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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 DSA_SIG structure.

       DSA_SIG_free() frees the DSA_SIG 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 DSA_SIG 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 NULL 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_new(3), ERR_get_error(3), DSA_do_sign(3)

COPYRIGHT

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

       Licensed under the Apache License 2.0 (the "License").  You may not use this file except
       in compliance with the License.  You can obtain a copy in the file LICENSE in the source
       distribution or at <https://www.openssl.org/source/license.html>.