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- Moved to prevent uninitialized exit var

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This commit is contained in:
Paul Bakker 2012-05-19 08:40:49 +00:00
parent 4248823f43
commit 50546921ac
1 changed files with 13 additions and 13 deletions
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26
library/bignum.c
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@ -1396,19 +1396,6 @@ int mpi_exp_mod( mpi *X, const mpi *A, const mpi *E, const mpi *N, mpi *_RR )
if( mpi_cmp_int( E, 0 ) < 0 ) if( mpi_cmp_int( E, 0 ) < 0 )
return( POLARSSL_ERR_MPI_BAD_INPUT_DATA ); return( POLARSSL_ERR_MPI_BAD_INPUT_DATA );
/*
* Compensate for negative A (and correct at the end)
*/
neg = ( A->s == -1 );
mpi_init( &Apos );
if( neg )
{
MPI_CHK( mpi_copy( &Apos, A ) );
Apos.s = 1;
A = &Apos;
}
/* /*
* Init temps and window size * Init temps and window size
*/ */
@ -1429,6 +1416,19 @@ int mpi_exp_mod( mpi *X, const mpi *A, const mpi *E, const mpi *N, mpi *_RR )
MPI_CHK( mpi_grow( &W[1], j ) ); MPI_CHK( mpi_grow( &W[1], j ) );
MPI_CHK( mpi_grow( &T, j * 2 ) ); MPI_CHK( mpi_grow( &T, j * 2 ) );
/*
* Compensate for negative A (and correct at the end)
*/
neg = ( A->s == -1 );
mpi_init( &Apos );
if( neg )
{
MPI_CHK( mpi_copy( &Apos, A ) );
Apos.s = 1;
A = &Apos;
}
/* /*
* If 1st call, pre-compute R^2 mod N * If 1st call, pre-compute R^2 mod N
*/ */