[catapult] - Copy Telemetry's gsutilz over to third_party.

third_party/gsutil/third_party/pyasn1-modules/pyasn1_modules/rfc4210.py

Index: third_party/gsutil/third_party/pyasn1-modules/pyasn1_modules/rfc4210.py
diff --git a/third_party/gsutil/third_party/pyasn1-modules/pyasn1_modules/rfc4210.py b/third_party/gsutil/third_party/pyasn1-modules/pyasn1_modules/rfc4210.py
new file mode 100644
index 0000000000000000000000000000000000000000..545e9f42fbdc0123124a1148031c80a17b243223
--- /dev/null
+++ b/third_party/gsutil/third_party/pyasn1-modules/pyasn1_modules/rfc4210.py
@@ -0,0 +1,695 @@
+#
+# Certificate Management Protocol structures as per RFC4210
+#
+# Based on Alex Railean's work
+#
+from pyasn1.type import tag,namedtype,namedval,univ,constraint,char,useful
+from pyasn1_modules import rfc2459, rfc2511, rfc2314
+
+MAX = 64
+
+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
+
+    """
+    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)
+            )
+        )
+    )
+
+
+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()