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<link href="#rfc.toc" rel="Contents">
<link href="#rfc.section.1" rel="Chapter" title="1 Introduction">
<link href="#rfc.section.1.1" rel="Chapter" title="1.1 Requirements Language">
<link href="#rfc.section.2" rel="Chapter" title="2 Supported DSA Algorithms">
<link href="#rfc.section.3" rel="Chapter" title="3 Test Types and Test Coverage">
<link href="#rfc.section.3.1" rel="Chapter" title="3.1 Test Coverage">
<link href="#rfc.section.3.1.1" rel="Chapter" title="3.1.1 Requirements Covered">
<link href="#rfc.section.3.1.2" rel="Chapter" title="3.1.2 Requirements Not Covered">
<link href="#rfc.section.4" rel="Chapter" title="4 Capabilities Registration">
<link href="#rfc.section.4.1" rel="Chapter" title="4.1 Required Prerequisite Algorithms for DSA Validations">
<link href="#rfc.section.4.2" rel="Chapter" title="4.2 DSA Algorithm Capabilities Registration">
<link href="#rfc.section.4.3" rel="Chapter" title="4.3 Supported DSA Modes Capabilities">
<link href="#rfc.section.4.3.1" rel="Chapter" title="4.3.1 The pqgGen Mode Capabilities">
<link href="#rfc.section.4.3.1.1" rel="Chapter" title="4.3.1.1 pqgGen Full Set of Capabilities">
<link href="#rfc.section.4.3.2" rel="Chapter" title="4.3.2 The pqgVer Mode Capabilities">
<link href="#rfc.section.4.3.2.1" rel="Chapter" title="4.3.2.1 pqgVer Full Set of Capabilities">
<link href="#rfc.section.4.3.3" rel="Chapter" title="4.3.3 The keyGen Mode Capabilities">
<link href="#rfc.section.4.3.3.1" rel="Chapter" title="4.3.3.1 keyGen Full Set of Capabilities">
<link href="#rfc.section.4.3.4" rel="Chapter" title="4.3.4 The sigGen Mode Capabilities">
<link href="#rfc.section.4.3.4.1" rel="Chapter" title="4.3.4.1 sigGen Full Set of Capabilities">
<link href="#rfc.section.4.3.5" rel="Chapter" title="4.3.5 The sigVer Mode Capabilities">
<link href="#rfc.section.4.3.5.1" rel="Chapter" title="4.3.5.1 sigVer Full Set of Capabilities">
<link href="#rfc.section.5" rel="Chapter" title="5 Test Vectors">
<link href="#rfc.section.5.1" rel="Chapter" title="5.1 Test Groups JSON Schema">
<link href="#rfc.section.5.2" rel="Chapter" title="5.2 Test Case JSON Schema">
<link href="#rfc.section.6" rel="Chapter" title="6 Test Vector Responses">
<link href="#rfc.section.7" rel="Chapter" title="7 Acknowledgements">
<link href="#rfc.section.8" rel="Chapter" title="8 IANA Considerations">
<link href="#rfc.section.9" rel="Chapter" title="9 Security Considerations">
<link href="#rfc.references" rel="Chapter" title="10 Normative References">
<link href="#rfc.appendix.A" rel="Chapter" title="A Example Capabilities JSON Object">
<link href="#rfc.appendix.B" rel="Chapter" title="B Example Vector Set Request/Responses JSON Object">
<link href="#rfc.appendix.B.1" rel="Chapter" title="B.1 Example Test DSA PQGGen JSON Object">
<link href="#rfc.appendix.B.2" rel="Chapter" title="B.2 Example Test DSA PQGVer JSON Object">
<link href="#rfc.appendix.B.3" rel="Chapter" title="B.3 Example Test DSA KeyGen JSON Object">
<link href="#rfc.appendix.B.4" rel="Chapter" title="B.4 Example Test DSA SigGen JSON Object">
<link href="#rfc.appendix.B.5" rel="Chapter" title="B.5 Example Test DSA SigVer JSON Object">
<link href="#rfc.authors" rel="Chapter">
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<link rel="schema.dct" href="http://purl.org/dc/terms/" />
<meta name="dct.creator" content="Fussell, B., Ed." />
<meta name="dct.identifier" content="urn:ietf:id:draft-ietf-acvp-subdsa-0.5" />
<meta name="dct.issued" scheme="ISO8601" content="2016-6" />
<meta name="dct.abstract" content="This document defines the JSON schema for using DSA algorithms with the ACVP specification." />
<meta name="description" content="This document defines the JSON schema for using DSA algorithms with the ACVP specification." />
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<body>
<table class="header">
<tbody>
<tr>
<td class="left">TBD</td>
<td class="right">B. Fussell, Ed.</td>
</tr>
<tr>
<td class="left">Internet-Draft</td>
<td class="right">Cisco Systems, Inc.</td>
</tr>
<tr>
<td class="left">Intended status: Informational</td>
<td class="right">June 2016</td>
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<tr>
<td class="left">Expires: December 3, 2016</td>
<td class="right"></td>
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<p class="title">ACVP DSA Algorithm JSON Specification<br />
<span class="filename">draft-ietf-acvp-subdsa-0.5</span></p>
<h1 id="rfc.abstract"><a href="#rfc.abstract">Abstract</a></h1>
<p>This document defines the JSON schema for using DSA algorithms with the ACVP specification.</p>
<h1 id="rfc.status"><a href="#rfc.status">Status of This Memo</a></h1>
<p>This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79.</p>
<p>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 http://datatracker.ietf.org/drafts/current/.</p>
<p>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."</p>
<p>This Internet-Draft will expire on December 3, 2016.</p>
<h1 id="rfc.copyrightnotice"><a href="#rfc.copyrightnotice">Copyright Notice</a></h1>
<p>Copyright (c) 2016 IETF Trust and the persons identified as the document authors. All rights reserved.</p>
<p>This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://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.</p>
<hr class="noprint" />
<h1 class="np" id="rfc.toc"><a href="#rfc.toc">Table of Contents</a></h1>
<ul class="toc">
<li>1. <a href="#rfc.section.1">Introduction</a>
</li>
<ul><li>1.1. <a href="#rfc.section.1.1">Requirements Language</a>
</li>
</ul><li>2. <a href="#rfc.section.2">Supported DSA Algorithms</a>
</li>
<li>3. <a href="#rfc.section.3">Test Types and Test Coverage</a>
</li>
<ul><li>3.1. <a href="#rfc.section.3.1">Test Coverage</a>
</li>
<ul><li>3.1.1. <a href="#rfc.section.3.1.1">Requirements Covered</a>
</li>
<li>3.1.2. <a href="#rfc.section.3.1.2">Requirements Not Covered</a>
</li>
</ul></ul><li>4. <a href="#rfc.section.4">Capabilities Registration</a>
</li>
<ul><li>4.1. <a href="#rfc.section.4.1">Required Prerequisite Algorithms for DSA Validations</a>
</li>
<li>4.2. <a href="#rfc.section.4.2">DSA Algorithm Capabilities Registration</a>
</li>
<li>4.3. <a href="#rfc.section.4.3">Supported DSA Modes Capabilities</a>
</li>
<ul><li>4.3.1. <a href="#rfc.section.4.3.1">The pqgGen Mode Capabilities</a>
</li>
<ul><li>4.3.1.1. <a href="#rfc.section.4.3.1.1">pqgGen Full Set of Capabilities</a>
</li>
</ul><li>4.3.2. <a href="#rfc.section.4.3.2">The pqgVer Mode Capabilities</a>
</li>
<ul><li>4.3.2.1. <a href="#rfc.section.4.3.2.1">pqgVer Full Set of Capabilities</a>
</li>
</ul><li>4.3.3. <a href="#rfc.section.4.3.3">The keyGen Mode Capabilities</a>
</li>
<ul><li>4.3.3.1. <a href="#rfc.section.4.3.3.1">keyGen Full Set of Capabilities</a>
</li>
</ul><li>4.3.4. <a href="#rfc.section.4.3.4">The sigGen Mode Capabilities</a>
</li>
<ul><li>4.3.4.1. <a href="#rfc.section.4.3.4.1">sigGen Full Set of Capabilities</a>
</li>
</ul><li>4.3.5. <a href="#rfc.section.4.3.5">The sigVer Mode Capabilities</a>
</li>
<ul><li>4.3.5.1. <a href="#rfc.section.4.3.5.1">sigVer Full Set of Capabilities</a>
</li>
</ul></ul></ul><li>5. <a href="#rfc.section.5">Test Vectors</a>
</li>
<ul><li>5.1. <a href="#rfc.section.5.1">Test Groups JSON Schema</a>
</li>
<li>5.2. <a href="#rfc.section.5.2">Test Case JSON Schema</a>
</li>
</ul><li>6. <a href="#rfc.section.6">Test Vector Responses</a>
</li>
<li>7. <a href="#rfc.section.7">Acknowledgements</a>
</li>
<li>8. <a href="#rfc.section.8">IANA Considerations</a>
</li>
<li>9. <a href="#rfc.section.9">Security Considerations</a>
</li>
<li>10. <a href="#rfc.references">Normative References</a>
</li>
<li>Appendix A. <a href="#rfc.appendix.A">Example Capabilities JSON Object</a>
</li>
<li>Appendix B. <a href="#rfc.appendix.B">Example Vector Set Request/Responses JSON Object</a>
</li>
<ul><li>B.1. <a href="#rfc.appendix.B.1">Example Test DSA PQGGen JSON Object</a>
</li>
<li>B.2. <a href="#rfc.appendix.B.2">Example Test DSA PQGVer JSON Object</a>
</li>
<li>B.3. <a href="#rfc.appendix.B.3">Example Test DSA KeyGen JSON Object</a>
</li>
<li>B.4. <a href="#rfc.appendix.B.4">Example Test DSA SigGen JSON Object</a>
</li>
<li>B.5. <a href="#rfc.appendix.B.5">Example Test DSA SigVer JSON Object</a>
</li>
</ul><li><a href="#rfc.authors">Author's Address</a>
</li>
</ul>
<h1 id="rfc.section.1">
<a href="#rfc.section.1">1.</a> Introduction</h1>
<p id="rfc.section.1.p.1">The Automated Crypto Validation Protocol (ACVP) defines a mechanism to automatically verify the cryptographic implementation of a software or hardware crypto module. The ACVP specification defines how a crypto module communicates with an ACVP server, including crypto capabilities negotiation, session management, authentication, vector processing and more. The ACVP specification does not define algorithm specific JSON constructs for performing the crypto validation. A series of ACVP sub-specifications define the constructs for testing individual crypto algorithms. Each sub-specification addresses a specific class of crypto algorithms. This sub-specification defines the JSON constructs for testing DSA algorithms using ACVP.</p>
<h1 id="rfc.section.1.1">
<a href="#rfc.section.1.1">1.1.</a> Requirements Language</h1>
<p id="rfc.section.1.1.p.1">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 <a href="#RFC2119" class="xref">RFC 2119</a>. </p>
<h1 id="rfc.section.2">
<a href="#rfc.section.2">2.</a> <a href="#supported_algs" id="supported_algs">Supported DSA Algorithms</a>
</h1>
<p id="rfc.section.2.p.1">The following DSA algorithms MAY be advertised by the ACVP compliant cryptographic module:</p>
<p></p>
<ul>
<li>DSA / keyGen</li>
<li>DSA / pqgGen</li>
<li>DSA / pqgVer</li>
<li>DSA / sigGen</li>
<li>DSA / sigVer</li>
</ul>
<p> </p>
<h1 id="rfc.section.3">
<a href="#rfc.section.3">3.</a> <a href="#test_types" id="test_types">Test Types and Test Coverage</a>
</h1>
<p id="rfc.section.3.p.1">The ACVP server performs a set of tests on the specified DSA algorithm in order to assess the correctness and robustness of the implementation. A typical ACVP validation session SHALL require multiple tests to be performed for every supported permutation of DSA capabilities. This section describes the design of the tests used to validate implementations of the DSA algorithms. </p>
<ul class="empty">
<li>DSA / keyGen "AFT" - Algorithm Functional Test. The IUT is REQUIRED for each test case provided, to generate a key pair based on a generated group level PQG. This information is then communicated to the ACVP server and validated. </li>
<li>DSA / pqgGen "GDT" - Generated Data Test. The IUT in this test mode is REQUIRED to generate PQ or G as a response to the ACVP provided test vector set. </li>
<li>DSA / pqgVer "GDT" - Generated Data Test. In this test mode, the ACVP server is REQUIRED to generate domain parameters for transmission to the IUT. The IUT is expected to evaluate the validity of the domain parameters. </li>
<li>DSA / sigGen "AFT" - Algorithm Functional Test. This testing mode expects the IUT to generate valid signatures based on the ACVP provided message. The IUT communicates the PQG, public key, and signature to the ACVP server, and the signature is then validated. </li>
<li>DSA / sigVer "AFT" - Algorithm Functional Test. The ACVP server generates a series of signatures to communicate to the IUT. The IUT is REQUIRED to determine the validity of the signature given the PQG, key, and message. </li>
</ul>
<p> </p>
<h1 id="rfc.section.3.1">
<a href="#rfc.section.3.1">3.1.</a> <a href="#test_coverage" id="test_coverage">Test Coverage</a>
</h1>
<p id="rfc.section.3.1.p.1">The tests described in this document have the intention of ensuring an implementation is conformant to <a href="#FIPS.186-4" class="xref">[FIPS.186-4]</a> and <a href="#SP.800-89" class="xref">[SP.800-89]</a>. </p>
<h1 id="rfc.section.3.1.1">
<a href="#rfc.section.3.1.1">3.1.1.</a> <a href="#requirements_covered" id="requirements_covered">Requirements Covered</a>
</h1>
<p></p>
<ul class="empty">
<li>FIPS.186-4 - 3 General Discussion. Domain parameter generation, key generation, signature generation, and signature validation are all within scope of ACVP server testing. </li>
<li>FIPS.186-4 - 4 The Digital Signature Algorithm (DSA). The ACVP server provides a means of the generation and validation of domain parameters. The ACVP server is SHALL support a variety of parameter sizes/hash function for creation and delivery to/from the IUT. The ACVP server SHALL allow for the testing of the validity of domain parameters. Key pair generation testing SHALL be provided by the ACVP server. Both Signature Generation and Validation testing mechanmisms SHALL be provided by the ACVP server. </li>
</ul>
<p> </p>
<h1 id="rfc.section.3.1.2">
<a href="#rfc.section.3.1.2">3.1.2.</a> <a href="#requirements_not_covered" id="requirements_not_covered">Requirements Not Covered</a>
</h1>
<p></p>
<ul class="empty">
<li>FIPS.186-4 - 3 General Discussion. Assurances of private key secrecy and ownership SHALL NOT be within scope of ACVP testing. </li>
<li>FIPS.186-4 - 4 The Digital Signature Algorithm (DSA). The IUT's selection of parameter sizes and hash functions SHALL NOT be within scope of ACVP server testing. Though the ACVP server SHALL support a variety of parameter sizes/hash functions, the IUT's selection of these is out of scope of testing. The ACVP server MAY provide testing for the validity of domain parameters, but testing SHALL NOT provide assurances the IUT has validated a set of domain parameters prior to their use. Domain parameter and key pair management SHALL NOT be within scope of ACVP testing. </li>
</ul>
<p> </p>
<h1 id="rfc.section.4">
<a href="#rfc.section.4">4.</a> <a href="#caps_reg" id="caps_reg">Capabilities Registration</a>
</h1>
<p id="rfc.section.4.p.1">ACVP requires crypto modules to register their capabilities. This allows the crypto module to advertise support for specific algorithms, notifying the ACVP server which algorithms need test vectors generated for the validation process. This section describes the constructs for advertising support of DSA algorithms to the ACVP server.</p>
<p id="rfc.section.4.p.2">The algorithm capabilities are advertised as JSON objects within the 'algorithms' value of the ACVP registration message. The 'algorithms' value is an array, where each array element is an individual JSON object defined in this section. The 'algorithms' value is part of the 'capability_exchange' element of the ACVP JSON registration message. See the ACVP specification for details on the registration message.</p>
<h1 id="rfc.section.4.1">
<a href="#rfc.section.4.1">4.1.</a> <a href="#prereq_algs" id="prereq_algs">Required Prerequisite Algorithms for DSA Validations</a>
</h1>
<p id="rfc.section.4.1.p.1">Each DSA implementation relies on other cryptographic primitives. For example, DSA uses an underlying SHA algorithm. Each of these underlying algorithm primitives must be validated, either separately or as part of the same submission. ACVP provides a mechanism for specifying the required prerequisites:</p>
<div id="rfc.table.1"></div>
<div id="rereqs_table"></div>
<table cellpadding="3" cellspacing="0" class="tt full center">
<caption>Required DSA Prerequisite Algorithms JSON Values</caption>
<thead><tr>
<th class="left">JSON Value</th>
<th class="left">Description</th>
<th class="left">JSON type</th>
<th class="left">Valid Values</th>
<th class="left">Optional</th>
</tr></thead>
<tbody>
<tr>
<td class="left">algorithm</td>
<td class="left">a prerequisite algorithm</td>
<td class="left">value</td>
<td class="left">DRBG, SHA, SHA_OPT2</td>
<td class="left">No</td>
</tr>
<tr>
<td class="left">valValue</td>
<td class="left">algorithm validation number</td>
<td class="left">value</td>
<td class="left">actual number or "same"</td>
<td class="left">No</td>
</tr>
<tr>
<td class="left">prereqAlgVal</td>
<td class="left">prerequistie algorithm validation</td>
<td class="left">object with algorithm and valValue properties</td>
<td class="left">see above</td>
<td class="left">No</td>
</tr>
<tr>
<td class="left">prereqVals</td>
<td class="left">prerequistie algorithm validations</td>
<td class="left">array of prereqAlgVal objects</td>
<td class="left">see above</td>
<td class="left">No</td>
</tr>
</tbody>
</table>
<h1 id="rfc.section.4.2">
<a href="#rfc.section.4.2">4.2.</a> <a href="#dsa_caps_reg" id="dsa_caps_reg">DSA Algorithm Capabilities Registration</a>
</h1>
<p id="rfc.section.4.2.p.1">Each algorithm capability advertised is a self-contained JSON object using the following values.</p>
<div id="rfc.table.2"></div>
<div id="caps_table"></div>
<table cellpadding="3" cellspacing="0" class="tt full center">
<caption>DSA Algorithm Capabilities JSON Values</caption>
<thead><tr>
<th class="left">JSON Value</th>
<th class="left">Description</th>
<th class="left">JSON type</th>
<th class="left">Valid Values</th>
<th class="left">Optional</th>
</tr></thead>
<tbody>
<tr>
<td class="left">algorithm</td>
<td class="left">The algorithm under test</td>
<td class="left">value</td>
<td class="left">"DSA"</td>
<td class="left">No</td>
</tr>
<tr>
<td class="left">mode</td>
<td class="left">The DSA mode to be validated</td>
<td class="left">value</td>
<td class="left">"pqgGen", "pqgVer", "keyGen", "sigGen", "sigVer"</td>
<td class="left">No</td>
</tr>
<tr>
<td class="left">prereqVals</td>
<td class="left">prerequistie algorithm validations</td>
<td class="left">array of prereqAlgVal objects</td>
<td class="left">See <a href="#prereq_algs" class="xref">Section 4.1</a> </td>
<td class="left">No</td>
</tr>
<tr>
<td class="left">capabilities</td>
<td class="left">array of JSON objects, each with fields pertaining to the global DSA mode indicated above and identified uniquely by the combination of the DSA "mode" and indicated properties</td>
<td class="left">Array of JSON objects</td>
<td class="left">See <a href="#supported_modes" class="xref">Section 4.3</a> </td>
<td class="left">No</td>
</tr>
</tbody>
</table>
<h1 id="rfc.section.4.3">
<a href="#rfc.section.4.3">4.3.</a> <a href="#supported_modes" id="supported_modes">Supported DSA Modes Capabilities</a>
</h1>
<p id="rfc.section.4.3.p.1">The DSA mode capabilities are advertised as JSON objects within the 'capabilities' value of the ACVP registration message - see <a href="#caps_table" class="xref">Table 2</a> . The 'capabilities' value is an array, where each array element is a JSON object corresponding to a particular DSA mode defined in this section. The 'capabilities' value is part of the 'capability_exchange' element of the ACVP JSON registration message. See the ACVP specification for details on the registration message. </p>
<p id="rfc.section.4.3.p.2">Each DSA mode's capabilities are advertised as JSON objects.</p>
<h1 id="rfc.section.4.3.1">
<a href="#rfc.section.4.3.1">4.3.1.</a> <a href="#mode_pqgGen" id="mode_pqgGen">The pqgGen Mode Capabilities</a>
</h1>
<p id="rfc.section.4.3.1.p.1">The DSA pqgGen mode capabilities are advertised as JSON objects, which are elements of the 'capabilities' array in the ACVP registration message. See the ACVP specification for details on the registration message.</p>
<p id="rfc.section.4.3.1.p.2">Each DSA pqgGen mode capability set is advertised as a self-contained JSON object.</p>
<h1 id="rfc.section.4.3.1.1">
<a href="#rfc.section.4.3.1.1">4.3.1.1.</a> <a href="#mode_pqgGenFullSet" id="mode_pqgGenFullSet">pqgGen Full Set of Capabilities</a>
</h1>
<p id="rfc.section.4.3.1.1.p.1">The complete list of DSA pqg generation capabilities may be advertised by the ACVP compliant crypto module:</p>
<div id="rfc.table.3"></div>
<div id="pqgGen_table"></div>
<table cellpadding="3" cellspacing="0" class="tt full center">
<caption>DSA pqgGen Capabilities JSON Values</caption>
<thead><tr>
<th class="left">JSON Value</th>
<th class="left">Description</th>
<th class="left">JSON type</th>
<th class="left">Valid Values</th>
<th class="left">Optional</th>
</tr></thead>
<tbody>
<tr>
<td class="left">l</td>
<td class="left">The length in bits of the field and the length in bits of prime p.</td>
<td class="left">value</td>
<td class="left">2048, or 3072</td>
<td class="left">No</td>
</tr>
<tr>
<td class="left">n</td>
<td class="left">The length in bits of q which is a prime factor of (p-1).</td>
<td class="left">value</td>
<td class="left">224, or 256 when L is 2048. Otherwise 256.</td>
<td class="left">No</td>
</tr>
<tr>
<td class="left">pqGen</td>
<td class="left">The methods supported to generate p and q.</td>
<td class="left">array</td>
<td class="left">Any non-empty subset of {"probable", "provable"}.</td>
<td class="left">No</td>
</tr>
<tr>
<td class="left">gGen</td>
<td class="left">The methods supported to generate g.</td>
<td class="left">array</td>
<td class="left">Any non-empty subset of {"unverifiable", "canonical"}.</td>
<td class="left">No</td>
</tr>
<tr>
<td class="left">hashAlg</td>
<td class="left">The hash functions supported when generating p, q and g.</td>
<td class="left">array</td>
<td class="left">Any non-empty subset of {"SHA2-224", "SHA2-256", "SHA2-384", "SHA2-512", "SHA2-512/224", "SHA2-512/256"}. Note that the digest size of the hash function MUST be equal to or greater than N.</td>
<td class="left">No</td>
</tr>
</tbody>
</table>
<h1 id="rfc.section.4.3.2">
<a href="#rfc.section.4.3.2">4.3.2.</a> <a href="#mode_pqgVer" id="mode_pqgVer">The pqgVer Mode Capabilities</a>
</h1>
<p id="rfc.section.4.3.2.p.1">The DSA pqgVer mode capabilities are advertised as JSON objects, which are elements of the 'capabilities' array in the ACVP registration message. See the ACVP specification for details on the registration message.</p>
<p id="rfc.section.4.3.2.p.2">Each DSA pqgVer mode capability set is advertised as a self-contained JSON object.</p>
<h1 id="rfc.section.4.3.2.1">
<a href="#rfc.section.4.3.2.1">4.3.2.1.</a> <a href="#mode_pqgVerFullSet" id="mode_pqgVerFullSet">pqgVer Full Set of Capabilities</a>
</h1>
<p id="rfc.section.4.3.2.1.p.1">The complete list of DSA pqg verification capabilities may be advertised by the ACVP compliant crypto module:</p>
<div id="rfc.table.4"></div>
<div id="pqgVer_table"></div>
<table cellpadding="3" cellspacing="0" class="tt full center">
<caption>DSA pqgVer Capabilities JSON Values</caption>
<thead><tr>
<th class="left">JSON Value</th>
<th class="left">Description</th>
<th class="left">JSON type</th>
<th class="left">Valid Values</th>
<th class="left">Optional</th>
</tr></thead>
<tbody>
<tr>
<td class="left">l</td>
<td class="left">The length in bits of the field and the length in bits of prime p.</td>
<td class="left">value</td>
<td class="left">1024, 2048, or 3072</td>
<td class="left">No</td>
</tr>
<tr>
<td class="left">n</td>
<td class="left">The length in bits of q which is a prime factor of (p-1).</td>
<td class="left">value</td>
<td class="left">160 when L is 1024. 224, or 256 when L is 2048. Otherwise 256.</td>
<td class="left">No</td>
</tr>
<tr>
<td class="left">pqGen</td>
<td class="left">The methods supported to generate p and q.</td>
<td class="left">array</td>
<td class="left">Any non-empty subset of {"probable", "provable"}.</td>
<td class="left">No</td>
</tr>
<tr>
<td class="left">gGen</td>
<td class="left">The methods supported to generate g.</td>
<td class="left">array</td>
<td class="left">Any non-empty subset of {"unverifiable", "canonical"}.</td>
<td class="left">No</td>
</tr>
<tr>
<td class="left">hashAlg</td>
<td class="left">The hash functions supported when generating p, q and g.</td>
<td class="left">array</td>
<td class="left">Any non-empty subset of {"SHA-1", "SHA2-224", "SHA2-256", "SHA2-384", "SHA2-512", "SHA2-512/224", "SHA2-512/256"}. Note that the digest size of the hash function MUST be equal to or greater than N.</td>
<td class="left">No</td>
</tr>
</tbody>
</table>
<h1 id="rfc.section.4.3.3">
<a href="#rfc.section.4.3.3">4.3.3.</a> <a href="#mode_keyGen" id="mode_keyGen">The keyGen Mode Capabilities</a>
</h1>
<p id="rfc.section.4.3.3.p.1">The DSA keyGen mode capabilities are advertised as JSON objects, which are elements of the 'capabilities' array in the ACVP registration message. See the ACVP specification for details on the registration message.</p>
<p id="rfc.section.4.3.3.p.2">Each DSA keyGen mode capability set is advertised as a self-contained JSON object.</p>
<h1 id="rfc.section.4.3.3.1">
<a href="#rfc.section.4.3.3.1">4.3.3.1.</a> <a href="#mode_keyGenFullSet" id="mode_keyGenFullSet">keyGen Full Set of Capabilities</a>
</h1>
<p id="rfc.section.4.3.3.1.p.1">The complete list of DSA key generation capabilities may be advertised by the ACVP compliant crypto module:</p>
<div id="rfc.table.5"></div>
<div id="keyGen_table"></div>
<table cellpadding="3" cellspacing="0" class="tt full center">
<caption>DSA keyGen Capabilities JSON Values</caption>
<thead><tr>
<th class="left">JSON Value</th>
<th class="left">Description</th>
<th class="left">JSON type</th>
<th class="left">Valid Values</th>
<th class="left">Optional</th>
</tr></thead>
<tbody>
<tr>
<td class="left">l</td>
<td class="left">The length in bits of the field and the length in bits of prime p.</td>
<td class="left">value</td>
<td class="left">2048, or 3072</td>
<td class="left">No</td>
</tr>
<tr>
<td class="left">n</td>
<td class="left">The length in bits of q which is a prime factor of (p-1).</td>
<td class="left">value</td>
<td class="left">224, or 256 when L is 2048. Otherwise 256.</td>
<td class="left">No</td>
</tr>
</tbody>
</table>
<h1 id="rfc.section.4.3.4">
<a href="#rfc.section.4.3.4">4.3.4.</a> <a href="#mode_sigGen" id="mode_sigGen">The sigGen Mode Capabilities</a>
</h1>
<p id="rfc.section.4.3.4.p.1">The DSA sigGen mode capabilities are advertised as JSON objects, which are elements of the 'capabilities' array in the ACVP registration message. See the ACVP specification for details on the registration message.</p>
<p id="rfc.section.4.3.4.p.2">Each DSA sigGen mode capability set is advertised as a self-contained JSON object.</p>
<h1 id="rfc.section.4.3.4.1">
<a href="#rfc.section.4.3.4.1">4.3.4.1.</a> <a href="#mode_sigGenFullSet" id="mode_sigGenFullSet">sigGen Full Set of Capabilities</a>
</h1>
<p id="rfc.section.4.3.4.1.p.1">The complete list of DSA signature generation capabilities may be advertised by the ACVP compliant crypto module:</p>
<div id="rfc.table.6"></div>
<div id="sigGen_table"></div>
<table cellpadding="3" cellspacing="0" class="tt full center">
<caption>DSA sigGen Capabilities JSON Values</caption>
<thead><tr>
<th class="left">JSON Value</th>
<th class="left">Description</th>
<th class="left">JSON type</th>
<th class="left">Valid Values</th>
<th class="left">Optional</th>
</tr></thead>
<tbody>
<tr>
<td class="left">l</td>
<td class="left">The length in bits of the field and the length in bits of prime p.</td>
<td class="left">value</td>
<td class="left">2048, or 3072</td>
<td class="left">No</td>
</tr>
<tr>
<td class="left">n</td>
<td class="left">The length in bits of q which is a prime factor of (p-1).</td>
<td class="left">value</td>
<td class="left">224, or 256 when L is 2048. Otherwise 256.</td>
<td class="left">No</td>
</tr>
<tr>
<td class="left">hashAlg</td>
<td class="left">The hash functions supported when signing a message.</td>
<td class="left">array</td>
<td class="left">Any non-empty subset of {"SHA2-224", "SHA2-256", "SHA2-384", "SHA2-512", "SHA2-512/224", "SHA2-512/256"}.</td>
<td class="left">No</td>
</tr>
</tbody>
</table>
<h1 id="rfc.section.4.3.5">
<a href="#rfc.section.4.3.5">4.3.5.</a> <a href="#mode_sigVer" id="mode_sigVer">The sigVer Mode Capabilities</a>
</h1>
<p id="rfc.section.4.3.5.p.1">The DSA sigVer mode capabilities are advertised as JSON objects, which are elements of the 'capabilities' array in the ACVP registration message. See the ACVP specification for details on the registration message.</p>
<p id="rfc.section.4.3.5.p.2">Each DSA sigVer mode capability set is advertised as a self-contained JSON object.</p>
<h1 id="rfc.section.4.3.5.1">
<a href="#rfc.section.4.3.5.1">4.3.5.1.</a> <a href="#mode_sigVerFullSet" id="mode_sigVerFullSet">sigVer Full Set of Capabilities</a>
</h1>
<p id="rfc.section.4.3.5.1.p.1">The complete list of DSA signature verification capabilities may be advertised by the ACVP compliant crypto module:</p>
<div id="rfc.table.7"></div>
<div id="sigVer_table"></div>
<table cellpadding="3" cellspacing="0" class="tt full center">
<caption>DSA sigVer Capabilities JSON Values</caption>
<thead><tr>
<th class="left">JSON Value</th>
<th class="left">Description</th>
<th class="left">JSON type</th>
<th class="left">Valid Values</th>
<th class="left">Optional</th>
</tr></thead>
<tbody>
<tr>
<td class="left">l</td>
<td class="left">The length in bits of the field and the length in bits of prime p.</td>
<td class="left">value</td>
<td class="left">1024, 2048, or 3072</td>
<td class="left">No</td>
</tr>
<tr>
<td class="left">n</td>
<td class="left">The length in bits of q which is a prime factor of (p-1).</td>
<td class="left">value</td>
<td class="left">160 when L is 1024. 224, or 256 when L is 2048. Otherwise 256.</td>
<td class="left">No</td>
</tr>
<tr>
<td class="left">hashAlg</td>
<td class="left">The hash functions supported when verifying a message.</td>
<td class="left">array</td>
<td class="left">Any non-empty subset of {"SHA-1", "SHA2-224", "SHA2-256", "SHA2-384", "SHA2-512", "SHA2-512/224", "SHA2-512/256"}.</td>
<td class="left">No</td>
</tr>
</tbody>
</table>
<h1 id="rfc.section.5">
<a href="#rfc.section.5">5.</a> <a href="#test_vectors" id="test_vectors">Test Vectors</a>
</h1>
<p id="rfc.section.5.p.1">The ACVP server provides test vectors to the ACVP client, which are then processed and returned to the ACVP server for validation. A typical ACVP validation session would require multiple test vector sets to be downloaded and processed by the ACVP client. Each test vector set represents an individual DSA function. This section describes the JSON schema for a test vector set used with DSA algorithms.</p>
<p id="rfc.section.5.p.2">The test vector set JSON schema is a multi-level hierarchy that contains meta data for the entire vector set as well as individual test vectors to be processed by the ACVP client.The following table describes the JSON elements at the top level of the hierarchy. </p>
<div id="rfc.table.8"></div>
<div id="vs_top_table"></div>
<table cellpadding="3" cellspacing="0" class="tt full center">
<caption>Vector Set JSON Object</caption>
<thead><tr>
<th class="left">JSON Value</th>
<th class="left">Description</th>
<th class="left">JSON type</th>
</tr></thead>
<tbody>
<tr>
<td class="left">acvVersion</td>
<td class="left">Protocol version identifier</td>
<td class="left">value</td>
</tr>
<tr>
<td class="left">vsId</td>
<td class="left">Unique numeric identifier for the vector set</td>
<td class="left">value</td>
</tr>
<tr>
<td class="left">algorithm</td>
<td class="left">DSA</td>
<td class="left">value</td>
</tr>
<tr>
<td class="left">mode</td>
<td class="left">The DSA mode used for the test vectors.</td>
<td class="left">value</td>
</tr>
<tr>
<td class="left">testGroups</td>
<td class="left">Array of test group JSON objects, which are defined in <a href="#tgjs" class="xref">Section 5.1</a> </td>
<td class="left">array</td>
</tr>
</tbody>
</table>
<h1 id="rfc.section.5.1">
<a href="#rfc.section.5.1">5.1.</a> <a href="#tgjs" id="tgjs">Test Groups JSON Schema</a>
</h1>
<p id="rfc.section.5.1.p.1">The testGroups element at the top level in the test vector JSON object is an array of test groups. Test vectors are grouped into similar test cases to reduce the amount of data transmitted in the vector set. For instance, all test vectors that use the same key size would be grouped together. The Test Group JSON object contains meta data that applies to all test vectors within the group. The following table describes the secure hash JSON elements of the Test Group JSON object.</p>
<p id="rfc.section.5.1.p.2">The test group for DSA is as follows:</p>