DSA_SIG_set0 (3)

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NAME

DSA_SIG_get0, DSA_SIG_set0, DSA_SIG_new, DSA_SIG_free - allocate and free DSA signature objects

SYNOPSIS

 #include <openssl/dsa.h>

 DSA_SIG *DSA_SIG_new(void);
 void DSA_SIG_free(DSA_SIG *a);
 void DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps);
 int DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s);

DESCRIPTION

DSA_SIG_new() allocates an empty structure.

DSA_SIG_free() frees the

structure and its components. The values are erased before the memory is returned to the system.

DSA_SIG_get0() returns internal pointers to the r and s values contained in sig.

The r and s values can be set by calling DSA_SIG_set0() and passing the new values for r and s as parameters to the function. Calling this function transfers the memory management of the values to the

object, and therefore the values that have been passed in should not be freed directly after this function has been called.

RETURN VALUES

If the allocation fails, DSA_SIG_new() returns and sets an error code that can be obtained by ERR_get_error(3). Otherwise it returns a pointer to the newly allocated structure.

DSA_SIG_free() returns no value.

DSA_SIG_set0() returns 1 on success or 0 on failure.

SEE ALSO

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

COPYRIGHT

Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the OpenSSL license (the ``License''). You may not use this file except in compliance with the License. You can obtain a copy in the file

in the source distribution or at <www.openssl.org/source/license.html>.