ) + acc4; acc4 = (uint32_t) ( d3 >> 32 ) + acc4;
d0 = (uint64_t)acc0 + ( acc4 >> 2 ) + ( acc4 & 0xFFFFFFFCU ); d0 = (uint64_t) acc0 + ( acc4 >> 2 ) + ( acc4 & 0xFFFFFFFCU );
acc4 &= 3U; acc4 &= 3U;
acc0 = (uint32_t)d0; acc0 = (uint32_t) d0;
d0 = (uint64_t)acc1 + ( d0 >> 32U ); d0 = (uint64_t) acc1 + ( d0 >> 32U );
acc1 = (uint32_t)d0; acc1 = (uint32_t) d0;
d0 = (uint64_t)acc2 + ( d0 >> 32U ); d0 = (uint64_t) acc2 + ( d0 >> 32U );
acc2 = (uint32_t)d0; acc2 = (uint32_t) d0;
d0 = (uint64_t)acc3 + ( d0 >> 32U ); d0 = (uint64_t) acc3 + ( d0 >> 32U );
acc3 = (uint32_t)d0; acc3 = (uint32_t) d0;
d0 = (uint64_t)acc4 + ( d0 >> 32U ); d0 = (uint64_t) acc4 + ( d0 >> 32U );
acc4 = (uint32_t)d0; acc4 = (uint32_t) d0;
offset += POLY1305_BLOCK_SIZE_BYTES; offset += POLY1305_BLOCK_SIZE_BYTES;
} }
@ -192,18 +192,18 @@ static void mbedtls_poly1305_compute_mac( const mbedtls_poly1305_context *ctx,
*/ */
/* Calculate acc + -(2^130 - 5) */ /* Calculate acc + -(2^130 - 5) */
d = ( (uint64_t)acc0 + 5U ); d = ( (uint64_t) acc0 + 5U );
g0 = (uint32_t)d; g0 = (uint32_t) d;
d = ( (uint64_t)acc1 + ( d >> 32 ) ); d = ( (uint64_t) acc1 + ( d >> 32 ) );
g1 = (uint32_t)d; g1 = (uint32_t) d;
d = ( (uint64_t)acc2 + ( d >> 32 ) ); d = ( (uint64_t) acc2 + ( d >> 32 ) );
g2 = (uint32_t)d; g2 = (uint32_t) d;
d = ( (uint64_t)acc3 + ( d >> 32 ) ); d = ( (uint64_t) acc3 + ( d >> 32 ) );
g3 = (uint32_t)d; g3 = (uint32_t) d;
g4 = acc4 + (uint32_t)( d >> 32U ); g4 = acc4 + (uint32_t) ( d >> 32U );
/* mask == 0xFFFFFFFF if 131st bit is set, otherwise mask == 0 */ /* mask == 0xFFFFFFFF if 131st bit is set, otherwise mask == 0 */
mask = (uint32_t)0U - ( g4 >> 2U ); mask = (uint32_t) 0U - ( g4 >> 2U );
mask_inv = ~mask; mask_inv = ~mask;
/* If 131st bit is set then acc=g, otherwise, acc is unmodified */ /* If 131st bit is set then acc=g, otherwise, acc is unmodified */
@ -213,38 +213,38 @@ static void mbedtls_poly1305_compute_mac( const mbedtls_poly1305_context *ctx,
acc3 = ( acc3 & mask_inv ) | ( g3 & mask ); acc3 = ( acc3 & mask_inv ) | ( g3 & mask );
/* Add 's' */ /* Add 's' */
d = (uint64_t)acc0 + ctx->s[0]; d = (uint64_t) acc0 + ctx->s[0];
acc0 = (uint32_t)d; acc0 = (uint32_t) d;
d = (uint64_t)acc1 + ctx->s[1] + ( d >> 32U ); d = (uint64_t) acc1 + ctx->s[1] + ( d >> 32U );
acc1 = (uint32_t)d; acc1 = (uint32_t) d;
d = (uint64_t)acc2 + ctx->s[2] + ( d >> 32U ); d = (uint64_t) acc2 + ctx->s[2] + ( d >> 32U );
acc2 = (uint32_t)d; acc2 = (uint32_t) d;
acc3 += ctx->s[3] + (uint32_t)( d >> 32U ); acc3 += ctx->s[3] + (uint32_t) ( d >> 32U );
/* Compute MAC (128 least significant bits of the accumulator) */ /* Compute MAC (128 least significant bits of the accumulator) */
mac[0] = (uint8_t)acc0; mac[0] = (unsigned char) acc0;
mac[1] = (uint8_t)( acc0 >> 8 ); mac[1] = (unsigned char) ( acc0 >> 8 );
mac[2] = (uint8_t)( acc0 >> 16 ); mac[2] = (unsigned char) ( acc0 >> 16 );
mac[3] = (uint8_t)( acc0 >> 24 ); mac[3] = (unsigned char) ( acc0 >> 24 );
mac[4] = (uint8_t)acc1; mac[4] = (unsigned char) acc1;
mac[5] = (uint8_t)( acc1 >> 8 ); mac[5] = (unsigned char) ( acc1 >> 8 );
mac[6] = (uint8_t)( acc1 >> 16 ); mac[6] = (unsigned char) ( acc1 >> 16 );
mac[7] = (uint8_t)( acc1 >> 24 ); mac[7] = (unsigned char) ( acc1 >> 24 );
mac[8] = (uint8_t)acc2; mac[8] = (unsigned char) acc2;
mac[9] = (uint8_t)( acc2 >> 8 ); mac[9] = (unsigned char) ( acc2 >> 8 );
mac[10] = (uint8_t)( acc2 >> 16 ); mac[10] = (unsigned char) ( acc2 >> 16 );
mac[11] = (uint8_t)( acc2 >> 24 ); mac[11] = (unsigned char) ( acc2 >> 24 );
mac[12] = (uint8_t)acc3; mac[12] = (unsigned char) acc3;
mac[13] = (uint8_t)( acc3 >> 8 ); mac[13] = (unsigned char) ( acc3 >> 8 );
mac[14] = (uint8_t)( acc3 >> 16 ); mac[14] = (unsigned char) ( acc3 >> 16 );
mac[15] = (uint8_t)( acc3 >> 24 ); mac[15] = (unsigned char) ( acc3 >> 24 );
} }
void mbedtls_poly1305_init( mbedtls_poly1305_context *ctx ) void mbedtls_poly1305_init( mbedtls_poly1305_context *ctx )
{ {
if ( ctx != NULL ) if ( ctx != NULL )
{ {
mbedtls_zeroize( ctx, sizeof(mbedtls_poly1305_context) ); mbedtls_zeroize( ctx, sizeof( mbedtls_poly1305_context ) );
} }
} }
@ -252,7 +252,7 @@ void mbedtls_poly1305_free( mbedtls_poly1305_context *ctx )
{ {
if ( ctx != NULL ) if ( ctx != NULL )
{ {
mbedtls_zeroize( ctx, sizeof(mbedtls_poly1305_context) ); mbedtls_zeroize( ctx, sizeof( mbedtls_poly1305_context ) );
} }
} }
@ -281,7 +281,7 @@ int mbedtls_poly1305_setkey( mbedtls_poly1305_context *ctx,
ctx->acc[2] = 0U; ctx->acc[2] = 0U;
ctx->acc[3] = 0U; ctx->acc[3] = 0U;
return 0; return( 0 );
} }
int mbedtls_poly1305_update( mbedtls_poly1305_context *ctx, int mbedtls_poly1305_update( mbedtls_poly1305_context *ctx,
@ -484,7 +484,7 @@ static const unsigned char test_mac[2][16] =
int mbedtls_poly1305_self_test( int verbose ) int mbedtls_poly1305_self_test( int verbose )
{ {
uint8_t mac[16]; unsigned char mac[16];
size_t i; size_t i;
int result; int result;