krb5_init_keyblock -  Initialize an empty krb5_keyblock . 

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.. c:function:: krb5_error_code krb5_init_keyblock(krb5_context context, krb5_enctype enctype, size_t length, krb5_keyblock ** out)

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:param:

	          **[in]** **context** - Library context

	          **[in]** **enctype** - Encryption type

	          **[in]** **length** - Length of keyblock (or 0)

	          **[out]** **out** - New keyblock structure

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:retval:

         -   0   Success; otherwise - Kerberos error codes

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Initialize a new keyblock and allocate storage for the contents of the key. It is legal to pass in a length of 0, in which case contents are left unallocated. Use :c:func:`krb5_free_keyblock()` to free *out* when it is no longer needed.

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.. note::

	 If *length* is set to 0, contents are left unallocated.