Salma  Mateos

Salma Mateos

1615608780

Passwords & Hash Functions (Simply Explained)

How can companies store passwords safely and keep them away from hackers? Well let’s find out!

With all the data breaches lately, it’s likely that the password of one of your accounts has been compromised. Hackers now might know the password you’ve used, but they also might not… To understand why, we’ll take a look at what methods a company can use to protect user passwords. We’ll take a look at encryption, hash functions and a multilayer approach!

Subscribe: https://www.youtube.com/channel/UCnxrdFPXJMeHru_b4Q_vTPQ

#passwords #web-development

What is GEEK

Buddha Community

Passwords & Hash Functions (Simply Explained)
Vincent Lab

Vincent Lab

1605017502

The Difference Between Regular Functions and Arrow Functions in JavaScript

Other then the syntactical differences. The main difference is the way the this keyword behaves? In an arrow function, the this keyword remains the same throughout the life-cycle of the function and is always bound to the value of this in the closest non-arrow parent function. Arrow functions can never be constructor functions so they can never be invoked with the new keyword. And they can never have duplicate named parameters like a regular function not using strict mode.

Here are a few code examples to show you some of the differences
this.name = "Bob";

const person = {
name: “Jon”,

<span style="color: #008000">// Regular function</span>
func1: <span style="color: #0000ff">function</span> () {
    console.log(<span style="color: #0000ff">this</span>);
},

<span style="color: #008000">// Arrow function</span>
func2: () =&gt; {
    console.log(<span style="color: #0000ff">this</span>);
}

}

person.func1(); // Call the Regular function
// Output: {name:“Jon”, func1:[Function: func1], func2:[Function: func2]}

person.func2(); // Call the Arrow function
// Output: {name:“Bob”}

The new keyword with an arrow function
const person = (name) => console.log("Your name is " + name);
const bob = new person("Bob");
// Uncaught TypeError: person is not a constructor

If you want to see a visual presentation on the differences, then you can see the video below:

#arrow functions #javascript #regular functions #arrow functions vs normal functions #difference between functions and arrow functions

Vincent Lab

Vincent Lab

1605178915

Hashing passwords in Node.js

In this video I will be showing you how to hash passwords using bcrypt in Node.js

#bcrypt #hashing #passwords in node.js #node.js #beginners #password hashing

Ethen Ellen

1616393382

Thumbs Up To New Trick of Reset Verizon Email Password

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Verizon Email is one of the most trusted email services in the entire world. It is installed with more security features and optional email services such as AOL, Outlook, Gmail or Yahoo Email. If you want to use your Verizon email account, first of all, you have to create an account. After that, you will login to your account with your username and password. Through these identities, you can access your Verizon account and enjoy all other activities provided by Verizon email.

But sometimes, If your Verizon account is hacked or blocked by someone else, you can easily login to your email account by resetting your Verizon email password. If you do not understand how to Reset Verizon Email Password. Then, you can contact Verizon Email Support Expert via a toll-free number (888-857-5157). Our experienced professionals can fix any type of issue in a few minutes.

Solutions to Reset Verizon Mail Password (Known Password)

If you remember your current password then you have to continue to process it. As well as known your login details you can follow the steps below to reset verizon mail password.

Step 1: First of all, you need to open your browser and log in to your Verizon email account.

Step 2: In the next step, you have to navigate to Account Settings from the main menu.

Step 3: After that, you have to open security settings and choose “Change Password”.

Step 4: Input your current password in the field provided.

Step 5: Finally, you will click on the next field and type in a new password for your Verizon mail account.

Once you are confirmed that your password has changed, you can close the browser and log in to your mail account using your new Verizon email password.

Solution to reset the Verizon Mail password (Forgot password)

If you need to reset your password because you do not remember your current mail password, the steps will vary as you will have to verify your identity before changing the password, you will have to reset your Verizon mail password. You can use the ‘Forgot Password’ option:

Step 1: First of all, you will go to the Verizon Mail website and click on ‘Forgot Password’.

Step 2: After that, input your username and choose the recovery method (Mail / Phone).

Step 3: Input on the mobile number associated with your Verizon mail account.

Step 4: Press ‘Yes’ to allow Verizon to send you a verification code.

Step 5: You will type a security verification code in the field provided.

Step 6: Then, press ‘Submit’ and wait for Verizon to confirm the code.

Step 7: In the last, create a new password for your Verizon account by completing the instructions on the screen.

If you encounter any problems while resetting a Verizon email password, you can call a Verizon Email Support Number (888-857-5157) and seek advice from a certified expert to resolve the issue. Experts from Verizon are available 24 * 7 hours, which will help you to fix any problems encountered using Verizon’s email account.

Source: https://sites.google.com/view/verizon-key-settings

#change verizon email password #reset verizon email password #change verizon mail password #reset verizon mail password #change verizon password #reset verizon password

Salma  Mateos

Salma Mateos

1615608780

Passwords & Hash Functions (Simply Explained)

How can companies store passwords safely and keep them away from hackers? Well let’s find out!

With all the data breaches lately, it’s likely that the password of one of your accounts has been compromised. Hackers now might know the password you’ve used, but they also might not… To understand why, we’ll take a look at what methods a company can use to protect user passwords. We’ll take a look at encryption, hash functions and a multilayer approach!

Subscribe: https://www.youtube.com/channel/UCnxrdFPXJMeHru_b4Q_vTPQ

#passwords #web-development

Nat  Kutch

Nat Kutch

1596976800

Why Should the Length of Your Hash Table Be a Prime Number?

Every thorough data structures and algorithms course will cover the hash table data structure and, by extension, hash functions. In reviewing data structures recently, I came across the notion of reducing collisions by making the length of your hash table a prime number. Due to the limited scope of the course, the author did not go into much detail as to why this works and encouraged some self-research if so inclined. It turns out I am so inclined and I wanted to get to the bottom of this seemingly magic fix. To provide a little context, we will first briefly go over hash tables, hash functions, what qualities make a good hash function, and finally how a hash table of prime number length reduces collisions.

Hash Tables

With most languages featuring a built-in version of a hash table, they are an extremely useful and common data structure. They are known as dictionaries in Python, objects in JavaScript, Maps in Java, Go, and Scala, and hashes in Ruby. Hash tables are primarily used to store data in key-value pairs. With the ability to quickly locate data using its associated key, hash tables are an excellent option for data access, insertion, and removal. This is a marked improvement over arrays that, while providing quick access using indices, can have costly time complexities when adding and removing elements.

In most cases, utilizing a language’s built-in hash function is probably the best option, however, they can be modeled from scratch using an array. In this case, we would provide the key corresponding to the data we wish to access. This key must be transformed into an index where the key-value pair is stored and then using the index the desired data is returned. This is where hash functions come in to play.

hash functions

In general, hash functions take an input of any size and return an output of a fixed size; it could be a short string or an integer. These functions are ‘one-way’ meaning we cannot construct the original input by working backward from the output. As a result, hash functions are often used in cryptography.

To illustrate, let’s say we are using a has table to store data relating to a collection of books with keys corresponding to the books’ ISBNs and the values of the books’ title. Our hash function would take the ISBN as an argument and return an index in which the data related to that ISBN could be found. Using this index we can look up and return the book title.

#algorithms #data-structures #hash-table #javascript #hash-function #function