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draft-celi-acvp-sha3-00.txt
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TBD C. Celi, Ed.
Internet-Draft National Institute of Standards and Technology
Intended status: Informational November 1, 2018
Expires: May 5, 2019
ACVP SHA3 and SHAKE JSON Specification
draft-ietf-acvp-subsha3-1.0
Abstract
This document defines the JSON schema for using SHA3 and SHAKE with
the ACVP specification.
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 May 5, 2019.
Copyright Notice
Copyright (c) 2018 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
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.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 3
2. Supported Hash Algorithms . . . . . . . . . . . . . . . . . . 3
3. Test Types and Test Coverage . . . . . . . . . . . . . . . . 3
3.1. Monte Carlo tests for SHA3 and SHAKE . . . . . . . . . . 3
3.1.1. SHA3 Monte Carlo Test . . . . . . . . . . . . . . . . 4
3.1.2. SHAKE Monte Carlo Test . . . . . . . . . . . . . . . 4
3.2. Test Coverage . . . . . . . . . . . . . . . . . . . . . . 4
4. Capabilities Registration . . . . . . . . . . . . . . . . . . 4
4.1. SHA3 and SHAKE Algorithm Capabilities Registration . . . 4
5. Test Vectors . . . . . . . . . . . . . . . . . . . . . . . . 5
5.1. Test Groups . . . . . . . . . . . . . . . . . . . . . . . 6
5.2. Test Case JSON Schema . . . . . . . . . . . . . . . . . . 7
5.3. Test Vector Responses . . . . . . . . . . . . . . . . . . 7
5.4. Acknowledgements . . . . . . . . . . . . . . . . . . . . 8
5.5. IANA Considerations . . . . . . . . . . . . . . . . . . . 9
5.6. Security Considerations . . . . . . . . . . . . . . . . . 9
6. References . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.1. Normative References . . . . . . . . . . . . . . . . . . 9
6.2. Informative References . . . . . . . . . . . . . . . . . 9
Appendix A. Example Secure Hash Capabilities JSON Object . . . . 9
Appendix B. Example Test Vectors JSON Object . . . . . . . . . . 10
Appendix C. Example Test Results JSON Object . . . . . . . . . . 12
Appendix D. Example Test Results JSON Object . . . . . . . . . . 13
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 15
1. Introduction
The Automated Cryptographic Validation Protocol (ACVP) defines a
mechanism to automatically verify the cryptographic implementation of
a software or hardware cryptographic module. The intention of the
protocol is to minimize human involvement in the testing of
cryptography. The ACVP specification defines how a cryptographic
module communicates with an ACVP server, including cryptographic
capabilities negotiation, session management, authentication, vector
processing and more. Note that the ACVP specification does not
define algorithm-specific JSON constructs for performing the
cryptographic validation. However, a series of ACVP sub-
specifications defines the constructs for testing individual
cryptographic algorithms. Each sub-specification addresses a
specific class or subset of cryptographic algorithms. This sub-
specification defines the JSON constructs for testing the SHA3 and
SHAKE algorithms using ACVP. The ACVP server performs a set of tests
on the hash algorithms in order to assess the correctness and
robustness of the implementation. A typical ACVP validation session
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would require multiple tests to be performed for every supported
cryptographic algorithm, such as SHA3-256, SHA3-512 and SHAKE-256.
1.1. Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted in RFC 2119 [RFC2119].
2. Supported Hash Algorithms
The following SHA3-based hash algorithms may be advertised by this
ACVP compliant crypto module:
o SHA3-224
o SHA3-256
o SHA3-384
o SHA3-512
o SHAKE-128
o SHAKE-256
Other hash algorithms may be advertised by the ACVP elsewhere.
3. Test Types and Test Coverage
This section describes the design of the tests used to validate
implementations of SHA3 and SHAKE. There are three types of tests
for these hash functions: functional tests, Monte Carlo tests and
Variable Output tests. Each has a specific value to be used in the
testType field. The testType field definitions are:
o "AFT" - Algorithm Functional Test. XXX
o "MCT" - Monte Carlo Test. XXX See Section 3.1 for implementation
details.
o "VOT" - Variable Output Test. XXX
3.1. Monte Carlo tests for SHA3 and SHAKE
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3.1.1. SHA3 Monte Carlo Test
3.1.2. SHAKE Monte Carlo Test
3.2. Test Coverage
4. Capabilities Registration
This section describes the constructs for advertising support of
block cipher algorithms to the ACVP server. ACVP REQURIES
cryptographic modules to register their capabilities in a
registration. This allows the cryptographic module to advertise
support for specific algorithms, notifying the ACVP server which
algorithms need test vectors generated for the validation process.
The SHA3 and SHAKE capabilities MUST be advertised as JSON objects
within the 'algorithms' value of the ACVP registration message. The
'algorithms' value MUST be an array, where each array element is an
individual JSON object defined in this section. The 'algorithms'
value MUST be part of the 'capability_exchange' element of the ACVP
JSON registration message. See the ACVP Protocol Specification
Section XXX for details on the registration message. Each SHA3 and
SHAKE algorithm capability advertised SHALL be a self-contained JSON
object.
Each algorithm capability advertised is a self-contained JSON object.
The following JSON values are used for hash algorithm capabilities:
4.1. SHA3 and SHAKE Algorithm Capabilities Registration
+-----------+--------------------------------------------+----------+
| JSON | Description | JSON |
| Value | | type |
+-----------+--------------------------------------------+----------+
| algorithm | The hash algorithm and mode to be | string |
| | validated. | |
| revision | The algorithm testing revision to use. | string |
| inBit | Implementation does accept bit-oriented | boolean |
| | messages | |
| inEmpty | Implementation does accept null (zero- | boolean |
| | length) messages | |
| outputLen | Output length for SHAKE | domain |
| outBit | SHAKE can output bit-oriented messages | boolean |
+-----------+--------------------------------------------+----------+
Table 1: SHA3 and SHAKE Algorithm Capabilities JSON Values
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The following grid outlines which properties are REQUIRED, as well as
all the possible values a server MAY support for SHA3 and SHAKE
algorithms:
+-----------+---------+---------+-------------------------+---------+
| algorithm | inBit | inEmpty | outputLen | outBit |
+-----------+---------+---------+-------------------------+---------+
| SHA3-224 | true, | true, | | |
| | false | false | | |
| SHA3-256 | true, | true, | | |
| | false | false | | |
| SHA3-384 | true, | true, | | |
| | false | false | | |
| SHA3-512 | true, | true, | | |
| | false | false | | |
| SHAKE-128 | true, | true, | {"Min": 16, "Max": | true, |
| | false | false | 65536, "Inc": any} | false |
| SHAKE-256 | true, | true, | {"Min": 16, "Max": | true, |
| | false | false | 65536, "Inc": any} | false |
+-----------+---------+---------+-------------------------+---------+
Table 2: SHA3 and SHAKE Capabilities Applicability Grid
5. Test Vectors
After receiving a valid registration of a cryptographic module, the
ACVP server SHALL provide test vectors in the form of a prompt to the
ACVP client, which then SHALL be processed and returned to the ACVP
server for validation. A typical ACVP validation session would
require the client to download and process multiple test vector sets.
Each test vector set SHALL represent an individual cryptographic
algorithm, such as SHA3-256, SHA3-512, SHAKE-128. This section
describes the JSON schema for a test vector set used with SHA3 and
SHAKE algorithms.
The test vector set JSON schema is a multi-level hierarchy that
contains meta-data for the entire vector set. The test vector set
SHALL be comprised of test groups which SHALL subsequently contain
individual test cases to be processed by the ACVP client. The
following table describes the REQUIRED JSON elements at the top level
of the hierarchy:
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+------------+----------------------------------------+-------------+
| JSON Value | Description | JSON type |
+------------+----------------------------------------+-------------+
| acvVersion | Protocol version identifier | string |
| vsId | Unique numeric identifier for the | integer |
| | vector set | |
| algorithm | The hash algorithm and mode used for | string |
| | the test vectors. See Section 2 for | |
| | possible values. | |
| revision | The algorithm testing revision to use. | string |
| testGroups | Array of test group JSON objects, | array of |
| | which are defined in Section 5.1 | testGroup |
| | | objects |
+------------+----------------------------------------+-------------+
Table 3: Test Vector Set JSON Object
5.1. Test Groups
Test vector sets MUST contain one or many test groups, each sharing
similar properties. For instance, all test vectors that use the same
key size would be grouped together. The testGroups element at the
top level of the test vector JSON object SHALL be the array of test
groups. The Test Group JSON object MUST contain meta-data that
applies to all test cases within the group. The following table
describes the JSON elements that MUST appear from the server in the
Test Group JSON object:
+----------+---------------------------------------+----------------+
| JSON | Description | JSON type |
| Value | | |
+----------+---------------------------------------+----------------+
| tgId | Numeric identifier for the test | integer |
| | group, unique across the entire | |
| | vector set. | |
| testType | Test category type. AFT, MCT or VOT | value |
| | as defined in Section 3 | |
| tests | Array of individual test case JSON | array of |
| | objects, which are defined in | testCase |
| | Section 5.2 | objects |
+----------+---------------------------------------+----------------+
Table 4: Test Group JSON Object
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5.2. Test Case JSON Schema
Each test group SHALL contain an array of one or more test cases.
Each test case is a JSON object that represents a single case to be
processed by the ACVP client. The following table describes the JSON
elements for each test case.
+--------+------------------------------------------------+---------+
| JSON | Description | JSON |
| Value | | type |
+--------+------------------------------------------------+---------+
| tcId | Numeric identifier for the test case, unique | integer |
| | across the entire vector set. | |
| len | Length of the message or seed | integer |
| outLen | Length of the digest | integer |
| msg | Value of the message or seed. Messages are | string |
| | represented as little-endian hex for all SHA3 | (hex) |
| | variations. | |
+--------+------------------------------------------------+---------+
Table 5: Test Case JSON Object
Note: All properties listed in the above table are REQUIRED except
for outLen which is only REQUIRED when the algorithm is SHAKE-128 or
SHAKE-256.
5.3. Test Vector Responses
After the ACVP client downloads and processes a vector set, it SHALL
send the response vectors back to the ACVP server within the alloted
timeframe. The following table describes the JSON object that
represents a vector set response.
+------------+------------------------------------------+-----------+
| JSON Value | Description | JSON type |
+------------+------------------------------------------+-----------+
| acvVersion | Protocol version identifier | string |
| vsId | Unique numeric identifier for the vector | integer |
| | set | |
| testGroups | Array of JSON objects that represent | array of |
| | each test vector result, which uses the | testGroup |
| | same JSON schema as defined in | objects |
| | Section 5.2 | |
+------------+------------------------------------------+-----------+
Table 6: Vector Set Response JSON Object
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The testGroup Response section is used to organize the ACVP client
response in a similar manner to how it receives vectors. Several
algorithms SHALL require the client to send back group level
properties in its response. This structure helps accommodate that.
+---------+------------------------------------+--------------------+
| JSON | Description | JSON type |
| Value | | |
+---------+------------------------------------+--------------------+
| tgId | The test group identifier | integer |
| tests | The tests associated to the group | array of testCase |
| | specified in tgId | objects |
+---------+------------------------------------+--------------------+
Table 7: Vector Set Group Response JSON Object
Each test case is a JSON object that represents a single test object
to be processed by the ACVP client. The following table describes
the JSON elements for each test case object.
+--------------+------------------------------------+---------------+
| JSON Value | Description | JSON type |
+--------------+------------------------------------+---------------+
| tcId | Numeric identifier for the test | integer |
| | case, unique across the entire | |
| | vector set. | |
| md | The IUT's digest response to a VOT | string (hex) |
| | or AFT | |
| resultsArray | Array of JSON objects that | array of |
| | represent each iteration of a | objects |
| | Monte Carlo Test. Each iteration | containing |
| | will contain the msg and md (and | the md (and |
| | outLen for SHAKE-128 and | potentially |
| | SHAKE-256) | outLen) |
+--------------+------------------------------------+---------------+
Table 8: Test Case Results JSON Object
Note: The tcId MUST be included in every test case object sent
between the client and the server.
5.4. Acknowledgements
TBD...
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5.5. IANA Considerations
This memo include requests to IANA to join draft XXX.
5.6. Security Considerations
Security considerations are addressed by the ACVP specification.
6. References
6.1. Normative References
[ACVP] authSurName, authInitials., "ACVP Specification", 2016.
[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>.
6.2. Informative References
[SHAVS] Lawrence E. Bassham III, LEB., "The Secure Hash Algorithm
Validation System (SHAVS)", 2014.
Appendix A. Example Secure Hash Capabilities JSON Object
The following is a example JSON object advertising support for SHA-
256.
{
"algorithm": "SHA3-256",
"revision": "1.0",
"inBit": true,
"inEmpty": true
}
The following is an example JSON object advertising support for
SHAKE-128.
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{
"algorithm": "SHAKE-128",
"revision": "1.0",
"inBit": true,
"inEmpty": true,
"outBit": true,
"outputLen": [
{
"min": 16,
"max": 1024
}]
}
Appendix B. Example Test Vectors JSON Object
The following is an example JSON object for secure hash test vectors
sent from the ACVP server to the crypto module. Notice that the
single bit message is represented as "01". This complies with the
little-endian nature of SHA3. All hex displayed is little-endian bit
order when associated with SHA3 or any of its variations.
[
{ "acvVersion": <acvp-version> },
{
"vsId": 1564,
"algorithm": "SHA3-512",
"revision": "1.0",
"testGroups": [
{
"tgId": 1,
"testType": "AFT",
"tests": [
{
"tcId": 1,
"len": 0,
"msg": "00"
},
{
"tcId": 2,
"len": 1,
"msg": "01"
}]
}]
}
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The following is another example JSON object for secure hash test
vectors sent from the ACVP server to the crypto module.
[
{ "acvVersion": <acvp-version> },
{
"vsId": 1564,
"algorithm": "SHA3-256",
"revision": "1.0",
"testGroups": [
{
"tgId": 1,
"testType": "AFT",
"tests": [
{
"tcId": 2170,
"len": 1304,
"msg": "7f65733c73c6d9b06838ca3fd3f0fed4c642c58bba59ed0c8b2ae618c4aa24611d3fc59f427574e0d6f38d1fb8ad8119855b7d5c5e2946a1ebb0685b9f258f903ed035e89dc07d04aabe5f10ab7f069ccb1e76a7d2c972fd34ba9dc44d68df51ebff0a400d0ebec3ea808a3a35ce5304a073fa959f9f39c96e2fce7855dddc4b2bb48ece19c8fdc6a02354c4dd0232fa0c424f4e4c1563ada1f943a23feb4d2706d707"
},
{
"tcId": 2171,
"len": 2096,
"msg": "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"
}]
}]
}
The following is an example JSON object for secure hash Monte Carlo
Test test vectors sent from the ACVP server to the crypto module.
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[
{ "acvVersion": <acvp-version> },
{
"vsId": 1564,
"algorithm": "SHA3-384",
"revision": "1.0",
"testGroups": [
{
"tgId": 2,
"testType": "MCT",
"tests": [
{
"tcId": 2175,
"len": 384,
"msg": "30850bd984b14ff5aff18993329268f45785a43cc5a837d45248c90d18e36c06cb3289cf4a661ace73b31a623c0b3ac7",
}]
}]
}
Appendix C. Example Test Results JSON Object
The following is a example JSON object for secure hash test results
sent from the crypto module to the ACVP server.
[
{ "acvVersion": <acvp-version> },
{
"vsId": 1564,
"testGroups": [
{
"tgId": 2,
"tests": [
{
"tcId": 2175,
"md": "CE2372967F76F2A6A41C3BF115BEBF6ECA3F63269579F6FC25861B64"
}
]
}]
}
The following is a example JSON object for secure hash Monte Carlo
Test results sent from the crypto module to the ACVP server. Reduced
to 2 iterations for brevity.
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[
{ "acvVersion": <acvp-version> },
{
"vsId": 1564,
"testGroups": [
{
"tgId": 2,
"tests": [
{
"tcId": 1254,
"resultsArray": [
{
"md": "CE2372967F76F2A6A41C3BF115BEBF6ECA3F63269579F6FC25861B64"
},
{
"md": "A811B806FE4811B9CC822D7149F7BAC76EF3FA6A40863A865440E244"
}
]
}
]
}]
}
Appendix D. Example Test Results JSON Object
The following is a example JSON object for the SHAKE Variable Output
Test sent from the ACVP server to the crypto module.
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[
{ "acvVersion": <acvp-version> },
{
"vsId": 1564,
"algorithm": "SHAKE-128",
"revision": "1.0",
"testGroups": [
{
"tgId": 1,
"testType": "VOT",
"tests": [
{
"tcId": 3456,
"len": 128,
"msg": "7a4c48eb710299e4ff2be3f446327a6f",
"outLen": 16
},
{
"tcId": 3457,
"len": 128,
"msg": "b16f331b3a0cf4507124b4358f9d15f5",
"outLen": 144
}]
}]
}
The following is a example JSON object for the SHAKE Variable Output
Test results sent from the crypto module to the ACVP server.
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[
{ "acvVersion": <acvp-version> },
{
"vsId": 1564,
"testGroups": [
{
"tgId": 1,
"tests": [
{
"tcId": 2170,
"outLen": 16
"md": "c604"
},
{
"tcId": 2171,
"outLen": 144
"md": "cfc6ed48bb2e61e0a48222d34a424ce9fdbe"
}
]
}]
}
Author's Address
Christopher Celi (editor)
National Institute of Standards and Technology
100 Bureau Drive
Gaithersburg, MD 20899
USA
Email: [email protected]
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