DH_compute_key man page on IRIX

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     /xlv3/openssl/0.9.7e-sgipl1/work/0.9.7e-sgipl1/openssl-
     0.9.7e/doc/crypto

     Page 1					    (printed 10/20/05)

     DH_generate_key(3)	   25/Sep/2002 (0.9.7e)	    DH_generate_key(3)

     NAME
	  DH_generate_key, DH_compute_key - perform Diffie-Hellman key
	  exchange

     SYNOPSIS
	   #include <openssl/dh.h>

	   int DH_generate_key(DH *dh);

	   int DH_compute_key(unsigned char *key, BIGNUM *pub_key, DH *dh);

     DESCRIPTION
	  DH_generate_key() performs the first step of a Diffie-
	  Hellman key exchange by generating private and public DH
	  values. By calling DH_compute_key(), these are combined with
	  the other party's public value to compute the shared key.

	  DH_generate_key() expects dh to contain the shared
	  parameters dh->p and dh->g. It generates a random private DH
	  value unless dh->priv_key is already set, and computes the
	  corresponding public value dh->pub_key, which can then be
	  published.

	  DH_compute_key() computes the shared secret from the private
	  DH value in dh and the other party's public value in pub_key
	  and stores it in key. key must point to DH_size(dh) bytes of
	  memory.

     RETURN VALUES
	  DH_generate_key() returns 1 on success, 0 otherwise.

	  DH_compute_key() returns the size of the shared secret on
	  success, -1 on error.

	  The error codes can be obtained by ERR_get_error(3).

     SEE ALSO
	  dh(3), ERR_get_error(3), rand(3), DH_size(3)

     HISTORY
	  DH_generate_key() and DH_compute_key() are available in all
	  versions of SSLeay and OpenSSL.

     Page 1					    (printed 10/20/05)

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