=head1 DESCRIPTION
These functions implement Montgomery multiplication. They are used
-automatically when BN_mod_exp(3) is called with suitable input,
+automatically when L<BN_mod_exp(3)|BN_mod_exp(3)> is called with suitable input,
but they may be useful when several operations are to be performed
using the same modulus.
BN_from_montgomery() performs the Montgomery reduction B<r> = B<a>*R^-1.
-BN_to_montgomery() computes Mont(B<a>,R^2).
+BN_to_montgomery() computes Mont(B<a>,R^2), i.e. B<a>*R.
For all functions, B<ctx> is a previously allocated B<BN_CTX> used for
temporary variables.
typedef struct bn_mont_ctx_st
{
- int use_word; /* 0 for word form, 1 for bignum form */
int ri; /* number of bits in R */
BIGNUM RR; /* R^2 (used to convert to Montgomery form) */
BIGNUM N; /* The modulus */
BN_MONT_CTX_init() and BN_MONT_CTX_free() have no return values.
For the other functions, 1 is returned for success, 0 on error.
-The error codes can be obtained by ERR_get_error(3).
+The error codes can be obtained by L<ERR_get_error(3)|ERR_get_error(3)>.
=head1 SEE ALSO
-bn(3), err(3), BN_add(3), BN_CTX_new(3)
+L<bn(3)|bn(3)>, L<err(3)|err(3)>, L<BN_add(3)|BN_add(3)>,
+L<BN_CTX_new(3)|BN_CTX_new(3)>
=head1 HISTORY