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-rw-r--r--src/tests/bigint_test.c68
1 files changed, 45 insertions, 23 deletions
diff --git a/src/tests/bigint_test.c b/src/tests/bigint_test.c
index 166c771b9..271d76723 100644
--- a/src/tests/bigint_test.c
+++ b/src/tests/bigint_test.c
@@ -58,24 +58,24 @@ void bigint_done_sample ( const bigint_element_t *value0, unsigned int size,
bigint_done ( value, out, len );
}
-void bigint_add_sample ( const bigint_element_t *addend0,
- bigint_element_t *value0, unsigned int size ) {
+int bigint_add_sample ( const bigint_element_t *addend0,
+ bigint_element_t *value0, unsigned int size ) {
const bigint_t ( size ) *addend __attribute__ (( may_alias ))
= ( ( const void * ) addend0 );
bigint_t ( size ) *value __attribute__ (( may_alias ))
= ( ( void * ) value0 );
- bigint_add ( addend, value );
+ return bigint_add ( addend, value );
}
-void bigint_subtract_sample ( const bigint_element_t *subtrahend0,
- bigint_element_t *value0, unsigned int size ) {
+int bigint_subtract_sample ( const bigint_element_t *subtrahend0,
+ bigint_element_t *value0, unsigned int size ) {
const bigint_t ( size ) *subtrahend __attribute__ (( may_alias ))
= ( ( const void * ) subtrahend0 );
bigint_t ( size ) *value __attribute__ (( may_alias ))
= ( ( void * ) value0 );
- bigint_subtract ( subtrahend, value );
+ return bigint_subtract ( subtrahend, value );
}
void bigint_shl_sample ( bigint_element_t *value0, unsigned int size ) {
@@ -253,16 +253,19 @@ void bigint_mod_exp_sample ( const bigint_element_t *base0,
* @v addend Big integer to add
* @v value Big integer to be added to
* @v expected Big integer expected result
+ * @v overflow Expected result overflows range
*/
-#define bigint_add_ok( addend, value, expected ) do { \
+#define bigint_add_ok( addend, value, expected, overflow ) do { \
static const uint8_t addend_raw[] = addend; \
static const uint8_t value_raw[] = value; \
static const uint8_t expected_raw[] = expected; \
uint8_t result_raw[ sizeof ( expected_raw ) ]; \
unsigned int size = \
bigint_required_size ( sizeof ( value_raw ) ); \
+ unsigned int msb = ( 8 * sizeof ( value_raw ) ); \
bigint_t ( size ) addend_temp; \
bigint_t ( size ) value_temp; \
+ int carry; \
{} /* Fix emacs alignment */ \
\
assert ( bigint_size ( &addend_temp ) == \
@@ -273,12 +276,15 @@ void bigint_mod_exp_sample ( const bigint_element_t *base0,
DBG ( "Add:\n" ); \
DBG_HDA ( 0, &addend_temp, sizeof ( addend_temp ) ); \
DBG_HDA ( 0, &value_temp, sizeof ( value_temp ) ); \
- bigint_add ( &addend_temp, &value_temp ); \
+ carry = bigint_add ( &addend_temp, &value_temp ); \
DBG_HDA ( 0, &value_temp, sizeof ( value_temp ) ); \
bigint_done ( &value_temp, result_raw, sizeof ( result_raw ) ); \
\
ok ( memcmp ( result_raw, expected_raw, \
sizeof ( result_raw ) ) == 0 ); \
+ if ( sizeof ( result_raw ) < sizeof ( value_temp ) ) \
+ carry += bigint_bit_is_set ( &value_temp, msb ); \
+ ok ( carry == overflow ); \
} while ( 0 )
/**
@@ -287,8 +293,10 @@ void bigint_mod_exp_sample ( const bigint_element_t *base0,
* @v subtrahend Big integer to subtract
* @v value Big integer to be subtracted from
* @v expected Big integer expected result
+ * @v underflow Expected result underflows range
*/
-#define bigint_subtract_ok( subtrahend, value, expected ) do { \
+#define bigint_subtract_ok( subtrahend, value, expected, \
+ underflow ) do { \
static const uint8_t subtrahend_raw[] = subtrahend; \
static const uint8_t value_raw[] = value; \
static const uint8_t expected_raw[] = expected; \
@@ -297,6 +305,7 @@ void bigint_mod_exp_sample ( const bigint_element_t *base0,
bigint_required_size ( sizeof ( value_raw ) ); \
bigint_t ( size ) subtrahend_temp; \
bigint_t ( size ) value_temp; \
+ int borrow; \
{} /* Fix emacs alignment */ \
\
assert ( bigint_size ( &subtrahend_temp ) == \
@@ -307,12 +316,13 @@ void bigint_mod_exp_sample ( const bigint_element_t *base0,
DBG ( "Subtract:\n" ); \
DBG_HDA ( 0, &subtrahend_temp, sizeof ( subtrahend_temp ) ); \
DBG_HDA ( 0, &value_temp, sizeof ( value_temp ) ); \
- bigint_subtract ( &subtrahend_temp, &value_temp ); \
+ borrow = bigint_subtract ( &subtrahend_temp, &value_temp ); \
DBG_HDA ( 0, &value_temp, sizeof ( value_temp ) ); \
bigint_done ( &value_temp, result_raw, sizeof ( result_raw ) ); \
\
ok ( memcmp ( result_raw, expected_raw, \
sizeof ( result_raw ) ) == 0 ); \
+ ok ( borrow == underflow ); \
} while ( 0 )
/**
@@ -724,16 +734,28 @@ static void bigint_test_exec ( void ) {
bigint_add_ok ( BIGINT ( 0x8a ),
BIGINT ( 0x43 ),
- BIGINT ( 0xcd ) );
+ BIGINT ( 0xcd ), 0 );
bigint_add_ok ( BIGINT ( 0xc5, 0x7b ),
BIGINT ( 0xd6, 0xb1 ),
- BIGINT ( 0x9c, 0x2c ) );
+ BIGINT ( 0x9c, 0x2c ), 1 );
bigint_add_ok ( BIGINT ( 0xf9, 0xd9, 0xdc ),
BIGINT ( 0x6d, 0x4b, 0xca ),
- BIGINT ( 0x67, 0x25, 0xa6 ) );
+ BIGINT ( 0x67, 0x25, 0xa6 ), 1 );
bigint_add_ok ( BIGINT ( 0xdd, 0xc2, 0x20, 0x5f ),
BIGINT ( 0x80, 0x32, 0xc4, 0xb0 ),
- BIGINT ( 0x5d, 0xf4, 0xe5, 0x0f ) );
+ BIGINT ( 0x5d, 0xf4, 0xe5, 0x0f ), 1 );
+ bigint_add_ok ( BIGINT ( 0x5e, 0x46, 0x4d, 0xc6, 0xa2, 0x7d, 0x45,
+ 0xc3 ),
+ BIGINT ( 0xd6, 0xc0, 0xd7, 0xd4, 0xf6, 0x04, 0x47,
+ 0xed ),
+ BIGINT ( 0x35, 0x07, 0x25, 0x9b, 0x98, 0x81, 0x8d,
+ 0xb0 ), 1 );
+ bigint_add_ok ( BIGINT ( 0x0e, 0x46, 0x4d, 0xc6, 0xa2, 0x7d, 0x45,
+ 0xc3 ),
+ BIGINT ( 0xd6, 0xc0, 0xd7, 0xd4, 0xf6, 0x04, 0x47,
+ 0xed ),
+ BIGINT ( 0xe5, 0x07, 0x25, 0x9b, 0x98, 0x81, 0x8d,
+ 0xb0 ), 0 );
bigint_add_ok ( BIGINT ( 0x01, 0xed, 0x45, 0x4b, 0x41, 0xeb, 0x4c,
0x2e, 0x53, 0x07, 0x15, 0x51, 0x56, 0x47,
0x29, 0xfc, 0x9c, 0xbd, 0xbd, 0xfb, 0x1b,
@@ -745,7 +767,7 @@ static void bigint_test_exec ( void ) {
BIGINT ( 0x75, 0xdb, 0x41, 0x80, 0x73, 0x0e, 0x23,
0xe0, 0x3d, 0x98, 0x70, 0x36, 0x11, 0x03,
0xcb, 0x35, 0x0f, 0x6c, 0x09, 0x17, 0xdc,
- 0xd6, 0xd0 ) );
+ 0xd6, 0xd0 ), 0 );
bigint_add_ok ( BIGINT ( 0x06, 0x8e, 0xd6, 0x18, 0xbb, 0x4b, 0x0c,
0xc5, 0x85, 0xde, 0xee, 0x9b, 0x3f, 0x65,
0x63, 0x86, 0xf5, 0x5a, 0x9f, 0xa2, 0xd7,
@@ -802,19 +824,19 @@ static void bigint_test_exec ( void ) {
0x68, 0x76, 0xf5, 0x20, 0xa1, 0xa8, 0x1a,
0x9f, 0x60, 0x58, 0xff, 0xb6, 0x76, 0x45,
0xe6, 0xed, 0x61, 0x8d, 0xe6, 0xc0, 0x72,
- 0x1c, 0x07 ) );
+ 0x1c, 0x07 ), 0 );
bigint_subtract_ok ( BIGINT ( 0x83 ),
BIGINT ( 0x50 ),
- BIGINT ( 0xcd ) );
+ BIGINT ( 0xcd ), 1 );
bigint_subtract_ok ( BIGINT ( 0x2c, 0x7c ),
BIGINT ( 0x49, 0x0e ),
- BIGINT ( 0x1c, 0x92 ) );
+ BIGINT ( 0x1c, 0x92 ), 0 );
bigint_subtract_ok ( BIGINT ( 0x9c, 0x30, 0xbf ),
BIGINT ( 0xde, 0x4e, 0x07 ),
- BIGINT ( 0x42, 0x1d, 0x48 ) );
+ BIGINT ( 0x42, 0x1d, 0x48 ), 0 );
bigint_subtract_ok ( BIGINT ( 0xbb, 0x77, 0x32, 0x5a ),
BIGINT ( 0x5a, 0xd5, 0xfe, 0x28 ),
- BIGINT ( 0x9f, 0x5e, 0xcb, 0xce ) );
+ BIGINT ( 0x9f, 0x5e, 0xcb, 0xce ), 1 );
bigint_subtract_ok ( BIGINT ( 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff ),
@@ -823,7 +845,7 @@ static void bigint_test_exec ( void ) {
0x00, 0x00, 0x00, 0x00, 0x00, 0x2a ),
BIGINT ( 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x2b ) );
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x2b ), 1 );
bigint_subtract_ok ( BIGINT ( 0x7b, 0xaa, 0x16, 0xcf, 0x15, 0x87,
0xe0, 0x4f, 0x2c, 0xa3, 0xec, 0x2f,
0x46, 0xfb, 0x83, 0xc6, 0xe0, 0xee,
@@ -835,7 +857,7 @@ static void bigint_test_exec ( void ) {
BIGINT ( 0xca, 0xab, 0x9f, 0x54, 0x4e, 0x48,
0x75, 0x8c, 0x63, 0x28, 0x69, 0x78,
0xe8, 0x8a, 0x3d, 0xd8, 0x4b, 0x24,
- 0xb8, 0xa4, 0x71, 0x6d, 0x6b ) );
+ 0xb8, 0xa4, 0x71, 0x6d, 0x6b ), 1 );
bigint_subtract_ok ( BIGINT ( 0x5b, 0x06, 0x77, 0x7b, 0xfd, 0x34,
0x5f, 0x0f, 0xd9, 0xbd, 0x8e, 0x5d,
0xc8, 0x4a, 0x70, 0x95, 0x1b, 0xb6,
@@ -901,7 +923,7 @@ static void bigint_test_exec ( void ) {
0x29, 0x8c, 0x43, 0x9f, 0xf0, 0x9d,
0xda, 0xc8, 0x8c, 0x71, 0x86, 0x97,
0x7f, 0xcb, 0x94, 0x31, 0x1d, 0xbc,
- 0x44, 0x1a ) );
+ 0x44, 0x1a ), 0 );
bigint_shl_ok ( BIGINT ( 0xe0 ),
BIGINT ( 0xc0 ) );
bigint_shl_ok ( BIGINT ( 0x43, 0x1d ),
generated by cgit (git 2.34.1) at 2025-02-23 04:22:50 +0000