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https://git.suyu.dev/suyu/mbedtls.git
synced 2026-03-06 04:23:01 +00:00
Tighten ecp_mul() validity checks
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@@ -115,12 +115,15 @@ void ecp_small_mul( int m_str, int r_zero, int x_r, int y_r, int ret )
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TEST_ASSERT( ecp_mul( &grp, &R, &m, &grp.G, NULL, NULL ) == ret );
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if( r_zero )
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TEST_ASSERT( mpi_cmp_int( &R.Z, 0 ) == 0 );
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else
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if( ret == 0 )
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{
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TEST_ASSERT( mpi_cmp_int( &R.X, x_r ) == 0 );
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TEST_ASSERT( mpi_cmp_int( &R.Y, y_r ) == 0 );
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if( r_zero )
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TEST_ASSERT( mpi_cmp_int( &R.Z, 0 ) == 0 );
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else
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{
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TEST_ASSERT( mpi_cmp_int( &R.X, x_r ) == 0 );
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TEST_ASSERT( mpi_cmp_int( &R.Y, y_r ) == 0 );
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}
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}
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/* try again with randomization */
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@@ -129,12 +132,15 @@ void ecp_small_mul( int m_str, int r_zero, int x_r, int y_r, int ret )
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TEST_ASSERT( ecp_mul( &grp, &R, &m, &grp.G,
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&rnd_pseudo_rand, &rnd_info ) == ret );
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if( r_zero )
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TEST_ASSERT( mpi_cmp_int( &R.Z, 0 ) == 0 );
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else
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if( ret == 0 )
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{
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TEST_ASSERT( mpi_cmp_int( &R.X, x_r ) == 0 );
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TEST_ASSERT( mpi_cmp_int( &R.Y, y_r ) == 0 );
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if( r_zero )
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TEST_ASSERT( mpi_cmp_int( &R.Z, 0 ) == 0 );
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else
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{
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TEST_ASSERT( mpi_cmp_int( &R.X, x_r ) == 0 );
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TEST_ASSERT( mpi_cmp_int( &R.Y, y_r ) == 0 );
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}
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}
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ecp_group_free( &grp );
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