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sha1.html
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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>SHA-1 Hash Generator and Verifier Tool</title>
<meta
name="description"
content="A secure SHA-1 hash generator and verifier tool to enhance data protection. Generate and verify SHA-1 hashes for your passwords and sensitive data online."
/>
<meta
name="keywords"
content="sha1, hash generator, hash verifier, data encryption, secure passwords, sha1 hashing"
/>
<link rel="canonical" href="https://bcrypt-tools.vercel.app/sha1" />
<!-- 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/sha1" />
<meta property="og:type" content="website" />
<meta
property="og:title"
content="SHA-1 Hash Generator and Verifier Tool"
/>
<meta
property="og:description"
content="Securely generate and verify SHA-1 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/sha1"
/>
<meta
name="twitter:title"
content="SHA-1 Hash Generator and Verifier Tool"
/>
<meta
name="twitter:description"
content="Securely generate and verify SHA-1 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>
<!-- crypto-api -->
<script
src="https://nf404.github.io/crypto-api/crypto-api.min.js"
async
crossorigin="anonymous"
></script>
<script>
const onSubmitGenerateHash = (event) => {
const dataInput = document.getElementById("input-text");
if (dataInput.value.trim() === "") {
showAlert("All fields are required!");
return;
}
const data = dataInput.value;
const hash = CryptoApi.hash("sha1", data);
document.getElementById("hash-output").value = hash;
document
.getElementById("hash-output")
.parentElement.classList.remove("hidden");
};
const onSubmitCompareHash = (event) => {
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 computedHash = CryptoApi.hash("sha1", data);
const isMatch = computedHash === hash;
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 - SHA-1 Hash Generator and Verifier Tool
</h1>
</a>
<p class="text-gray-600 text-center">
Easily generate and verify SHA-1 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">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 active"
>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 SHA-1 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
/>
<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 SHA-1 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-sha1"
class="flex flex-col bg-white border rounded-md p-4 gap-2"
>
<h3 class="text-lg font-semibold">What is SHA-1?</h3>
<p class="text-base text-gray-700">
SHA-1 (Secure Hash Algorithm 1) is a cryptographic hash function
that generates a 160-bit (20-byte) hash value, commonly rendered as
a 40-digit hexadecimal number.
</p>
</section>
<section id="security-of-sha1" class="bg-white border rounded-md p-4">
<h3 class="text-lg font-semibold mb-2">Is SHA-1 Secure?</h3>
<p class="text-base text-gray-700 mb-4">
SHA-1 is considered broken for many cryptographic purposes and is no
longer recommended for secure applications. Stronger algorithms like
SHA-256 or SHA-512 are advised for secure cryptographic operations.
</p>
</section>
<section
id="hash-details"
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">
SHA-1 produces a 160-bit hash value, which is typically rendered as
a 40-character hexadecimal string.
</p>
<ul class="list-disc pl-5 text-base text-gray-700 mb-2">
<li>
<strong>Length:</strong> 40 hexadecimal characters (160 bits)
</li>
<li>
<strong>Speed:</strong> SHA-1 is designed to be computationally
efficient, though its security has been compromised in recent
years.
</li>
</ul>
<p class="text-base text-gray-700 mb-2">
<strong>Example:</strong> Consider the SHA-1 hash
<code>a9993e364706816aba3e25717850c26c9cd0d89d</code>. This hash
consists of 160 bits represented as 40 hexadecimal characters.
</p>
</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>
<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://en.wikipedia.org/wiki/SHA-1"
target="_blank"
rel="external noopener noreferrer"
aria-label="Wikipedia page for SHA-1 - External link"
class="text-blue-600 hover:text-blue-800 hover:underline"
>
Wikipedia: SHA-1
</a>
</div>
<div class="p-4 border rounded bg-white">
<a
href="https://csrc.nist.gov/publications/detail/fips/180/2/final"
target="_blank"
rel="external noopener noreferrer"
aria-label="NIST SHA-1 Specification - External link"
class="text-blue-600 hover:text-blue-800 hover:underline"
>
NIST SHA-1 Specification
</a>
</div>
</div>
</section>
</main>
<footer class="bg-gray-800 text-white p-4 mt-8">
<div
class="flex flex-col sm:flex-row max-w-6xl mx-auto flex flex-wrap justify-between items-center"
>
<div class="p-2 order-2 sm:order-first">
© 2025
<a
href="/"
class="text-white hover:text-gray-400"
rel="noopener noreferrer"
>Bcrypt.tools</a
>. All rights reserved.
</div>
<div class="p-2">
Email:
<a
href="mailto:[email protected]"
class="text-white hover:text-gray-400"
rel="noopener noreferrer"
>
</div>
<div class="p-2">
<a
href="/privacy-policy"
class="text-white hover:text-gray-400"
rel="noopener noreferrer"
>Privacy Policy</a
>
|
<a
href="/terms-of-use"
class="text-white hover:text-gray-400"
rel="noopener noreferrer"
>Terms of Use</a
>
</div>
<form
method="POST"
action="https://mainnet.demo.btcpayserver.org/api/v1/invoices"
class="flex flex-col items-center justify-center p-2 order-first sm:order-last"
target="_blank"
rel="external noopener noreferrer"
>
<input
type="hidden"
name="storeId"
value="AAf9d69FnaNp1E5HxQjRT41Pqv9bc8aoBkFtcxvpEvrH"
/>
<input
type="hidden"
name="browserRedirect"
value="https://bcrypt-tools.vercel.app/thank-you"
/>
<input
type="hidden"
name="notifyEmail"
value="[email protected]"
/>
<input type="hidden" name="currency" value="BTC" />
<button
type="submit"
name="submit"
class="flex items-center bg-grey-800 text-white outline outline-1 font-semibold py-2 px-4 rounded inline-flex"
>
Donate with Bitcoin
</button>
</form>
</div>
</footer>
<style>
.input {
width: 100%;
padding: 0.5rem;
margin-bottom: 1rem;
border: 1px solid #ddd;
border-radius: 0.375rem;
box-shadow: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);
}
.button {
padding: 0.5rem 1rem;
border-radius: 0.375rem;
font-weight: 600;
text-align: center;
cursor: pointer;
transition: all 0.3s ease;
}
.button-solid {
background-color: #4f46e5;
color: white;
border: 2px solid transparent;
}
.button-outline {
background-color: transparent;
color: #4f46e5;
border: 2px solid #4f46e5;
}
.button-outline:hover {
background-color: #4f46e5;
color: white;
}
.result {
padding: 0.5rem;
border-radius: 0.375rem;
margin-top: 1rem;
border-width: 1px;
}
.active {
font-weight: bold;
text-decoration: underline;
}
code {
padding: 0.25rem;
border-radius: 0.25rem;
word-break: break-all;
background-color: #f3f4f6;
}
</style>
</body>
</html>