Hi: 2009/5/22 Victor B. Wagner <vi...@cryptocom.ru>: > On 2009.05.22 at 15:02:59 +0800, sofian sindhi wrote: > >> Hi openssl friendsl: >> I can see BN operations from http://linux.die.net/man/3/bn_add >> but I cannot find any operation about XOR, OR and AND. >> And I cannot find any related functions defined in bn.h. >> Does that mean BN doesn't have these operations or I find the wrong place? >> Sincerely Yours, > > These operations do not involve carry bits. So you can perform them > byte-wise or word-wise. No need to write highly optimized assembly > routine.
By your suggestion, if I have BN a,1024bits, and b, 2048 bits, the only way I can do OR is using char *BN_bn2hex(const BIGNUM *a) to transform each one as 2 char*. Then do the OR byte by byte? appreciate your help, sofian ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager majord...@openssl.org
