mirror of
https://github.com/veracrypt/VeraCrypt
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92 lines
8.6 KiB
HTML
92 lines
8.6 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
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<head>
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<meta http-equiv="content-type" content="text/html; charset=utf-8" />
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<title>VeraCrypt - Free Open source disk encryption with strong security for the Paranoid</title>
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<meta name="description" content="VeraCrypt is free open-source disk encryption software for Windows, Mac OS X and Linux. In case an attacker forces you to reveal the password, VeraCrypt provides plausible deniability. In contrast to file encryption, data encryption performed by VeraCrypt is real-time (on-the-fly), automatic, transparent, needs very little memory, and does not involve temporary unencrypted files."/>
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<meta name="keywords" content="encryption, security"/>
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<link href="styles.css" rel="stylesheet" type="text/css" />
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</head>
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<body>
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<div>
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<a href="Documentation.html"><img src="VeraCrypt128x128.png" alt="VeraCrypt"/></a>
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</div>
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<div id="menu">
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<ul>
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<li><a href="Home.html">Home</a></li>
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<li><a href="/code/">Source Code</a></li>
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<li><a href="Downloads.html">Downloads</a></li>
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<li><a class="active" href="Documentation.html">Documentation</a></li>
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<li><a href="Donation.html">Donate</a></li>
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<li><a href="https://sourceforge.net/p/veracrypt/discussion/" target="_blank">Forums</a></li>
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</ul>
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<div>
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<p>
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<a href="Documentation.html">Documentation</a>
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<img src="arrow_right.gif" alt=">>" style="margin-top: 5px">
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<a href="Encryption%20Algorithms.html">Encryption Algorithms</a>
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<img src="arrow_right.gif" alt=">>" style="margin-top: 5px">
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<a href="Cascades.html">Cascades of ciphers</a>
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</p></div>
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<div class="wikidoc">
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<h1>Cascades of ciphers</h1>
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<p> </p>
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<h2>AES-Twofish</h2>
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<p>Two ciphers in a cascade [15, 16] operating in XTS mode (see the section <a href="Modes%20of%20Operation.html">
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<em>Modes of Operation</em></a>). Each 128-bit block is first encrypted with Twofish (256-bit key) in XTS mode and then with AES (256-bit key) in XTS mode. Each of the cascaded ciphers uses its own key. All encryption keys are mutually independent (note that
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header keys are independent too, even though they are derived from a single password – see
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<a href="Header Key Derivation.html"><em>Header Key Derivation, Salt, and Iteration Count</em></a>). See above for information on the individual cascaded ciphers.</p>
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<h2>AES-Twofish-Serpent</h2>
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<p>Three ciphers in a cascade [15, 16] operating in XTS mode (see the section <a href="Modes%20of%20Operation.html">
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<em>Modes of Operation</em></a>). Each 128-bit block is first encrypted with Serpent (256-bit key) in XTS mode, then with Twofish (256-bit key) in XTS mode, and finally with AES (256-bit key) in XTS mode. Each of the cascaded ciphers uses its own key. All encryption
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keys are mutually independent (note that header keys are independent too, even though they are derived from a single password – see the section
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<a href="Header Key Derivation.html"><em>Header Key Derivation, Salt, and Iteration Count</em></a>). See above for information on the individual cascaded ciphers.</p>
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<h2>Camellia-Kuznyechik</h2>
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<p>Two ciphers in a cascade [15, 16] operating in XTS mode (see the section <a href="Modes%20of%20Operation.html">
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<em>Modes of Operation</em></a>). Each 128-bit block is first encrypted with Kuznyechik (256-bit key) in XTS mode and then with Camellia (256-bit key) in XTS mode. Each of the cascaded ciphers uses its own key. All encryption keys are mutually independent (note that
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header keys are independent too, even though they are derived from a single password – see the section
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<a href="Header Key Derivation.html"><em>Header Key Derivation, Salt, and Iteration Count</em></a>). See above for information on the individual cascaded ciphers.</p>
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<h2>Camellia-Serpent</h2>
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<p>Two ciphers in a cascade [15, 16] operating in XTS mode (see the section <a href="Modes%20of%20Operation.html">
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<em>Modes of Operation</em></a>). Each 128-bit block is first encrypted with Serpent (256-bit key) in XTS mode and then with Camellia (256-bit key) in XTS mode. Each of the cascaded ciphers uses its own key. All encryption keys are mutually independent (note that
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header keys are independent too, even though they are derived from a single password – see the section
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<a href="Header Key Derivation.html"><em>Header Key Derivation, Salt, and Iteration Count</em></a>). See above for information on the individual cascaded ciphers.</p>
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<h2>Kuznyechik-AES</h2>
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<p>Two ciphers in a cascade [15, 16] operating in XTS mode (see the section <a href="Modes%20of%20Operation.html">
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<em>Modes of Operation</em></a>). Each 128-bit block is first encrypted with AES (256-bit key) in XTS mode and then with Kuznyechik (256-bit key) in XTS mode. Each of the cascaded ciphers uses its own key. All encryption keys are mutually independent (note that
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header keys are independent too, even though they are derived from a single password – see the section
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<a href="Header Key Derivation.html"><em>Header Key Derivation, Salt, and Iteration Count</em></a>). See above for information on the individual cascaded ciphers.</p>
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<h2>Kuznyechik-Serpent-Camellia</h2>
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<p>Three ciphers in a cascade [15, 16] operating in XTS mode (see the section <a href="Modes%20of%20Operation.html">
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<em>Modes of Operation</em></a>). Each 128-bit block is first encrypted with Camellia (256-bit key) in XTS mode, then with Serpent (256- bit key) in XTS mode, and finally with Kuznyechik (256-bit key) in XTS mode. Each of the cascaded ciphers uses its own key. All
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encryption keys are mutually independent (note that header keys are independent too, even though they are derived from a single password – see the section
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<a href="Header Key Derivation.html"><em>Header Key Derivation, Salt, and Iteration Count</em></a>). See above for information on the individual cascaded ciphers.</p>
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<h2>Kuznyechik-Twofish</h2>
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<p>Two ciphers in a cascade [15, 16] operating in XTS mode (see the section <a href="Modes%20of%20Operation.html">
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<em>Modes of Operation</em></a>). Each 128-bit block is first encrypted with Twofish (256-bit key) in XTS mode and then with Kuznyechik (256-bit key) in XTS mode. Each of the cascaded ciphers uses its own key. All encryption keys are mutually independent (note that
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header keys are independent too, even though they are derived from a single password – see the section
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<a href="Header Key Derivation.html"><em>Header Key Derivation, Salt, and Iteration Count</em></a>). See above for information on the individual cascaded ciphers.</p>
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<h2>Serpent-AES</h2>
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<p>Two ciphers in a cascade [15, 16] operating in XTS mode (see the section <a href="Modes%20of%20Operation.html">
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<em>Modes of Operation</em></a>). Each 128-bit block is first encrypted with AES (256-bit key) in XTS mode and then with Serpent (256-bit key) in XTS mode. Each of the cascaded ciphers uses its own key. All encryption keys are mutually independent (note that
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header keys are independent too, even though they are derived from a single password – see the section
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<a href="Header Key Derivation.html"><em>Header Key Derivation, Salt, and Iteration Count</em></a>). See above for information on the individual cascaded ciphers.</p>
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<h2>Serpent-Twofish-AES</h2>
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<p>Three ciphers in a cascade [15, 16] operating in XTS mode (see the section <a href="Modes%20of%20Operation.html">
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<em>Modes of Operation</em></a>). Each 128-bit block is first encrypted with AES (256-bit key) in XTS mode, then with Twofish (256- bit key) in XTS mode, and finally with Serpent (256-bit key) in XTS mode. Each of the cascaded ciphers uses its own key. All
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encryption keys are mutually independent (note that header keys are independent too, even though they are derived from a single password – see the section
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<a href="Header Key Derivation.html"><em>Header Key Derivation, Salt, and Iteration Count</em></a>). See above for information on the individual cascaded ciphers.</p>
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<h2>Twofish-Serpent</h2>
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<p>Two ciphers in a cascade [15, 16] operating in XTS mode (see the section <a href="Modes%20of%20Operation.html">
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<em>Modes of Operation</em></a>). Each 128-bit block is first encrypted with Serpent (256-bit key) in XTS mode and then with Twofish (256-bit key) in XTS mode. Each of the cascaded ciphers uses its own key. All encryption keys are mutually independent (note
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that header keys are independent too, even though they are derived from a single password – see the section
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<a href="Header Key Derivation.html"><em>Header Key Derivation, Salt, and Iteration Count</em></a>). See above for information on the individual cascaded ciphers.</p>
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</div>
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</body></html>
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