Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
BN_ADD_WORD(3)			    OpenSSL			BN_ADD_WORD(3)

NAME
       BN_add_word, BN_sub_word, BN_mul_word, BN_div_word, BN_mod_word -
       arithmetic functions on BIGNUMs with integers

SYNOPSIS
	#include <openssl/bn.h>

	int BN_add_word(BIGNUM *a, BN_ULONG w);

	int BN_sub_word(BIGNUM *a, BN_ULONG w);

	int BN_mul_word(BIGNUM *a, BN_ULONG w);

	BN_ULONG BN_div_word(BIGNUM *a,	BN_ULONG w);

	BN_ULONG BN_mod_word(const BIGNUM *a, BN_ULONG w);

DESCRIPTION
       These functions perform arithmetic operations on	BIGNUMs	with unsigned
       integers. They are much more efficient than the normal BIGNUM
       arithmetic operations.

       BN_add_word() adds w to a ("a+=w").

       BN_sub_word() subtracts w from a	("a-=w").

       BN_mul_word() multiplies	a and w	("a*=w").

       BN_div_word() divides a by w ("a/=w") and returns the remainder.

       BN_mod_word() returns the remainder of a	divided	by w ("a%w").

       For BN_div_word() and BN_mod_word(), w must not be 0.

RETURN VALUES
       BN_add_word(), BN_sub_word() and	BN_mul_word() return 1 for success, 0
       on error. The error codes can be	obtained by ERR_get_error(3).

       BN_mod_word() and BN_div_word() return a%w on success and (BN_ULONG)-1
       if an error occurred.

SEE ALSO
       ERR_get_error(3), BN_add(3)

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
       <https://www.openssl.org/source/license.html>.

1.1.1a				  2018-11-20			BN_ADD_WORD(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | COPYRIGHT

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=BN_add_word&sektion=3&manpath=FreeBSD+12.0-RELEASE+and+Ports>

home | help