DSA_sign_setup 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)

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

     NAME
	  DSA_sign, DSA_sign_setup, DSA_verify - DSA signatures

     SYNOPSIS
	   #include <openssl/dsa.h>

	   int	  DSA_sign(int type, const unsigned char *dgst, int len,
			  unsigned char *sigret, unsigned int *siglen, DSA *dsa);

	   int	  DSA_sign_setup(DSA *dsa, BN_CTX *ctx, BIGNUM **kinvp,
			  BIGNUM **rp);

	   int	  DSA_verify(int type, const unsigned char *dgst, int len,
			  unsigned char *sigbuf, int siglen, DSA *dsa);

     DESCRIPTION
	  DSA_sign() computes a digital signature on the len byte
	  message digest dgst using the private key dsa and places its
	  ASN.1 DER encoding at sigret. The length of the signature is
	  places in *siglen. sigret must point to DSA_size(dsa) bytes
	  of memory.

	  DSA_sign_setup() may be used to precompute part of the
	  signing operation in case signature generation is time-
	  critical. It expects dsa to contain DSA parameters. It
	  places the precomputed values in newly allocated BIGNUMs at
	  *kinvp and *rp, after freeing the old ones unless *kinvp and
	  *rp are NULL. These values may be passed to DSA_sign() in
	  dsa->kinv and dsa->r.	 ctx is a pre-allocated BN_CTX or
	  NULL.

	  DSA_verify() verifies that the signature sigbuf of size
	  siglen matches a given message digest dgst of size len.  dsa
	  is the signer's public key.

	  The type parameter is ignored.

	  The PRNG must be seeded before DSA_sign() (or
	  DSA_sign_setup()) is called.

     RETURN VALUES
	  DSA_sign() and DSA_sign_setup() return 1 on success, 0 on
	  error.  DSA_verify() returns 1 for a valid signature, 0 for
	  an incorrect signature and -1 on error. The error codes can
	  be obtained by ERR_get_error(3).

     CONFORMING TO
	  US Federal Information Processing Standard FIPS 186 (Digital
	  Signature Standard, DSS), ANSI X9.30

     SEE ALSO

     Page 1					    (printed 10/20/05)

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

	  dsa(3), ERR_get_error(3), rand(3), DSA_do_sign(3)

     HISTORY
	  DSA_sign() and DSA_verify() are available in all versions of
	  SSLeay.  DSA_sign_setup() was added in SSLeay 0.8.

     Page 2					    (printed 10/20/05)

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