Documentation

Overview

    Package messages implements Kerberos 5 message types and methods.

    Index

    Constants

    This section is empty.

    Variables

    This section is empty.

    Functions

    func MarshalTicketSequence

    func MarshalTicketSequence(tkts []Ticket) (asn1.RawValue, error)

      MarshalTicketSequence marshals a slice of Tickets returning an ASN1 raw value containing the ticket sequence.

      Types

      type APRep

      type APRep struct {
      	PVNO    int                 `asn1:"explicit,tag:0"`
      	MsgType int                 `asn1:"explicit,tag:1"`
      	EncPart types.EncryptedData `asn1:"explicit,tag:2"`
      }

        APRep implements RFC 4120 KRB_AP_REP: https://tools.ietf.org/html/rfc4120#section-5.5.2.

        func (*APRep) Unmarshal

        func (a *APRep) Unmarshal(b []byte) error

          Unmarshal bytes b into the APRep struct.

          type APReq

          type APReq struct {
          	PVNO                   int                 `asn1:"explicit,tag:0"`
          	MsgType                int                 `asn1:"explicit,tag:1"`
          	APOptions              asn1.BitString      `asn1:"explicit,tag:2"`
          	Ticket                 Ticket              `asn1:"explicit,tag:3"`
          	EncryptedAuthenticator types.EncryptedData `asn1:"explicit,tag:4"`
          	Authenticator          types.Authenticator `asn1:"optional"`
          }

            APReq implements RFC 4120 KRB_AP_REQ: https://tools.ietf.org/html/rfc4120#section-5.5.1.

            func NewAPReq

            func NewAPReq(tkt Ticket, sessionKey types.EncryptionKey, auth types.Authenticator) (APReq, error)

              NewAPReq generates a new KRB_AP_REQ struct.

              func (*APReq) DecryptAuthenticator

              func (a *APReq) DecryptAuthenticator(sessionKey types.EncryptionKey) error

                DecryptAuthenticator decrypts the Authenticator within the AP_REQ. sessionKey may simply be the key within the decrypted EncPart of the ticket within the AP_REQ.

                func (*APReq) Marshal

                func (a *APReq) Marshal() ([]byte, error)

                  Marshal APReq struct.

                  func (*APReq) Unmarshal

                  func (a *APReq) Unmarshal(b []byte) error

                    Unmarshal bytes b into the APReq struct.

                    func (*APReq) Verify

                    func (a *APReq) Verify(kt *keytab.Keytab, d time.Duration, cAddr types.HostAddress, snameOverride *types.PrincipalName) (bool, error)

                      Verify an AP_REQ using service's keytab, spn and max acceptable clock skew duration. The service ticket encrypted part and authenticator will be decrypted as part of this operation.

                      type ASRep

                      type ASRep struct {
                      	KDCRepFields
                      }

                        ASRep implements RFC 4120 KRB_AS_REP: https://tools.ietf.org/html/rfc4120#section-5.4.2.

                        func (*ASRep) DecryptEncPart

                        func (k *ASRep) DecryptEncPart(c *credentials.Credentials) (types.EncryptionKey, error)

                          DecryptEncPart decrypts the encrypted part of an AS_REP.

                          func (*ASRep) Marshal

                          func (k *ASRep) Marshal() ([]byte, error)

                            Marshal ASRep struct.

                            func (*ASRep) Unmarshal

                            func (k *ASRep) Unmarshal(b []byte) error

                              Unmarshal bytes b into the ASRep struct.

                              func (*ASRep) Verify

                              func (k *ASRep) Verify(cfg *config.Config, creds *credentials.Credentials, asReq ASReq) (bool, error)

                                Verify checks the validity of AS_REP message.

                                type ASReq

                                type ASReq struct {
                                	KDCReqFields
                                }

                                  ASReq implements RFC 4120 KRB_AS_REQ: https://tools.ietf.org/html/rfc4120#section-5.4.1.

                                  func NewASReq

                                  func NewASReq(realm string, c *config.Config, cname, sname types.PrincipalName) (ASReq, error)

                                    NewASReq generates a new KRB_AS_REQ struct for a given SNAME.

                                    func NewASReqForChgPasswd

                                    func NewASReqForChgPasswd(realm string, c *config.Config, cname types.PrincipalName) (ASReq, error)

                                      NewASReqForChgPasswd generates a new KRB_AS_REQ struct for a change password request.

                                      func NewASReqForTGT

                                      func NewASReqForTGT(realm string, c *config.Config, cname types.PrincipalName) (ASReq, error)

                                        NewASReqForTGT generates a new KRB_AS_REQ struct for a TGT request.

                                        func (*ASReq) Marshal

                                        func (k *ASReq) Marshal() ([]byte, error)

                                          Marshal ASReq struct.

                                          func (*ASReq) Unmarshal

                                          func (k *ASReq) Unmarshal(b []byte) error

                                            Unmarshal bytes b into the ASReq struct.

                                            type EncAPRepPart

                                            type EncAPRepPart struct {
                                            	CTime          time.Time           `asn1:"generalized,explicit,tag:0"`
                                            	Cusec          int                 `asn1:"explicit,tag:1"`
                                            	Subkey         types.EncryptionKey `asn1:"optional,explicit,tag:2"`
                                            	SequenceNumber int64               `asn1:"optional,explicit,tag:3"`
                                            }

                                              EncAPRepPart is the encrypted part of KRB_AP_REP.

                                              func (*EncAPRepPart) Unmarshal

                                              func (a *EncAPRepPart) Unmarshal(b []byte) error

                                                Unmarshal bytes b into the APRep encrypted part struct.

                                                type EncKDCRepPart

                                                type EncKDCRepPart struct {
                                                	Key           types.EncryptionKey  `asn1:"explicit,tag:0"`
                                                	LastReqs      []LastReq            `asn1:"explicit,tag:1"`
                                                	Nonce         int                  `asn1:"explicit,tag:2"`
                                                	KeyExpiration time.Time            `asn1:"generalized,explicit,optional,tag:3"`
                                                	Flags         asn1.BitString       `asn1:"explicit,tag:4"`
                                                	AuthTime      time.Time            `asn1:"generalized,explicit,tag:5"`
                                                	StartTime     time.Time            `asn1:"generalized,explicit,optional,tag:6"`
                                                	EndTime       time.Time            `asn1:"generalized,explicit,tag:7"`
                                                	RenewTill     time.Time            `asn1:"generalized,explicit,optional,tag:8"`
                                                	SRealm        string               `asn1:"generalstring,explicit,tag:9"`
                                                	SName         types.PrincipalName  `asn1:"explicit,tag:10"`
                                                	CAddr         []types.HostAddress  `asn1:"explicit,optional,tag:11"`
                                                	EncPAData     types.PADataSequence `asn1:"explicit,optional,tag:12"`
                                                }

                                                  EncKDCRepPart is the encrypted part of KRB_KDC_REP.

                                                  func (*EncKDCRepPart) Marshal

                                                  func (e *EncKDCRepPart) Marshal() ([]byte, error)

                                                    Marshal encrypted part of KRB_KDC_REP.

                                                    func (*EncKDCRepPart) Unmarshal

                                                    func (e *EncKDCRepPart) Unmarshal(b []byte) error

                                                      Unmarshal bytes b into encrypted part of KRB_KDC_REP.

                                                      type EncKrbCredPart

                                                      type EncKrbCredPart struct {
                                                      	TicketInfo []KrbCredInfo     `asn1:"explicit,tag:0"`
                                                      	Nouce      int               `asn1:"optional,explicit,tag:1"`
                                                      	Timestamp  time.Time         `asn1:"generalized,optional,explicit,tag:2"`
                                                      	Usec       int               `asn1:"optional,explicit,tag:3"`
                                                      	SAddress   types.HostAddress `asn1:"optional,explicit,tag:4"`
                                                      	RAddress   types.HostAddress `asn1:"optional,explicit,tag:5"`
                                                      }

                                                        EncKrbCredPart is the encrypted part of KRB_CRED.

                                                        func (*EncKrbCredPart) Unmarshal

                                                        func (k *EncKrbCredPart) Unmarshal(b []byte) error

                                                          Unmarshal bytes b into the encrypted part of KRB_CRED.

                                                          type EncKrbPrivPart

                                                          type EncKrbPrivPart struct {
                                                          	UserData       []byte            `asn1:"explicit,tag:0"`
                                                          	Timestamp      time.Time         `asn1:"generalized,optional,explicit,tag:1"`
                                                          	Usec           int               `asn1:"optional,explicit,tag:2"`
                                                          	SequenceNumber int64             `asn1:"optional,explicit,tag:3"`
                                                          	SAddress       types.HostAddress `asn1:"explicit,tag:4"`
                                                          	RAddress       types.HostAddress `asn1:"optional,explicit,tag:5"`
                                                          }

                                                            EncKrbPrivPart is the encrypted part of KRB_PRIV.

                                                            func (*EncKrbPrivPart) Unmarshal

                                                            func (k *EncKrbPrivPart) Unmarshal(b []byte) error

                                                              Unmarshal bytes b into the EncKrbPrivPart struct.

                                                              type EncTicketPart

                                                              type EncTicketPart struct {
                                                              	Flags             asn1.BitString          `asn1:"explicit,tag:0"`
                                                              	Key               types.EncryptionKey     `asn1:"explicit,tag:1"`
                                                              	CRealm            string                  `asn1:"generalstring,explicit,tag:2"`
                                                              	CName             types.PrincipalName     `asn1:"explicit,tag:3"`
                                                              	Transited         TransitedEncoding       `asn1:"explicit,tag:4"`
                                                              	AuthTime          time.Time               `asn1:"generalized,explicit,tag:5"`
                                                              	StartTime         time.Time               `asn1:"generalized,explicit,optional,tag:6"`
                                                              	EndTime           time.Time               `asn1:"generalized,explicit,tag:7"`
                                                              	RenewTill         time.Time               `asn1:"generalized,explicit,optional,tag:8"`
                                                              	CAddr             types.HostAddresses     `asn1:"explicit,optional,tag:9"`
                                                              	AuthorizationData types.AuthorizationData `asn1:"explicit,optional,tag:10"`
                                                              }

                                                                EncTicketPart is the encrypted part of the Ticket.

                                                                func (*EncTicketPart) Unmarshal

                                                                func (t *EncTicketPart) Unmarshal(b []byte) error

                                                                  Unmarshal bytes b into the EncTicketPart struct.

                                                                  type KDCRepFields

                                                                  type KDCRepFields struct {
                                                                  	PVNO             int
                                                                  	MsgType          int
                                                                  	PAData           []types.PAData
                                                                  	CRealm           string
                                                                  	CName            types.PrincipalName
                                                                  	Ticket           Ticket
                                                                  	EncPart          types.EncryptedData
                                                                  	DecryptedEncPart EncKDCRepPart
                                                                  }

                                                                    KDCRepFields represents the KRB_KDC_REP fields.

                                                                    type KDCReqBody

                                                                    type KDCReqBody struct {
                                                                    	KDCOptions        asn1.BitString      `asn1:"explicit,tag:0"`
                                                                    	CName             types.PrincipalName `asn1:"explicit,optional,tag:1"`
                                                                    	Realm             string              `asn1:"generalstring,explicit,tag:2"`
                                                                    	SName             types.PrincipalName `asn1:"explicit,optional,tag:3"`
                                                                    	From              time.Time           `asn1:"generalized,explicit,optional,tag:4"`
                                                                    	Till              time.Time           `asn1:"generalized,explicit,tag:5"`
                                                                    	RTime             time.Time           `asn1:"generalized,explicit,optional,tag:6"`
                                                                    	Nonce             int                 `asn1:"explicit,tag:7"`
                                                                    	EType             []int32             `asn1:"explicit,tag:8"`
                                                                    	Addresses         []types.HostAddress `asn1:"explicit,optional,tag:9"`
                                                                    	EncAuthData       types.EncryptedData `asn1:"explicit,optional,tag:10"`
                                                                    	AdditionalTickets []Ticket            `asn1:"explicit,optional,tag:11"`
                                                                    }

                                                                      KDCReqBody implements the KRB_KDC_REQ request body.

                                                                      func (*KDCReqBody) Marshal

                                                                      func (k *KDCReqBody) Marshal() ([]byte, error)

                                                                        Marshal KRB_KDC_REQ body struct.

                                                                        func (*KDCReqBody) Unmarshal

                                                                        func (k *KDCReqBody) Unmarshal(b []byte) error

                                                                          Unmarshal bytes b into the KRB_KDC_REQ body struct.

                                                                          type KDCReqFields

                                                                          type KDCReqFields struct {
                                                                          	PVNO    int
                                                                          	MsgType int
                                                                          	PAData  types.PADataSequence
                                                                          	ReqBody KDCReqBody
                                                                          	Renewal bool
                                                                          }

                                                                            KDCReqFields represents the KRB_KDC_REQ fields.

                                                                            type KRBCred

                                                                            type KRBCred struct {
                                                                            	PVNO             int
                                                                            	MsgType          int
                                                                            	Tickets          []Ticket
                                                                            	EncPart          types.EncryptedData
                                                                            	DecryptedEncPart EncKrbCredPart
                                                                            }

                                                                              KRBCred implements RFC 4120 KRB_CRED: https://tools.ietf.org/html/rfc4120#section-5.8.1.

                                                                              func (*KRBCred) DecryptEncPart

                                                                              func (k *KRBCred) DecryptEncPart(key types.EncryptionKey) error

                                                                                DecryptEncPart decrypts the encrypted part of a KRB_CRED.

                                                                                func (*KRBCred) Unmarshal

                                                                                func (k *KRBCred) Unmarshal(b []byte) error

                                                                                  Unmarshal bytes b into the KRBCred struct.

                                                                                  type KRBError

                                                                                  type KRBError struct {
                                                                                  	PVNO      int                 `asn1:"explicit,tag:0"`
                                                                                  	MsgType   int                 `asn1:"explicit,tag:1"`
                                                                                  	CTime     time.Time           `asn1:"generalized,optional,explicit,tag:2"`
                                                                                  	Cusec     int                 `asn1:"optional,explicit,tag:3"`
                                                                                  	STime     time.Time           `asn1:"generalized,explicit,tag:4"`
                                                                                  	Susec     int                 `asn1:"explicit,tag:5"`
                                                                                  	ErrorCode int32               `asn1:"explicit,tag:6"`
                                                                                  	CRealm    string              `asn1:"generalstring,optional,explicit,tag:7"`
                                                                                  	CName     types.PrincipalName `asn1:"optional,explicit,tag:8"`
                                                                                  	Realm     string              `asn1:"generalstring,explicit,tag:9"`
                                                                                  	SName     types.PrincipalName `asn1:"explicit,tag:10"`
                                                                                  	EText     string              `asn1:"generalstring,optional,explicit,tag:11"`
                                                                                  	EData     []byte              `asn1:"optional,explicit,tag:12"`
                                                                                  }

                                                                                    KRBError implements RFC 4120 KRB_ERROR: https://tools.ietf.org/html/rfc4120#section-5.9.1.

                                                                                    func NewKRBError

                                                                                    func NewKRBError(sname types.PrincipalName, realm string, code int32, etext string) KRBError

                                                                                      NewKRBError creates a new KRBError.

                                                                                      func (KRBError) Error

                                                                                      func (k KRBError) Error() string

                                                                                        Error method implementing error interface on KRBError struct.

                                                                                        func (*KRBError) Marshal

                                                                                        func (k *KRBError) Marshal() ([]byte, error)

                                                                                          Marshal a KRBError into bytes.

                                                                                          func (*KRBError) Unmarshal

                                                                                          func (k *KRBError) Unmarshal(b []byte) error

                                                                                            Unmarshal bytes b into the KRBError struct.

                                                                                            type KRBPriv

                                                                                            type KRBPriv struct {
                                                                                            	PVNO             int                 `asn1:"explicit,tag:0"`
                                                                                            	MsgType          int                 `asn1:"explicit,tag:1"`
                                                                                            	EncPart          types.EncryptedData `asn1:"explicit,tag:3"`
                                                                                            	DecryptedEncPart EncKrbPrivPart      `asn1:"optional,omitempty"` // Not part of ASN1 bytes so marked as optional so unmarshalling works
                                                                                            }

                                                                                              KRBPriv implements RFC 4120 type: https://tools.ietf.org/html/rfc4120#section-5.7.1.

                                                                                              func NewKRBPriv

                                                                                              func NewKRBPriv(part EncKrbPrivPart) KRBPriv

                                                                                                NewKRBPriv returns a new KRBPriv type.

                                                                                                func (*KRBPriv) DecryptEncPart

                                                                                                func (k *KRBPriv) DecryptEncPart(key types.EncryptionKey) error

                                                                                                  DecryptEncPart decrypts the encrypted part of the KRBPriv message.

                                                                                                  func (*KRBPriv) EncryptEncPart

                                                                                                  func (k *KRBPriv) EncryptEncPart(key types.EncryptionKey) error

                                                                                                    EncryptEncPart encrypts the DecryptedEncPart within the KRBPriv. Use to prepare for marshaling.

                                                                                                    func (*KRBPriv) Marshal

                                                                                                    func (k *KRBPriv) Marshal() ([]byte, error)

                                                                                                      Marshal the KRBPriv.

                                                                                                      func (*KRBPriv) Unmarshal

                                                                                                      func (k *KRBPriv) Unmarshal(b []byte) error

                                                                                                        Unmarshal bytes b into the KRBPriv struct.

                                                                                                        type KRBSafe

                                                                                                        type KRBSafe struct {
                                                                                                        	PVNO     int            `asn1:"explicit,tag:0"`
                                                                                                        	MsgType  int            `asn1:"explicit,tag:1"`
                                                                                                        	SafeBody KRBSafeBody    `asn1:"explicit,tag:2"`
                                                                                                        	Cksum    types.Checksum `asn1:"explicit,tag:3"`
                                                                                                        }

                                                                                                          KRBSafe implements RFC 4120 KRB_SAFE: https://tools.ietf.org/html/rfc4120#section-5.6.1.

                                                                                                          func (*KRBSafe) Unmarshal

                                                                                                          func (s *KRBSafe) Unmarshal(b []byte) error

                                                                                                            Unmarshal bytes b into the KRBSafe struct.

                                                                                                            type KRBSafeBody

                                                                                                            type KRBSafeBody struct {
                                                                                                            	UserData       []byte            `asn1:"explicit,tag:0"`
                                                                                                            	Timestamp      time.Time         `asn1:"generalized,optional,explicit,tag:1"`
                                                                                                            	Usec           int               `asn1:"optional,explicit,tag:2"`
                                                                                                            	SequenceNumber int64             `asn1:"optional,explicit,tag:3"`
                                                                                                            	SAddress       types.HostAddress `asn1:"explicit,tag:4"`
                                                                                                            	RAddress       types.HostAddress `asn1:"optional,explicit,tag:5"`
                                                                                                            }

                                                                                                              KRBSafeBody implements the KRB_SAFE_BODY of KRB_SAFE.

                                                                                                              type KrbCredInfo

                                                                                                              type KrbCredInfo struct {
                                                                                                              	Key       types.EncryptionKey `asn1:"explicit,tag:0"`
                                                                                                              	PRealm    string              `asn1:"generalstring,optional,explicit,tag:1"`
                                                                                                              	PName     types.PrincipalName `asn1:"optional,explicit,tag:2"`
                                                                                                              	Flags     asn1.BitString      `asn1:"optional,explicit,tag:3"`
                                                                                                              	AuthTime  time.Time           `asn1:"generalized,optional,explicit,tag:4"`
                                                                                                              	StartTime time.Time           `asn1:"generalized,optional,explicit,tag:5"`
                                                                                                              	EndTime   time.Time           `asn1:"generalized,optional,explicit,tag:6"`
                                                                                                              	RenewTill time.Time           `asn1:"generalized,optional,explicit,tag:7"`
                                                                                                              	SRealm    string              `asn1:"optional,explicit,ia5,tag:8"`
                                                                                                              	SName     types.PrincipalName `asn1:"optional,explicit,tag:9"`
                                                                                                              	CAddr     types.HostAddresses `asn1:"optional,explicit,tag:10"`
                                                                                                              }

                                                                                                                KrbCredInfo is the KRB_CRED_INFO part of KRB_CRED.

                                                                                                                type LastReq

                                                                                                                type LastReq struct {
                                                                                                                	LRType  int32     `asn1:"explicit,tag:0"`
                                                                                                                	LRValue time.Time `asn1:"generalized,explicit,tag:1"`
                                                                                                                }

                                                                                                                  LastReq part of KRB_KDC_REP.

                                                                                                                  type TGSRep

                                                                                                                  type TGSRep struct {
                                                                                                                  	KDCRepFields
                                                                                                                  }

                                                                                                                    TGSRep implements RFC 4120 KRB_TGS_REP: https://tools.ietf.org/html/rfc4120#section-5.4.2.

                                                                                                                    func (*TGSRep) DecryptEncPart

                                                                                                                    func (k *TGSRep) DecryptEncPart(key types.EncryptionKey) error

                                                                                                                      DecryptEncPart decrypts the encrypted part of an TGS_REP.

                                                                                                                      func (*TGSRep) Marshal

                                                                                                                      func (k *TGSRep) Marshal() ([]byte, error)

                                                                                                                        Marshal TGSRep struct.

                                                                                                                        func (*TGSRep) Unmarshal

                                                                                                                        func (k *TGSRep) Unmarshal(b []byte) error

                                                                                                                          Unmarshal bytes b into the TGSRep struct.

                                                                                                                          func (*TGSRep) Verify

                                                                                                                          func (k *TGSRep) Verify(cfg *config.Config, tgsReq TGSReq) (bool, error)

                                                                                                                            Verify checks the validity of the TGS_REP message.

                                                                                                                            type TGSReq

                                                                                                                            type TGSReq struct {
                                                                                                                            	KDCReqFields
                                                                                                                            }

                                                                                                                              TGSReq implements RFC 4120 KRB_TGS_REQ: https://tools.ietf.org/html/rfc4120#section-5.4.1.

                                                                                                                              func NewTGSReq

                                                                                                                              func NewTGSReq(cname types.PrincipalName, kdcRealm string, c *config.Config, tgt Ticket, sessionKey types.EncryptionKey, sname types.PrincipalName, renewal bool) (TGSReq, error)

                                                                                                                                NewTGSReq generates a new KRB_TGS_REQ struct.

                                                                                                                                func NewUser2UserTGSReq

                                                                                                                                func NewUser2UserTGSReq(cname types.PrincipalName, kdcRealm string, c *config.Config, clientTGT Ticket, sessionKey types.EncryptionKey, sname types.PrincipalName, renewal bool, verifyingTGT Ticket) (TGSReq, error)

                                                                                                                                  NewUser2UserTGSReq returns a TGS-REQ suitable for user-to-user authentication (https://tools.ietf.org/html/rfc4120#section-3.7)

                                                                                                                                  func (*TGSReq) Marshal

                                                                                                                                  func (k *TGSReq) Marshal() ([]byte, error)

                                                                                                                                    Marshal TGSReq struct.

                                                                                                                                    func (*TGSReq) Unmarshal

                                                                                                                                    func (k *TGSReq) Unmarshal(b []byte) error

                                                                                                                                      Unmarshal bytes b into the TGSReq struct.

                                                                                                                                      type Ticket

                                                                                                                                      type Ticket struct {
                                                                                                                                      	TktVNO           int                 `asn1:"explicit,tag:0"`
                                                                                                                                      	Realm            string              `asn1:"generalstring,explicit,tag:1"`
                                                                                                                                      	SName            types.PrincipalName `asn1:"explicit,tag:2"`
                                                                                                                                      	EncPart          types.EncryptedData `asn1:"explicit,tag:3"`
                                                                                                                                      	DecryptedEncPart EncTicketPart       `asn1:"optional"` // Not part of ASN1 bytes so marked as optional so unmarshalling works
                                                                                                                                      }

                                                                                                                                        Ticket implements the Kerberos ticket.

                                                                                                                                        func NewTicket

                                                                                                                                        func NewTicket(cname types.PrincipalName, crealm string, sname types.PrincipalName, srealm string, flags asn1.BitString, sktab *keytab.Keytab, eTypeID int32, kvno int, authTime, startTime, endTime, renewTill time.Time) (Ticket, types.EncryptionKey, error)

                                                                                                                                          NewTicket creates a new Ticket instance.

                                                                                                                                          func (*Ticket) Decrypt

                                                                                                                                          func (t *Ticket) Decrypt(key types.EncryptionKey) error

                                                                                                                                            Decrypt decrypts the encrypted part of the ticket using the key provided.

                                                                                                                                            func (*Ticket) DecryptEncPart

                                                                                                                                            func (t *Ticket) DecryptEncPart(keytab *keytab.Keytab, sname *types.PrincipalName) error

                                                                                                                                              DecryptEncPart decrypts the encrypted part of the ticket. The sname argument can be used to specify which service principal's key should be used to decrypt the ticket. If nil is passed as the sname then the service principal specified within the ticket it used.

                                                                                                                                              func (*Ticket) GetPACType

                                                                                                                                              func (t *Ticket) GetPACType(keytab *keytab.Keytab, sname *types.PrincipalName, l *log.Logger) (bool, pac.PACType, error)

                                                                                                                                                GetPACType returns a Microsoft PAC that has been extracted from the ticket and processed.

                                                                                                                                                func (*Ticket) Marshal

                                                                                                                                                func (t *Ticket) Marshal() ([]byte, error)

                                                                                                                                                  Marshal the Ticket.

                                                                                                                                                  func (*Ticket) Unmarshal

                                                                                                                                                  func (t *Ticket) Unmarshal(b []byte) error

                                                                                                                                                    Unmarshal bytes b into a Ticket struct.

                                                                                                                                                    func (*Ticket) Valid

                                                                                                                                                    func (t *Ticket) Valid(d time.Duration) (bool, error)

                                                                                                                                                      Valid checks it the ticket is currently valid. Max duration passed endtime passed in as argument.

                                                                                                                                                      type TransitedEncoding

                                                                                                                                                      type TransitedEncoding struct {
                                                                                                                                                      	TRType   int32  `asn1:"explicit,tag:0"`
                                                                                                                                                      	Contents []byte `asn1:"explicit,tag:1"`
                                                                                                                                                      }

                                                                                                                                                        TransitedEncoding part of the ticket's encrypted part.