Add the Concat (SP 800-56A, Section 5.8.1) algorithm as a KDF
authorRyan Sleevi <sleevi@google.com>
Mon, 03 Dec 2012 18:13:06 -0800
changeset 15 19613bbac7f8
parent 14 642f403450d7
child 16 b25fc49200d6
Add the Concat (SP 800-56A, Section 5.8.1) algorithm as a KDF
spec/Overview-WebCryptoAPI.xml
spec/Overview.html
--- a/spec/Overview-WebCryptoAPI.xml	Mon Dec 03 17:54:56 2012 -0800
+++ b/spec/Overview-WebCryptoAPI.xml	Mon Dec 03 18:13:06 2012 -0800
@@ -2939,6 +2939,69 @@
             </ul>
           </div>
         </div>
+        <div id="concatkdf" class="section">
+          <h3>Concat KDF</h3>
+          <div id="concatkdf-description" class="section">
+            <h4>Description</h4>
+            <p>
+              The <code>"CONCAT"</code> algorithm identifier is used to perform key derivation
+              using the key derivation algorithm defined in Section 5.8.1 of NIST SP 800-56A
+              [<a href="#SP800-56A">SP800-56A</a>].
+            </p>
+          </div>
+          <div id="concatkdf-registration" class="section">
+            <h4>Registration</h4>
+            <p>
+              The <a href="#recognized-algorithm-name">recognized algorithm name</a> for
+              this algorithm is <code>"CONCAT"</code>.
+            </p>
+            <table>
+              <thead>
+                <tr>
+                  <th><a href="#supported-operations">Operation</a></th>
+                  <th><a href="#algorithm-specific-params">Parameters</a></th>
+                  <th><a href="#algorithm-result">Result</a></th>
+                </tr>
+              </thead>
+              <tbody>
+                <tr>
+                  <td>deriveKey</td>
+                  <td><a href="#dfn-ConcatParams">ConcatParams</a></td>
+                  <td><a href="#dfn-Key">Key</a>?</td>
+                </tr>
+              </tbody>
+            </table>
+          </div>
+          <div id="concat-params" class="section">
+            <h4>ConcatParams dictionary</h4>
+            <x:codeblock language="idl">
+dictionary <dfn id="dfn-ConcatParams">ConcatParams</dfn> : <a href="#dfn-AlgorithmParameters">AlgorithmParameters</a> {
+  <span class="comment">// The digest method to use to derive the keying material.</span>
+  AlgorithmIdentifier hash;
+
+  <span class="comment">// A bit string corresponding to the AlgorithmId field of the OtherInfo parameter.</span>
+  <span class="comment">// The AlgorithmId indicates how the derived keying material will be parsed and for which</span>
+  <span class="comment">// algorithm(s) the derived secret keying material will be used.</span>
+  ArrayBufferView algorithmId;
+
+  <span class="comment">// A bit string that corresponds to the PartyUInfo field of the OtherInfo parameter.</span>
+  ArrayBufferView partyUInfo;
+  <span class="comment">// A bit string that corresponds to the PartyVInfo field of the OtherInfo parameter.</span>
+  ArrayBufferView partyVInfo;
+  <span class="comment">// An optional bit string that corresponds to the SuppPubInfo field of the OtherInfo parameter.</span>
+  ArrayBufferView? publicInfo;
+  <span class="comment">// An optional bit string that corresponds to the SuppPrivInfo field of the OtherInfo parameter.</span>
+  ArrayBufferView? privateInfo;
+};
+            </x:codeblock>
+          </div>
+          <div id="concat-operations" class="section">
+            <h4>Operations</h4>
+            <ul>
+              <li>Derive Key</li>
+            </ul>
+          </div>
+        </div>
         <div id="pbkdf2" class="section">
           <h3>PBKDF2</h3>
           <div id="pbkdf2-description" class="section">
--- a/spec/Overview.html	Mon Dec 03 17:54:56 2012 -0800
+++ b/spec/Overview.html	Mon Dec 03 18:13:06 2012 -0800
@@ -145,7 +145,7 @@
 
     <div id="toc">
       <h2>Table of Contents</h2>
-      <div class="toc"><ul><li><a href="#introduction">1. Introduction</a></li><li><a href="#use-cases">2. Use Cases</a><ul><li><a href="#multifactor-authentication">2.1. Multi-factor Authentication</a></li><li><a href="#protected-document">2.2. Protected Document Exchange</a></li><li><a href="#cloud-storage">2.3. Cloud Storage</a></li><li><a href="#document-signing">2.4. Document Signing</a></li><li><a href="#data-integrity-protection">2.5. Data Integrity Protection</a></li><li><a href="#secure-messaging">2.6. Secure Messaging</a></li><li><a href="#jose">2.7. Javascript Object Signing and Encryption (JOSE)</a></li></ul></li><li><a href="#conformance">3. Conformance</a></li><li><a href="#scope">4. Scope</a><ul><li><a href="#scope-abstraction">4.1. Level of abstraction</a></li><li><a href="#scope-algorithms">4.2. Cryptographic algorithms</a></li><li><a href="#scope-operations">4.3. Operations</a></li><li><a href="#scope-out-of-scope">4.4. Out of scope</a></li></ul></li><li><a href="#security">5. Security considerations</a><ul><li><a href="#security-implementers">5.1. Security considerations for implementers</a></li><li><a href="#security-developers">5.2. Security considerations for developers</a></li></ul></li><li><a href="#privacy">6. Privacy considerations</a></li><li><a href="#dependencies">7. Dependencies</a></li><li><a href="#terminology">8. Terminology</a></li><li><a href="#RandomSource-interface">9. RandomSource interface</a><ul><li><a href="#RandomSource-description">9.1. Description</a></li><li><a href="#RandomSource-interface-methods">9.2. Methods and Parameters</a><ul><li><a href="#RandomSource-method-getRandomValues">9.2.1. The getRandomValues method</a></li></ul></li></ul></li><li><a href="#algorithm-dictionary">10. Algorithm dictionary</a><ul><li><a href="#algorithm-dictionary-members">10.1. Algorithm Dictionary Members</a></li></ul></li><li><a href="#key-interface">11. Key interface</a><ul><li><a href="#key-interface-description">11.1. Description</a></li><li><a href="#key-interface-members">11.2. Key interface members</a></li><li><a href="#key-interface-clone">11.3. Structured clone algorithm</a></li></ul></li><li><a href="#cryptooperation-interface">12. CryptoOperation interface</a><ul><li><a href="#CryptoOperation-states">12.1. CryptoOperation states</a></li><li><a href="#cryptooperation-task-source">12.2. The CryptoOperation Task Source</a></li><li><a href="#cryptooperation-events">12.3. Event Handler Attributes</a></li><li><a href="#CryptoOperation-attributes">12.4. Attributes</a></li><li><a href="#CryptoOperation-methods">12.5. Methods and Parameters</a><ul><li><a href="#CryptoOperation-method-init">12.5.1. The init method</a></li><li><a href="#CryptoOperation-method-processData">12.5.2. The processData(ArrayBufferView buffer) method</a></li><li><a href="#CryptoOperation-method-complete">12.5.3. The complete() method</a></li><li><a href="#CryptoOperation-method-abort">12.5.4. The abort() method</a></li></ul></li></ul></li><li><a href="#KeyOperation-interface">13. KeyOperation interface</a></li><li><a href="#KeyGenerator-interface">14. KeyGenerator interface</a></li><li><a href="#KeyDeriver-interface">15. KeyDeriver interface</a></li><li><a href="#KeyImporter-interface">16. KeyImporter interface</a></li><li><a href="#KeyExporter-interface">17. KeyExporter interface</a></li><li><a href="#crypto-interface">18. Crypto interface</a><ul><li><a href="#crypto-interface-methods">18.1. Methods and Parameters</a><ul><li><a href="#Crypto-method-createEncrypter">18.1.1. The createEncrypter method</a></li><li><a href="#Crypto-method-createDecrypter">18.1.2. The createDecrypter method</a></li><li><a href="#Crypto-method-createSigner">18.1.3. The createSigner method</a></li><li><a href="#Crypto-method-createVerifier">18.1.4. The createVerifier method</a></li><li><a href="#Crypto-method-createDigester">18.1.5. The createDigester method</a></li><li><a href="#Crypto-method-createKeyGenerator">18.1.6. The createKeyGenerator method</a></li><li><a href="#Crypto-method-createKeyDeriver">18.1.7. The createKeyDeriver method</a></li><li><a href="#Crypto-method-createKeyImporter">18.1.8. The createKeyImporter method</a></li><li><a href="#Crypto-method-createKeyExporter">18.1.9. The createKeyExporter method</a></li></ul></li></ul></li><li><a href="#WorkerCrypto-interface">19. WorkerCrypto interface</a><ul><li><a href="#WorkerCrypto-description">19.1. Description</a></li></ul></li><li><a href="#big-integer">20. BigInteger</a></li><li><a href="#keypair">21. KeyPair</a></li><li><a href="#key-discovery">22. Key Discovery</a></li><li><a href="#algorithms">23. Algorithms</a><ul><li><a href="#recommended-algorithms">23.1. Recommended algorithms</a></li><li><a href="#defining-an-algorithm">23.2. Defining an algorithm</a><ul><li><a href="#recognized-algorithm-name">23.2.1. Recognized algorithm name</a></li><li><a href="#supported-operations">23.2.2. Supported operations</a></li><li><a href="#algorithm-specific-params">23.2.3. Algorithm-specific parameters</a></li><li><a href="#algorithm-result">23.2.4. Algorithm results</a></li><li><a href="#algorithm-alias">23.2.5. Algorithm aliases</a></li></ul></li><li><a href="#rsaes-pkcs1">23.3. RSAES-PKCS1-v1_5</a><ul><li><a href="#rsaes-pkcs1-description">23.3.1. Description</a></li><li><a href="#rsaes-pkcs1-registration">23.3.2. Registration</a></li><li><a href="#RsaKeyGenParams-dictionary">23.3.3. RsaKeyGenParams dictionary</a></li><li><a href="#rsaes-pkcs1-operations">23.3.4. Operations</a></li></ul></li><li><a href="#rsassa-pkcs1">23.4. RSASSA-PKCS1-v1_5</a><ul><li><a href="#rsassa-pkcs1-description">23.4.1. Description</a></li><li><a href="#rsassa-pkcs1-registration">23.4.2. Registration</a></li><li><a href="#RsaSsaParams-dictionary">23.4.3. RsaSsaParams dictionary</a></li><li><a href="#rsassa-pkcs1-operations">23.4.4. Operations</a></li></ul></li><li><a href="#rsa-pss">23.5. RSA-PSS</a><ul><li><a href="#rsa-pss-description">23.5.1. Description</a></li><li><a href="#rsa-pss-registration">23.5.2. Registration</a></li><li><a href="#rsa-pss-params">23.5.3. RsaPssParams dictionary</a></li><li><a href="#rsa-pss-operations">23.5.4. Operations</a></li></ul></li><li><a href="#rsa-oaep">23.6. RSA-OAEP</a><ul><li><a href="#rsa-oaep-description">23.6.1. Description</a></li><li><a href="#rsa-oaep-registration">23.6.2. Registration</a></li><li><a href="#rsa-oaep-params">23.6.3. RsaOaepParams dictionary</a></li><li><a href="#rsa-oaep-operations">23.6.4. Operations</a></li></ul></li><li><a href="#ecdsa">23.7. ECDSA</a><ul><li><a href="#ecdsa-description">23.7.1. Description</a></li><li><a href="#ecdsa-registration">23.7.2. Registration</a></li><li><a href="#EcdsaParams-dictionary">23.7.3. EcdsaParams dictionary</a></li><li><a href="#EcKeyGenParams-dictionary">23.7.4. EcKeyGenParams dictionary</a></li><li><a href="#ecdsa-operations">23.7.5. Operations</a></li></ul></li><li><a href="#ecdh">23.8. ECDH</a><ul><li><a href="#ecdh-description">23.8.1. Description</a></li><li><a href="#ecdh-registration">23.8.2. Registration</a></li><li><a href="#dh-EcdhKeyDeriveParams">23.8.3. EcdhKeyDeriveParams dictionary</a></li><li><a href="#ecdh-operations">23.8.4. Operations</a></li></ul></li><li><a href="#aes-ctr">23.9. AES-CTR</a><ul><li><a href="#aes-ctr-description">23.9.1. Description</a></li><li><a href="#aes-ctr-registration">23.9.2. Registration</a></li><li><a href="#aes-ctr-params">23.9.3. AesCtrParams dictionary</a></li><li><a href="#aes-keygen-params">23.9.4. AesKeyGenParams dictionary</a></li><li><a href="#aes-ctr-operations">23.9.5. Operations</a></li></ul></li><li><a href="#aes-cbc">23.10. AES-CBC</a><ul><li><a href="#aes-cbc-description">23.10.1. Description</a></li><li><a href="#aes-cbc-registration">23.10.2. Registration</a></li><li><a href="#aes-cbc-params">23.10.3. AesCbcParams dictionary</a></li><li><a href="#aes-cbc-operations">23.10.4. Operations</a></li></ul></li><li><a href="#aes-gcm">23.11. AES-GCM</a><ul><li><a href="#aes-gcm-description">23.11.1. Description</a></li><li><a href="#aes-gcm-registration">23.11.2. Registration</a></li><li><a href="#aes-gcm-params">23.11.3. AesGcmParams dictionary</a></li><li><a href="#aes-gcm-operations">23.11.4. Operations</a></li></ul></li><li><a href="#hmac">23.12. HMAC</a><ul><li><a href="#hmac-description">23.12.1. Description</a></li><li><a href="#hmac-registration">23.12.2. Registration</a></li><li><a href="#hmac-params">23.12.3. HmacParams dictionary</a></li><li><a href="#hmac-operations">23.12.4. Operations</a></li></ul></li><li><a href="#dh">23.13. Diffie-Hellman</a><ul><li><a href="#dh-description">23.13.1. Description</a></li><li><a href="#dh-registration">23.13.2. Registration</a></li><li><a href="#dh-DhKeyGenParams">23.13.3. DhKeyGenParams dictionary</a></li><li><a href="#dh-DhKeyDeriveParams">23.13.4. DhKeyDeriveParams dictionary</a></li><li><a href="#dh-operations">23.13.5. Operations</a></li></ul></li><li><a href="#sha">23.14. SHA</a><ul><li><a href="#sha-description">23.14.1. Description</a></li><li><a href="#sha-registration">23.14.2. Registration</a></li><li><a href="#sha-operations">23.14.3. Operations</a></li></ul></li><li><a href="#pbkdf2">23.15. PBKDF2</a><ul><li><a href="#pbkdf2-description">23.15.1. Description</a></li><li><a href="#pbkdf2-registration">23.15.2. Registration</a></li><li><a href="#pbkdf2-params">23.15.3. Pbkdf2Params dictionary</a></li><li><a href="#pbkdf2-operations">23.15.4. Operations</a></li></ul></li></ul></li><li><a href="#algorithm-normalizing-rules">24. Algorithm normalizing rules</a></li><li><a href="#examples-section">25. JavaScript Example Code</a><ul><li><a href="#examples-signing">25.1. Generate a signing key pair, sign some data</a></li><li><a href="#examples-symmetric-encryption">25.2. Symmetric Encryption</a></li></ul></li><li><a href="#acknowledgements-section">26. Acknowledgements</a></li><li><a href="#references">27. References</a><ul><li><a href="#normative-references">27.1. Normative References</a></li><li><a href="#informative-references">27.2. Informative References</a></li></ul></li></ul></div>
+      <div class="toc"><ul><li><a href="#introduction">1. Introduction</a></li><li><a href="#use-cases">2. Use Cases</a><ul><li><a href="#multifactor-authentication">2.1. Multi-factor Authentication</a></li><li><a href="#protected-document">2.2. Protected Document Exchange</a></li><li><a href="#cloud-storage">2.3. Cloud Storage</a></li><li><a href="#document-signing">2.4. Document Signing</a></li><li><a href="#data-integrity-protection">2.5. Data Integrity Protection</a></li><li><a href="#secure-messaging">2.6. Secure Messaging</a></li><li><a href="#jose">2.7. Javascript Object Signing and Encryption (JOSE)</a></li></ul></li><li><a href="#conformance">3. Conformance</a></li><li><a href="#scope">4. Scope</a><ul><li><a href="#scope-abstraction">4.1. Level of abstraction</a></li><li><a href="#scope-algorithms">4.2. Cryptographic algorithms</a></li><li><a href="#scope-operations">4.3. Operations</a></li><li><a href="#scope-out-of-scope">4.4. Out of scope</a></li></ul></li><li><a href="#security">5. Security considerations</a><ul><li><a href="#security-implementers">5.1. Security considerations for implementers</a></li><li><a href="#security-developers">5.2. Security considerations for developers</a></li></ul></li><li><a href="#privacy">6. Privacy considerations</a></li><li><a href="#dependencies">7. Dependencies</a></li><li><a href="#terminology">8. Terminology</a></li><li><a href="#RandomSource-interface">9. RandomSource interface</a><ul><li><a href="#RandomSource-description">9.1. Description</a></li><li><a href="#RandomSource-interface-methods">9.2. Methods and Parameters</a><ul><li><a href="#RandomSource-method-getRandomValues">9.2.1. The getRandomValues method</a></li></ul></li></ul></li><li><a href="#algorithm-dictionary">10. Algorithm dictionary</a><ul><li><a href="#algorithm-dictionary-members">10.1. Algorithm Dictionary Members</a></li></ul></li><li><a href="#key-interface">11. Key interface</a><ul><li><a href="#key-interface-description">11.1. Description</a></li><li><a href="#key-interface-members">11.2. Key interface members</a></li><li><a href="#key-interface-clone">11.3. Structured clone algorithm</a></li></ul></li><li><a href="#cryptooperation-interface">12. CryptoOperation interface</a><ul><li><a href="#CryptoOperation-states">12.1. CryptoOperation states</a></li><li><a href="#cryptooperation-task-source">12.2. The CryptoOperation Task Source</a></li><li><a href="#cryptooperation-events">12.3. Event Handler Attributes</a></li><li><a href="#CryptoOperation-attributes">12.4. Attributes</a></li><li><a href="#CryptoOperation-methods">12.5. Methods and Parameters</a><ul><li><a href="#CryptoOperation-method-init">12.5.1. The init method</a></li><li><a href="#CryptoOperation-method-processData">12.5.2. The processData(ArrayBufferView buffer) method</a></li><li><a href="#CryptoOperation-method-complete">12.5.3. The complete() method</a></li><li><a href="#CryptoOperation-method-abort">12.5.4. The abort() method</a></li></ul></li></ul></li><li><a href="#KeyOperation-interface">13. KeyOperation interface</a></li><li><a href="#KeyGenerator-interface">14. KeyGenerator interface</a></li><li><a href="#KeyDeriver-interface">15. KeyDeriver interface</a></li><li><a href="#KeyImporter-interface">16. KeyImporter interface</a></li><li><a href="#KeyExporter-interface">17. KeyExporter interface</a></li><li><a href="#crypto-interface">18. Crypto interface</a><ul><li><a href="#crypto-interface-methods">18.1. Methods and Parameters</a><ul><li><a href="#Crypto-method-createEncrypter">18.1.1. The createEncrypter method</a></li><li><a href="#Crypto-method-createDecrypter">18.1.2. The createDecrypter method</a></li><li><a href="#Crypto-method-createSigner">18.1.3. The createSigner method</a></li><li><a href="#Crypto-method-createVerifier">18.1.4. The createVerifier method</a></li><li><a href="#Crypto-method-createDigester">18.1.5. The createDigester method</a></li><li><a href="#Crypto-method-createKeyGenerator">18.1.6. The createKeyGenerator method</a></li><li><a href="#Crypto-method-createKeyDeriver">18.1.7. The createKeyDeriver method</a></li><li><a href="#Crypto-method-createKeyImporter">18.1.8. The createKeyImporter method</a></li><li><a href="#Crypto-method-createKeyExporter">18.1.9. The createKeyExporter method</a></li></ul></li></ul></li><li><a href="#WorkerCrypto-interface">19. WorkerCrypto interface</a><ul><li><a href="#WorkerCrypto-description">19.1. Description</a></li></ul></li><li><a href="#big-integer">20. BigInteger</a></li><li><a href="#keypair">21. KeyPair</a></li><li><a href="#key-discovery">22. Key Discovery</a></li><li><a href="#algorithms">23. Algorithms</a><ul><li><a href="#recommended-algorithms">23.1. Recommended algorithms</a></li><li><a href="#defining-an-algorithm">23.2. Defining an algorithm</a><ul><li><a href="#recognized-algorithm-name">23.2.1. Recognized algorithm name</a></li><li><a href="#supported-operations">23.2.2. Supported operations</a></li><li><a href="#algorithm-specific-params">23.2.3. Algorithm-specific parameters</a></li><li><a href="#algorithm-result">23.2.4. Algorithm results</a></li><li><a href="#algorithm-alias">23.2.5. Algorithm aliases</a></li></ul></li><li><a href="#rsaes-pkcs1">23.3. RSAES-PKCS1-v1_5</a><ul><li><a href="#rsaes-pkcs1-description">23.3.1. Description</a></li><li><a href="#rsaes-pkcs1-registration">23.3.2. Registration</a></li><li><a href="#RsaKeyGenParams-dictionary">23.3.3. RsaKeyGenParams dictionary</a></li><li><a href="#rsaes-pkcs1-operations">23.3.4. Operations</a></li></ul></li><li><a href="#rsassa-pkcs1">23.4. RSASSA-PKCS1-v1_5</a><ul><li><a href="#rsassa-pkcs1-description">23.4.1. Description</a></li><li><a href="#rsassa-pkcs1-registration">23.4.2. Registration</a></li><li><a href="#RsaSsaParams-dictionary">23.4.3. RsaSsaParams dictionary</a></li><li><a href="#rsassa-pkcs1-operations">23.4.4. Operations</a></li></ul></li><li><a href="#rsa-pss">23.5. RSA-PSS</a><ul><li><a href="#rsa-pss-description">23.5.1. Description</a></li><li><a href="#rsa-pss-registration">23.5.2. Registration</a></li><li><a href="#rsa-pss-params">23.5.3. RsaPssParams dictionary</a></li><li><a href="#rsa-pss-operations">23.5.4. Operations</a></li></ul></li><li><a href="#rsa-oaep">23.6. RSA-OAEP</a><ul><li><a href="#rsa-oaep-description">23.6.1. Description</a></li><li><a href="#rsa-oaep-registration">23.6.2. Registration</a></li><li><a href="#rsa-oaep-params">23.6.3. RsaOaepParams dictionary</a></li><li><a href="#rsa-oaep-operations">23.6.4. Operations</a></li></ul></li><li><a href="#ecdsa">23.7. ECDSA</a><ul><li><a href="#ecdsa-description">23.7.1. Description</a></li><li><a href="#ecdsa-registration">23.7.2. Registration</a></li><li><a href="#EcdsaParams-dictionary">23.7.3. EcdsaParams dictionary</a></li><li><a href="#EcKeyGenParams-dictionary">23.7.4. EcKeyGenParams dictionary</a></li><li><a href="#ecdsa-operations">23.7.5. Operations</a></li></ul></li><li><a href="#ecdh">23.8. ECDH</a><ul><li><a href="#ecdh-description">23.8.1. Description</a></li><li><a href="#ecdh-registration">23.8.2. Registration</a></li><li><a href="#dh-EcdhKeyDeriveParams">23.8.3. EcdhKeyDeriveParams dictionary</a></li><li><a href="#ecdh-operations">23.8.4. Operations</a></li></ul></li><li><a href="#aes-ctr">23.9. AES-CTR</a><ul><li><a href="#aes-ctr-description">23.9.1. Description</a></li><li><a href="#aes-ctr-registration">23.9.2. Registration</a></li><li><a href="#aes-ctr-params">23.9.3. AesCtrParams dictionary</a></li><li><a href="#aes-keygen-params">23.9.4. AesKeyGenParams dictionary</a></li><li><a href="#aes-ctr-operations">23.9.5. Operations</a></li></ul></li><li><a href="#aes-cbc">23.10. AES-CBC</a><ul><li><a href="#aes-cbc-description">23.10.1. Description</a></li><li><a href="#aes-cbc-registration">23.10.2. Registration</a></li><li><a href="#aes-cbc-params">23.10.3. AesCbcParams dictionary</a></li><li><a href="#aes-cbc-operations">23.10.4. Operations</a></li></ul></li><li><a href="#aes-gcm">23.11. AES-GCM</a><ul><li><a href="#aes-gcm-description">23.11.1. Description</a></li><li><a href="#aes-gcm-registration">23.11.2. Registration</a></li><li><a href="#aes-gcm-params">23.11.3. AesGcmParams dictionary</a></li><li><a href="#aes-gcm-operations">23.11.4. Operations</a></li></ul></li><li><a href="#hmac">23.12. HMAC</a><ul><li><a href="#hmac-description">23.12.1. Description</a></li><li><a href="#hmac-registration">23.12.2. Registration</a></li><li><a href="#hmac-params">23.12.3. HmacParams dictionary</a></li><li><a href="#hmac-operations">23.12.4. Operations</a></li></ul></li><li><a href="#dh">23.13. Diffie-Hellman</a><ul><li><a href="#dh-description">23.13.1. Description</a></li><li><a href="#dh-registration">23.13.2. Registration</a></li><li><a href="#dh-DhKeyGenParams">23.13.3. DhKeyGenParams dictionary</a></li><li><a href="#dh-DhKeyDeriveParams">23.13.4. DhKeyDeriveParams dictionary</a></li><li><a href="#dh-operations">23.13.5. Operations</a></li></ul></li><li><a href="#sha">23.14. SHA</a><ul><li><a href="#sha-description">23.14.1. Description</a></li><li><a href="#sha-registration">23.14.2. Registration</a></li><li><a href="#sha-operations">23.14.3. Operations</a></li></ul></li><li><a href="#concatkdf">23.15. Concat KDF</a><ul><li><a href="#concatkdf-description">23.15.1. Description</a></li><li><a href="#concatkdf-registration">23.15.2. Registration</a></li><li><a href="#concat-params">23.15.3. ConcatParams dictionary</a></li><li><a href="#concat-operations">23.15.4. Operations</a></li></ul></li><li><a href="#pbkdf2">23.16. PBKDF2</a><ul><li><a href="#pbkdf2-description">23.16.1. Description</a></li><li><a href="#pbkdf2-registration">23.16.2. Registration</a></li><li><a href="#pbkdf2-params">23.16.3. Pbkdf2Params dictionary</a></li><li><a href="#pbkdf2-operations">23.16.4. Operations</a></li></ul></li></ul></li><li><a href="#algorithm-normalizing-rules">24. Algorithm normalizing rules</a></li><li><a href="#examples-section">25. JavaScript Example Code</a><ul><li><a href="#examples-signing">25.1. Generate a signing key pair, sign some data</a></li><li><a href="#examples-symmetric-encryption">25.2. Symmetric Encryption</a></li></ul></li><li><a href="#acknowledgements-section">26. Acknowledgements</a></li><li><a href="#references">27. References</a><ul><li><a href="#normative-references">27.1. Normative References</a></li><li><a href="#informative-references">27.2. Informative References</a></li></ul></li></ul></div>
     </div>
 
     <div id="sections">
@@ -2935,13 +2935,76 @@
             </ul>
           </div>
         </div>
+        <div id="concatkdf" class="section">
+          <h3>23.15. Concat KDF</h3>
+          <div id="concatkdf-description" class="section">
+            <h4>23.15.1. Description</h4>
+            <p>
+              The <code>"CONCAT"</code> algorithm identifier is used to perform key derivation
+              using the key derivation algorithm defined in Section 5.8.1 of NIST SP 800-56A
+              [<a href="#SP800-56A">SP800-56A</a>].
+            </p>
+          </div>
+          <div id="concatkdf-registration" class="section">
+            <h4>23.15.2. Registration</h4>
+            <p>
+              The <a href="#recognized-algorithm-name">recognized algorithm name</a> for
+              this algorithm is <code>"CONCAT"</code>.
+            </p>
+            <table>
+              <thead>
+                <tr>
+                  <th><a href="#supported-operations">Operation</a></th>
+                  <th><a href="#algorithm-specific-params">Parameters</a></th>
+                  <th><a href="#algorithm-result">Result</a></th>
+                </tr>
+              </thead>
+              <tbody>
+                <tr>
+                  <td>deriveKey</td>
+                  <td><a href="#dfn-ConcatParams">ConcatParams</a></td>
+                  <td><a href="#dfn-Key">Key</a>?</td>
+                </tr>
+              </tbody>
+            </table>
+          </div>
+          <div id="concat-params" class="section">
+            <h4>23.15.3. ConcatParams dictionary</h4>
+            <div class="block"><div class="blockTitleDiv"><span class="blockTitle">IDL</span></div><div class="blockContent"><pre class="code"><code class="idl-code">
+dictionary <dfn id="dfn-ConcatParams">ConcatParams</dfn> : <a href="#dfn-AlgorithmParameters">AlgorithmParameters</a> {
+  <span class="comment">// The digest method to use to derive the keying material.</span>
+  AlgorithmIdentifier hash;
+
+  <span class="comment">// A bit string corresponding to the AlgorithmId field of the OtherInfo parameter.</span>
+  <span class="comment">// The AlgorithmId indicates how the derived keying material will be parsed and for which</span>
+  <span class="comment">// algorithm(s) the derived secret keying material will be used.</span>
+  ArrayBufferView algorithmId;
+
+  <span class="comment">// A bit string that corresponds to the PartyUInfo field of the OtherInfo parameter.</span>
+  ArrayBufferView partyUInfo;
+  <span class="comment">// A bit string that corresponds to the PartyVInfo field of the OtherInfo parameter.</span>
+  ArrayBufferView partyVInfo;
+  <span class="comment">// An optional bit string that corresponds to the SuppPubInfo field of the OtherInfo parameter.</span>
+  ArrayBufferView? publicInfo;
+  <span class="comment">// An optional bit string that corresponds to the SuppPrivInfo field of the OtherInfo parameter.</span>
+  ArrayBufferView? privateInfo;
+};
+            </code></pre></div></div>
+          </div>
+          <div id="concat-operations" class="section">
+            <h4>23.15.4. Operations</h4>
+            <ul>
+              <li>Derive Key</li>
+            </ul>
+          </div>
+        </div>
         <div id="pbkdf2" class="section">
-          <h3>23.15. PBKDF2</h3>
+          <h3>23.16. PBKDF2</h3>
           <div id="pbkdf2-description" class="section">
-            <h4>23.15.1. Description</h4>
+            <h4>23.16.1. Description</h4>
           </div>
           <div id="pbkdf2-registration" class="section">
-            <h4>23.15.2. Registration</h4>
+            <h4>23.16.2. Registration</h4>
             <p>
               The <a href="#recognized-algorithm-name">recognized algorithm name</a> for
               this algorithm is <code>"PBKDF2"</code>.
@@ -2964,7 +3027,7 @@
             </table>
           </div>
           <div id="pbkdf2-params" class="section">
-            <h4>23.15.3. Pbkdf2Params dictionary</h4>
+            <h4>23.16.3. Pbkdf2Params dictionary</h4>
             <div class="block"><div class="blockTitleDiv"><span class="blockTitle">IDL</span></div><div class="blockContent"><pre class="code"><code class="idl-code">
 dictionary <dfn id="dfn-Pbkdf2Params">Pbkdf2Params</dfn> : <a href="#dfn-AlgorithmParameters">AlgorithmParameters</a> {
   ArrayBufferView salt;
@@ -2983,7 +3046,7 @@
             </div>
           </div>
           <div id="pbkdf2-operations" class="section">
-            <h4>23.15.4. Operations</h4>
+            <h4>23.16.4. Operations</h4>
             <ul>
               <li>Derive Key</li>
             </ul>