2009/9/14 Mounir IDRASSI <mounir.idra...@idrix.net>: > Hi, > > There is no explicit function for this but you can use the function > BN_GF2m_add to perform the XOR of two BIGNUMs : for GF2m polynomials, > the addition is a simple bitwise XOR. Thank you very much, i use cscope and find the BN_GF2m_add , the note is " Add polynomials a and b and store result in r; r could be a or b, a and b could be equeal; r is the bitwise XOR of a and b ." i want to know when the r is the xor of a and b. > > Cheers, > -- > Mounir IDRASSI > IDRIX > http://www.idrix.fr > > jaze lee wrote: >> I want to implement xor function of large number . I do not know >> whether the similar function is already been implemented. If so, where >> i can find it . And if not i have to try , thank you ! >> ______________________________________________________________________ >> OpenSSL Project http://www.openssl.org >> User Support Mailing List openssl-us...@openssl.org >> Automated List Manager majord...@openssl.org >> > ______________________________________________________________________ > OpenSSL Project http://www.openssl.org > User Support Mailing List openssl-us...@openssl.org > Automated List Manager majord...@openssl.org > ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager majord...@openssl.org