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krb5_init_keyblock - Initialize an empty krb5_keyblock .
==========================================================
..
.. 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
..
:retval:
- 0 Success; otherwise - Kerberos error codes
..
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.
..
.. note::
If *length* is set to 0, contents are left unallocated.
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