Network Working Group P. Hoffman Internet-Draft VPN Consortium Updates: 3370, 3851, 3852, 4108, J. Schaad 5035, 5083, 5084 Soaring Hawk Consulting (if approved) November 8, 2007 Expires: May 11, 2008 New ASN.1 Modules for CMS and S/MIME draft-hoffman-cms-new-asn1-00.txt Status of this Memo By submitting this Internet-Draft, each author represents that any applicable patent or other IPR claims of which he or she is aware have been or will be disclosed, and any of which he or she becomes aware will be disclosed, in accordance with Section 6 of BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. This Internet-Draft will expire on May 11, 2008. Copyright Notice Copyright (C) The IETF Trust (2007). Abstract The Cryptographic Message Syntax (CMS) format, and many associated formats, are expressed using ASN.1. The current ASN.1 modules conform to the 1988 version of ASN.1. This document updates those ASN.1 modules to conform to the 2002 version of ASN.1. There are no bits-on-the-wire changes to any of the formats; this is simply a change to the syntax. Hoffman & Schaad Expires May 11, 2008 [Page 1]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1. Issues . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1.1. More Modules To Be Added . . . . . . . . . . . . . . . 3 1.1.2. Algorithm Structure . . . . . . . . . . . . . . . . . 4 1.1.3. Module OIDs Changing . . . . . . . . . . . . . . . . . 4 2. ASN.1 Module for RFC 3370 . . . . . . . . . . . . . . . . . . 4 3. ASN.1 Module for RFC 3851 . . . . . . . . . . . . . . . . . . 7 4. ASN.1 Module for RFC 3852 . . . . . . . . . . . . . . . . . . 9 5. ASN.1 Module for RFC 4108 . . . . . . . . . . . . . . . . . . 18 6. ASN.1 Module for RFC 5035 . . . . . . . . . . . . . . . . . . 22 7. ASN.1 Module for RFC 5083 . . . . . . . . . . . . . . . . . . 28 8. ASN.1 Module for RFC 5084 . . . . . . . . . . . . . . . . . . 29 9. Security Considerations . . . . . . . . . . . . . . . . . . . 29 10. Normative References . . . . . . . . . . . . . . . . . . . . . 30 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 30 Intellectual Property and Copyright Statements . . . . . . . . . . 32 Hoffman & Schaad Expires May 11, 2008 [Page 2]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 1. Introduction Some developers would like the IETF to use the latest version of ASN.1 in its standards. Most of the RFCs that relate to security protocols still use ASN.1 from the 1988 standard, which has been deprecated. This is particularly true for the standards that relate to PKIX, CMS, and S/MIME. This document updates the following RFCs to use ASN.1 modules that conform to the 2002 version of ASN.1 [ASN1-2002]. Note that not all the modules are updated; some are included to simply make the set compete. o RFC 3370, CMS Algorithms [RFC3370] o RFC 3851, S/MIME Version 3.1 Message Specification [RFC3851] o RFC 3852, CMS main [RFC3852] o RFC 4108, Using CMS to Protect Firmware Packages [RFC4108] o RFC 5035, Enhanced Security Services (ESS) [RFC5035] o RFC-to-be 5083, CMS Authenticated-Enveloped-Data Content Type [RFC5083] o RFC-to-be 5084, Using AES-CCM and AES-GCM Authenticated Encryption in CMS [RFC5084] Note that some of the modules in this document get some of their definitions from places different than the modules in the original RFCs. The idea is that these modules, when combined with the modules in [NEW-PKIX] can stand on their own and do not need to import definitions from anywhere else. 1.1. Issues This section will be removed before final publication. 1.1.1. More Modules To Be Added There are many modules from standards-track RFCs that are not listed in this document or the companion document on PKIX. We will discuss with the two communities which modules are appropriate for the two documents. We will also consider making "super-modules", individual modules which might update multiple RFCs at one time. We may also add objects to some of the modules. Hoffman & Schaad Expires May 11, 2008 [Page 3]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 1.1.2. Algorithm Structure Algorithms are currently not defined here. We need to discuss what structure we want for algorithm objects. Currently, we just do "parameter, OID", but we could add more. Because we don't know what the final structure is, the object sets in the various modules are commented out. We will fix this before finishing this project. 1.1.3. Module OIDs Changing The OIDs given in the modules in this version of the document are the same as the OIDs from the original modules, even though some of the modules have changed syntax. That is clearly incorrect. In a later version of this document, we will change the OIDs for every changed module. 2. ASN.1 Module for RFC 3370 CryptographicMessageSyntaxAlgorithms { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) modules(0) cmsalg-2001(16) } DEFINITIONS IMPLICIT TAGS ::= BEGIN -- The following is easier than importing it from PKIX1Explicit88, -- and makes the module stand-alone ALGORITHM ::= TYPE-IDENTIFIER -- Algorithm Identifiers sha-1 OBJECT IDENTIFIER ::= { iso(1) identified-organization(3) oiw(14) secsig(3) algorithm(2) 26 } md5 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) digestAlgorithm(2) 5 } id-dsa OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) x9-57(10040) x9cm(4) 1 } id-dsa-with-sha1 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) x9-57(10040) x9cm(4) 3 } rsaEncryption OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-1(1) 1 } md5WithRSAEncryption OBJECT IDENTIFIER ::= { iso(1) Hoffman & Schaad Expires May 11, 2008 [Page 4]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-1(1) 4 } sha1WithRSAEncryption OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-1(1) 5 } dh-public-number OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) ansi-x942(10046) number-type(2) 1 } id-alg-ESDH OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) alg(3) 5 } id-alg-SSDH OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) alg(3) 10 } id-alg-CMS3DESwrap OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) alg(3) 6 } id-alg-CMSRC2wrap OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) alg(3) 7 } des-ede3-cbc OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) encryptionAlgorithm(3) 7 } rc2-cbc OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) encryptionAlgorithm(3) 2 } hMAC-SHA1 OBJECT IDENTIFIER ::= { iso(1) identified-organization(3) dod(6) internet(1) security(5) mechanisms(5) 8 1 2 } id-PBKDF2 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-5(5) 12 } -- Public Key Types Dss-Pub-Key ::= INTEGER -- Y RSAPublicKey ::= SEQUENCE { modulus INTEGER, -- n publicExponent INTEGER } -- e DHPublicKey ::= INTEGER -- y = g^x mod p -- Signature Value Types Dss-Sig-Value ::= SEQUENCE { r INTEGER, s INTEGER } Hoffman & Schaad Expires May 11, 2008 [Page 5]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 -- Algorithm Identifier Parameter Types Dss-Parms ::= SEQUENCE { p INTEGER, q INTEGER, g INTEGER } DHDomainParameters ::= SEQUENCE { p INTEGER, -- odd prime, p=jq +1 g INTEGER, -- generator, g q INTEGER, -- factor of p-1 j INTEGER OPTIONAL, -- subgroup factor validationParms ValidationParms OPTIONAL } ValidationParms ::= SEQUENCE { seed BIT STRING, pgenCounter INTEGER } KeyWrapAlgorithm ::= AlgorithmIdentifier {{SupportedKeyWrapAlgorithms}} SupportedKeyWrapAlgorithms ALGORITHM ::= { ... } RC2wrapParameter ::= RC2ParameterVersion RC2ParameterVersion ::= INTEGER CBCParameter ::= IV IV ::= OCTET STRING -- exactly 8 octets RC2CBCParameter ::= SEQUENCE { rc2ParameterVersion INTEGER (1..256), iv OCTET STRING } -- exactly 8 octets algid-hMAC-SHA1 ALGORITHM ::= { NULL IDENTIFIED BY hMAC-SHA1 } -- Another way to do the following would be: -- alg-hMAC-SHA1 AlgorithmIdentifier{{PBKDF2-PRFs}} ::= { algorithm hMAC-SHA1, parameters NULL:NULL } PBKDF2-PRFsAlgorithmIdentifier ::= AlgorithmIdentifier{{PBKDF2-PRFs}} alg-hMAC-SHA1 PBKDF2-PRFsAlgorithmIdentifier ::= { algorithm hMAC-SHA1, parameters NULL:NULL } PBKDF2-SaltSources ALGORITHM ::= { ... } Hoffman & Schaad Expires May 11, 2008 [Page 6]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 PBKDF2-PRFs ALGORITHM ::= { algid-hMAC-SHA1, ... } PBKDF2-SaltSourcesAlgorithmIdentifier ::= AlgorithmIdentifier {{PBKDF2-SaltSources}} PBKDF2-params ::= SEQUENCE { salt CHOICE { specified OCTET STRING, otherSource PBKDF2-SaltSourcesAlgorithmIdentifier }, iterationCount INTEGER (1..MAX), keyLength INTEGER (1..MAX) OPTIONAL, prf PBKDF2-PRFsAlgorithmIdentifier DEFAULT alg-hMAC-SHA1 } AlgorithmIdentifier { ALGORITHM:InfoObjectSet } ::= SEQUENCE { algorithm ALGORITHM.&id({InfoObjectSet}), parameters ALGORITHM.&Type({InfoObjectSet}{@algorithm}) OPTIONAL } END 3. ASN.1 Module for RFC 3851 SecureMimeMessageV3dot1 { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) modules(0) msg-v3dot1(21) } DEFINITIONS IMPLICIT TAGS ::= BEGIN IMPORTS SubjectKeyIdentifier, IssuerAndSerialNumber, RecipientKeyIdentifier FROM CryptographicMessageSyntax { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) modules(0) cms-2004(24) }; -- id-aa is the arc with all new authenticated and unauthenticated -- attributes produced the by S/MIME Working Group id-aa OBJECT IDENTIFIER ::= {iso(1) member-body(2) usa(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) attributes(2)} -- S/MIME Capabilities provides a method of broadcasting the symmetric -- capabilities understood. Algorithms SHOULD be ordered by -- preference and grouped by type Hoffman & Schaad Expires May 11, 2008 [Page 7]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 smimeCapabilities OBJECT IDENTIFIER ::= {iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) 15} SMIME-CAPS ::= TYPE-IDENTIFIER SMIMECapability ::= SEQUENCE { capabilityID SMIME-CAPS. &id({SMimeCapsSet}), parameters SMIME-CAPS. &Type({SMimeCapsSet}{@capabilityID}) OPTIONAL } SMimeCapsSet SMIME-CAPS ::= { ... } SMIMECapabilities ::= SEQUENCE OF SMIMECapability -- Encryption Key Preference provides a method of broadcasting the -- preferred encryption certificate. id-aa-encrypKeyPref OBJECT IDENTIFIER ::= {id-aa 11} SMIMEEncryptionKeyPreference ::= CHOICE { issuerAndSerialNumber [0] IssuerAndSerialNumber, receipentKeyId [1] RecipientKeyIdentifier, subjectAltKeyIdentifier [2] SubjectKeyIdentifier } id-smime OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) 16 } id-cap OBJECT IDENTIFIER ::= { id-smime 11 } -- The preferBinaryInside indicates an ability to receive messages -- with binary encoding inside the CMS wrapper id-cap-preferBinaryInside OBJECT IDENTIFIER ::= { id-cap 1 } -- The following list the OIDs to be used with S/MIME V3 -- Signature Algorithms Not Found in [CMSALG] -- -- md2WithRSAEncryption OBJECT IDENTIFIER ::= -- {iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-1(1) -- 2} -- -- Other Signed Attributes -- -- signingTime OBJECT IDENTIFIER ::= Hoffman & Schaad Expires May 11, 2008 [Page 8]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 -- {iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) -- 5} -- See [CMS] for a description of how to encode the attribute -- value. SMIMECapabilitiesParametersForRC2CBC ::= INTEGER -- (RC2 Key Length (number of bits)) END 4. ASN.1 Module for RFC 3852 CryptographicMessageSyntax2004 { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) modules(0) cms-2004(24) } DEFINITIONS IMPLICIT TAGS ::= BEGIN IMPORTS ALGORITHM, Certificate, CertificateList, CertificateSerialNumber, Name FROM PKIX1Explicit88 { iso(1) identified-organization(3) dod(6) internet(1) security(5) mechanisms(5) pkix(7) id-mod(0) id-pkix1-explicit(18) } AttributeCertificate FROM PKIXAttributeCertificate { iso(1) identified-organization(3) dod(6) internet(1) security(5) mechanisms(5) pkix(7) id-mod(0) id-mod-attribute-cert(12) } AttributeCertificateV1 FROM AttributeCertificateVersion1 { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) modules(0) v1AttrCert(15) } ; -- Cryptographic Message Syntax CONTENT-TYPE ::= TYPE-IDENTIFIER ContentType ::= OBJECT IDENTIFIER ContentInfo ::= SEQUENCE { contentType CONTENT-TYPE. &id({ContentSet}), Hoffman & Schaad Expires May 11, 2008 [Page 9]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 content [0] EXPLICIT CONTENT-TYPE. &Type({ContentSet}{@contentType})} ContentSet CONTENT-TYPE ::= { -- Define the set of content types to be recognized. ct-Data | ct-SignedData | ct-EncryptedData | ct-EnvelopedData | ct-AuthenticatedData | ct-DigestedData, ... } SignedData ::= SEQUENCE { version CMSVersion, digestAlgorithms SET OF DigestAlgorithmIdentifier, encapContentInfo EncapsulatedContentInfo, certificates [0] IMPLICIT CertificateSet OPTIONAL, crls [1] IMPLICIT RevocationInfoChoices OPTIONAL, signerInfos SignerInfos } DigestAlgorithmList ALGORITHM ::= { -- alg-sha-1 | alg-md5, -- ... } SignatureAlgorithmList ALGORITHM ::= { -- alg-dsa-with-sha1 | alg-md5WithRSAEncryption -- -- | alg-sha1WithRSAEncryption, -- ... } SignerInfos ::= SET OF SignerInfo EncapsulatedContentInfo ::= SEQUENCE { eContentType CONTENT-TYPE.&id({ContentSet}), eContent [0] EXPLICIT OCTET STRING ( CONTAINING CONTENT-TYPE. &Type({ContentSet}{@eContentType})) OPTIONAL } SignerInfo ::= SEQUENCE { version CMSVersion, sid SignerIdentifier, digestAlgorithm DigestAlgorithmIdentifier, signedAttrs [0] IMPLICIT AuthAttributes OPTIONAL, signatureAlgorithm SignatureAlgorithmIdentifier, signature SignatureValue, unsignedAttrs [1] IMPLICIT Attributes {{UnsignedAttributes}} OPTIONAL } AuthAttributes ::= Attributes {{ SignedAttributes }} SignerIdentifier ::= CHOICE { issuerAndSerialNumber IssuerAndSerialNumber, subjectKeyIdentifier [0] SubjectKeyIdentifier } SignedAttributes ATTRIBUTE ::= { attr-signingTime | attr-messageDigest | attr-contentType, ... } Hoffman & Schaad Expires May 11, 2008 [Page 10]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 UnsignedAttributes ATTRIBUTE ::= { attr-countersignature, ... } SignatureValue ::= OCTET STRING EnvelopedData ::= SEQUENCE { version CMSVersion, originatorInfo [0] IMPLICIT OriginatorInfo OPTIONAL, recipientInfos RecipientInfos, encryptedContentInfo EncryptedContentInfo, unprotectedAttrs [1] IMPLICIT Attributes {{UnprotectedAttributes}} OPTIONAL } OriginatorInfo ::= SEQUENCE { certs [0] IMPLICIT CertificateSet OPTIONAL, crls [1] IMPLICIT RevocationInfoChoices OPTIONAL } RecipientInfos ::= SET SIZE (1..MAX) OF RecipientInfo EncryptedContentInfo ::= SEQUENCE { contentType CONTENT-TYPE.&id({ContentSet}), contentEncryptionAlgorithm ContentEncryptionAlgorithmIdentifier, encryptedContent [0] IMPLICIT OCTET STRING OPTIONAL } -- If you want to do constraints, you might use: -- EncryptedContentInfo ::= SEQUENCE { -- contentType CONTENT-TYPE.&id({ContentSet}), -- contentEncryptionAlgorithm ContentEncryptionAlgorithmIdentifier, -- encryptedContent [0] IMPLICIT ENCRYPTED {CONTENT-TYPE. -- &Type({ContentSet}{@contentType}) OPTIONAL } -- ENCRYPTED {ToBeEncrypted} ::= OCTET STRING ( CONSTRAINED BY -- { ToBeEncrypted } ) ContentEncryptionAlgorithmList ALGORITHM ::= { -- alg-des-ede3-cbc | alg-rd2-cbc, -- ... } UnprotectedAttributes ATTRIBUTE ::= { ... } RecipientInfo ::= CHOICE { ktri KeyTransRecipientInfo, kari [1] KeyAgreeRecipientInfo, kekri [2] KEKRecipientInfo, pwri [3] PasswordRecipientInfo, ori [4] OtherRecipientInfo } EncryptedKey ::= OCTET STRING KeyTransRecipientInfo ::= SEQUENCE { version CMSVersion, -- always set to 0 or 2 Hoffman & Schaad Expires May 11, 2008 [Page 11]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 rid RecipientIdentifier, keyEncryptionAlgorithm AlgorithmIdentifier {{KeyTransportAlgorithmList}}, encryptedKey EncryptedKey } KeyTransportAlgorithmList ALGORITHM ::= { -- alg-rsaEncryption, -- ... } RecipientIdentifier ::= CHOICE { issuerAndSerialNumber IssuerAndSerialNumber, subjectKeyIdentifier [0] SubjectKeyIdentifier } KeyAgreeRecipientInfo ::= SEQUENCE { version CMSVersion, -- always set to 3 originator [0] EXPLICIT OriginatorIdentifierOrKey, ukm [1] EXPLICIT UserKeyingMaterial OPTIONAL, keyEncryptionAlgorithm AlgorithmIdentifier {{KeyAgreementAlgorithmList}}, recipientEncryptedKeys RecipientEncryptedKeys } KeyAgreementAlgorithmList ALGORITHM ::= { -- alg-ESDH | alg-SSDH, -- ... } OriginatorIdentifierOrKey ::= CHOICE { issuerAndSerialNumber IssuerAndSerialNumber, subjectKeyIdentifier [0] SubjectKeyIdentifier, originatorKey [1] OriginatorPublicKey } OriginatorPublicKey ::= SEQUENCE { algorithm AlgorithmIdentifier {{AlgorithmList}}, publicKey BIT STRING } RecipientEncryptedKeys ::= SEQUENCE OF RecipientEncryptedKey RecipientEncryptedKey ::= SEQUENCE { rid KeyAgreeRecipientIdentifier, encryptedKey EncryptedKey } KeyEncryptKeyAlgorithmList ALGORITHM ::= { -- alg-CMS3DESwrap | alg-CMSRC2wrap, -- ... } KeyEncryptionAlgorithmList ALGORITHM ::= { ... } KeyAgreeRecipientIdentifier ::= CHOICE { issuerAndSerialNumber IssuerAndSerialNumber, rKeyId [0] IMPLICIT RecipientKeyIdentifier } RecipientKeyIdentifier ::= SEQUENCE { Hoffman & Schaad Expires May 11, 2008 [Page 12]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 subjectKeyIdentifier SubjectKeyIdentifier, date GeneralizedTime OPTIONAL, other OtherKeyAttribute OPTIONAL } SubjectKeyIdentifier ::= OCTET STRING KEKRecipientInfo ::= SEQUENCE { version CMSVersion, -- always set to 4 kekid KEKIdentifier, keyEncryptionAlgorithm KeyEncryptionAlgorithmIdentifier, encryptedKey EncryptedKey } KEKIdentifier ::= SEQUENCE { keyIdentifier OCTET STRING, date GeneralizedTime OPTIONAL, other OtherKeyAttribute OPTIONAL } PasswordRecipientInfo ::= SEQUENCE { version CMSVersion, -- always set to 0 keyDerivationAlgorithm [0] KeyDerivationAlgorithmIdentifier OPTIONAL, keyEncryptionAlgorithm KeyEncryptionAlgorithmIdentifier, encryptedKey EncryptedKey } OTHER-RECIPIENT ::= TYPE-IDENTIFIER OtherRecipientInfo ::= SEQUENCE { oriType OTHER-RECIPIENT. &id({SupportedOtherRecipInfo}), oriValue OTHER-RECIPIENT. &Type({SupportedOtherRecipInfo}{@oriType})} SupportedOtherRecipInfo OTHER-RECIPIENT ::= { ... } DigestedData ::= SEQUENCE { version CMSVersion, digestAlgorithm DigestAlgorithmIdentifier, encapContentInfo EncapsulatedContentInfo, digest Digest } Digest ::= OCTET STRING EncryptedData ::= SEQUENCE { version CMSVersion, encryptedContentInfo EncryptedContentInfo, unprotectedAttrs [1] IMPLICIT Attributes {{UnprotectedAttributes}} OPTIONAL } Hoffman & Schaad Expires May 11, 2008 [Page 13]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 AuthenticatedData ::= SEQUENCE { version CMSVersion, originatorInfo [0] IMPLICIT OriginatorInfo OPTIONAL, recipientInfos RecipientInfos, macAlgorithm MessageAuthenticationCodeAlgorithm, digestAlgorithm [1] DigestAlgorithmIdentifier OPTIONAL, encapContentInfo EncapsulatedContentInfo, authAttrs [2] IMPLICIT AuthAttributes OPTIONAL, mac MessageAuthenticationCode, unauthAttrs [3] IMPLICIT UnauthAttributes OPTIONAL } AuthAttributes ::= SET SIZE (1..MAX) OF Attribute {{SupportedAttributes}} UnauthAttributes ::= SET SIZE (1..MAX) OF Attribute {{SupportedAttributes}} MessageAuthenticationCode ::= OCTET STRING DigestAlgorithmIdentifier ::= AlgorithmIdentifier {{DigestAlgorithmList}} SignatureAlgorithmIdentifier ::= AlgorithmIdentifier {{SignatureAlgorithmList}} KeyEncryptionAlgorithmIdentifier ::= AlgorithmIdentifier {{KeyEncryptionAlgorithmList}} ContentEncryptionAlgorithmIdentifier ::= AlgorithmIdentifier {{ContentEncryptionAlgorithmList}} MessageAuthenticationCodeAlgorithm ::= AlgorithmIdentifier {{AlgorithmList}} KeyDerivationAlgorithmIdentifier ::= AlgorithmIdentifier {{AlgorithmList}} AlgorithmList ALGORITHM ::= { ... } RevocationInfoChoices ::= SET OF RevocationInfoChoice RevocationInfoChoice ::= CHOICE { crl CertificateList, other [1] IMPLICIT OtherRevocationInfoFormat } OTHER-REVOK-INFO ::= TYPE-IDENTIFIER OtherRevocationInfoFormat ::= SEQUENCE { Hoffman & Schaad Expires May 11, 2008 [Page 14]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 otherRevInfoFormat OTHER-REVOK-INFO. &id({SupportedOtherRevokInfo}), otherRevInfo OTHER-REVOK-INFO. &Type({SupportedOtherRevokInfo}{@otherRevInfoFormat})} SupportedOtherRevokInfo OTHER-REVOK-INFO ::= { ... } CertificateChoices ::= CHOICE { certificate Certificate, extendedCertificate [0] IMPLICIT ExtendedCertificate, -- Obsolete v1AttrCert [1] IMPLICIT AttributeCertificateV1, -- Obsolete v2AttrCert [2] IMPLICIT AttributeCertificateV2, other [3] IMPLICIT OtherCertificateFormat } AttributeCertificateV2 ::= AttributeCertificate OTHER-CERT-FMT ::= TYPE-IDENTIFIER OtherCertificateFormat ::= SEQUENCE { otherCertFormat OTHER-CERT-FMT. &id({SupportedCertFormats}), otherCert OTHER-CERT-FMT. &Type({SupportedCertFormats}{@otherCertFormat})} SupportedCertFormats OTHER-CERT-FMT ::= { ... } CertificateSet ::= SET OF CertificateChoices IssuerAndSerialNumber ::= SEQUENCE { issuer Name, serialNumber CertificateSerialNumber } CMSVersion ::= INTEGER { v0(0), v1(1), v2(2), v3(3), v4(4), v5(5) } UserKeyingMaterial ::= OCTET STRING KEY-ATTRIBUTE ::= TYPE-IDENTIFIER OtherKeyAttribute ::= SEQUENCE { keyAttrId KEY-ATTRIBUTE. &id({SupportedKeyAttributes}), keyAttr KEY-ATTRIBUTE. &Type({SupportedKeyAttributes}{@keyAttrId})} SupportedKeyAttributes KEY-ATTRIBUTE ::= { ... } -- Content Type Object Identifiers Hoffman & Schaad Expires May 11, 2008 [Page 15]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 id-ct-contentInfo OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) smime(16) ct(1) 6 } ct-Data CONTENT-TYPE ::= {OCTET STRING IDENTIFIED BY id-data} id-data OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs7(7) 1 } ct-SignedData CONTENT-TYPE ::= { SignedData IDENTIFIED BY id-signedData} id-signedData OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs7(7) 2 } ct-EnvelopedData CONTENT-TYPE ::= { EnvelopedData IDENTIFIED BY id-envelopedData} id-envelopedData OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs7(7) 3 } ct-DigestedData CONTENT-TYPE ::= { DigestedData IDENTIFIED BY id-digestedData} id-digestedData OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs7(7) 5 } ct-EncryptedData CONTENT-TYPE ::= { EncryptedData IDENTIFIED BY id-encryptedData} id-encryptedData OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs7(7) 6 } ct-AuthenticatedData CONTENT-TYPE ::= { AuthenticatedData IDENTIFIED BY id-ct-authData} id-ct-authData OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) ct(1) 2 } -- The CMS Attributes MessageDigest ::= OCTET STRING SigningTime ::= Time Time ::= CHOICE { utcTime UTCTime, generalTime GeneralizedTime } Hoffman & Schaad Expires May 11, 2008 [Page 16]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 Countersignature ::= SignerInfo -- Attribute Object Identifiers attr-contentType ATTRIBUTE ::= { ContentType IDENTIFIED BY id-contentType } id-contentType OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) 3 } attr-messageDigest ATTRIBUTE ::= { OCTET STRING IDENTIFIED BY id-messageDigest} id-messageDigest OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) 4 } attr-signingTime ATTRIBUTE ::= { Time IDENTIFIED BY id-signingTime } id-signingTime OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) 5 } attr-countersignature ATTRIBUTE ::= { SignerInfo IDENTIFIED BY id-countersignature } id-countersignature OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) 6 } -- Obsolete Extended Certificate syntax from PKCS#6 ExtendedCertificateOrCertificate ::= CHOICE { certificate Certificate, extendedCertificate [0] IMPLICIT ExtendedCertificate } ExtendedCertificate ::= SEQUENCE { extendedCertificateInfo ExtendedCertificateInfo, signatureAlgorithm SignatureAlgorithmIdentifier, signature Signature } ExtendedCertificateInfo ::= SEQUENCE { version CMSVersion, certificate Certificate, attributes UnauthAttributes } Signature ::= BIT STRING -- Class definitions used in the module Hoffman & Schaad Expires May 11, 2008 [Page 17]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 AlgorithmIdentifier { ALGORITHM:IOSet } ::= SEQUENCE { algorithm ALGORITHM.&id({IOSet}), parameters ALGORITHM.&Type({IOSet}{@algorithm}) OPTIONAL } ATTRIBUTE ::= TYPE-IDENTIFIER Attribute{ATTRIBUTE: AttrList} ::= SEQUENCE { attrType ATTRIBUTE. &id({AttrList}), attrValues SET OF ATTRIBUTE. &Type({AttrList}{@attrType}) } SupportedAttributes ATTRIBUTE ::= { ... } Attributes { ATTRIBUTE:AttrList } ::= SET SIZE (1..MAX) OF Attribute {{ AttrList }} END 5. ASN.1 Module for RFC 4108 CMSFirmwareWrapper { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) modules(0) cms-firmware-wrap(22) } DEFINITIONS IMPLICIT TAGS ::= BEGIN IMPORTS EnvelopedData FROM CryptographicMessageSyntax { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) modules(0) cms-2004(24) }; -- Firmware Package Content Type and Object Identifier id-ct-firmwarePackage OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) smime(16) ct(1) 16 } FirmwarePkgData ::= OCTET STRING -- Firmware Package Signed Attributes and Object Identifiers id-aa-firmwarePackageID OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) Hoffman & Schaad Expires May 11, 2008 [Page 18]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 smime(16) aa(2) 35 } FirmwarePackageIdentifier ::= SEQUENCE { name PreferredOrLegacyPackageIdentifier, stale PreferredOrLegacyStalePackageIdentifier OPTIONAL } PreferredOrLegacyPackageIdentifier ::= CHOICE { preferred PreferredPackageIdentifier, legacy OCTET STRING } PreferredPackageIdentifier ::= SEQUENCE { fwPkgID OBJECT IDENTIFIER, verNum INTEGER (0..MAX) } PreferredOrLegacyStalePackageIdentifier ::= CHOICE { preferredStaleVerNum INTEGER (0..MAX), legacyStaleVersion OCTET STRING } id-aa-targetHardwareIDs OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) smime(16) aa(2) 36 } TargetHardwareIdentifiers ::= SEQUENCE OF OBJECT IDENTIFIER id-aa-decryptKeyID OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) smime(16) aa(2) 37 } DecryptKeyIdentifier ::= OCTET STRING id-aa-implCryptoAlgs OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) smime(16) aa(2) 38 } ImplementedCryptoAlgorithms ::= SEQUENCE OF OBJECT IDENTIFIER id-aa-implCompressAlgs OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) smime(16) aa(2) 43 } ImplementedCompressAlgorithms ::= SEQUENCE OF OBJECT IDENTIFIER id-aa-communityIdentifiers OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) smime(16) aa(2) 40 } Hoffman & Schaad Expires May 11, 2008 [Page 19]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 CommunityIdentifiers ::= SEQUENCE OF CommunityIdentifier CommunityIdentifier ::= CHOICE { communityOID OBJECT IDENTIFIER, hwModuleList HardwareModules } HardwareModules ::= SEQUENCE { hwType OBJECT IDENTIFIER, hwSerialEntries SEQUENCE OF HardwareSerialEntry } HardwareSerialEntry ::= CHOICE { all NULL, single OCTET STRING, block SEQUENCE { low OCTET STRING, high OCTET STRING } } id-aa-firmwarePackageInfo OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) smime(16) aa(2) 42 } FirmwarePackageInfo ::= SEQUENCE { fwPkgType INTEGER OPTIONAL, dependencies SEQUENCE OF PreferredOrLegacyPackageIdentifier OPTIONAL } -- Firmware Package Unsigned Attributes and Object Identifiers id-aa-wrappedFirmwareKey OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) smime(16) aa(2) 39 } WrappedFirmwareKey ::= EnvelopedData -- Firmware Package Load Receipt Content Type and Object Identifier id-ct-firmwareLoadReceipt OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) smime(16) ct(1) 17 } FirmwarePackageLoadReceipt ::= SEQUENCE { version FWReceiptVersion DEFAULT v1, hwType OBJECT IDENTIFIER, hwSerialNum OCTET STRING, fwPkgName PreferredOrLegacyPackageIdentifier, trustAnchorKeyID OCTET STRING OPTIONAL, decryptKeyID [1] OCTET STRING OPTIONAL } Hoffman & Schaad Expires May 11, 2008 [Page 20]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 FWReceiptVersion ::= INTEGER { v1(1) } -- Firmware Package Load Error Report Content Type -- and Object Identifier id-ct-firmwareLoadError OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) smime(16) ct(1) 18 } FirmwarePackageLoadError ::= SEQUENCE { version FWErrorVersion DEFAULT v1, hwType OBJECT IDENTIFIER, hwSerialNum OCTET STRING, errorCode FirmwarePackageLoadErrorCode, vendorErrorCode VendorLoadErrorCode OPTIONAL, fwPkgName PreferredOrLegacyPackageIdentifier OPTIONAL, config [1] SEQUENCE OF CurrentFWConfig OPTIONAL } FWErrorVersion ::= INTEGER { v1(1) } CurrentFWConfig ::= SEQUENCE { fwPkgType INTEGER OPTIONAL, fwPkgName PreferredOrLegacyPackageIdentifier } FirmwarePackageLoadErrorCode ::= ENUMERATED { decodeFailure (1), badContentInfo (2), badSignedData (3), badEncapContent (4), badCertificate (5), badSignerInfo (6), badSignedAttrs (7), badUnsignedAttrs (8), missingContent (9), noTrustAnchor (10), notAuthorized (11), badDigestAlgorithm (12), badSignatureAlgorithm (13), unsupportedKeySize (14), signatureFailure (15), contentTypeMismatch (16), badEncryptedData (17), unprotectedAttrsPresent (18), badEncryptContent (19), badEncryptAlgorithm (20), missingCiphertext (21), noDecryptKey (22), decryptFailure (23), Hoffman & Schaad Expires May 11, 2008 [Page 21]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 badCompressAlgorithm (24), missingCompressedContent (25), decompressFailure (26), wrongHardware (27), stalePackage (28), notInCommunity (29), unsupportedPackageType (30), missingDependency (31), wrongDependencyVersion (32), insufficientMemory (33), badFirmware (34), unsupportedParameters (35), breaksDependency (36), otherError (99) } VendorLoadErrorCode ::= INTEGER -- Other Name syntax for Hardware Module Name id-on-hardwareModuleName OBJECT IDENTIFIER ::= { iso(1) identified-organization(3) dod(6) internet(1) security(5) mechanisms(5) pkix(7) on(8) 4 } HardwareModuleName ::= SEQUENCE { hwType OBJECT IDENTIFIER, hwSerialNum OCTET STRING } END 6. ASN.1 Module for RFC 5035 ExtendedSecurityServices-2006 { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) modules(0) id-mod-ess-2006(30) } DEFINITIONS IMPLICIT TAGS ::= BEGIN IMPORTS ContentType, IssuerAndSerialNumber, SubjectKeyIdentifier FROM CryptographicMessageSyntax2004 { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) modules(0) cms-2004(24) } AlgorithmIdentifier, CertificateSerialNumber FROM PKIX1Explicit88 { iso(1) identified-organization(3) dod(6) internet(1) security(5) Hoffman & Schaad Expires May 11, 2008 [Page 22]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 mechanisms(5) pkix(7) id-mod(0) id-pkix1-explicit(18) } PolicyInformation, GeneralNames FROM PKIX1Implicit88 {iso(1) identified-organization(3) dod(6) internet(1) security(5) mechanisms(5) pkix(7) id-mod(0) id-pkix1-implicit(19)}; -- Extended Security Services -- The construct "SEQUENCE SIZE (1..MAX) OF" appears in several ASN.1 -- constructs in this module. A valid ASN.1 SEQUENCE can have zero or -- more entries. The SIZE (1..MAX) construct constrains the SEQUENCE -- tp have at least one entry. MAX indicates the upper bound is -- unspecified. Implementations are free to choose an upper bound -- that suits their environment. -- Section 2.7 ReceiptRequest ::= SEQUENCE { signedContentIdentifier ContentIdentifier, receiptsFrom ReceiptsFrom, receiptsTo SEQUENCE SIZE (1..ub-receiptsTo) OF GeneralNames } ub-receiptsTo INTEGER ::= 16 id-aa-receiptRequest OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) id-aa(2) 1} ContentIdentifier ::= OCTET STRING id-aa-contentIdentifier OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) id-aa(2) 7} ReceiptsFrom ::= CHOICE { allOrFirstTier [0] AllOrFirstTier, -- formerly "allOrNone [0]AllOrNone" receiptList [1] SEQUENCE OF GeneralNames } AllOrFirstTier ::= INTEGER { -- Formerly AllOrNone allReceipts (0), firstTierRecipients (1) } -- Section 2.8 Receipt ::= SEQUENCE { version ESSVersion, contentType ContentType, Hoffman & Schaad Expires May 11, 2008 [Page 23]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 signedContentIdentifier ContentIdentifier, originatorSignatureValue OCTET STRING } id-ct-receipt OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) id-ct(1) 1} ESSVersion ::= INTEGER { v1(1) } -- Section 2.9 ContentHints ::= SEQUENCE { contentDescription UTF8String (SIZE (1..MAX)) OPTIONAL, contentType ContentType } id-aa-contentHint OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) id-aa(2) 4} -- Section 2.10 MsgSigDigest ::= OCTET STRING id-aa-msgSigDigest OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) id-aa(2) 5} -- Section 2.11 ContentReference ::= SEQUENCE { contentType ContentType, signedContentIdentifier ContentIdentifier, originatorSignatureValue OCTET STRING } id-aa-contentReference OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) id-aa(2) 10 } -- Section 3.2 ESSSecurityLabel ::= SET { security-policy-identifier SecurityPolicyIdentifier, security-classification SecurityClassification OPTIONAL, privacy-mark ESSPrivacyMark OPTIONAL, security-categories SecurityCategories OPTIONAL } id-aa-securityLabel OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) id-aa(2) 2} SecurityPolicyIdentifier ::= OBJECT IDENTIFIER SecurityClassification ::= INTEGER { Hoffman & Schaad Expires May 11, 2008 [Page 24]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 unmarked (0), unclassified (1), restricted (2), confidential (3), secret (4), top-secret (5) } (0..ub-integer-options) ub-integer-options INTEGER ::= 256 ESSPrivacyMark ::= CHOICE { pString PrintableString (SIZE (1..ub-privacy-mark-length)), utf8String UTF8String (SIZE (1..MAX)) } ub-privacy-mark-length INTEGER ::= 128 SecurityCategories ::= SET SIZE (1..ub-security-categories) OF SecurityCategory ub-security-categories INTEGER ::= 64 SECURITY-CATEGORY ::= TYPE-IDENTIFIER SecurityCategory ::= SEQUENCE { type [0] SECURITY-CATEGORY. &id({SupportedSecurityCategories}), value [1] SECURITY-CATEGORY. &Type({SupportedSecurityCategories}{@type}) } SupportedSecurityCategories SECURITY-CATEGORY ::= { ... } --Note: The aforementioned SecurityCategory syntax produces identical --hex encodings as the following SecurityCategory syntax that is --documented in the X.411 specification: -- --SecurityCategory ::= SEQUENCE { -- type [0] SECURITY-CATEGORY, -- value [1] ANY DEFINED BY type } -- --SECURITY-CATEGORY MACRO ::= --BEGIN --TYPE NOTATION ::= type | empty --VALUE NOTATION ::= value (VALUE OBJECT IDENTIFIER) --END -- Section 3.4 Hoffman & Schaad Expires May 11, 2008 [Page 25]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 EquivalentLabels ::= SEQUENCE OF ESSSecurityLabel id-aa-equivalentLabels OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) id-aa(2) 9} -- Section 4.4 MLExpansionHistory ::= SEQUENCE SIZE (1..ub-ml-expansion-history) OF MLData id-aa-mlExpandHistory OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) id-aa(2) 3 } ub-ml-expansion-history INTEGER ::= 64 MLData ::= SEQUENCE { mailListIdentifier EntityIdentifier, expansionTime GeneralizedTime, mlReceiptPolicy MLReceiptPolicy OPTIONAL } EntityIdentifier ::= CHOICE { issuerAndSerialNumber IssuerAndSerialNumber, subjectKeyIdentifier SubjectKeyIdentifier } MLReceiptPolicy ::= CHOICE { none [0] NULL, insteadOf [1] SEQUENCE SIZE (1..MAX) OF GeneralNames, inAdditionTo [2] SEQUENCE SIZE (1..MAX) OF GeneralNames } -- Section 5.4 SigningCertificate ::= SEQUENCE { certs SEQUENCE OF ESSCertID, policies SEQUENCE OF PolicyInformation OPTIONAL } id-aa-signingCertificate OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) smime(16) id-aa(2) 12 } SigningCertificateV2 ::= SEQUENCE { certs SEQUENCE OF ESSCertIDv2, policies SEQUENCE OF PolicyInformation OPTIONAL } id-aa-signingCertificateV2 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) smime(16) id-aa(2) 47 } Hoffman & Schaad Expires May 11, 2008 [Page 26]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 id-sha256 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistalgorithm(4) hashalgs(2) 1 } ESSCertIDv2 ::= SEQUENCE { hashAlgorithm AlgorithmIdentifier DEFAULT { algorithm id-sha256 }, certHash Hash, issuerSerial IssuerSerial OPTIONAL } ESSCertID ::= SEQUENCE { certHash Hash, issuerSerial IssuerSerial OPTIONAL } Hash ::= OCTET STRING IssuerSerial ::= SEQUENCE { issuer GeneralNames, serialNumber CertificateSerialNumber } END Hoffman & Schaad Expires May 11, 2008 [Page 27]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 7. ASN.1 Module for RFC 5083 CMS-AuthEnvelopedData-2007 { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) modules(0) cms-authEnvelopedData(31) } DEFINITIONS IMPLICIT TAGS ::= BEGIN IMPORTS AuthAttributes, CMSVersion, EncryptedContentInfo, MessageAuthenticationCode, OriginatorInfo, RecipientInfos, UnauthAttributes FROM CryptographicMessageSyntax2004 { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) modules(0) cms-2004(24) } ; id-ct-authEnvelopedData OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) ct(1) 23 } AuthEnvelopedData ::= SEQUENCE { version CMSVersion, originatorInfo [0] IMPLICIT OriginatorInfo OPTIONAL, recipientInfos RecipientInfos, authEncryptedContentInfo EncryptedContentInfo, authAttrs [1] IMPLICIT AuthAttributes OPTIONAL, mac MessageAuthenticationCode, unauthAttrs [2] IMPLICIT UnauthAttributes OPTIONAL } END Hoffman & Schaad Expires May 11, 2008 [Page 28]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 8. ASN.1 Module for RFC 5084 CMS-AES-CCM-and-AES-GCM { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) modules(0) cms-aes-ccm-and-gcm(32) } DEFINITIONS IMPLICIT TAGS ::= BEGIN -- Object Identifiers aes OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistAlgorithm(4) 1 } id-aes128-CCM OBJECT IDENTIFIER ::= { aes 7 } id-aes192-CCM OBJECT IDENTIFIER ::= { aes 27 } id-aes256-CCM OBJECT IDENTIFIER ::= { aes 47 } id-aes128-GCM OBJECT IDENTIFIER ::= { aes 6 } id-aes192-GCM OBJECT IDENTIFIER ::= { aes 26 } id-aes256-GCM OBJECT IDENTIFIER ::= { aes 46 } -- Parameters for AigorithmIdentifier CCMParameters ::= SEQUENCE { aes-nonce OCTET STRING (SIZE(7..13)), aes-ICVlen AES-CCM-ICVlen DEFAULT 12 } AES-CCM-ICVlen ::= INTEGER (4 | 6 | 8 | 10 | 12 | 14 | 16) GCMParameters ::= SEQUENCE { aes-nonce OCTET STRING, -- recommended size is 12 octets aes-ICVlen AES-GCM-ICVlen DEFAULT 12 } AES-GCM-ICVlen ::= INTEGER (12 | 13 | 14 | 15 | 16) END 9. Security Considerations Even though all the RFCs in this document are security-related, the document itself does not have any security considerations. The ASN.1 modules keep the same bits-on-the-wire as the modules that they replace. Hoffman & Schaad Expires May 11, 2008 [Page 29]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 10. Normative References [ASN1-2002] ITU-T, "ITU-T Recommendation X.680 Information technology [ETH] Abstract Syntax Notation One (ASN.1): Specification of basic notation", ITU-T X.680, 2002. [NEW-PKIX] Hoffman, P. and J. Schaad, "New ASN.1 Modules for PKIX", draft-hoffman-pkix-new-asn1 (work in progress), November 2007. [RFC3370] Housley, R., "Cryptographic Message Syntax (CMS) Algorithms", RFC 3370, August 2002. [RFC3851] Ramsdell, B., "Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 3.1 Message Specification", RFC 3851, July 2004. [RFC3852] Housley, R., "Cryptographic Message Syntax (CMS)", RFC 3852, July 2004. [RFC4108] Housley, R., "Using Cryptographic Message Syntax (CMS) to Protect Firmware Packages", RFC 4108, August 2005. [RFC5035] Schaad, J., "Enhanced Security Services (ESS) Update: Adding CertID Algorithm Agility", RFC 5035, August 2007. [RFC5083] Housley, R., "Cryptographic Message Syntax (CMS) Authenticated-Enveloped-Data Content Type", RFC-to- be 5083, November 2007. [RFC5084] Housley, R., "Using AES-CCM and AES-GCM Authenticated Encryption in the Cryptographic Message Syntax (CMS)", RFC-to-be 5084, November 2007. Authors' Addresses Paul Hoffman VPN Consortium 127 Segre Place Santa Cruz, CA 95060 US Phone: 1-831-426-9827 Email: paul.hoffman@vpnc.org Hoffman & Schaad Expires May 11, 2008 [Page 30]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 Jim Schaad Soaring Hawk Consulting Email: jimsch@exmsft.com Hoffman & Schaad Expires May 11, 2008 [Page 31]
Internet-Draft New ASN.1 for CMS and S/MIME November 2007 Full Copyright Statement Copyright (C) The IETF Trust (2007). This document is subject to the rights, licenses and restrictions contained in BCP 78, and except as set forth therein, the authors retain all their rights. This document and the information contained herein are provided on an "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY, THE IETF TRUST AND THE INTERNET ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Intellectual Property The IETF takes no position regarding the validity or scope of any Intellectual Property Rights or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; nor does it represent that it has made any independent effort to identify any such rights. Information on the procedures with respect to rights in RFC documents can be found in BCP 78 and BCP 79. Copies of IPR disclosures made to the IETF Secretariat and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such proprietary rights by implementers or users of this specification can be obtained from the IETF on-line IPR repository at http://www.ietf.org/ipr. The IETF invites any interested party to bring to its attention any copyrights, patents or patent applications, or other proprietary rights that may cover technology that may be required to implement this standard. Please address the information to the IETF at ietf-ipr@ietf.org. Acknowledgment Funding for the RFC Editor function is provided by the IETF Administrative Support Activity (IASA). Hoffman & Schaad Expires May 11, 2008 [Page 32]