diff options
Diffstat (limited to 'openssl-1.1.0h/doc/crypto/BN_mod_inverse.pod')
-rw-r--r-- | openssl-1.1.0h/doc/crypto/BN_mod_inverse.pod | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/openssl-1.1.0h/doc/crypto/BN_mod_inverse.pod b/openssl-1.1.0h/doc/crypto/BN_mod_inverse.pod new file mode 100644 index 0000000..cb84a14 --- /dev/null +++ b/openssl-1.1.0h/doc/crypto/BN_mod_inverse.pod @@ -0,0 +1,41 @@ +=pod + +=head1 NAME + +BN_mod_inverse - compute inverse modulo n + +=head1 SYNOPSIS + + #include <openssl/bn.h> + + BIGNUM *BN_mod_inverse(BIGNUM *r, BIGNUM *a, const BIGNUM *n, + BN_CTX *ctx); + +=head1 DESCRIPTION + +BN_mod_inverse() computes the inverse of B<a> modulo B<n> +places the result in B<r> (C<(a*r)%n==1>). If B<r> is NULL, +a new B<BIGNUM> is created. + +B<ctx> is a previously allocated B<BN_CTX> used for temporary +variables. B<r> may be the same B<BIGNUM> as B<a> or B<n>. + +=head1 RETURN VALUES + +BN_mod_inverse() returns the B<BIGNUM> containing the inverse, and +NULL on error. The error codes can be obtained by L<ERR_get_error(3)>. + +=head1 SEE ALSO + +L<ERR_get_error(3)>, L<BN_add(3)> + +=head1 COPYRIGHT + +Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved. + +Licensed under the OpenSSL license (the "License"). You may not use +this file except in compliance with the License. You can obtain a copy +in the file LICENSE in the source distribution or at +L<https://www.openssl.org/source/license.html>. + +=cut |