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<!DOCTYPE chapter SYSTEM "chapter.dtd">

<chapter>
  <header>
    <copyright>
      <year>2008</year>
      <year>2016</year>
      <holder>Ericsson AB, All Rights Reserved</holder>
    </copyright>
    <legalnotice>
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at
 
      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.

  The Initial Developer of the Original Code is Ericsson AB.
    </legalnotice>
    
    <title>public_key Release Notes</title>
    <prepared>Ingela Anderton Andin</prepared>
    <responsible>Ingela Anderton Andin</responsible>
    <docno></docno>
    <approved></approved>
    <checked></checked>
    <date>2008-01-22</date>
    <rev>A</rev>
    <file>notes.xml</file>
  </header>

<section><title>Public_Key 1.4</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    New function <c>pkix_verify_hostname/2,3</c> Implements
	    certificate hostname checking. See the manual and RFC
	    6125.</p>
          <p>
	    Own Id: OTP-13009</p>
        </item>
        <item>
          <p>
	    The ssh host key fingerprint generation now also takes a
	    list of algorithms and returns a list of corresponding
	    fingerprints. See
	    <c>public_key:ssh_hostkey_fingerprint/2</c> and the
	    option <c>silently_accept_hosts</c> in
	    <c>ssh:connect</c>.</p>
          <p>
	    Own Id: OTP-14223</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 1.3</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    New function
	    <c>public_key:ssh_hostkey_fingerprint/1,2</c> to
	    calculate the SSH host key fingerprint string.</p>
          <p>
	    Own Id: OTP-13888 Aux Id: OTP-13887 </p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 1.2</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    The ASN-1 type GeneralName can have more values, then the
	    most common directory name, the code now handles this.</p>
          <p>
	    Own Id: OTP-13554</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Handle PEM encoded EC public keys</p>
          <p>
	    Own Id: OTP-13408</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 1.1.1</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    An encapsulated PEM header shall be followed by a blank
	    line</p>
          <p>
	    Own Id: OTP-13381 Aux Id: seq13070 </p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 1.1</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    The 'ecdsa-sha2-nistp256', 'ecdsa-sha2-nistp384' and
	    'ecdsa-sha2-nistp521' signature algorithms for ssh are
	    implemented. See RFC 5656.</p>
          <p>
	    Own Id: OTP-12936</p>
        </item>
        <item>
          <p>
	    There is now a file (public_key/priv/moduli) which lists
	    size-generator-modulus triples. The purpose is to give
	    servers the possibility to select the crypto primes
	    randomly among a list of pregenerated triples. This
	    reduces the risk for some attacks on diffie-hellman
	    negotiation.</p>
          <p>
	    See the reference manual for public_key:dh_gex_group/4
	    where the handling of this is described.</p>
          <p>
	    The ssh server (ssh:daemon) uses this.</p>
          <p>
	    Own Id: OTP-13054 Aux Id: OTP-13052 </p>
        </item>
        <item>
          <p>
	    Add different upper bounds for diffrent string types as
	    suggested by comment in PKIX1Explicit88.</p>
          <p>
	    Own Id: OTP-13132</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 1.0.1</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Document enhancements</p>
          <p>
	    Own Id: OTP-12986</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 1.0</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    public_key: Remove legacy switch compact_bit_string</p>
          <p>
	    E.i bitstrings will not be decode as {Unused, Binary},
	    they are now Erlang bitstrings.</p>
          <p>
	    Also the compact_bit_string implies the
	    legacy_erlang_types switch So removing the switch will
	    also make OCTET STRING values be represented as binaries.</p>
          <p>
	    Undecoded open type will now be wrapped in a
	    asn1_OPENTYPE tuple.</p>
          <p>
	    This will change some values in records returned by the
	    public_key API making this change a potentiall
	    incompatibility.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-12110</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 0.23</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Improve/extend support for CRL handling.</p>
          <p>
	    Own Id: OTP-12547 Aux Id: OTP-10362 </p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 0.22.1</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Added missing encoding support for PBES2, and also
	    completed support for PBES1 that was incomplete.</p>
          <p>
	    Own Id: OTP-11915</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 0.22</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Fix incorrect dialyzer spec and types, also enhance
	    documentation. </p>
          <p>
	    Thanks to Ayaz Tuncer.</p>
          <p>
	    Own Id: OTP-11627</p>
        </item>
        <item>
          <p>
	    Application upgrade (appup) files are corrected for the
	    following applications: </p>
          <p>
	    <c>asn1, common_test, compiler, crypto, debugger,
	    dialyzer, edoc, eldap, erl_docgen, et, eunit, gs, hipe,
	    inets, observer, odbc, os_mon, otp_mibs, parsetools,
	    percept, public_key, reltool, runtime_tools, ssh,
	    syntax_tools, test_server, tools, typer, webtool, wx,
	    xmerl</c></p>
          <p>
	    A new test utility for testing appup files is added to
	    test_server. This is now used by most applications in
	    OTP.</p>
          <p>
	    (Thanks to Tobias Schlager)</p>
          <p>
	    Own Id: OTP-11744</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Moved elliptic curve definition from the crypto
	    NIF/OpenSSL into Erlang code, adds the RFC-5639 brainpool
	    curves and makes TLS use them (RFC-7027).</p>
          <p>
	    Thanks to Andreas Schultz</p>
          <p>
	    Own Id: OTP-11578</p>
        </item>
        <item>
          <p>
	    Handle v1 CRLs, with no extensions and fixes issues with
	    IDP (Issuing Distribution Point) comparison during CRL
	    validation. </p>
          <p>
	    Thanks to Andrew Thompson</p>
          <p>
	    Own Id: OTP-11761</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 0.21</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Fixed a little typo in public_key documentation. Thanks
	    to Tomas Morstein.</p>
          <p>
	    Own Id: OTP-11380</p>
        </item>
        <item>
          <p>
	    public_key: Workaround for incorrectly encoded utf8
	    emailAddress. Thanks to Andrew Bennett.</p>
          <p>
	    Own Id: OTP-11470</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 0.20</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Extend PKCS-7 to support SCEP (Simple Certificate
	    Enrollment Protocol).</p>
          <p>
	    Own Id: OTP-10874</p>
        </item>
        <item>
          <p>
	    public_key:pem_entry_decode/2 now handles AES-128-CBC
	    ciphered keys. Thanks to Simon Cornish.</p>
          <p>
	    Own Id: OTP-11281</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 0.19</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Add support for ISO oids 1.3.14.3.2.29 and 1.3.14.3.2.27
	    that are somtimes used instead of the PKCS defined oids
	    1.2.840.113549.1.1.5 and 1.2.840.10040.4.3. Add function
	    pkix_sign_types:/1 that translates oids to to algorithm
	    atoms ex:</p>
          <p>
	    > public_key:pkix_sign_types({1,3,14,3,2,29}). {sha,rsa}</p>
          <p>
	    Own Id: OTP-10873</p>
        </item>
        <item>
          <p>
	    Integrate elliptic curve contribution from Andreas
	    Schultz </p>
          <p>
	    In order to be able to support elliptic curve cipher
	    suites in SSL/TLS, additions to handle elliptic curve
	    infrastructure has been added to public_key and crypto.</p>
          <p>
	    This also has resulted in a rewrite of the crypto API to
	    gain consistency and remove unnecessary overhead. All OTP
	    applications using crypto has been updated to use the new
	    API.</p>
          <p>
	    Impact: Elliptic curve cryptography (ECC) offers
	    equivalent security with smaller key sizes than other
	    public key algorithms. Smaller key sizes result in
	    savings for power, memory, bandwidth, and computational
	    cost that make ECC especially attractive for constrained
	    environments.</p>
          <p>
	    Own Id: OTP-11009</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 0.18</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Fix subjectPublicKeyInfo type comment in public_key.
	    Thanks to Ryosuke Nakai.</p>
          <p>
	    Own Id: OTP-10670</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    public_key now supports CRL validation and documents the
	    function public_key:pkix_path_validation/3</p>
          <p>
	    Own Id: OTP-7045</p>
        </item>
        <item>
	    <p> Some examples overflowing the width of PDF pages have
	    been corrected. </p>
          <p>
	    Own Id: OTP-10665</p>
        </item>
        <item>
          <p>
	    Fixed typo's in public_key spec.</p>
          <p>
	    Own Id: OTP-10723</p>
        </item>
        <item>
          <p>
	    Corrected PKCS-10 documentation and added some PKCS-9
	    support that is fairly commonly used by PKCS-10. Full
	    support for PKCS-9 will be added later.</p>
          <p>
	    Own Id: OTP-10767</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 0.17</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    ssh_decode now handles comments, at the end of the line,
	    containing withe spaces correctly</p>
          <p>
	    Own Id: OTP-9361</p>
        </item>
        <item>
          <p>
	    Add missing references to sha224 and sha384</p>
          <p>
	    Own Id: OTP-9362 Aux Id: seq12116 </p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    public_key now supports PKCS-10 and includes exprimental
	    support for PKCS-7</p>
          <p>
	    Own Id: OTP-10509 Aux Id: kunagi-291 [202] </p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 0.16</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Add crypto and public_key support for the hash functions
	    SHA224, SHA256, SHA384 and SHA512 and also hmac and
	    rsa_sign/verify support using these hash functions.
	    Thanks to Andreas Schultz for making a prototype.</p>
          <p>
	    Own Id: OTP-9908</p>
        </item>
        <item>
          <p>
	    Optimize RSA private key handling in <c>crypto</c> and
	    <c>public_key</c>.</p>
          <p>
	    Own Id: OTP-10065</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 0.15</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Changed ssh implementation to use the public_key
	    application for all public key handling. This is also a
	    first step for enabling a callback API for supplying
	    public keys and handling keys protected with password
	    phrases. </p>
          <p>
	    Additionally the test suites where improved so that they
	    do not copy the users keys to test server directories as
	    this is a security liability. Also ipv6 and file access
	    issues found in the process has been fixed.</p>
          <p>
	    This change also solves OTP-7677 and OTP-7235</p>
          <p>
	    This changes also involves some updates to public_keys
	    ssh-functions.</p>
          <p>
	    Own Id: OTP-9911</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 0.14</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    public_key, ssl and crypto now supports PKCS-8</p>
          <p>
	    Own Id: OTP-9312</p>
        </item>
        <item>
          <p>
	    The asn1 decoder/encoder now uses a runtime nif from the
	    asn1 application if it is available.</p>
          <p>
	    Own Id: OTP-9414</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 0.13</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    replace "a ssl" with "an ssl" reindent
	    pkix_path_validation/3 Trivial documentation fixes
	    (Thanks to Christian von Roques )</p>
          <p>
	    Own Id: OTP-9464</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 0.12</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    The public_key application now supports encode/decode of
	    ssh public-key files.</p>
          <p>
	    Own Id: OTP-9144</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 0.11</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Allows the public_key module to decode and encode RSA and
	    DSA keys encoded using the SubjectPublicKeyInfo format.
	    When pem_entry_encode is called on an RSA or DSA public
	    key type, the key is wrapped in the SubjectPublicKeyInfo
	    format.</p>
          <p>
	    Own Id: OTP-9061</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 0.10</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Improved dialyzer specs.</p>
          <p>
	    Own Id: OTP-8964</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 0.9</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Updated ssl to ignore CA certs that violate the asn1-spec
	    for a certificate, and updated public key asn1 spec to
	    handle inherited DSS-params.</p>
          <p>
	    Own Id: OTP-7884</p>
        </item>
        <item>
          <p>
	    Changed ssl implementation to retain backwards
	    compatibility for old option {verify, 0} that shall be
	    equivalent to {verify, verify_none}, also separate the
	    cases unknown ca and selfsigned peer cert, and restored
	    return value of deprecated function
	    public_key:pem_to_der/1.</p>
          <p>
	    Own Id: OTP-8858</p>
        </item>
        <item>
          <p>
	    Better handling of v1 and v2 certificates. V1 and v2
	    certificates does not have any extensions so then
	    validate_extensions should just accept that there are
	    none and not end up in missing_basic_constraints clause.</p>
          <p>
	    Own Id: OTP-8867</p>
        </item>
        <item>
          <p>
	    Changed the verify fun so that it differentiate between
	    the peer certificate and CA certificates by using
	    valid_peer or valid as the second argument to the verify
	    fun. It may not always be trivial or even possible to
	    know when the peer certificate is reached otherwise.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-8873</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 0.8</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Handling of unknown CA certificates was changed in ssl
	    and public_key to work as intended.</p>
          <p>
	    Own Id: OTP-8788</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Revise the public_key API - Cleaned up and documented the
	    public_key API to make it useful for general use, also
	    changed ssl to use the new API.</p>
          <p>
	    Own Id: OTP-8722</p>
        </item>
        <item>
          <p>
	    Added the functionality so that the verification fun will
	    be called when a certificate is considered valid by the
	    path validation to allow access to each certificate in
	    the path to the user application. Also try to verify
	    subject-AltName, if unable to verify it let the
	    application verify it.</p>
          <p>
	    Own Id: OTP-8825</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 0.7</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
            Certificates without any extensions could not be handled
            by public_key.</p>
          <p>
            Own Id: OTP-8626</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
            Code cleanup and minor bugfixes.</p>
          <p>
            Own Id: OTP-8649</p>
        </item>
      </list>
    </section>

</section>

<section><title>Public_Key 0.6</title>

<section><title>Improvements and New Features</title>
<list>
  <item>
    <p>
      Support for Diffie-Hellman. ssl-3.11 requires
    public_key-0.6.</p>
    <p>
    Own Id: OTP-7046</p>
  </item>
  <item>
    <p>
    Moved extended key usage test for ssl values to ssl.</p>
    <p>
    Own Id: OTP-8553 Aux Id: seq11541, OTP-8554 </p>
  </item>
</list>
</section>

</section>

<section><title>Public_Key 0.5</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
	  <p>Added <c>public_key:pkix_transform/2</c> to enable
            ssl to send CA list during Certificate Request.</p> 
	  <p><c>NOTE</c>: SSL (new_ssl) requires public_key-0.5.
	    ssl usage.</p>
          <p>Own Id: OTP-8372</p>
        </item>
      </list>
    </section>

</section>

  <section><title>Public_Key 0.4</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
            The documentation is now built with open source tools
            (xsltproc and fop) that exists on most platforms. One
            visible change is that the frames are removed.</p>
          <p>
            Own Id: OTP-8250</p>
        </item>
      </list>
    </section>

  </section>

  <section><title>Public_Key 0.3</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
            Unknown attributes in certificates are left encoded
            instead of crashing. Patch by Will "wglozer" thanks.</p>
          <p>
            Own Id: OTP-8100</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
            Allow public_key:pem_to_der/[1,2] to take a binary as
            argument in addition to a filename. Patch by Geoff Cant,
            thanks.</p>
          <p>
            Own Id: OTP-8142</p>
        </item>
      </list>
    </section>

  </section>

<section><title>Public_Key 0.2</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
            X509 certificate handling has been extended and improved
            as a result of more extensive testing of both the ssl
            and public_key application. Even more extensions of the
            certificate handling is yet to be implemented.</p>
          <p>
            Own Id: OTP-7860</p>
        </item>
      </list>
    </section>

</section>
  
<section><title>Public_Key 0.1</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
            First version.</p>
          <p>
            Own Id: OTP-7637</p>
        </item>
      </list>
    </section>

</section>

  
</chapter>

