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Documentation: clearer description of how number of iterations are calculated

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Mounir IDRASSI
2022-03-27 16:33:40 +02:00
parent 540fb52aca
commit a077eb94ef
3 changed files with 7 additions and 3 deletions
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doc/html/Personal Iterations Multiplier (PIM).html
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@@ -44,7 +44,9 @@
Header Key Derivation</a>).</p>
<p>When a PIM value is specified, the number of iterations is calculated as follows:</p>
<ul>
<li>For system encryption that doesn't use SHA-512 or Whirlpool: Iterations = <strong>PIM x 2048</strong> </li><li>For system encryption that uses SHA-512 or Whirlpool, non-system encryption and file containers: Iterations = <strong>15000 &#43; (PIM x 1000)</strong>
<li>For system encryption that doesn't use SHA-512 or Whirlpool: Iterations = <strong>PIM x 2048</strong>
</li><li>For system encryption that uses SHA-512 or Whirlpool: Iterations = <strong>15000 &#43; (PIM x 1000)</strong>
</li><li>For non-system encryption and file containers: Iterations = <strong>15000 &#43; (PIM x 1000)</strong>
</li></ul>
<p>Prior to version 1.12, the security of a VeraCrypt volume was only based on the password strength because VeraCrypt was using a fixed number of iterations.<br>
With the introduction of PIM, VeraCrypt has a 2-dimensional security space for volumes based on the couple (Password, PIM). This provides more flexibility for adjusting the desired security level while also controlling the performance of the mount/boot operation.</p>