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5.7.1. KRB_PRIV definition Connected: An Internet Encyclopedia
5.7.1. KRB_PRIV definition

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5.7.1. KRB_PRIV definition

5.7.1. KRB_PRIV definition

The KRB_PRIV message contains user data encrypted in the Session Key. The message fields are:

   KRB-PRIV ::=         [APPLICATION 21] SEQUENCE {
                pvno[0]                   INTEGER,
                msg-type[1]               INTEGER,
                enc-part[3]               EncryptedData
   }

   EncKrbPrivPart ::=   [APPLICATION 28] SEQUENCE {
                user-data[0]              OCTET STRING,
                timestamp[1]              KerberosTime OPTIONAL,
                usec[2]                   INTEGER OPTIONAL,
                seq-number[3]             INTEGER OPTIONAL,
                s-address[4]              HostAddress, -- sender's addr
                r-address[5]              HostAddress OPTIONAL
                                                      -- recip's addr
   }

NOTE: In EncKrbPrivPart, the application code in the encrypted part of a message provides an additional check that the message was decrypted properly.

pvno and msg-type

These fields are described above in section 5.4.1. msg-type is KRB_PRIV.

enc-part

This field holds an encoding of the EncKrbPrivPart sequence encrypted under the session key (If supported by the encryption method in use, an initialization vector may be passed to the encryption procedure, in order to achieve proper cipher chaining. The initialization vector might come from the last block of the ciphertext from the previous KRB_PRIV message, but it is the application's choice whether or not to use such an initialization vector. If left out, the default initialization vector for the encryption algorithm will be used.). This encrypted encoding is used for the enc-part field of the KRB-PRIV message. See section 6 for the format of the ciphertext.

user-data, timestamp, usec, s-address and r-address

These fields are described above in section 5.6.1.

seq-number

This field is described above in section 5.3.2.


Next: 5.8. KRB_CRED message specification

Connected: An Internet Encyclopedia
5.7.1. KRB_PRIV definition

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