eric7/Documentation/Source/eric7.Utilities.crypto.py3PBKDF2.html

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<h1>eric7.Utilities.crypto.py3PBKDF2</h1>

<p>
Module implementing PBKDF2 functions.
</p>
<h3>Global Attributes</h3>

<table>
<tr><td>Delimiter</td></tr><tr><td>Hashes</td></tr>
</table>
<h3>Classes</h3>

<table>
<tr><td>None</td></tr>
</table>
<h3>Functions</h3>

<table>

<tr>
<td><a href="#hashPassword">hashPassword</a></td>
<td>Module function to hash a password according to the PBKDF2 specification.</td>
</tr>
<tr>
<td><a href="#hashPasswordTuple">hashPasswordTuple</a></td>
<td>Module function to hash a password according to the PBKDF2 specification.</td>
</tr>
<tr>
<td><a href="#pbkdf2">pbkdf2</a></td>
<td>Module function to hash a password according to the PBKDF2 specification.</td>
</tr>
<tr>
<td><a href="#rehashPassword">rehashPassword</a></td>
<td>Module function to recreate a password hash given the hash parameters.</td>
</tr>
<tr>
<td><a href="#verifyPassword">verifyPassword</a></td>
<td>Module function to verify a password against a hash encoded password.</td>
</tr>
</table>
<hr />
<hr />
<a NAME="hashPassword" ID="hashPassword"></a>
<h2>hashPassword</h2>
<b>hashPassword</b>(<i>password, digestMod=hashlib.sha512, iterations=10000, saltSize=32</i>)

<p>
    Module function to hash a password according to the PBKDF2 specification.
</p>
<dl>

<dt><i>password</i></dt>
<dd>
clear text password (string)
</dd>
<dt><i>digestMod</i></dt>
<dd>
hash function
</dd>
<dt><i>iterations</i></dt>
<dd>
number of times hash function should be applied (integer)
</dd>
<dt><i>saltSize</i></dt>
<dd>
size of the salt (integer)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
hashed password entry according to PBKDF2 specification (string)
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="hashPasswordTuple" ID="hashPasswordTuple"></a>
<h2>hashPasswordTuple</h2>
<b>hashPasswordTuple</b>(<i>password, digestMod=hashlib.sha512, iterations=10000, saltSize=32</i>)

<p>
    Module function to hash a password according to the PBKDF2 specification.
</p>
<dl>

<dt><i>password</i></dt>
<dd>
clear text password (string)
</dd>
<dt><i>digestMod</i></dt>
<dd>
hash function
</dd>
<dt><i>iterations</i></dt>
<dd>
number of times hash function should be applied (integer)
</dd>
<dt><i>saltSize</i></dt>
<dd>
size of the salt (integer)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
tuple of digestname (string), number of iterations (integer),
        salt (bytes) and hashed password (bytes)
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="pbkdf2" ID="pbkdf2"></a>
<h2>pbkdf2</h2>
<b>pbkdf2</b>(<i>password, salt, iterations, digestMod</i>)

<p>
    Module function to hash a password according to the PBKDF2 specification.
</p>
<dl>

<dt><i>password</i></dt>
<dd>
clear text password (bytes)
</dd>
<dt><i>salt</i></dt>
<dd>
salt value (bytes)
</dd>
<dt><i>iterations</i></dt>
<dd>
number of times hash function should be applied (integer)
</dd>
<dt><i>digestMod</i></dt>
<dd>
hash function
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
hashed password (bytes)
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="rehashPassword" ID="rehashPassword"></a>
<h2>rehashPassword</h2>
<b>rehashPassword</b>(<i>password, hashParameters</i>)

<p>
    Module function to recreate a password hash given the hash parameters.
</p>
<dl>

<dt><i>password</i></dt>
<dd>
clear text password (string)
</dd>
<dt><i>hashParameters</i></dt>
<dd>
hash parameters in the form
        'digestmod$iterations$salt' (string)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
hashed password (bytes)
</dd>
</dl>
<dl>

<dt>Raises <b>ValueError</b>:</dt>
<dd>
the hash parameters string is not of the expected
        format or the digest is not one of the known ones
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="verifyPassword" ID="verifyPassword"></a>
<h2>verifyPassword</h2>
<b>verifyPassword</b>(<i>password, pwHash</i>)

<p>
    Module function to verify a password against a hash encoded password.
</p>
<dl>

<dt><i>password</i></dt>
<dd>
clear text password (string)
</dd>
<dt><i>pwHash</i></dt>
<dd>
hash encoded password in the form
        'digestmod$iterations$salt$hashed_password' as produced by the
        hashPassword function (string)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
flag indicating a successfull verification (boolean)
</dd>
</dl>
<dl>

<dt>Raises <b>ValueError</b>:</dt>
<dd>
the hash is not of the expected format or the
        digest is not one of the known ones
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
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