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#
# This file is part of pyasn1-modules software.
#
# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
# License: http://pyasn1.sf.net/license.html
#
# Certificate Management Protocol structures as per RFC4210
#
# Based on Alex Railean's work
#
from pyasn1.type import char
from pyasn1.type import constraint
from pyasn1.type import namedtype
from pyasn1.type import namedval
from pyasn1.type import tag
from pyasn1.type import univ
from pyasn1.type import useful
from pyasn1_modules import rfc2314
from pyasn1_modules import rfc2459
from pyasn1_modules import rfc2511
MAX = float('inf')
class KeyIdentifier(univ.OctetString):
pass
class CMPCertificate(rfc2459.Certificate):
pass
class OOBCert(CMPCertificate):
pass
class CertAnnContent(CMPCertificate):
pass
class PKIFreeText(univ.SequenceOf):
"""
PKIFreeText ::= SEQUENCE SIZE (1..MAX) OF UTF8String
"""
componentType = char.UTF8String()
subtypeSpec = univ.SequenceOf.subtypeSpec + constraint.ValueSizeConstraint(1, MAX)
class PollRepContent(univ.SequenceOf):
"""
PollRepContent ::= SEQUENCE OF SEQUENCE {
certReqId INTEGER,
checkAfter INTEGER, -- time in seconds
reason PKIFreeText OPTIONAL
}
"""
class CertReq(univ.Sequence):
componentType = namedtype.NamedTypes(
namedtype.NamedType('certReqId', univ.Integer()),
namedtype.NamedType('checkAfter', univ.Integer()),
namedtype.OptionalNamedType('reason', PKIFreeText())
)
componentType = CertReq()
class PollReqContent(univ.SequenceOf):
"""
PollReqContent ::= SEQUENCE OF SEQUENCE {
certReqId INTEGER
}
"""
class CertReq(univ.Sequence):
componentType = namedtype.NamedTypes(
namedtype.NamedType('certReqId', univ.Integer())
)
componentType = CertReq()
class InfoTypeAndValue(univ.Sequence):
"""
InfoTypeAndValue ::= SEQUENCE {
infoType OBJECT IDENTIFIER,
infoValue ANY DEFINED BY infoType OPTIONAL
}"""
componentType = namedtype.NamedTypes(
namedtype.NamedType('infoType', univ.ObjectIdentifier()),
namedtype.OptionalNamedType('infoValue', univ.Any())
)
class GenRepContent(univ.SequenceOf):
componentType = InfoTypeAndValue()
class GenMsgContent(univ.SequenceOf):
componentType = InfoTypeAndValue()
class PKIConfirmContent(univ.Null):
pass
class CRLAnnContent(univ.SequenceOf):
componentType = rfc2459.CertificateList()
class CAKeyUpdAnnContent(univ.Sequence):
"""
CAKeyUpdAnnContent ::= SEQUENCE {
oldWithNew CMPCertificate,
newWithOld CMPCertificate,
newWithNew CMPCertificate
}
"""
componentType = namedtype.NamedTypes(
namedtype.NamedType('oldWithNew', CMPCertificate()),
namedtype.NamedType('newWithOld', CMPCertificate()),
namedtype.NamedType('newWithNew', CMPCertificate())
)
class RevDetails(univ.Sequence):
"""
RevDetails ::= SEQUENCE {
certDetails CertTemplate,
crlEntryDetails Extensions OPTIONAL
}
"""
componentType = namedtype.NamedTypes(
namedtype.NamedType('certDetails', rfc2511.CertTemplate()),
namedtype.OptionalNamedType('crlEntryDetails', rfc2459.Extensions())
)
class RevReqContent(univ.SequenceOf):
componentType = RevDetails()
class CertOrEncCert(univ.Choice):
"""
CertOrEncCert ::= CHOICE {
certificate [0] CMPCertificate,
encryptedCert [1] EncryptedValue
}
"""
componentType = namedtype.NamedTypes(
namedtype.NamedType('certificate', CMPCertificate().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0))),
namedtype.NamedType('encryptedCert', rfc2511.EncryptedValue().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 1)))
)
class CertifiedKeyPair(univ.Sequence):
"""
CertifiedKeyPair ::= SEQUENCE {
certOrEncCert CertOrEncCert,
privateKey [0] EncryptedValue OPTIONAL,
publicationInfo [1] PKIPublicationInfo OPTIONAL
}
"""
componentType = namedtype.NamedTypes(
namedtype.NamedType('certOrEncCert', CertOrEncCert()),
namedtype.OptionalNamedType('privateKey', rfc2511.EncryptedValue().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0))),
namedtype.OptionalNamedType('publicationInfo', rfc2511.PKIPublicationInfo().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 1)))
)
class POPODecKeyRespContent(univ.SequenceOf):
componentType = univ.Integer()
class Challenge(univ.Sequence):
"""
Challenge ::= SEQUENCE {
owf AlgorithmIdentifier OPTIONAL,
witness OCTET STRING,
challenge OCTET STRING
}
"""
componentType = namedtype.NamedTypes(
namedtype.OptionalNamedType('owf', rfc2459.AlgorithmIdentifier()),
namedtype.NamedType('witness', univ.OctetString()),
namedtype.NamedType('challenge', univ.OctetString())
)
class PKIStatus(univ.Integer):
"""
PKIStatus ::= INTEGER {
accepted (0),
grantedWithMods (1),
rejection (2),
waiting (3),
revocationWarning (4),
revocationNotification (5),
keyUpdateWarning (6)
}
"""
namedValues = namedval.NamedValues(
('accepted', 0),
('grantedWithMods', 1),
('rejection', 2),
('waiting', 3),
('revocationWarning', 4),
('revocationNotification', 5),
('keyUpdateWarning', 6)
)
class PKIFailureInfo(univ.BitString):
"""
PKIFailureInfo ::= BIT STRING {
badAlg (0),
badMessageCheck (1),
badRequest (2),
badTime (3),
badCertId (4),
badDataFormat (5),
wrongAuthority (6),
incorrectData (7),
missingTimeStamp (8),
badPOP (9),
certRevoked (10),
certConfirmed (11),
wrongIntegrity (12),
badRecipientNonce (13),
timeNotAvailable (14),
unacceptedPolicy (15),
unacceptedExtension (16),
addInfoNotAvailable (17),
badSenderNonce (18),
badCertTemplate (19),
signerNotTrusted (20),
transactionIdInUse (21),
unsupportedVersion (22),
notAuthorized (23),
systemUnavail (24),
systemFailure (25),
duplicateCertReq (26)
"""
namedValues = namedval.NamedValues(
('badAlg', 0),
('badMessageCheck', 1),
('badRequest', 2),
('badTime', 3),
('badCertId', 4),
('badDataFormat', 5),
('wrongAuthority', 6),
('incorrectData', 7),
('missingTimeStamp', 8),
('badPOP', 9),
('certRevoked', 10),
('certConfirmed', 11),
('wrongIntegrity', 12),
('badRecipientNonce', 13),
('timeNotAvailable', 14),
('unacceptedPolicy', 15),
('unacceptedExtension', 16),
('addInfoNotAvailable', 17),
('badSenderNonce', 18),
('badCertTemplate', 19),
('signerNotTrusted', 20),
('transactionIdInUse', 21),
('unsupportedVersion', 22),
('notAuthorized', 23),
('systemUnavail', 24),
('systemFailure', 25),
('duplicateCertReq', 26)
)
class PKIStatusInfo(univ.Sequence):
"""
PKIStatusInfo ::= SEQUENCE {
status PKIStatus,
statusString PKIFreeText OPTIONAL,
failInfo PKIFailureInfo OPTIONAL
}
"""
componentType = namedtype.NamedTypes(
namedtype.NamedType('status', PKIStatus()),
namedtype.OptionalNamedType('statusString', PKIFreeText()),
namedtype.OptionalNamedType('failInfo', PKIFailureInfo())
)
class ErrorMsgContent(univ.Sequence):
"""
ErrorMsgContent ::= SEQUENCE {
pKIStatusInfo PKIStatusInfo,
errorCode INTEGER OPTIONAL,
-- implementation-specific error codes
errorDetails PKIFreeText OPTIONAL
-- implementation-specific error details
}
"""
componentType = namedtype.NamedTypes(
namedtype.NamedType('pKIStatusInfo', PKIStatusInfo()),
namedtype.OptionalNamedType('errorCode', univ.Integer()),
namedtype.OptionalNamedType('errorDetails', PKIFreeText())
)
class CertStatus(univ.Sequence):
"""
CertStatus ::= SEQUENCE {
certHash OCTET STRING,
certReqId INTEGER,
statusInfo PKIStatusInfo OPTIONAL
}
"""
componentType = namedtype.NamedTypes(
namedtype.NamedType('certHash', univ.OctetString()),
namedtype.NamedType('certReqId', univ.Integer()),
namedtype.OptionalNamedType('statusInfo', PKIStatusInfo())
)
class CertConfirmContent(univ.SequenceOf):
componentType = CertStatus()
class RevAnnContent(univ.Sequence):
"""
RevAnnContent ::= SEQUENCE {
status PKIStatus,
certId CertId,
willBeRevokedAt GeneralizedTime,
badSinceDate GeneralizedTime,
crlDetails Extensions OPTIONAL
}
"""
componentType = namedtype.NamedTypes(
namedtype.NamedType('status', PKIStatus()),
namedtype.NamedType('certId', rfc2511.CertId()),
namedtype.NamedType('willBeRevokedAt', useful.GeneralizedTime()),
namedtype.NamedType('badSinceDate', useful.GeneralizedTime()),
namedtype.OptionalNamedType('crlDetails', rfc2459.Extensions())
)
class RevRepContent(univ.Sequence):
"""
RevRepContent ::= SEQUENCE {
status SEQUENCE SIZE (1..MAX) OF PKIStatusInfo,
revCerts [0] SEQUENCE SIZE (1..MAX) OF CertId
OPTIONAL,
crls [1] SEQUENCE SIZE (1..MAX) OF CertificateList
OPTIONAL
"""
componentType = namedtype.NamedTypes(
namedtype.NamedType('status', PKIStatusInfo()),
namedtype.OptionalNamedType(
'revCerts', univ.SequenceOf(componentType=rfc2511.CertId()).subtype(
subtypeSpec=constraint.ValueSizeConstraint(1, MAX),
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0)
)
),
namedtype.OptionalNamedType(
'crls', univ.SequenceOf(componentType=rfc2459.CertificateList()).subtype(
subtypeSpec=constraint.ValueSizeConstraint(1, MAX),
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 1)
)
)
)
class KeyRecRepContent(univ.Sequence):
"""
KeyRecRepContent ::= SEQUENCE {
status PKIStatusInfo,
newSigCert [0] CMPCertificate OPTIONAL,
caCerts [1] SEQUENCE SIZE (1..MAX) OF
CMPCertificate OPTIONAL,
keyPairHist [2] SEQUENCE SIZE (1..MAX) OF
CertifiedKeyPair OPTIONAL
}
"""
componentType = namedtype.NamedTypes(
namedtype.NamedType('status', PKIStatusInfo()),
namedtype.OptionalNamedType(
'newSigCert', CMPCertificate().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0)
)
),
namedtype.OptionalNamedType(
'caCerts', univ.SequenceOf(componentType=CMPCertificate()).subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 1),
subtypeSpec=constraint.ValueSizeConstraint(1, MAX)
)
),
namedtype.OptionalNamedType('keyPairHist', univ.SequenceOf(componentType=CertifiedKeyPair()).subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 2),
subtypeSpec=constraint.ValueSizeConstraint(1, MAX))
)
)
class CertResponse(univ.Sequence):
"""
CertResponse ::= SEQUENCE {
certReqId INTEGER,
status PKIStatusInfo,
certifiedKeyPair CertifiedKeyPair OPTIONAL,
rspInfo OCTET STRING OPTIONAL
}
"""
componentType = namedtype.NamedTypes(
namedtype.NamedType('certReqId', univ.Integer()),
namedtype.NamedType('status', PKIStatusInfo()),
namedtype.OptionalNamedType('certifiedKeyPair', CertifiedKeyPair()),
namedtype.OptionalNamedType('rspInfo', univ.OctetString())
)
class CertRepMessage(univ.Sequence):
"""
CertRepMessage ::= SEQUENCE {
caPubs [1] SEQUENCE SIZE (1..MAX) OF CMPCertificate
OPTIONAL,
response SEQUENCE OF CertResponse
}
"""
componentType = namedtype.NamedTypes(
namedtype.OptionalNamedType(
'caPubs', univ.SequenceOf(
componentType=CMPCertificate()
).subtype(subtypeSpec=constraint.ValueSizeConstraint(1, MAX), explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 1))
),
namedtype.NamedType('response', univ.SequenceOf(componentType=CertResponse()))
)
class POPODecKeyChallContent(univ.SequenceOf):
componentType = Challenge()
class OOBCertHash(univ.Sequence):
"""
OOBCertHash ::= SEQUENCE {
hashAlg [0] AlgorithmIdentifier OPTIONAL,
certId [1] CertId OPTIONAL,
hashVal BIT STRING
}
"""
componentType = namedtype.NamedTypes(
namedtype.OptionalNamedType(
'hashAlg', rfc2459.AlgorithmIdentifier().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0))
),
namedtype.OptionalNamedType(
'certId', rfc2511.CertId().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 1))
),
namedtype.NamedType('hashVal', univ.BitString())
)
# pyasn1 does not naturally handle recursive definitions, thus this hack:
# NestedMessageContent ::= PKIMessages
class NestedMessageContent(univ.SequenceOf):
"""
NestedMessageContent ::= PKIMessages
"""
componentType = univ.Any()
class DHBMParameter(univ.Sequence):
"""
DHBMParameter ::= SEQUENCE {
owf AlgorithmIdentifier,
-- AlgId for a One-Way Function (SHA-1 recommended)
mac AlgorithmIdentifier
-- the MAC AlgId (e.g., DES-MAC, Triple-DES-MAC [PKCS11],
} -- or HMAC [RFC2104, RFC2202])
"""
componentType = namedtype.NamedTypes(
namedtype.NamedType('owf', rfc2459.AlgorithmIdentifier()),
namedtype.NamedType('mac', rfc2459.AlgorithmIdentifier())
)
id_DHBasedMac = univ.ObjectIdentifier('1.2.840.113533.7.66.30')
class PBMParameter(univ.Sequence):
"""
PBMParameter ::= SEQUENCE {
salt OCTET STRING,
owf AlgorithmIdentifier,
iterationCount INTEGER,
mac AlgorithmIdentifier
}
"""
componentType = namedtype.NamedTypes(
namedtype.NamedType(
'salt', univ.OctetString().subtype(subtypeSpec=constraint.ValueSizeConstraint(0, 128))
),
namedtype.NamedType('owf', rfc2459.AlgorithmIdentifier()),
namedtype.NamedType('iterationCount', univ.Integer()),
namedtype.NamedType('mac', rfc2459.AlgorithmIdentifier())
)
id_PasswordBasedMac = univ.ObjectIdentifier('1.2.840.113533.7.66.13')
class PKIProtection(univ.BitString):
pass
# pyasn1 does not naturally handle recursive definitions, thus this hack:
# NestedMessageContent ::= PKIMessages
nestedMessageContent = NestedMessageContent().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 20))
class PKIBody(univ.Choice):
"""
PKIBody ::= CHOICE { -- message-specific body elements
ir [0] CertReqMessages, --Initialization Request
ip [1] CertRepMessage, --Initialization Response
cr [2] CertReqMessages, --Certification Request
cp [3] CertRepMessage, --Certification Response
p10cr [4] CertificationRequest, --imported from [PKCS10]
popdecc [5] POPODecKeyChallContent, --pop Challenge
popdecr [6] POPODecKeyRespContent, --pop Response
kur [7] CertReqMessages, --Key Update Request
kup [8] CertRepMessage, --Key Update Response
krr [9] CertReqMessages, --Key Recovery Request
krp [10] KeyRecRepContent, --Key Recovery Response
rr [11] RevReqContent, --Revocation Request
rp [12] RevRepContent, --Revocation Response
ccr [13] CertReqMessages, --Cross-Cert. Request
ccp [14] CertRepMessage, --Cross-Cert. Response
ckuann [15] CAKeyUpdAnnContent, --CA Key Update Ann.
cann [16] CertAnnContent, --Certificate Ann.
rann [17] RevAnnContent, --Revocation Ann.
crlann [18] CRLAnnContent, --CRL Announcement
pkiconf [19] PKIConfirmContent, --Confirmation
nested [20] NestedMessageContent, --Nested Message
genm [21] GenMsgContent, --General Message
genp [22] GenRepContent, --General Response
error [23] ErrorMsgContent, --Error Message
certConf [24] CertConfirmContent, --Certificate confirm
pollReq [25] PollReqContent, --Polling request
pollRep [26] PollRepContent --Polling response
"""
componentType = namedtype.NamedTypes(
namedtype.NamedType(
'ir', rfc2511.CertReqMessages().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0)
)
),
namedtype.NamedType(
'ip', CertRepMessage().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 1)
)
),
namedtype.NamedType(
'cr', rfc2511.CertReqMessages().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 2)
)
),
namedtype.NamedType(
'cp', CertRepMessage().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 3)
)
),
namedtype.NamedType(
'p10cr', rfc2314.CertificationRequest().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 4)
)
),
namedtype.NamedType(
'popdecc', POPODecKeyChallContent().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 5)
)
),
namedtype.NamedType(
'popdecr', POPODecKeyRespContent().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 6)
)
),
namedtype.NamedType(
'kur', rfc2511.CertReqMessages().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 7)
)
),
namedtype.NamedType(
'kup', CertRepMessage().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 8)
)
),
namedtype.NamedType(
'krr', rfc2511.CertReqMessages().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 9)
)
),
namedtype.NamedType(
'krp', KeyRecRepContent().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 10)
)
),
namedtype.NamedType(
'rr', RevReqContent().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 11)
)
),
namedtype.NamedType(
'rp', RevRepContent().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 12)
)
),
namedtype.NamedType(
'ccr', rfc2511.CertReqMessages().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 13)
)
),
namedtype.NamedType(
'ccp', CertRepMessage().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 14)
)
),
namedtype.NamedType(
'ckuann', CAKeyUpdAnnContent().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 15)
)
),
namedtype.NamedType(
'cann', CertAnnContent().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 16)
)
),
namedtype.NamedType(
'rann', RevAnnContent().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 17)
)
),
namedtype.NamedType(
'crlann', CRLAnnContent().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 18)
)
),
namedtype.NamedType(
'pkiconf', PKIConfirmContent().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 19)
)
),
namedtype.NamedType(
'nested', nestedMessageContent
),
# namedtype.NamedType('nested', NestedMessageContent().subtype(
# explicitTag=tag.Tag(tag.tagClassContext,tag.tagFormatConstructed,20)
# )
# ),
namedtype.NamedType(
'genm', GenMsgContent().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 21)
)
),
namedtype.NamedType(
'gen', GenRepContent().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 22)
)
),
namedtype.NamedType(
'error', ErrorMsgContent().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 23)
)
),
namedtype.NamedType(
'certConf', CertConfirmContent().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 24)
)
),
namedtype.NamedType(
'pollReq', PollReqContent().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 25)
)
),
namedtype.NamedType(
'pollRep', PollRepContent().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 26)
)
)
)
class PKIHeader(univ.Sequence):
"""
PKIHeader ::= SEQUENCE {
pvno INTEGER { cmp1999(1), cmp2000(2) },
sender GeneralName,
recipient GeneralName,
messageTime [0] GeneralizedTime OPTIONAL,
protectionAlg [1] AlgorithmIdentifier OPTIONAL,
senderKID [2] KeyIdentifier OPTIONAL,
recipKID [3] KeyIdentifier OPTIONAL,
transactionID [4] OCTET STRING OPTIONAL,
senderNonce [5] OCTET STRING OPTIONAL,
recipNonce [6] OCTET STRING OPTIONAL,
freeText [7] PKIFreeText OPTIONAL,
generalInfo [8] SEQUENCE SIZE (1..MAX) OF
InfoTypeAndValue OPTIONAL
}
"""
componentType = namedtype.NamedTypes(
namedtype.NamedType(
'pvno', univ.Integer(
namedValues=namedval.NamedValues(('cmp1999', 1), ('cmp2000', 2))
)
),
namedtype.NamedType('sender', rfc2459.GeneralName()),
namedtype.NamedType('recipient', rfc2459.GeneralName()),
namedtype.OptionalNamedType('messageTime', useful.GeneralizedTime().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))),
namedtype.OptionalNamedType('protectionAlg', rfc2459.AlgorithmIdentifier().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 1))),
namedtype.OptionalNamedType('senderKID', rfc2459.KeyIdentifier().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 2))),
namedtype.OptionalNamedType('recipKID', rfc2459.KeyIdentifier().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 3))),
namedtype.OptionalNamedType('transactionID', univ.OctetString().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 4))),
namedtype.OptionalNamedType('senderNonce', univ.OctetString().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 5))),
namedtype.OptionalNamedType('recipNonce', univ.OctetString().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 6))),
namedtype.OptionalNamedType('freeText', PKIFreeText().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 7))),
namedtype.OptionalNamedType('generalInfo',
univ.SequenceOf(
componentType=InfoTypeAndValue().subtype(
subtypeSpec=constraint.ValueSizeConstraint(1, MAX),
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 8)
)
)
)
)
class ProtectedPart(univ.Sequence):
"""
ProtectedPart ::= SEQUENCE {
header PKIHeader,
body PKIBody
}
"""
componentType = namedtype.NamedTypes(
namedtype.NamedType('header', PKIHeader()),
namedtype.NamedType('infoValue', PKIBody())
)
class PKIMessage(univ.Sequence):
"""
PKIMessage ::= SEQUENCE {
header PKIHeader,
body PKIBody,
protection [0] PKIProtection OPTIONAL,
extraCerts [1] SEQUENCE SIZE (1..MAX) OF CMPCertificate
OPTIONAL
}"""
componentType = namedtype.NamedTypes(
namedtype.NamedType('header', PKIHeader()),
namedtype.NamedType('body', PKIBody()),
namedtype.OptionalNamedType('protection', PKIProtection().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))),
namedtype.OptionalNamedType('extraCerts',
univ.SequenceOf(
componentType=CMPCertificate()
).subtype(
subtypeSpec=constraint.ValueSizeConstraint(1, MAX),
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 1)
)
)
)
class PKIMessages(univ.SequenceOf):
"""
PKIMessages ::= SEQUENCE SIZE (1..MAX) OF PKIMessage
"""
componentType = PKIMessage()
subtypeSpec = univ.SequenceOf.subtypeSpec + constraint.ValueSizeConstraint(1, MAX)
# pyasn1 does not naturally handle recursive definitions, thus this hack:
# NestedMessageContent ::= PKIMessages
NestedMessageContent._componentType = PKIMessages()
nestedMessageContent._componentType = PKIMessages()
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