Internet DRAFT - draft-ietf-lamps-pkix-shake
draft-ietf-lamps-pkix-shake
LAMPS WG P. Kampanakis
Internet-Draft Cisco Systems
Updates: 3279 (if approved) Q. Dang
Intended status: Standards Track NIST
Expires: January 22, 2020 July 21, 2019
Internet X.509 Public Key Infrastructure: Additional Algorithm
Identifiers for RSASSA-PSS and ECDSA using SHAKEs
draft-ietf-lamps-pkix-shake-15
Abstract
Digital signatures are used to sign messages, X.509 certificates and
CRLs. This document updates the "Algorithms and Identifiers for the
Internet X.509 Public Key Infrastructure Certificate and Certificate
Revocation List Profile" (RFC3279) and describes the conventions for
using the SHAKE function family in Internet X.509 certificates and
revocation lists as one-way hash functions with the RSA Probabilistic
signature and ECDSA signature algorithms. The conventions for the
associated subject public keys are also described.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
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."
This Internet-Draft will expire on January 22, 2020.
Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
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carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Change Log . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 5
4. Identifiers . . . . . . . . . . . . . . . . . . . . . . . . . 5
5. Use in PKIX . . . . . . . . . . . . . . . . . . . . . . . . . 6
5.1. Signatures . . . . . . . . . . . . . . . . . . . . . . . 6
5.1.1. RSASSA-PSS Signatures . . . . . . . . . . . . . . . . 7
5.1.2. ECDSA Signatures . . . . . . . . . . . . . . . . . . 8
5.2. Public Keys . . . . . . . . . . . . . . . . . . . . . . . 9
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 9
7. Security Considerations . . . . . . . . . . . . . . . . . . . 10
8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 10
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 11
9.1. Normative References . . . . . . . . . . . . . . . . . . 11
9.2. Informative References . . . . . . . . . . . . . . . . . 12
Appendix A. ASN.1 module . . . . . . . . . . . . . . . . . . . . 13
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 17
1. Change Log
[ EDNOTE: Remove this section before publication. ]
o draft-ietf-lamps-pkix-shake-15:
* Minor editorial nits.
o draft-ietf-lamps-pkix-shake-14:
* Fixing error with incorrect preimage resistance bits for SHA128
and SHA256.
o draft-ietf-lamps-pkix-shake-13:
* Addressing one applicable comment from Dan M. about sec levels
while in secdir review of draft-ietf-lamps-cms-shakes.
* Addressing comment from Scott B.'s opsdir review about
references in the abstract.
o draft-ietf-lamps-pkix-shake-12:
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* Nits identified by Roman, Eric V. Ben K., Barry L. in ballot
position review.
o draft-ietf-lamps-pkix-shake-11:
* Nits identified by Roman in AD Review.
o draft-ietf-lamps-pkix-shake-10:
* Updated IANA considerations section to request for OID
assignments.
o draft-ietf-lamps-pkix-shake-09:
* Fixed minor text nits.
* Added text name allocation for SHAKEs in IANA considerations.
* Updates in Sec Considerations section.
o draft-ietf-lamps-pkix-shake-08:
* Small nits from Russ while in WGLC.
o draft-ietf-lamps-pkix-shake-07:
* Incorporated Eric's suggestion from WGLC.
o draft-ietf-lamps-pkix-shake-06:
* Added informative references.
* Updated ASN.1 so it compiles.
* Updated IANA considerations.
o draft-ietf-lamps-pkix-shake-05:
* Added RFC8174 reference and text.
* Explicitly explained why RSASSA-PSS-params are omitted in
section 5.1.1.
* Simplified Public Keys section by removing redundant info from
RFCs.
o draft-ietf-lamps-pkix-shake-04:
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* Removed paragraph suggesting KMAC to be used in generating k in
Deterministic ECDSA. That should be RFC6979-bis.
* Removed paragraph from Security Considerations that talks about
randomness of k because we are using deterministic ECDSA.
* Various ASN.1 fixes.
* Text fixes.
o draft-ietf-lamps-pkix-shake-03:
* Updates based on suggestions and clarifications by Jim.
* Added ASN.1.
o draft-ietf-lamps-pkix-shake-02:
* Significant reorganization of the sections to simplify the
introduction, the new OIDs and their use in PKIX.
* Added new OIDs for RSASSA-PSS that hardcode hash, salt and MGF,
according the WG consensus.
* Updated Public Key section to use the new RSASSA-PSS OIDs and
clarify the algorithm identifier usage.
* Removed the no longer used SHAKE OIDs from section 3.1.
* Consolidated subsection for message digest algorithms.
* Text fixes.
o draft-ietf-lamps-pkix-shake-01:
* Changed titles and section names.
* Removed DSA after WG discussions.
* Updated shake OID names and parameters, added MGF1 section.
* Updated RSASSA-PSS section.
* Added Public key algorithm OIDs.
* Populated Introduction and IANA sections.
o draft-ietf-lamps-pkix-shake-00:
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* Initial version
2. Introduction
[RFC3279] defines cryptographic algorithm identifiers for the
Internet X.509 Certificate and Certificate Revocation Lists (CRL)
profile [RFC5280]. This document updates RFC3279 and defines
identifiers for several cryptographic algorithms that use variable
length output SHAKE functions introduced in [SHA3] which can be used
with .
In the SHA-3 family, two extendable-output functions (SHAKEs),
SHAKE128 and SHAKE256, are defined. Four other hash function
instances, SHA3-224, SHA3-256, SHA3-384, and SHA3-512, are also
defined but are out of scope for this document. A SHAKE is a
variable length hash function defined as SHAKE(M, d) where the output
is a d-bits-long digest of message M. The corresponding collision
and second-preimage-resistance strengths for SHAKE128 are
min(d/2,128) and min(d,128) bits, respectively (Appendix A.1 [SHA3]).
And the corresponding collision and second-preimage-resistance
strengths for SHAKE256 are min(d/2,256) and min(d,256) bits,
respectively.
A SHAKE can be used as the message digest function (to hash the
message to be signed) in RSASSA-PSS [RFC8017] and ECDSA [X9.62] and
as the hash in the mask generation function (MGF) in RSASSA-PSS.
3. Terminology
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in BCP
14 [RFC2119] [RFC8174] when, and only when, they appear in all
capitals, as shown here.
4. Identifiers
This section defines four new object identifiers (OIDs), for RSASSA-
PSS and ECDSA with each of SHAKE128 and SHAKE256. The same algorithm
identifiers can be used for identifying a public key in RSASSA-PSS.
The new identifiers for RSASSA-PSS signatures using SHAKEs are below.
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id-RSASSA-PSS-SHAKE128 OBJECT IDENTIFIER ::= { iso(1)
identified-organization(3) dod(6) internet(1)
security(5) mechanisms(5) pkix(7) algorithms(6)
TBD1 }
id-RSASSA-PSS-SHAKE256 OBJECT IDENTIFIER ::= { iso(1)
identified-organization(3) dod(6) internet(1)
security(5) mechanisms(5) pkix(7) algorithms(6)
TBD2 }
The new algorithm identifiers of ECDSA signatures using SHAKEs are
below.
id-ecdsa-with-shake128 OBJECT IDENTIFIER ::= { iso(1)
identified-organization(3) dod(6) internet(1)
security(5) mechanisms(5) pkix(7) algorithms(6)
TBD3 }
id-ecdsa-with-shake256 OBJECT IDENTIFIER ::= { iso(1)
identified-organization(3) dod(6) internet(1)
security(5) mechanisms(5) pkix(7) algorithms(6)
TBD4 }
The parameters for the four identifiers above MUST be absent. That
is, the identifier SHALL be a SEQUENCE of one component, the OID.
Section 5.1.1 and Section 5.1.2 specify the required output length
for each use of SHAKE128 or SHAKE256 in RSASSA-PSS and ECDSA. In
summary, when hashing messages to be signed, output lengths of
SHAKE128 and SHAKE256 are 256 and 512 bits respectively. When the
SHAKEs are used as mask generation functions RSASSA-PSS, their output
length is (8*ceil((n-1)/8) - 264) or (8*ceil((n-1)/8) - 520) bits,
respectively, where n is the RSA modulus size in bits.
5. Use in PKIX
5.1. Signatures
Signatures are used in a number of different ASN.1 structures. As
shown in the ASN.1 representation from [RFC5280] below, in an X.509
certificate, a signature is encoded with an algorithm identifier in
the signatureAlgorithm attribute and a signatureValue attribute that
contains the actual signature.
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Certificate ::= SEQUENCE {
tbsCertificate TBSCertificate,
signatureAlgorithm AlgorithmIdentifier,
signatureValue BIT STRING }
The identifiers defined in Section 4 can be used as the
AlgorithmIdentifier in the signatureAlgorithm field in the sequence
Certificate and the signature field in the sequence TBSCertificate in
X.509 [RFC5280]. The parameters of these signature algorithms are
absent as explained in Section 4.
Conforming CA implementations MUST specify the algorithms explicitly
by using the OIDs specified in Section 4 when encoding RSASSA-PSS or
ECDSA with SHAKE signatures in certificates and CRLs. Conforming
client implementations that process certificates and CRLs using
RSASSA-PSS or ECDSA with SHAKE MUST recognize the corresponding OIDs.
Encoding rules for RSASSA-PSS and ECDSA signature values are
specified in [RFC4055] and [RFC5480], respectively.
When using RSASSA-PSS or ECDSA with SHAKEs, the RSA modulus and ECDSA
curve order SHOULD be chosen in line with the SHAKE output length.
Refer to Section 7 for more details.
5.1.1. RSASSA-PSS Signatures
The RSASSA-PSS algorithm is defined in [RFC8017]. When id-RSASSA-
PSS-SHAKE128 or id-RSASSA-PSS-SHAKE256 specified in Section 4 is
used, the encoding MUST omit the parameters field. That is, the
AlgorithmIdentifier SHALL be a SEQUENCE of one component, id-RSASSA-
PSS-SHAKE128 or id-RSASSA-PSS-SHAKE256. [RFC4055] defines RSASSA-
PSS-params that are used to define the algorithms and inputs to the
algorithm. This specification does not use parameters because the
hash, mask generation algorithm, trailer and salt are embedded in the
OID definition.
The hash algorithm to hash a message being signed and the hash
algorithm used as the mask generation function in RSASSA-PSS MUST be
the same: both SHAKE128 or both SHAKE256. The output length of the
hash algorithm which hashes the message SHALL be 32 (for SHAKE128) or
64 bytes (for SHAKE256).
The mask generation function takes an octet string of variable length
and a desired output length as input, and outputs an octet string of
the desired length. In RSASSA-PSS with SHAKEs, the SHAKEs MUST be
used natively as the MGF function, instead of the MGF1 algorithm that
uses the hash function in multiple iterations as specified in
Section B.2.1 of [RFC8017]. In other words, the MGF is defined as
the SHAKE128 or SHAKE256 output of the mgfSeed for id-RSASSA-PSS-
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SHAKE128 and id-RSASSA-PSS-SHAKE256, respectively. The mgfSeed is
the seed from which mask is generated, an octet string [RFC8017]. As
explained in Step 9 of section 9.1.1 of [RFC8017], the output length
of the MGF is emLen - hLen - 1 bytes. emLen is the maximum message
length ceil((n-1)/8), where n is the RSA modulus in bits. hLen is 32
and 64-bytes for id-RSASSA-PSS-SHAKE128 and id-RSASSA-PSS-SHAKE256,
respectively. Thus when SHAKE is used as the MGF, the SHAKE output
length maskLen is (8*emLen - 264) or (8*emLen - 520) bits,
respectively. For example, when RSA modulus n is 2048, the output
length of SHAKE128 or SHAKE256 as the MGF will be 1784 or 1528-bits
when id-RSASSA-PSS-SHAKE128 or id-RSASSA-PSS-SHAKE256 is used,
respectively.
The RSASSA-PSS saltLength MUST be 32 bytes for id-RSASSA-PSS-SHAKE128
or 64 bytes for id-RSASSA-PSS-SHAKE256. Finally, the trailerField
MUST be 1, which represents the trailer field with hexadecimal value
0xBC [RFC8017].
5.1.2. ECDSA Signatures
The Elliptic Curve Digital Signature Algorithm (ECDSA) is defined in
[X9.62]. When the id-ecdsa-with-shake128 or id-ecdsa-with-shake256
(specified in Section 4) algorithm identifier appears, the respective
SHAKE function (SHAKE128 or SHAKE256) is used as the hash. The
encoding MUST omit the parameters field. That is, the
AlgorithmIdentifier SHALL be a SEQUENCE of one component, the OID id-
ecdsa-with-shake128 or id-ecdsa-with-shake256.
For simplicity and compliance with the ECDSA standard specification,
the output length of the hash function must be explicitly determined.
The output length, d, for SHAKE128 or SHAKE256 used in ECDSA MUST be
256 or 512 bits, respectively.
Conforming CA implementations that generate ECDSA with SHAKE
signatures in certificates or CRLs SHOULD generate such signatures
with a deterministically generated, non-random k in accordance with
all the requirements specified in [RFC6979]. They MAY also generate
such signatures in accordance with all other recommendations in
[X9.62] or [SEC1] if they have a stated policy that requires
conformance to those standards. Those standards have not specified
SHAKE128 and SHAKE256 as hash algorithm options. However, SHAKE128
and SHAKE256 with output length being 32 and 64 octets, respectively,
can be used instead of 256 and 512-bit output hash algorithms such as
SHA256 and SHA512.
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5.2. Public Keys
Certificates conforming to [RFC5280] can convey a public key for any
public key algorithm. The certificate indicates the public key
algorithm through an algorithm identifier. This algorithm identifier
is an OID and optionally associated parameters. The conventions and
encoding for RSASSA-PSS and ECDSA public keys algorithm identifiers
are as specified in Section 2.3.1 and 2.3.5 of [RFC3279], Section 3.1
of [RFC4055] and Section 2.1 of [RFC5480].
Traditionally, the rsaEncryption object identifier is used to
identify RSA public keys. The rsaEncryption object identifier
continues to identify the subject public key when the RSA private key
owner does not wish to limit the use of the public key exclusively to
RSASSA-PSS with SHAKEs. When the RSA private key owner wishes to
limit the use of the public key exclusively to RSASSA-PSS with
SHAKEs, the AlgorithmIdentifiers for RSASSA-PSS defined in Section 4
SHOULD be used as the algorithm field in the SubjectPublicKeyInfo
sequence [RFC5280]. Conforming client implementations that process
RSASSA-PSS with SHAKE public keys when processing certificates and
CRLs MUST recognize the corresponding OIDs.
Conforming CA implementations MUST specify the X.509 public key
algorithm explicitly by using the OIDs specified in Section 4 when
encoding ECDSA with SHAKE public keys in certificates and CRLs.
Conforming client implementations that process ECDSA with SHAKE
public keys when processing certificates and CRLs MUST recognize the
corresponding OIDs.
The identifier parameters, as explained in Section 4, MUST be absent.
6. IANA Considerations
One object identifier for the ASN.1 module in Appendix A is requested
for the SMI Security for PKIX Module Identifiers (1.3.6.1.5.5.7.0)
registry:
+---------+--------------------------+--------------------+
| Decimal | Description | References |
+---------+--------------------------+--------------------+
| TBD | id-mod-pkix1-shakes-2019 | [EDNOTE: THIS RFC] |
+---------+--------------------------+--------------------+
IANA is requested to update the SMI Security for PKIX Algorithms
[SMI-PKIX] (1.3.6.1.5.5.7.6) registry with four additional entries:
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+---------+------------------------+--------------------+
| Decimal | Description | References |
+---------+------------------------+--------------------+
| TBD1 | id-RSASSA-PSS-SHAKE128 | [EDNOTE: THIS RFC] |
| TBD2 | id-RSASSA-PSS-SHAKE256 | [EDNOTE: THIS RFC] |
| TBD3 | id-ecdsa-with-shake128 | [EDNOTE: THIS RFC] |
| TBD4 | id-ecdsa-with-shake256 | [EDNOTE: THIS RFC] |
+---------+------------------------+--------------------+
IANA is also requested to update the Hash Function Textual Names
Registry [Hash-Texts] with two additional entries for SHAKE128 and
SHAKE256:
+--------------------+-------------------------+--------------------+
| Hash Function Name | OID | Reference |
+--------------------+-------------------------+--------------------+
| shake128 | 2.16.840.1.101.3.4.2.11 | [EDNOTE: THIS RFC] |
| shake256 | 2.16.840.1.101.3.4.2.12 | [EDNOTE: THIS RFC] |
+--------------------+-------------------------+--------------------+
7. Security Considerations
This document updates [RFC3279]. The security considerations section
of that document applies to this specification as well.
NIST has defined appropriate use of the hash functions in terms of
the algorithm strengths and expected time frames for secure use in
Special Publications (SPs) [SP800-78-4] and [SP800-107]. These
documents can be used as guides to choose appropriate key sizes for
various security scenarios.
SHAKE128 with output length of 256-bits offers 128-bits of collision
and preimage resistance. Thus, SHAKE128 OIDs in this specification
are RECOMMENDED with 2048 (112-bit security) or 3072-bit (128-bit
security) RSA modulus or curves with group order of 256-bits (128-bit
security). SHAKE256 with 512-bits output length offers 256-bits of
collision and preimage resistance. Thus, the SHAKE256 OIDs in this
specification are RECOMMENDED with 4096-bit RSA modulus or higher or
curves with group order of at least 521-bits (256-bit security).
Note that we recommended 4096-bit RSA because we would need 15360-bit
modulus for 256-bits of security which is impractical for today's
technology.
8. Acknowledgements
We would like to thank Sean Turner, Jim Schaad and Eric Rescorla for
their valuable contributions to this document.
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The authors would like to thank Russ Housley for his guidance and
very valuable contributions with the ASN.1 module.
9. References
9.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<https://www.rfc-editor.org/info/rfc2119>.
[RFC3279] Bassham, L., Polk, W., and R. Housley, "Algorithms and
Identifiers for the Internet X.509 Public Key
Infrastructure Certificate and Certificate Revocation List
(CRL) Profile", RFC 3279, DOI 10.17487/RFC3279, April
2002, <https://www.rfc-editor.org/info/rfc3279>.
[RFC4055] Schaad, J., Kaliski, B., and R. Housley, "Additional
Algorithms and Identifiers for RSA Cryptography for use in
the Internet X.509 Public Key Infrastructure Certificate
and Certificate Revocation List (CRL) Profile", RFC 4055,
DOI 10.17487/RFC4055, June 2005,
<https://www.rfc-editor.org/info/rfc4055>.
[RFC5280] Cooper, D., Santesson, S., Farrell, S., Boeyen, S.,
Housley, R., and W. Polk, "Internet X.509 Public Key
Infrastructure Certificate and Certificate Revocation List
(CRL) Profile", RFC 5280, DOI 10.17487/RFC5280, May 2008,
<https://www.rfc-editor.org/info/rfc5280>.
[RFC5480] Turner, S., Brown, D., Yiu, K., Housley, R., and T. Polk,
"Elliptic Curve Cryptography Subject Public Key
Information", RFC 5480, DOI 10.17487/RFC5480, March 2009,
<https://www.rfc-editor.org/info/rfc5480>.
[RFC8017] Moriarty, K., Ed., Kaliski, B., Jonsson, J., and A. Rusch,
"PKCS #1: RSA Cryptography Specifications Version 2.2",
RFC 8017, DOI 10.17487/RFC8017, November 2016,
<https://www.rfc-editor.org/info/rfc8017>.
[RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,
May 2017, <https://www.rfc-editor.org/info/rfc8174>.
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[SHA3] National Institute of Standards and Technology (NIST),
"SHA-3 Standard - Permutation-Based Hash and Extendable-
Output Functions FIPS PUB 202", August 2015,
<https://www.nist.gov/publications/sha-3-standard-
permutation-based-hash-and-extendable-output-functions>.
9.2. Informative References
[Hash-Texts]
IANA, "Hash Function Textual Names", July 2017,
<https://www.iana.org/assignments/hash-function-text-
names/hash-function-text-names.xhtml>.
[RFC5912] Hoffman, P. and J. Schaad, "New ASN.1 Modules for the
Public Key Infrastructure Using X.509 (PKIX)", RFC 5912,
DOI 10.17487/RFC5912, June 2010,
<https://www.rfc-editor.org/info/rfc5912>.
[RFC6979] Pornin, T., "Deterministic Usage of the Digital Signature
Algorithm (DSA) and Elliptic Curve Digital Signature
Algorithm (ECDSA)", RFC 6979, DOI 10.17487/RFC6979, August
2013, <https://www.rfc-editor.org/info/rfc6979>.
[SEC1] Standards for Efficient Cryptography Group, "SEC 1:
Elliptic Curve Cryptography", May 2009,
<http://www.secg.org/sec1-v2.pdf>.
[SMI-PKIX]
IANA, "SMI Security for PKIX Algorithms", March 2019,
<https://www.iana.org/assignments/smi-numbers/
smi-numbers.xhtml#smi-numbers-1.3.6.1.5.5.7.6>.
[SP800-107]
National Institute of Standards and Technology (NIST),
"SP800-107: Recommendation for Applications Using Approved
Hash Algorithms", May 2014,
<https://csrc.nist.gov/csrc/media/publications/sp/800-107/
rev-1/final/documents/draft_revised_sp800-107.pdf>.
[SP800-78-4]
National Institute of Standards and Technology (NIST),
"SP800-78-4: Cryptographic Algorithms and Key Sizes for
Personal Identity Verification", May 2014,
<https://csrc.nist.gov/csrc/media/publications/sp/800-
78/4/final/documents/sp800_78-4_revised_draft.pdf>.
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[X9.62] American National Standard for Financial Services (ANSI),
"X9.62-2005: Public Key Cryptography for the Financial
Services Industry: The Elliptic Curve Digital Signature
Standard (ECDSA)", November 2005.
Appendix A. ASN.1 module
This appendix includes the ASN.1 module for SHAKEs in X.509. This
module does not come from any existing RFC.
PKIXAlgsForSHAKE-2019 { iso(1) identified-organization(3) dod(6)
internet(1) security(5) mechanisms(5) pkix(7) id-mod(0)
id-mod-pkix1-shakes-2019(TBD) }
DEFINITIONS EXPLICIT TAGS ::=
BEGIN
-- EXPORTS ALL;
IMPORTS
-- FROM [RFC5912]
PUBLIC-KEY, SIGNATURE-ALGORITHM, DIGEST-ALGORITHM, SMIME-CAPS
FROM AlgorithmInformation-2009
{ iso(1) identified-organization(3) dod(6) internet(1) security(5)
mechanisms(5) pkix(7) id-mod(0)
id-mod-algorithmInformation-02(58) }
-- FROM [RFC5912]
RSAPublicKey, rsaEncryption, pk-rsa, pk-ec,
CURVE, id-ecPublicKey, ECPoint, ECParameters, ECDSA-Sig-Value
FROM PKIXAlgs-2009 { iso(1) identified-organization(3) dod(6)
internet(1) security(5) mechanisms(5) pkix(7) id-mod(0)
id-mod-pkix1-algorithms2008-02(56) }
;
--
-- Message Digest Algorithms (mda-)
--
DigestAlgorithms DIGEST-ALGORITHM ::= {
-- This expands DigestAlgorithms from [RFC5912]
mda-shake128 |
mda-shake256,
...
}
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--
-- One-Way Hash Functions
--
-- SHAKE128
mda-shake128 DIGEST-ALGORITHM ::= {
IDENTIFIER id-shake128 -- with output length 32 bytes.
}
id-shake128 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16)
us(840) organization(1) gov(101)
csor(3) nistAlgorithm(4)
hashAlgs(2) 11 }
-- SHAKE256
mda-shake256 DIGEST-ALGORITHM ::= {
IDENTIFIER id-shake256 -- with output length 64 bytes.
}
id-shake256 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16)
us(840) organization(1) gov(101)
csor(3) nistAlgorithm(4)
hashAlgs(2) 12 }
--
-- Public Key (pk-) Algorithms
--
PublicKeys PUBLIC-KEY ::= {
-- This expands PublicKeys from [RFC5912]
pk-rsaSSA-PSS-SHAKE128 |
pk-rsaSSA-PSS-SHAKE256,
...
}
-- The hashAlgorithm is mda-shake128
-- The maskGenAlgorithm is id-shake128
-- Mask Gen Algorithm is SHAKE128 with output length
-- (8*ceil((n-1)/8) - 264) bits, where n is the RSA
-- modulus in bits.
-- The saltLength is 32. The trailerField is 1.
pk-rsaSSA-PSS-SHAKE128 PUBLIC-KEY ::= {
IDENTIFIER id-RSASSA-PSS-SHAKE128
KEY RSAPublicKey
PARAMS ARE absent
-- Private key format not in this module --
CERT-KEY-USAGE { nonRepudiation, digitalSignature,
keyCertSign, cRLSign }
}
-- The hashAlgorithm is mda-shake256
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-- The maskGenAlgorithm is id-shake256
-- Mask Gen Algorithm is SHAKE256 with output length
-- (8*ceil((n-1)/8) - 520)-bits, where n is the RSA
-- modulus in bits.
-- The saltLength is 64. The trailerField is 1.
pk-rsaSSA-PSS-SHAKE256 PUBLIC-KEY ::= {
IDENTIFIER id-RSASSA-PSS-SHAKE256
KEY RSAPublicKey
PARAMS ARE absent
-- Private key format not in this module --
CERT-KEY-USAGE { nonRepudiation, digitalSignature,
keyCertSign, cRLSign }
}
--
-- Signature Algorithms (sa-)
--
SignatureAlgs SIGNATURE-ALGORITHM ::= {
-- This expands SignatureAlgorithms from [RFC5912]
sa-rsassapssWithSHAKE128 |
sa-rsassapssWithSHAKE256 |
sa-ecdsaWithSHAKE128 |
sa-ecdsaWithSHAKE256,
...
}
--
-- SMIME Capabilities (sa-)
--
SMimeCaps SMIME-CAPS ::= {
-- The expands SMimeCaps from [RFC5912]
sa-rsassapssWithSHAKE128.&smimeCaps |
sa-rsassapssWithSHAKE256.&smimeCaps |
sa-ecdsaWithSHAKE128.&smimeCaps |
sa-ecdsaWithSHAKE256.&smimeCaps,
...
}
-- RSASSA-PSS with SHAKE128
sa-rsassapssWithSHAKE128 SIGNATURE-ALGORITHM ::= {
IDENTIFIER id-RSASSA-PSS-SHAKE128
PARAMS ARE absent
-- The hashAlgorithm is mda-shake128
-- The maskGenAlgorithm is id-shake128
-- Mask Gen Algorithm is SHAKE128 with output length
-- (8*ceil((n-1)/8) - 264) bits, where n is the RSA
-- modulus in bits.
-- The saltLength is 32. The trailerField is 1
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HASHES { mda-shake128 }
PUBLIC-KEYS { pk-rsa | pk-rsaSSA-PSS-SHAKE128 }
SMIME-CAPS { IDENTIFIED BY id-RSASSA-PSS-SHAKE128 }
}
id-RSASSA-PSS-SHAKE128 OBJECT IDENTIFIER ::= { iso(1)
identified-organization(3) dod(6) internet(1)
security(5) mechanisms(5) pkix(7) algorithms(6)
TBD1 }
-- RSASSA-PSS with SHAKE256
sa-rsassapssWithSHAKE256 SIGNATURE-ALGORITHM ::= {
IDENTIFIER id-RSASSA-PSS-SHAKE256
PARAMS ARE absent
-- The hashAlgorithm is mda-shake256
-- The maskGenAlgorithm is id-shake256
-- Mask Gen Algorithm is SHAKE256 with output length
-- (8*ceil((n-1)/8) - 520)-bits, where n is the
-- RSA modulus in bits.
-- The saltLength is 64. The trailerField is 1.
HASHES { mda-shake256 }
PUBLIC-KEYS { pk-rsa | pk-rsaSSA-PSS-SHAKE256 }
SMIME-CAPS { IDENTIFIED BY id-RSASSA-PSS-SHAKE256 }
}
id-RSASSA-PSS-SHAKE256 OBJECT IDENTIFIER ::= { iso(1)
identified-organization(3) dod(6) internet(1)
security(5) mechanisms(5) pkix(7) algorithms(6)
TBD2 }
-- ECDSA with SHAKE128
sa-ecdsaWithSHAKE128 SIGNATURE-ALGORITHM ::= {
IDENTIFIER id-ecdsa-with-shake128
VALUE ECDSA-Sig-Value
PARAMS ARE absent
HASHES { mda-shake128 }
PUBLIC-KEYS { pk-ec }
SMIME-CAPS { IDENTIFIED BY id-ecdsa-with-shake128 }
}
id-ecdsa-with-shake128 OBJECT IDENTIFIER ::= { iso(1)
identified-organization(3) dod(6) internet(1)
security(5) mechanisms(5) pkix(7) algorithms(6)
TBD3 }
-- ECDSA with SHAKE256
sa-ecdsaWithSHAKE256 SIGNATURE-ALGORITHM ::= {
IDENTIFIER id-ecdsa-with-shake256
VALUE ECDSA-Sig-Value
PARAMS ARE absent
HASHES { mda-shake256 }
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PUBLIC-KEYS { pk-ec }
SMIME-CAPS { IDENTIFIED BY id-ecdsa-with-shake256 }
}
id-ecdsa-with-shake256 OBJECT IDENTIFIER ::= { iso(1)
identified-organization(3) dod(6) internet(1)
security(5) mechanisms(5) pkix(7) algorithms(6)
TBD4 }
END
Authors' Addresses
Panos Kampanakis
Cisco Systems
Email: pkampana@cisco.com
Quynh Dang
NIST
100 Bureau Drive, Stop 8930
Gaithersburg, MD 20899-8930
USA
Email: quynh.dang@nist.gov
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