OpenBSD manual page server

Manual Page Search Parameters

DSA_SIG_NEW(3) Library Functions Manual DSA_SIG_NEW(3)

DSA_SIG_new, DSA_SIG_free, DSA_SIG_get0, DSA_SIG_set0manipulate DSA signature objects

#include <openssl/dsa.h>


DSA_SIG_free(DSA_SIG *sig);

DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **r, const BIGNUM **s);

DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s);

() allocates an empty DSA_SIG structure.

() frees the DSA_SIG structure and its components. The values are erased before the memory is returned to the system. If sig is a NULL pointer, no action occurs.

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

The r and s values can be set by calling (). Calling this function transfers the memory management of the values to sig, and therefore they should not be freed by the caller.

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_set0() returns 1 on success or 0 on failure.

DSA_do_sign(3), DSA_new(3)

DSA_SIG_new() and DSA_SIG_free() first appeared in OpenSSL 0.9.3 and have been available since OpenBSD 2.6.

DSA_SIG_get0() and DSA_SIG_set0() first appeared in OpenSSL 1.1.0 and have been available since OpenBSD 6.3.

June 10, 2019 OpenBSD-6.7