Source file src/github.com/digitorus/timestamp/rfc3161_struct.go

Documentation: github.com/digitorus/timestamp

     1  package timestamp
     2  
     3  import (
     4  	"crypto/x509/pkix"
     5  	"encoding/asn1"
     6  	"math/big"
     7  	"time"
     8  )
     9  
    10  // http://www.ietf.org/rfc/rfc3161.txt
    11  // 2.4.1. Request Format
    12  type request struct {
    13  	Version        int
    14  	MessageImprint messageImprint
    15  	ReqPolicy      asn1.ObjectIdentifier `asn1:"optional"`
    16  	Nonce          *big.Int              `asn1:"optional"`
    17  	CertReq        bool                  `asn1:"optional,default:false"`
    18  	Extensions     []pkix.Extension      `asn1:"tag:0,optional"`
    19  }
    20  
    21  type messageImprint struct {
    22  	HashAlgorithm pkix.AlgorithmIdentifier
    23  	HashedMessage []byte
    24  }
    25  
    26  // 2.4.2. Response Format
    27  type response struct {
    28  	Status         pkiStatusInfo
    29  	TimeStampToken asn1.RawValue `asn1:"optional"`
    30  }
    31  
    32  type pkiStatusInfo struct {
    33  	Status       Status
    34  	StatusString []string       `asn1:"optional,utf8"`
    35  	FailInfo     asn1.BitString `asn1:"optional"`
    36  }
    37  
    38  func (s pkiStatusInfo) FailureInfo() FailureInfo {
    39  	fi := []FailureInfo{BadAlgorithm, BadRequest, BadDataFormat, TimeNotAvailable,
    40  		UnacceptedPolicy, UnacceptedExtension, AddInfoNotAvailable, SystemFailure}
    41  
    42  	for _, f := range fi {
    43  		if s.FailInfo.At(int(f)) != 0 {
    44  			return f
    45  		}
    46  	}
    47  
    48  	return UnknownFailureInfo
    49  }
    50  
    51  // eContent within SignedData is TSTInfo
    52  type tstInfo struct {
    53  	Version        int
    54  	Policy         asn1.ObjectIdentifier
    55  	MessageImprint messageImprint
    56  	SerialNumber   *big.Int
    57  	Time           time.Time        `asn1:"generalized"`
    58  	Accuracy       accuracy         `asn1:"optional"`
    59  	Ordering       bool             `asn1:"optional,default:false"`
    60  	Nonce          *big.Int         `asn1:"optional"`
    61  	TSA            asn1.RawValue    `asn1:"tag:0,optional"`
    62  	Extensions     []pkix.Extension `asn1:"tag:1,optional"`
    63  }
    64  
    65  // accuracy within TSTInfo
    66  type accuracy struct {
    67  	Seconds      int64 `asn1:"optional"`
    68  	Milliseconds int64 `asn1:"tag:0,optional"`
    69  	Microseconds int64 `asn1:"tag:1,optional"`
    70  }
    71  
    72  type qcStatement struct {
    73  	StatementID   asn1.ObjectIdentifier
    74  	StatementInfo asn1.RawValue `asn1:"optional"`
    75  }
    76  

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