BN_new, BN_init, BN_clear, BN_free, BN_clear_free - allocate and free
void BN_init(BIGNUM *);
void BN_clear(BIGNUM *a);
void BN_free(BIGNUM *a);
void BN_clear_free(BIGNUM *a);
BN_new() allocates and initializes a BIGNUM structure. BN_init() ini-
tializes an existing uninitialized BIGNUM.
BN_clear() is used to destroy sensitive data such as keys when they are
no longer needed. It erases the memory used by a and sets it to the
BN_free() frees the components of the BIGNUM, and if it was created by
BN_new(), also the structure itself. BN_clear_free() additionally over-
writes the data before the memory is returned to the system. If a is
NULL, nothing is done.
BN_new() returns a pointer to the BIGNUM initialised to the value 0.
If the allocation fails, it returns NULL and sets an error code that
can be obtained by ERR_get_error(3).
BN_init(), BN_clear(), BN_free() and BN_clear_free() have no return
BN_new(), BN_clear(), BN_free() and BN_clear_free() are available in
all versions on SSLeay and OpenSSL. BN_init() was added in SSLeay
1.0.2t 2019-09-10 BN_new(3)
See also BN_clear(3)
See also BN_clear_free(3)
See also BN_init(3)
See also BN_new(3)
Man(1) output converted with