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可选属性类型。PKCS#9定义了PKCS#6扩展证书、PKCS#7数字签名消息、PKCS#8私钥信息和PKCS#10证书签名请求中要用到的可选属性类型。已定义的证书属性包括E-mail地址、无格式姓名、内容类型、消息摘要、签名时间、签名副本(counter signature)、质询口令字和扩展证书属性。
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Copyright © 1991-2000 RSA Laboratories, a division of RSA Security Inc. License to copy this document
is granted provided that it is identified as “RSA Security Inc. Public-Key Cryptography Standards (PKCS)”
in all material mentioning or referencing this document.
003-903024-200-000-000
PKCS #9 v2.0: Selected Object Classes and Attribute Types
RSA Laboratories
February 25, 2000
Table of Contents
1. INTRODUCTION...............................................................................................................................2
2. DEFINITIONS, NOTATION AND DOCUMENT CONVENTIONS ............................................2
2.1 D
EFINITIONS ......................................................................................................................................2
2.2 N
OTATION AND DOCUMENT CONVENTIONS........................................................................................3
3. OVERVIEW ........................................................................................................................................3
4. AUXILIARY OBJECT CLASSES ....................................................................................................4
4.1 T
HE PKCSENTITY AUXILIARY OBJECT CLASS.....................................................................................4
4.2 T
HE NATURALPERSON AUXILIARY OBJECT CLASS ............................................................................ 4
5. SELECTED ATTRIBUTE TYPES....................................................................................................5
5.1 A
TTRIBUTE TYPES FOR USE WITH THE “PKCSENTITY” OBJECT CLASS................................................. 5
5.2 A
TTRIBUTE TYPES FOR USE WITH THE “NATURALPERSON” OBJECT CLASS.........................................6
5.3 A
TTRIBUTE TYPES FOR USE IN PKCS #7 DATA ................................................................................10
5.4 A
TTRIBUTE TYPES FOR USE WITH PKCS #10 CERTIFICATE REQUESTS .............................................14
5.5 A
TTRIBUTES FOR USE IN PKCS #12 “PFX” PDUS OR PKCS #15 TOKENS......................................15
5.6 A
TTRIBUTES DEFINED IN S/MIME................................................................................................... 16
6. MATCHING RULES........................................................................................................................17
6.1 C
ASE IGNORE MATCH ......................................................................................................................17
6.2 S
IGNING TIME MATCH ......................................................................................................................17
A. ASN.1 MODULE............................................................................................................................... 19
B. BNF SCHEMA SUMMARY............................................................................................................26
B.1 S
YNTAXES.......................................................................................................................................26
B.2 O
BJECT CLASSES.............................................................................................................................27
B.3 A
TTRIBUTE TYPES ........................................................................................................................... 27
B.4 M
ATCHING RULES............................................................................................................................31
C. INTELLECTUAL PROPERTY CONSIDERATIONS..................................................................31
D. REVISION HISTORY...................................................................................................................... 32
E. REFERENCES..................................................................................................................................33
F. ABOUT PKCS...................................................................................................................................34
PKCS #9 V2.0: SELECTED OBJECT CLASSES AND ATTRIBUTE TYPES 2
Copyright © 1991-2000 RSA Laboratories.
1. Introduction
This document defines two new auxiliary object classes, pkcsEntity and naturalPerson,
and selected attribute types for use with these classes. It also defines some attribute types
for use in conjunction with PKCS #7 [14] (and S/MIME CMS [3]) digitally signed
messages, PKCS #10 [16] certificate-signing requests, PKCS #12 [17] personal
information exchanges and PKCS #15 [18] cryptographic tokens. Matching rules for use
with these attributes are also defined, whenever necessary.
2. Definitions, notation and document conventions
2.1 Definitions
For the purposes of this document, the following definitions apply.
ASN.1 Abstract Syntax Notation One, as defined in [5].
Attributes An ASN.1 type that specifies a set of attributes. Each attribute contains an
attribute type (specified by object identifier) and one or more attribute
values. Some attribute types are restricted in their definition to have a
single value; others may have multiple values. This type is defined in [7].
CertificationRequestInfo An ASN.1 type that specifies a subject name, a public key,
and a set of attributes. This type is defined in [16].
ContentInfo An ASN.1 type that specifies content exchanged between entities. The
contentType field, which has type OBJECT IDENTIFIER, specifies the
content type, and the content field, whose type is defined by the
contentType field, contains the content value. This type is defined in [14]
and [3].
PrivateKeyInfo A type that specifies a private key and a set of extended attributes.
This type and the associated
EncryptedPrivateKeyInfo type are defined in
[15].
SignerInfo A type that specifies per-signer information in the signed-data content
type, including a set of attributes authenticated by the signer, and a set of
attributes not authenticated by the signer. This type is defined in [14] and
[3].
DER Distinguished Encoding Rules for ASN.1, as defined in [6].
UCS Universal Multiple-Octet Coded Character Set, as defined in [11].
PKCS #9 V2.0: SELECTED OBJECT CLASSES AND ATTRIBUTE TYPES 3
Copyright © 1991-2000 RSA Laboratories.
UTF8String UCS Transformation Format encoded string. The UTF-8 encoding is
defined in [11].
2.2 Notation and document conventions
In this document, all ASN.1 types and values are written in bold Helvetica. Attribute type
and object class definitions are written in the ASN.1 value notation defined in [5].
Appendix B contains most of these definitions written in the augmented BNF notation
defined in [2] as well. This has been done in an attempt to simplify the task of integrating
this work into LDAP [22] development environments.
The keywords “MUST”, “MUST NOT”, “REQUIRED”, “SHALL”, “SHALL NOT”,
“SHOULD”, “SHOULD NOT”, “RECOMMENDED”, “MAY”, and “OPTIONAL” in
this document are to be interpreted as described in [1].
3. Overview
This document specifies two new auxiliary object classes, pkcsEntity and naturalPerson,
and some new attribute types and matching rules. All ASN.1 object classes, attributes,
matching rules and types are exported for use in other environments.
Attribute types defined in this document that are useful in conjunction with storage of
PKCS-related data and the pkcsEntity object class includes PKCS #12 PFX PDUs, PKCS
#15 tokens and encrypted private keys.
Attribute types defined in this document that are useful in conjunction with PKCS #10
certificate requests and the naturalPerson object class includes electronic-mail address,
pseudonym, unstructured name, and unstructured address.
Attribute types defined in this document that are useful in PKCS #7 digitally signed
messages are content type, message digest, signing time, sequence number, random nonce
and countersignature. The attributes would be used in the authenticatedAttributes and
unauthenticatedAttributes fields of a SignerInfo or an AuthenticatedData ([3]) value.
Attribute types that are useful especially in PKCS #10 certification requests are the
challenge password and the extension-request attribute. The attributes would be used in
the
attributes field of a CertificationRequestInfo value.
Note – The attributes types (from [8]) in Table 1, and probably several others, might also
be helpful in PKCS #10, PKCS #12 and PKCS #15-aware applications.
businessCategory preferredDeliveryMethod
commonName presentationAddress
countryName registeredAddress
description roleOccupant
destinationIndicator serialNumber
PKCS #9 V2.0: SELECTED OBJECT CLASSES AND ATTRIBUTE TYPES 4
Copyright © 1991-2000 RSA Laboratories.
facsimileTelephoneNumber stateOrProvinceName
iSDNAddress streetAddress
localityName supportedApplicationContext
member surname
objectClass telephoneNumber
organizationName teletexTerminalIdentifier
physicalDeliveryOfficeName telexNumber
postalAddress title
postalCode x121Address
postOfficeBox
Table 1: ISO/IEC 9594-6 attribute types useful in PKCS documents
4. Auxiliary object classes
This document defines two new auxiliary object classes: pkcsEntity and naturalPerson.
4.1 The pkcsEntity auxiliary object class
The pkcsEntity object class is a general-purpose auxiliary object class that is intended to
hold attributes about PKCS-related entities. It has been designed for use within directory
services based on the LDAP protocol [22] and the X.500 family of protocols, where
support for PKCS-defined attributes is considered useful.
pkcsEntity OBJECT-CLASS ::= {
SUBCLASS OF { top }
KIND auxiliary
MAY CONTAIN { PKCSEntityAttributeSet }
ID pkcs-9-oc-pkcsEntity
}
PKCSEntityAttributeSet ATTRIBUTE ::= {
pKCS7PDU |
userPKCS12 |
pKCS15Token |
encryptedPrivateKeyInfo,
... -- For future extensions
}
Attributes in the PKCSEntityAttributeSet are defined in Section 5.
4.2 The
naturalPerson auxiliary object class
The naturalPerson object class is a general-purpose auxiliary object class that is intended
to hold attributes about human beings. It has been designed for use within directory
services based on the LDAP protocol [22] and the X.500 family of protocols, where
support for these attributes is considered useful.
PKCS #9 V2.0: SELECTED OBJECT CLASSES AND ATTRIBUTE TYPES 5
Copyright © 1991-2000 RSA Laboratories.
naturalPerson OBJECT-CLASS ::= {
SUBCLASS OF { top }
KIND auxilary
MAY CONTAIN { NaturalPersonAttributeSet }
ID pkcs-9-oc-naturalPerson
}
NaturalPersonAttributeSet ATTRIBUTE ::= {
emailAddress |
unstructuredName |
unstructuredAddress |
dateOfBirth |
placeOfBirth |
gender |
countryOfCitizenship |
countryOfResidence |
pseudonym |
serialNumber,
... -- For future extensions
}
Attributes in the NaturalPersonAttributeSet are defined in Section 5.
5. Selected attribute types
5.1 Attribute types for use with the “pkcsEntity” object class
5.1.1 PKCS #7 PDU
PKCS #7 provides several formats for enveloped, signed and otherwise protected data.
When such information is stored in a directory service, the pKCS7PDU attribute may be
used.
pKCS7PDU ATTRIBUTE ::= {
WITH SYNTAX ContentInfo
ID pkcs-9-at-pkcs7PDU
}
5.1.2 PKCS #12 token
PKCS #12 provides a format for exchange of personal identity information. When such
information is stored in a directory service, the userPKCS12 attribute should be used.
userPKCS12 ATTRIBUTE ::= {
WITH SYNTAX PFX
ID pkcs-9-at-userPKCS12
}
This type was originally defined in [20].
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