xref: /freebsd/crypto/krb5/doc/html/_sources/appdev/refs/api/krb5_mk_priv.rst.txt (revision 7f2fe78b9dd5f51c821d771b63d2e096f6fd49e9)
1krb5_mk_priv -  Format a KRB-PRIV message.
2===========================================
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6.. c:function:: krb5_error_code krb5_mk_priv(krb5_context context, krb5_auth_context auth_context, const krb5_data * userdata, krb5_data * der_out, krb5_replay_data * rdata_out)
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11:param:
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13	          **[in]** **context** - Library context
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15	          **[in]** **auth_context** - Authentication context
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17	          **[in]** **userdata** - User data for **KRB-PRIV** message
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19	          **[out]** **der_out** - Formatted **KRB-PRIV** message
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21	          **[out]** **rdata_out** - Replay data (NULL if not needed)
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27:retval:
28         -   0   Success; otherwise - Kerberos error codes
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39This function is similar to krb5_mk_safe(), but the message is encrypted and integrity-protected, not just integrity-protected.
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43The local address in *auth_context* must be set, and is used to form the sender address used in the KRB-PRIV message. The remote address is optional; if specified, it will be used to form the receiver address used in the message.
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47If the #KRB5_AUTH_CONTEXT_DO_TIME flag is set in *auth_context* , a timestamp is included in the KRB-PRIV message, and an entry for the message is entered in an in-memory replay cache to detect if the message is reflected by an attacker. If #KRB5_AUTH_CONTEXT_DO_TIME is not set, no replay cache is used. If #KRB5_AUTH_CONTEXT_RET_TIME is set in *auth_context* , a timestamp is included in the KRB-PRIV message and is stored in *rdata_out* .
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51If either #KRB5_AUTH_CONTEXT_DO_SEQUENCE or #KRB5_AUTH_CONTEXT_RET_SEQUENCE is set, the *auth_context* local sequence number is included in the KRB-PRIV message and then incremented. If #KRB5_AUTH_CONTEXT_RET_SEQUENCE is set, the sequence number used is stored in *rdata_out* .
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55Use krb5_free_data_contents() to free *der_out* when it is no longer needed.
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73.. note::
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75	 The *rdata_out* argument is required if the #KRB5_AUTH_CONTEXT_RET_TIME or #KRB5_AUTH_CONTEXT_RET_SEQUENCE flag is set in *auth_context* .
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