Sha512 custom password specifying iterations?

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1

Like the example in this thread entitled Importing users with custom password hash

const getHash = (string) => crypto
  .createHash('sha256')
  .update(string)
  .digest('hex');

    const passwordPlain = 'hello'
    const salt = '1234'
    let passwordToHash = salt + passwordPlain

    for (let i = 0; i < 100; i++) {
      passwordToHash = getHash(passwordToHash);
    }
    console.log(passwordToHash)
// 35e7f5fc530c66ee830fd7d53f8d489b467a3edd81fbd2412947897d6bef12c0

Wouldn’t you need to specify 100 iterations when importing? I don’t see in the docs or this example import from the docs where you could specify the number of hash iterations.

{
        "email": "mary@contoso.com",
        "email_verified": false,
        "custom_password_hash": {
            "algorithm": "sha256",
            "hash": {
                "value": "d24e794fce503c3ddb1cd1ba1dd5d9b250cf9917336a0316fefd87fecf79200f",
                "encoding": "hex"
            },
            "salt": {
                "value": "abc123",
                "position": "prefix"
            }
        }
    },
2

Hi @gcorey

Welcome to the Auth0 Community!

Based on this Knowledge Article → Importing password hash made by PHP fails, Auth0 only accepts the password hashes that were passed through the Algorithm, like SHA256, only once, not looped multiple times.

Thanks!
Dawid