Manual Pages for UNIX Operating System command usage for man BN_mod_inverse

OpenSSL                                  BN_mod_inverse(3openssl)



NNNNAAAAMMMMEEEE
     BN_mod_inverse - compute inverse modulo n

SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
      #include 

      BIGNUM *BN_mod_inverse(BIGNUM *r, BIGNUM *a, const BIGNUM *n,
                BN_CTX *ctx);


DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
     BN_mod_inverse() computes the inverse of aaaa modulo nnnn places
     the result in rrrr ((a*r)%n==1). If rrrr is NULL, a new BBBBIIIIGGGGNNNNUUUUMMMM is
     created.

     ccccttttxxxx is a previously allocated BBBBNNNN_CCCCTTTTXXXX used for temporary
     variables. rrrr may be the same BBBBIIIIGGGGNNNNUUUUMMMM as aaaa or nnnn.

RRRREEEETTTTUUUURRRRNNNN VVVVAAAALLLLUUUUEEEESSSS
     BN_mod_inverse() returns the BBBBIIIIGGGGNNNNUUUUMMMM containing the inverse,
     and NULL on error. The error codes can be obtained by
     ERR_get_error(3).

SSSSEEEEEEEE AAAALLLLSSSSOOOO
     bn(3), ERR_get_error(3), BN_add(3)

HHHHIIIISSSSTTTTOOOORRRRYYYY
     BN_mod_inverse() is available in all versions of SSLeay and
     OpenSSL.


























25/Sep/2002            Last change: 0.9.8o                      1