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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" />
<title>Bcrypt Hash Generator and Verifier Tool</title>
<meta
name="description"
content="A secure bcrypt hash generator and verifier tool to enhance data protection. Generate and verify bcrypt hashes for your passwords and sensitive data online."
/>
<meta
name="keywords"
content="bcrypt, hash generator, hash verifier, data encryption, secure passwords, bcrypt hashing"
/>
<link rel="canonical" href="https://bcrypt-tools.vercel.app" />
<!-- Favicon -->
<link
rel="apple-touch-icon"
sizes="180x180"
href="/images/favicon/apple-touch-icon.png"
/>
<link
rel="icon"
type="image/png"
sizes="32x32"
href="/images/favicon/favicon-32x32.png"
/>
<link
rel="icon"
type="image/png"
sizes="16x16"
href="/images/favicon/favicon-16x16.png"
/>
<link rel="manifest" href="/site.webmanifest" />
<link
rel="mask-icon"
href="/images/favicon/safari-pinned-tab.svg"
color="#5bbad5"
/>
<link rel="shortcut icon" href="/images/favicon/favicon.ico" />
<meta name="msapplication-TileColor" content="#ffffff" />
<meta name="msapplication-config" content="/browserconfig.xml" />
<meta name="theme-color" content="#ffffff" />
<!-- Facebook Meta Tags -->
<meta property="og:url" content="https://bcrypt-tools.vercel.app/" />
<meta property="og:type" content="website" />
<meta
property="og:title"
content="Bcrypt Hash Generator and Verifier Tool"
/>
<meta
property="og:description"
content="Securely generate and verify bcrypt hashes online."
/>
<meta
property="og:image"
content="https://bcrypt-tools.vercel.app/images/social.png"
/>
<meta
property="og:image:alt"
content="An image featuring the text 'bcrypt.tools' in white on a blue background."
/>
<!-- Google Meta Tags -->
<meta name="google-adsense-account" content="ca-pub-7390955753222656" />
<script
async
src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-7390955753222656"
crossorigin="anonymous"
></script>
<!-- Google tag (gtag.js) -->
<script
async
src="https://www.googletagmanager.com/gtag/js?id=G-NW49JN804Q"
></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag() {
dataLayer.push(arguments);
}
gtag("js", new Date());
gtag("config", "G-NW49JN804Q");
</script>
<!-- Twitter Meta Tags -->
<meta name="twitter:card" content="summary_large_image" />
<meta property="twitter:url" content="https://bcrypt-tools.vercel.app/" />
<meta
name="twitter:title"
content="Bcrypt Hash Generator and Verifier Tool"
/>
<meta
name="twitter:description"
content="Securely generate and verify bcrypt hashes online."
/>
<meta
name="twitter:image"
content="https://bcrypt-tools.vercel.app/images/social.png"
/>
<meta
property="twitter:image:alt"
content="An image featuring the text 'bcrypt.tools' in white on a blue background."
/>
<!-- Tailwind CSS -->
<script src="https://cdn.tailwindcss.com"></script>
<!-- Bcrypt -->
<script
src="https://cdnjs.cloudflare.com/ajax/libs/bcryptjs/2.4.3/bcrypt.min.js"
async
crossorigin="anonymous"
></script>
<script>
const onSubmitGenerateHash = (event) => {
let bcrypt = dcodeIO.bcrypt;
const dataInput = document.getElementById("input-text");
const saltInput = document.getElementById("salt-count");
if (dataInput.value.trim() === "") {
showAlert("All fields are required!");
return;
}
const data = dataInput.value;
const salts = saltInput.value || 10;
const salt = bcrypt.genSaltSync(parseInt(salts));
const hash = bcrypt.hashSync(data, salt);
document.getElementById("hash-output").value = hash;
document
.getElementById("hash-output")
.parentElement.classList.remove("hidden");
};
const onSubmitCompareHash = (event) => {
let bcrypt = dcodeIO.bcrypt;
const data = document.getElementById("data-to-compare").value;
const hash = document.getElementById("hash-to-compare").value;
if (data.trim() === "" || hash.trim() === "") {
showAlert("All fields are required for comparison!");
return;
}
const isMatch = bcrypt.compareSync(data, hash);
document.getElementById("compare-hash-result").textContent = isMatch
? "Match"
: "Do not match";
const resultElement = document.getElementById("compare-hash-result");
resultElement.textContent = isMatch ? "Match" : "Do not match";
resultElement.classList.remove(
"bg-green-100",
"text-green-800",
"bg-red-100",
"text-red-800",
"border-green-400",
"border-red-400"
);
if (isMatch) {
resultElement.classList.add(
"bg-green-100",
"text-green-800",
"border-green-400"
);
} else {
resultElement.classList.add(
"bg-red-100",
"text-red-800",
"border-red-400"
);
}
resultElement.style.display = "block";
};
const copyToClipboard = () => {
const hashOutput = document.getElementById("hash-output");
navigator.clipboard
.writeText(hashOutput.value)
.then(() => showAlert("Hash copied to clipboard!"))
.catch((err) => console.error("Error copying to clipboard", err));
};
const pasteFromClipboard = () => {
navigator.clipboard
.readText()
.then((text) => {
const hashToCompareInput =
document.getElementById("hash-to-compare");
hashToCompareInput.value = text;
showAlert("Text pasted into the input!");
})
.catch((err) => {
console.error("Error pasting text from clipboard", err);
});
};
const showAlert = (message) => {
let existingAlert = document.querySelector(".alert-container");
if (existingAlert) {
existingAlert.remove();
}
const alertContainer = document.createElement("div");
alertContainer.textContent = message;
alertContainer.classList.add(
"alert-container",
"absolute",
"top-5",
"left-1/2",
"-translate-x-1/2",
"bg-blue-500",
"text-white",
"px-4",
"py-2",
"rounded",
"shadow-lg",
"transition-opacity",
"opacity-100"
);
document.body.appendChild(alertContainer);
setTimeout(() => {
alertContainer.classList.replace("opacity-100", "opacity-0");
}, 2500);
setTimeout(() => {
alertContainer.remove();
}, 3000);
};
const resetFirstForm = () => {
document.getElementById("generate-hash-form").reset();
document
.getElementById("hash-output")
.parentElement.classList.add("hidden");
};
const resetSecondForm = () => {
document.getElementById("compare-hash-form").reset();
document.getElementById("compare-hash-result").style.display = "none";
};
</script>
</head>
<body class="flex flex-col w-full bg-gray-100">
<div id="alert-container" class="hidden"></div>
<div
id="banner"
class="bg-blue-100 text-blue-800 border-b border-blue-300 py-2 text-sm"
>
<div class="container mx-auto text-center px-4">
<p>
<strong>Important Notice:</strong> This website's domain
<a
href="https://bcrypt.tools"
class="text-blue-600 underline hover:text-blue-800 font-semibold"
target="_blank"
>bcrypt.tools</a
>
will expire on <span class="font-semibold">February 19, 2025</span>.
We are migrating to our new domain:
<a
href="https://bcrypt-tools.vercel.app"
class="text-blue-600 underline hover:text-blue-800 font-semibold"
target="_blank"
>
bcrypt-tools.vercel.app
</a>
</p>
</div>
</div>
<header class="bg-white p-4">
<a href="/" class="hover:underline">
<h1 class="text-2xl font-bold text-center mb-2">
Bcrypt.tools - Bcrypt Hash Generator and Verifier Tool
</h1>
</a>
<p class="text-gray-600 text-center">
Easily generate and verify bcrypt hashes for your passwords and
sensitive data online.
</p>
<nav class="mt-4">
<ul class="flex flex-wrap justify-center space-x-4">
<li>
<a href="/" class="text-blue-500 hover:text-blue-700 active"
>Bcrypt</a
>
</li>
<li>
<a href="/md4" class="text-blue-500 hover:text-blue-700">MD4</a>
</li>
<li>
<a href="/md5" class="text-blue-500 hover:text-blue-700">MD5</a>
</li>
<li>
<a href="/sha1" class="text-blue-500 hover:text-blue-700">SHA-1</a>
</li>
<li>
<a href="/sha256" class="text-blue-500 hover:text-blue-700"
>SHA-256</a
>
</li>
<li>
<a href="/sha512" class="text-blue-500 hover:text-blue-700"
>SHA-512</a
>
</li>
<li>
<a href="/pbkdf2" class="text-blue-500 hover:text-blue-700"
>PBKDF2</a
>
</li>
<li>
<a href="/argon2" class="text-blue-500 hover:text-blue-700"
>Argon2</a
>
</li>
<li>
<a href="/crc32" class="text-blue-500 hover:text-blue-700">CRC32</a>
</li>
<li>
<a href="/hmac" class="text-blue-500 hover:text-blue-700">HMAC</a>
</li>
</ul>
</nav>
</header>
<main class="mx-auto max-w-4xl p-4 flex flex-col gap-4">
<section id="hash-generator" class="bg-white border rounded-md p-4">
<h2 class="text-xl font-semibold mb-2">Encrypt</h2>
<p class="text-base mb-4 text-gray-700">
Generate a secure bcrypt hash from any plaintext for enhanced password
protection.
</p>
<form
id="generate-hash-form"
onsubmit="event.preventDefault(); onSubmitGenerateHash();"
class="mb-6"
>
<input
type="text"
id="input-text"
name="plaintext"
placeholder="Plain Text"
class="input"
required
/>
<input
type="number"
id="salt-count"
name="salts"
placeholder="Salt Rounds (default 10)"
class="input"
min="1"
max="20"
value="10"
/>
<div class="flex flex-col sm:flex-row justify-between gap-2">
<button type="submit" class="button button-solid">
Generate Hash
</button>
<button
type="button"
class="button button-solid"
onclick="resetFirstForm()"
>
Reset
</button>
</div>
</form>
<div class="flex items-center gap-2 hidden mb-4">
<input
type="text"
id="hash-output"
class="input flex-1"
style="margin-bottom: 0px"
readonly
/>
<button onclick="copyToClipboard()" class="button button-outline">
Copy
</button>
</div>
<h2 class="text-xl font-semibold mb-2">Verify</h2>
<p class="text-base mb-4 text-gray-700">
Verify if a plaintext matches a specific bcrypt hash, ensuring secure
login validation.
</p>
<form
id="compare-hash-form"
onsubmit="event.preventDefault(); onSubmitCompareHash();"
>
<input
type="text"
id="data-to-compare"
name="data-to-compare"
placeholder="Plain Text"
class="input"
required
/>
<div class="flex items-center gap-2 mb-4">
<input
type="text"
id="hash-to-compare"
name="hash-to-compare"
placeholder="Hash"
class="input"
style="margin-bottom: 0px"
required
/>
<button
type="button"
onclick="pasteFromClipboard()"
class="button button-outline"
>
Paste
</button>
</div>
<div class="flex flex-col sm:flex-row justify-between gap-2">
<button type="submit" class="button button-solid">
Verify Hash
</button>
<button
type="button"
class="button button-solid"
onclick="resetSecondForm()"
>
Reset
</button>
</div>
</form>
<div
id="compare-hash-result"
class="result"
style="display: none"
></div>
</section>
<section id="faq" class="flex flex-col gap-4">
<h2 class="text-xl font-semibold">FAQ - Frequently Asked Questions</h2>
<section
id="about-bcrypt"
class="flex flex-col bg-white border rounded-md p-4 gap-2"
>
<h3 class="text-lg font-semibold">Why Bcrypt?</h3>
<p class="text-base text-gray-700">
Bcrypt is a password-hashing function designed to build a
cryptographic hash of your data, turning plain text into a secure
string that protects against hacking. This tool helps you easily
generate and verify bcrypt hashes for your passwords and sensitive
information, enhancing your data's security.
</p>
<p class="text-base text-gray-700">
Utilizing a salt to prevent rainbow table attacks and employing a
work factor to adjust the difficulty of hash calculations, bcrypt
offers a robust solution for securing user credentials and other
sensitive data.
</p>
</section>
<section id="insights-on-rounds" class="bg-white border rounded-md p-4">
<h3 class="text-lg font-semibold mb-2">Insights on Hashing Rounds</h3>
<p class="text-base text-gray-700 mb-4">
Key considerations about computational cost: When hashing your data,
the algorithm performs multiple iterations, or "rounds," to produce
a secure hash. The number you input does not directly correspond to
the iterations, but rather, the algorithm executes
<code>2^rounds</code> hashing iterations based on this value.
</p>
<p class="text-base text-gray-700 mb-4">
As per
<strong
><a
href="https://github.com/garthk"
class="text-blue-600 hover:text-blue-800"
rel="external noopener noreferrer"
target="_blank"
>@garthk</a
></strong
>, on a 2GHz core, you can approximately expect:
</p>
<div class="bg-gray-100 p-4 rounded-lg">
<p><code>rounds=8</code>: ~40 hashes/sec</p>
<p><code>rounds=9</code>: ~20 hashes/sec</p>
<p><code>rounds=10</code>: ~10 hashes/sec</p>
<p><code>rounds=11</code>: ~5 hashes/sec</p>
<p><code>rounds=12</code>: 2-3 hashes/sec</p>
<p><code>rounds=13</code>: ~1 hash/sec</p>
<p><code>rounds=14</code>: ~1.5 hash/sec</p>
<p><code>rounds=15</code>: ~3 hashes/sec</p>
<p><code>rounds=25</code>: ~1 hour/hash</p>
<p><code>rounds=31</code>: 2-3 days/hash</p>
</div>
</section>
<section
id="hash-info"
class="flex flex-col bg-white border rounded-md p-4 gap-2"
>
<h3 class="text-xl font-semibold">Hash Details</h3>
<p class="text-base text-gray-700 mb-2">
The final hash consists of characters from this set:
<br /><code
>./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789$</code
><br />Each generated hash will have a length of 60 characters,
embedding the salt and additional parameters in the format:
</p>
<p class="text-base text-gray-700 mb-2">
<code>$[algorithm]$[cost]$[salt][hash]</code>
</p>
<ul class="list-disc pl-5 text-base text-gray-700 mb-2">
<li>
The prefix, like <code>"$2a$"</code> or <code>"$2b$"</code>,
denotes BCrypt.
</li>
<li>
The cost factor (<code>n</code>) indicates the number of
iterations, 2^n.
</li>
<li>
A 16-byte (128-bit) salt, converted to 22 characters when base64
encoded.
</li>
<li>
A 24-byte (192-bit) hash, resulting in 31 characters once base64
encoded.
</li>
</ul>
<p class="text-base text-gray-700 mb-2">
<strong>Example Explained:</strong> Consider the BCrypt hash
<code
>$2b$10$nOUIs5kJ7naTuTFkBy1veuK0kSxUFXfuaOKdOKf9xYT0KKIGSJwFa</code
>. This hash is structured as follows:
</p>
<ul class="list-disc pl-5 text-base text-gray-700">
<li>
<strong>Hash-algorithm identifier:</strong>
<code>$2b$</code> (denotes BCrypt)
</li>
<li>
<strong>Cost-factor:</strong> <code>10</code> (equivalent to
<code>2^10</code> iterations)
</li>
<li><strong>Salt:</strong> <code>nOUIs5kJ7naTuTFkBy1veu</code></li>
<li>
<strong>Hash-value:</strong>
<code>K0kSxUFXfuaOKdOKf9xYT0KKIGSJwFa</code>
</li>
</ul>
</section>
<section
id="password-hashing"
class="flex flex-col bg-white border rounded-md p-4 gap-2"
>
<h3 class="text-lg font-semibold">What is Password Hashing?</h3>
<p class="text-base text-gray-700">
Password hashing is a security technique used to transform a
password into a fixed-size string of characters, which is designed
to be impossible to reverse. It helps protect the password's
original text while verifying user credentials without storing the
actual password.
</p>
</section>
<section
id="hasing-competition"
class="flex flex-col bg-white border rounded-md p-4 gap-2"
>
<h3 class="text-lg font-semibold">
What is Password Hashing Competition?
</h3>
<p class="text-base text-gray-700">
The Password Hashing Competition (PHC) was a project aimed at
identifying new, secure, and efficient password hashing schemes to
improve password storage security. It encouraged the development and
review of hashing algorithms to withstand advances in hacking
techniques.
</p>
</section>
</section>
<section id="resources" class="flex flex-col gap-4">
<h2 class="text-xl font-semibold">Relevant Links</h2>
<div class="grid grid-cols-2 gap-4">
<div class="p-4 border rounded bg-white">
<a
href="https://codahale.com/how-to-safely-store-a-password/"
target="_blank"
rel="external noopener noreferrer"
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