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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `bytes_to_key` fn in crate `openssl`."><meta name="keywords" content="rust, rustlang, rust-lang, bytes_to_key"><title>openssl::pkcs5::bytes_to_key - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
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<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Function <a href="../index.html">openssl</a>::<wbr><a href="index.html">pkcs5</a>::<wbr><a class="fn" href="">bytes_to_key</a></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/openssl/pkcs5.rs.html#26-80" title="goto source code">[src]</a></span></h1><pre class="rust fn">pub fn bytes_to_key(<br> cipher: <a class="struct" href="../../openssl/symm/struct.Cipher.html" title="struct openssl::symm::Cipher">Cipher</a>, <br> digest: <a class="struct" href="../../openssl/hash/struct.MessageDigest.html" title="struct openssl::hash::MessageDigest">MessageDigest</a>, <br> data: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>, <br> salt: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>>, <br> count: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a><br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="struct" href="../../openssl/pkcs5/struct.KeyIvPair.html" title="struct openssl::pkcs5::KeyIvPair">KeyIvPair</a>, <a class="struct" href="../../openssl/error/struct.ErrorStack.html" title="struct openssl::error::ErrorStack">ErrorStack</a>></pre><div class="docblock"><p>Derives a key and an IV from various parameters.</p>
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<p>If specified, <code>salt</code> must be 8 bytes in length.</p>
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<p>If the total key and IV length is less than 16 bytes and MD5 is used then
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the algorithm is compatible with the key derivation algorithm from PKCS#5
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v1.5 or PBKDF1 from PKCS#5 v2.0.</p>
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<p>New applications should not use this and instead use
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<code>pbkdf2_hmac</code> or another more modern key derivation algorithm.</p>
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