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BN_init(3ssl) - phpMan

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BN_new(3SSL)                                 OpenSSL                                 BN_new(3SSL)

       BN_new, BN_init, BN_clear, BN_free, BN_clear_free - allocate and free BIGNUMs

        #include <openssl/bn.h>

        BIGNUM *BN_new(void);

        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() initializes 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 value 0.

       BN_free() frees the components of the BIGNUM, and if it was created by BN_new(), also the
       structure itself. BN_clear_free() additionally overwrites the data before the memory is
       returned to the system.

       BN_new() returns a pointer to the BIGNUM. 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 values.

       bn(3), ERR_get_error(3)

       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 0.9.1b.

1.0.1t                                      2016-05-03                               BN_new(3SSL)

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