Commit 47f87f53 authored by Ulf Möller's avatar Ulf Möller
Browse files

remove obsolete BN_CTX info

parent 981cdfab

doc/crypto/bn_internal.pod

+2 −12
Original line number Diff line number Diff line
@@ -92,18 +92,8 @@ Various routines in this library require the use of temporary 
B<BIGNUM> variables during their execution.  Since dynamic memory

allocation to create B<BIGNUM>s is rather expensive when used in

conjunction with repeated subroutine calls, the B<BN_CTX> structure is

used.  This structure contains B<BN_CTX_NUM> B<BIGNUM>s.

B<BN_CTX_NUM> is the maximum number of temporary B<BIGNUM>s any

publicly exported function will use.



 #define BN_CTX_NUM  12

 typedef struct bignum_ctx

        {

        int tos;                    /* top of stack */

        BIGNUM *bn[BN_CTX_NUM];     /* The variables */

        } BN_CTX;



B<tos> is the index of the first unused B<BIGNUM> in the B<bn> array.

used.  This structure contains B<BN_CTX_NUM> B<BIGNUM>s, see

L<BN_CTX_start(3)|BN_CTX_start(3)>.



=head2 Low-level arithmetic operations