# MIT Kerberos Documentation

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# krb5_auth_con_getsendsubkey - Retrieve the send subkey from an auth context as a keyblock.

krb5_error_code krb5_auth_con_getsendsubkey(krb5_context ctx, krb5_auth_context ac, krb5_keyblock **keyblock)

param

  [in] ctx - Library context

  [in] ac - Authentication context

  [out] keyblock - Send subkey

retval

  - 0 Success; otherwise - Kerberos error codes

This function creates a keyblock containing the send subkey from auth_context . Use `krb5_free_keyblock()` to free keyblock when it is no longer needed.