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8.3. Protocol constants and associated values The following tables list constants used in the protocol and defines their meanings. ---------------+-----------+----------+----------------+--------------- Encryption type|etype value|block size|minimum pad size|confounder size ---------------+-----------+----------+----------------+--------------- NULL 0 1 0 0 des-cbc-crc 1 8 4 8 des-cbc-md4 2 8 0 8 des-cbc-md5 3 8 0 8 <reserved> 4 des3-cbc-md5 5 8 0 8 <reserved> 6 des3-cbc-sha1 7 8 0 8 <reserved> 0x8003 -------------------------------+-------------------+------------- Checksum type |sumtype value |checksum size -------------------------------+-------------------+------------- CRC32 1 4 rsa-md4 2 16 rsa-md4-des 3 24 des-mac 4 16 des-mac-k 5 8 rsa-md4-des-k 6 16 rsa-md5 7 16 rsa-md5-des 8 24 <reserved> 9 <reserved> 10 nist-sha1 11 20 hmac-sha1-des3 12 20 -------------------------------+----------------- padata type |padata-type value -------------------------------+----------------- PA-TGS-REQ 1 PA-ENC-TIMESTAMP 2 PA-PW-SALT 3 <reserved> 4 PA-ENC-UNIX-TIME 5 PA-SANDIA-SECUREID 6 PA-SESAME 7 PA-OSF-DCE 8 PA-CYBERSAFE-SECUREID 9 PA-AFS3-SALT 10 PA-ETYPE-INFO 11 PAM-SAM-CHALLENGE 12 PAM-SAM-RESPONSE 13 -------------------------------+------------- authorization data type |ad-type value -------------------------------+------------- reserved values 0-63 AD-OSF-DCE 64 AD-SESAME 65 -------------------------------+----------------- alternate authentication type |method-type value -------------------------------+----------------- reserved values 0-63 ATT-CHALLENGE-RESPONSE 64 -------------------------------+------------- transited encoding type |tr-type value -------------------------------+------------- DOMAIN-X500-COMPRESS 1 reserved values all others --------------+-------+----------------------------------------- Label |Value |Meaning or MIT code --------------+-------+----------------------------------------- pvno 5 current Kerberos protocol version number message types KRB_AS_REQ 10 Request for initial authentication KRB_AS_REP 11 Response to KRB_AS_REQ request KRB_TGS_REQ 12 Request for authentication based on TGT KRB_TGS_REP 13 Response to KRB_TGS_REQ request KRB_AP_REQ 14 application request to server KRB_AP_REP 15 Response to KRB_AP_REQ_MUTUAL KRB_SAFE 20 Safe (checksummed) application message KRB_PRIV 21 Private (encrypted) application message KRB_CRED 22 Private (encrypted) message to forward credentials KRB_ERROR 30 Error response name types KRB_NT_UNKNOWN 0 Name type not known KRB_NT_PRINCIPAL 1 Just the name of the principal as in DCE, or for users KRB_NT_SRV_INST 2 Service and other unique instance (krbtgt) KRB_NT_SRV_HST 3 Service with host name as instance (telnet, rcommands) KRB_NT_SRV_XHST 4 Service with host as remaining components KRB_NT_UID 5 Unique ID error codes KDC_ERR_NONE 0 No error KDC_ERR_NAME_EXP 1 Client's entry in database has expired KDC_ERR_SERVICE_EXP 2 Server's entry in database has expired KDC_ERR_BAD_PVNO 3 Requested protocol version # not supported KDC_ERR_C_OLD_MAST_KVNO 4 Client's key encrypted in old master key KDC_ERR_S_OLD_MAST_KVNO 5 Server's key encrypted in old master key KDC_ERR_C_PRINCIPAL_UNKNOWN 6 Client not found in Kerberos database KDC_ERR_S_PRINCIPAL_UNKNOWN 7 Server not found in Kerberos database KDC_ERR_PRINCIPAL_NOT_UNIQUE 8 Multiple principal entries in database KDC_ERR_NULL_KEY 9 The client or server has a null key KDC_ERR_CANNOT_POSTDATE 10 Ticket not eligible for postdating KDC_ERR_NEVER_VALID 11 Requested start time is later than end time KDC_ERR_POLICY 12 KDC policy rejects request KDC_ERR_BADOPTION 13 KDC cannot accommodate requested option KDC_ERR_ETYPE_NOSUPP 14 KDC has no support for encryption type KDC_ERR_SUMTYPE_NOSUPP 15 KDC has no support for checksum type KDC_ERR_PADATA_TYPE_NOSUPP 16 KDC has no support for padata type KDC_ERR_TRTYPE_NOSUPP 17 KDC has no support for transited type KDC_ERR_CLIENT_REVOKED 18 Clients credentials have been revoked KDC_ERR_SERVICE_REVOKED 19 Credentials for server have been revoked KDC_ERR_TGT_REVOKED 20 TGT has been revoked KDC_ERR_CLIENT_NOTYET 21 Client not yet valid - try again later KDC_ERR_SERVICE_NOTYET 22 Server not yet valid - try again later KDC_ERR_KEY_EXPIRED 23 Password has expired - change to reset KDC_ERR_PREAUTH_FAILED 24 Pre-authentication information was invalid KDC_ERR_PREAUTH_REQUIRED 25 Additional pre-authentication required* KDC_ERR_SERVER_NOMATCH 26 Requested server and ticket don't match KDC_ERR_MUST_USE_USER2USER 27 Server principal valid for user2user only KRB_AP_ERR_BAD_INTEGRITY 31 Integrity check on decrypted field failed KRB_AP_ERR_TKT_EXPIRED 32 Ticket expired KRB_AP_ERR_TKT_NYV 33 Ticket not yet valid KRB_AP_ERR_REPEAT 34 Request is a replay KRB_AP_ERR_NOT_US 35 The ticket isn't for us KRB_AP_ERR_BADMATCH 36 Ticket and authenticator don't match KRB_AP_ERR_SKEW 37 Clock skew too great KRB_AP_ERR_BADADDR 38 Incorrect net address KRB_AP_ERR_BADVERSION 39 Protocol version mismatch KRB_AP_ERR_MSG_TYPE 40 Invalid msg type KRB_AP_ERR_MODIFIED 41 Message stream modified KRB_AP_ERR_BADORDER 42 Message out of order KRB_AP_ERR_BADKEYVER 44 Specified version of key is not available KRB_AP_ERR_NOKEY 45 Service key not available KRB_AP_ERR_MUT_FAIL 46 Mutual authentication failed KRB_AP_ERR_BADDIRECTION 47 Incorrect message direction KRB_AP_ERR_METHOD 48 Alternative authentication method required* KRB_AP_ERR_BADSEQ 49 Incorrect sequence number in message KRB_AP_ERR_INAPP_CKSUM 50 Inappropriate type of checksum in message KRB_ERR_GENERIC 60 Generic error (description in e-text) KRB_ERR_FIELD_TOOLONG 61 Field is too long for this implementation *This error carries additional information in the e-data field. The contents of the e-data field for this message is described in section 5.9.1.
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