How to use the createDecipher function from crypto

important.md?plain=1

GitHub: learning-zone/nodejs-basics

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* Decryption example using Decipher

```js
const crypto = require('crypto');  
const decipher = crypto.createDecipher('aes192', 'a password');  

const encrypted = '4ce3b761d58398aed30d5af898a0656a3174d9c7d7502e781e83cf6b9fb836d5';  
const decrypted = decipher.update(encrypted, 'hex', 'utf8');  
decrypted += decipher.final('utf8');  

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+ 3 other calls in file

test-crypto-authenticated.js

GitHub: nwjs/node

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  }
}

if (test.password) {
  if (common.hasFipsCrypto) {
    assert.throws(() => { crypto.createDecipher(test.algo, test.password); },
                  errMessages.FIPS);
  } else {
    const decrypt = crypto.createDecipher(test.algo, test.password, options);
    decrypt.setAuthTag(Buffer.from(test.tag, 'hex'));

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utils.js

GitHub: node-honeycomb/honeycomb-server

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  var decipher = crypto.createDecipheriv('aes-256-cbc', key, iv);
  decipher.setAutoPadding(true);
  return decipher.update(data, 'base64', 'utf8') + decipher.final('utf8');
};
exports.decryptOld = function (data, key) {
  var decipher = crypto.createDecipher('aes-256-cbc', key);
  decipher.setAutoPadding(true);
  return decipher.update(data, 'base64', 'utf8') + decipher.final('utf8');
};

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+ 2 other calls in file

crypt.js

GitHub: truemrwalker/wblwrld3

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 * @param {string} seed - A seed to use for the symmetric decryption.
 * @returns {string} The plaintext representation of the given encrypted text.
 */
module.exports.decryptTextSync = function (cryptText, seed) {
    try {
        var decipher = crypto.createDecipher('aes-128-cbc', seed);
        var dec = decipher.update(cryptText, 'hex', 'utf8');
        dec += decipher.final('utf8');
        return dec;
    } catch(err) {

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test-crypto-binary-default.js

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

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// to a ciphertext which will be in hex
let ciph = cipher.update(plaintext, 'utf8', 'hex');
// Only use binary or hex, not base64.
ciph += cipher.final('hex');

const decipher = crypto.createDecipher('aes192', key);
let txt = decipher.update(ciph, 'hex', 'utf8');
txt += decipher.final('utf8');

assert.strictEqual(txt, plaintext);

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index.js

GitHub: musmanamjad1/AI_GPT_React

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exports.listCiphers = exports.getCiphers = crypto.getCiphers

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crypto.markdown?plain=1

GitHub: kevinoid/node

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  cipher algorithms to use or exclude.

If no 'ca' details are given, Node.js will use Mozilla's default
[publicly trusted list of CAs][].

### crypto.createDecipher(algorithm, password)

Creates and returns a `Decipher` object that uses the given `algorithm` and
`password` (key).

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