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VeraCrypt/doc/html/en/Key Derivation Algorithms.html
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<title>VeraCrypt - Free Open source disk encryption with strong security for the Paranoid</title>
<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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<a href="Key%20Derivation%20Algorithms.html">Key Derivation Algorithms</a>
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<h1>Key Derivation Algorithms</h1>
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A key derivation function (KDF) transforms your password (and optional keyfiles) into cryptographic keys used to decrypt a VeraCrypt volume header. KDFs slow down brute-force attacks and protect against precomputation by incorporating a large random salt and a tunable work factor (e.g., iterations, memory).
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<h3>Available Algorithms in VeraCrypt</h3>
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<strong><a href="Argon2id.html" style="color:#0080c0; text-decoration:none">Argon2id</a>:</strong> A modern, memory-hard KDF (based on BLAKE2b internally). Recommended for new volumes. No separate hash selection is required.
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<strong><a href="PBKDF2.html" style="color:#0080c0; text-decoration:none">PBKDF2-HMAC</a>:</strong> A widely deployed KDF that uses HMAC with a selectable hash function. Supported HMAC hashes in VeraCrypt:
<a href="SHA-512.html" style="color:#0080c0; text-decoration:none">SHA-512</a>, <a href="SHA-256.html" style="color:#0080c0; text-decoration:none">SHA-256</a>, <a href="Whirlpool.html" style="color:#0080c0; text-decoration:none">Whirlpool</a>, <a href="BLAKE2s-256.html" style="color:#0080c0; text-decoration:none">BLAKE2s-256</a>, and <a href="Streebog.html" style="color:#0080c0; text-decoration:none">Streebog</a>.
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