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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.8 $ -->
<appendix xml:id="openssl.constants" xmlns="http://docbook.org/ns/docbook">
&reftitle.constants;
&extension.constants;
<section xml:id="openssl.purpose-check">
<title>Purpose checking flags</title>
<variablelist>
<varlistentry>
<term>
<constant>X509_PURPOSE_SSL_CLIENT</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<constant>X509_PURPOSE_SSL_SERVER</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<constant>X509_PURPOSE_NS_SSL_SERVER</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<constant>X509_PURPOSE_SMIME_SIGN</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<constant>X509_PURPOSE_SMIME_ENCRYPT</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<constant>X509_PURPOSE_CRL_SIGN</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<constant>X509_PURPOSE_ANY</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
</variablelist>
</section>
<section xml:id="openssl.padding">
<title>Padding flags</title>
<variablelist>
<varlistentry>
<term>
<constant>OPENSSL_PKCS1_PADDING</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<constant>OPENSSL_SSLV23_PADDING</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<constant>OPENSSL_NO_PADDING</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<constant>OPENSSL_PKCS1_OAEP_PADDING</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
</variablelist>
</section>
<section xml:id="openssl.key-types">
<title>Key types</title>
<variablelist>
<varlistentry>
<term>
<constant>OPENSSL_KEYTYPE_RSA</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<constant>OPENSSL_KEYTYPE_DSA</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<constant>OPENSSL_KEYTYPE_DH</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
</variablelist>
</section>
<section xml:id="openssl.pkcs7.flags">
<title>PKCS7 Flags/Constants</title>
<para>
The S/MIME functions make use of flags which are specified using a
bitfield which can include one or more of the following values:
<table>
<title>PKCS7 CONSTANTS</title>
<tgroup cols="2">
<thead>
<row>
<entry>Constant</entry>
<entry>Description</entry>
</row>
</thead>
<tbody>
<row>
<entry>PKCS7_TEXT</entry>
<entry>Adds text/plain content type headers to encrypted/signed
message. If decrypting or verifying, it strips those headers from
the output - if the decrypted or verified message is not of MIME type
text/plain then an error will occur.</entry>
</row>
<row>
<entry>PKCS7_BINARY</entry>
<entry>Normally the input message is converted to "canonical" format
which is effectively using CR and LF as end of line: as required by
the S/MIME specification. When this options is present, no
translation occurs. This is useful when handling binary data which
may not be in MIME format.</entry>
</row>
<row>
<entry>PKCS7_NOINTERN</entry>
<entry>When verifying a message, certificates (if
any) included in the message are normally searched for the
signing certificate. With this option only the
certificates specified in the <parameter>extracerts</parameter>
parameter of <function>openssl_pkcs7_verify</function> are
used. The supplied certificates can still be used as
untrusted CAs however.
</entry>
</row>
<row>
<entry>PKCS7_NOVERIFY</entry>
<entry>Do not verify the signers certificate of a signed
message.</entry>
</row>
<row>
<entry>PKCS7_NOCHAIN</entry>
<entry>Do not chain verification of signers certificates: that is
don't use the certificates in the signed message as untrusted CAs.
</entry>
</row>
<row>
<entry>PKCS7_NOCERTS</entry>
<entry>When signing a message the signer's certificate is normally
included - with this option it is excluded. This will reduce the
size of the signed message but the verifier must have a copy of the
signers certificate available locally (passed using the
<parameter>extracerts</parameter> to
<function>openssl_pkcs7_verify</function> for example).
</entry>
</row>
<row>
<entry>PKCS7_NOATTR</entry>
<entry>Normally when a message is signed, a set of attributes are
included which include the signing time and the supported symmetric
algorithms. With this option they are not included.
</entry>
</row>
<row>
<entry>PKCS7_DETACHED</entry>
<entry>When signing a message, use cleartext signing with the MIME
type multipart/signed. This is the default
if you do not specify any <parameter>flags</parameter> to
<function>openssl_pkcs7_sign</function>.
If you turn this option off, the message will be signed using
opaque signing, which is more resistant to translation by mail relays
but cannot be read by mail agents that do not support S/MIME.</entry>
</row>
<row>
<entry>PKCS7_NOSIGS</entry>
<entry>Don't try and verify the signatures on a message</entry>
</row>
</tbody>
</tgroup>
</table>
</para>
<note>
<para>These constants were added in 4.0.6.</para>
</note>
</section>
<section xml:id="openssl.signature-algos">
<title>Signature Algorithms</title>
<variablelist>
<varlistentry>
<term>
<constant>OPENSSL_ALGO_SHA1</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
Used as default algorithm by <function>openssl_sign</function> and
<function>openssl_verify</function>.
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<constant>OPENSSL_ALGO_MD5</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<constant>OPENSSL_ALGO_MD4</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<constant>OPENSSL_ALGO_MD2</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
</variablelist>
<note>
<para>These constants were added in 5.0.0.</para>
</note>
</section>
<section xml:id="openssl.ciphers">
<title>Ciphers</title>
<variablelist>
<varlistentry>
<term>
<constant>OPENSSL_CIPHER_RC2_40</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<constant>OPENSSL_CIPHER_RC2_128</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<constant>OPENSSL_CIPHER_RC2_64</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<constant>OPENSSL_CIPHER_DES</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<constant>OPENSSL_CIPHER_3DES</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
</variablelist>
<note>
<para>These constants were added in 4.3.0.</para>
</note>
</section>
<section xml:id="openssl.constversion">
<title>Version constants</title>
<variablelist>
<varlistentry>
<term>
<constant>OPENSSL_VERSION_TEXT</constant>
(<type>string</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term>
<constant>OPENSSL_VERSION_NUMBER</constant>
(<type>integer</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
</variablelist>
<note>
<para>These constants were added in 5.2.0.</para>
</note>
</section>
</appendix>
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