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How to use the createVerify function from crypto

Find comprehensive JavaScript crypto.createVerify code examples handpicked from public code repositorys.

crypto.createVerify is a Node.js built-in module method that creates a Verify object used to verify the cryptographic signature of data.

jwt.js

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function verify(input, key, method, type, signature) {
  if(type === "hmac") {
    return (signature === sign(input, key, method, type));
  }
  else if(type == "sign") {
    return crypto.createVerify(method)
                 .update(input)
                 .verify(key, base64urlUnescape(signature), 'base64');
  }
  else {

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+ 7 other calls in file

lib.js

GitHub: WebauthnWorks/webauthn-cose

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    let ansiPublicKey = Buffer.concat([
        Buffer.from([0x04]), x, y
    ])

    let pemPublicKey  = rawPublicKeyToPEM(ansiPublicKey, crv);
    return crypto.createVerify(hashAlg)
        .update(messageBuffer)
        .verify(pemPublicKey, signatureBuffer);

// Verify RSA

+ 7 other calls in file

How does crypto.createVerify work?

crypto.createVerify is a method in Node.js's crypto module that creates a Verify object that can be used to verify the cryptographic signature of a piece of data using a public key. It takes an algorithm parameter and returns a Verify object with methods for updating the signature with data and verifying the signature against the public key.

signature.js

GitHub: ryzokuken/easy-crypto

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  message,
  signature,
  inputEncoding,
  signatureEncoding
) {
  const verifyFunc = crypto.createVerify(algorithm);
  verifyFunc.update(message, inputEncoding);
  verifyFunc.end();
  return verifyFunc.verify(publicKey, signature, signatureEncoding);
}

+ 3 other calls in file

LoginDemo.js

GitHub: adams549659584/kad-demo

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// 验签
const publicKeyStr = fs.readFileSync(path.join(__dirname, './keys/pub.key'), inputCharset);
console.log('publicKeyStr = ' + publicKeyStr);
console.log('');


const verifyRsa2Result = crypto.createVerify(signAlgorithm).update(waitForSignStr, inputCharset).verify(fillPublicKeyMarker(publicKeyStr), sign, 'base64');
console.log('verifyRsa2Result = ' + verifyRsa2Result);
console.log('');


// kad 登录链接

Ai Example

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const crypto = require("crypto");

const message = "hello world";
const privateKey = "..."; // The private key used to sign the message
const publicKey = "..."; // The public key used to verify the signature
const signature = "..."; // The digital signature created by signing the message with the private key

// Create a verifier object using the public key
const verifier = crypto.createVerify("SHA256");
verifier.update(message);

// Verify the signature using the verifier and the public key
const isSignatureValid = verifier.verify(publicKey, signature, "base64");

console.log(`Is the signature valid? ${isSignatureValid}`);

In this example, we create a verifier object using the crypto.createVerify method, passing the hashing algorithm as an argument. We then update the verifier object with the message to be verified using the update method. Finally, we verify the signature using the verify method, passing in the public key, the signature, and the encoding format as arguments. The verify method returns true if the signature is valid, false otherwise.

csob.js

GitHub: luckykiet/gastropay

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const verifySignature = (message, signature, testMode) => {
    try {
        const key = trimPemKey(testMode ? csobConfig.TEST_PRODUCTION_PUB : csobConfig.PRODUCTION_PUB);
        const publicKeyToVerify = crypto.createPublicKey(key);
        const verify = crypto.createVerify('RSA-SHA256');
        verify.update(message);
        return verify.verify(publicKeyToVerify, signature, 'base64');
    } catch (error) {
        console.log(error)

index.js

GitHub: AbrahamSalloum/activitypub-implementation

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    comarision_array.push(`${header_compare}: ${ header[header_compare]}`)
  }

}

const verifier = crypto.createVerify("sha256");
const comparethis = comarision_array.join('\n')
verifier.update(comparethis)
const result = verifier.verify(publicKey, signature, 'base64');

+ 4 other calls in file

test-crypto-sign-verify.js

GitHub: vladimir-andreevich/node.js-14-windows-7

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let s1stream = crypto.createSign('SHA1');
s1stream.end('Test123');
s1stream = s1stream.sign(keyPem, 'base64');
assert.strictEqual(s1, s1stream, `${s1} should equal ${s1stream}`);

const verified = crypto.createVerify('SHA1')
                       .update('Test')
                       .update('123')
                       .verify(certPem, s1, 'base64');
assert.strictEqual(verified, true);

+ 29 other calls in file

index.js

GitHub: RumanSanghera/Receipt-Scanner

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function createKeyVerifier(bits) {
  return function verify(thing, signature, publicKey) {
    checkIsPublicKey(publicKey);
    thing = normalizeInput(thing);
    signature = toBase64(signature);
    var verifier = crypto.createVerify('RSA-SHA' + bits);
    verifier.update(thing);
    return verifier.verify(publicKey, signature, 'base64');
  }
}

+ 3 other calls in file

api.js

GitHub: YuukiPS/Bot

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		)
	)
}

let result = Buffer.concat(res)
let verified = crypto.createVerify("RSA-SHA256").update(result).verify(pubKey, sign)

console.log("Verified signature =>", verified)

const root = await loadProto("./src/game/genshin/proto/schema.proto")

test-crypto-binary-default.js

GitHub: vladimir-andreevich/node.js-14-windows-7

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// Test signing and verifying
{
  const s1 = crypto.createSign('SHA1')
                 .update('Test123')
                 .sign(keyPem, 'base64');
  const s1Verified = crypto.createVerify('SHA1')
                         .update('Test')
                         .update('123')
                         .verify(certPem, s1, 'base64');
  assert.strictEqual(s1Verified, true);

+ 11 other calls in file

key.js

GitHub: NJUyd2001/2023_NJUspringE-

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	    'signing or verification'));

var v, nm, err;
try {
	nm = hashAlgo.toUpperCase();
	v = crypto.createVerify(nm);
} catch (e) {
	err = e;
}
if (v === undefined || (err instanceof Error &&

+ 3 other calls in file

test-crypto-rsa-dsa.js

GitHub: vladimir-andreevich/node.js-14-windows-7

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  }
}


// Test RSA key signing/verification
let rsaSign = crypto.createSign('SHA1');
let rsaVerify = crypto.createVerify('SHA1');
assert.ok(rsaSign);
assert.ok(rsaVerify);


const expectedSignature = fixtures.readKey(

+ 53 other calls in file

test-crypto-psychic-signatures.js

GitHub: Mike7323/Mike-s-construction

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  common.mustSucceed((verified) => assert.strictEqual(verified, false)),
);

// stream
assert.strictEqual(
  crypto.createVerify('sha256')
    .update(data)
    .verify(key, signature),
  false,
);

posts.js

GitHub: alexcarchiar/thesisWebApp

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    title: req.body.title,
    description: req.body.description,
    signature: signature
})

let verifier = crypto.createVerify(signing_algorithm)
verifier.update(req.body.title)
verifier.update(req.body.description)
verifier.end()
console.log(verifier.verify(public_key, signature, format_string))

crypto.markdown?plain=1

GitHub: kevinoid/node

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Example: Using `Verify` objects as streams:

```js
const crypto = require('crypto');
const verify = crypto.createVerify('rsa-sha256');

verify.write('some data to sign');
verify.end();

+ 3 other calls in file

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