How to Protect Your Bitcoins and Altcoins From Theft with a Private Key and Public Key

Published 31 Aug 2021 by Radhika Aggarwal

Table of Content

  1. What are the public key and private key?
  2. What are the public key and private key used for?
  3. Difference Between Private Key and Public Key
  4. Why are Private Keys Important?
  5. A Place to Store your Private Keys
  6. Digital wallets
  7. What are the common examples of Public-Private Key?
  8. Conclusion

A private key is a sophisticated form of cryptography that allows a user to access their cryptocurrency. A private key is an integral aspect of bitcoin and altcoins, and its security makeup helps protect a user from theft and unauthorized access to funds. Private keys cryptography can be generated through various methods depending on what type of wallet you’re using, but what’s essential for this article is that if your private keys become compromised, you may not have any way to recover your coins. The best way to avoid this? Store it in what’s called cold storage - which means storing it offline on something like hardware or paper wallets!

People use cryptocurrencies to make transactions all over the world without high transaction fees or a long wait. When you first purchase cryptocurrency, it’s given two keys: one public key, which functions like an email address (meaning they can share this safely with others), and another private key that is usually made up of letters and numbers (and shouldn’t be shared with anyone). As soon as only you have access to your private key, then your money will remain safe in whatever location on earth where there is an internet connection because if somebody else had control of both these keys at once- well, let’s say their bank wouldn’t look so good anymore!

What are the public key and private key?

A private key is a string of numbers and letters that have been jumbled together at random. This crypto key has mathematically related to the public address. Still, it would be near impossible for an individual with any advanced level knowledge on cryptography to break this code or derive one from another – even if you had a supercomputer capable of hacking anything in existence by your side. It’ll take billions -if not trillions- years before someone hacks through these codes using today’s technology!

The concept of a private crypto key is at the beating heart of Bitcoin, as well as all other digital currencies that followed. like how losing your PIN isn’t so bad because you can always go to the bank for another one; misplacing your private key means funds will be inaccessible forever.

Public critical infrastructure (PKI) is a set of technologies used to manage identity and security on the internet. The technology responsible for it relies heavily upon public-key encryption, which involves two keys: one that can be shared with everyone and another private key reserved only for you. PKI are then paired together in an asymmetric cryptography system to encrypt or decrypt information securely without anyone else deciphering what was sent using such advanced methods while also providing safeguards against unauthorized access by third parties.

What are the public key and private key used for?

Your keys are like your personal password for accessing and sending bitcoins. It’s a set of numbers that can be used over and over again to send money without having to worry about copying or losing the key, which makes them perfect for both beginners who want convenience, as well as experts looking to consolidate their funds into one place.

Your private key is what you need to access Bitcoin transactions on an exchange platform such as Coinbase, cxihub. For every transaction made with this type of account (and there will inevitably be many), each signature we use has its unique number stemming from our single master code–which means it’ll never match up even if someone were trying to copy; these signatures themselves!

The public key is a string of random numbers that can be used to encrypt messages. This message will only show up as gibberish for any other person who doesn’t have the private key, which they would need to decode and read what you said. The two keys are related mathematically, so whoever decrypts your encryption with their private key gets precisely what you put into the first place - an encrypted form of something important.

Cryptocurrencies use public-key cryptography to create digital signatures that authenticate value transfers. While secret keys are used for symmetric encryption in cryptocurrency protocols, a public-private key pair is assigned to the cryptocurrency owners to protect their interests. Cryptocurrency owners shouldn’t hesitate to hold public-private keys since stealing control would mean losing control of the property or asset. Secure options can encrypt private keys on an isolated computer without a network connection to the hard drive physically encrypted or stored in another computer’ Secure options include saving private keys on isolated computers without network connections or physical storage.

Difference Between Private Key and Public Key

Few points will show how a private key is different from a public key:


Public-key cryptography, which is used in asymmetric-key cryptography, uses two keys, one for encryption and another for decryption. In contrast to a private key that can only be paired with its matching counterpart from the other person’s end to encrypt messages securely on both sides, this means you’ll need at least two people who want secure conversations or more if they have an extended group chat session.


A public key is a way to encrypt messages that you want to be sent securely. This means only the person with the private key, who can decrypt it at any time for free and without notice, will be able to read what was said or stored in encrypted form by someone else.

Public keys are often used when sending emails because they provide an extra measure of security against hackers trying to intercept your data while it’s being transmitted over email servers. However, sending this type of information via Facebook would not provide nearly as much protection from those looking for passwords and other sensitive personal info!

Type of Cryptography

In symmetric-key cryptography, only one key can be used for transmission between two parties. The private key is usually a string of letters and numbers representing different alphabets to encrypt data with it; this information must then stay secret by not being shared under any circumstance because anyone who knows these keys will have access to all encrypted communications sent through them, which could potentially contain sensitive information such as login details or credit card records. In contrast, public keys are very much like an address where you place your mail, so the recipient has some way back home when they receive their message from someone else - if anything goes wrong during delivery (i.e., encryption), at least something was delivered successfully!

Why are Private Keys Important?

The public and private keys system is a cryptographic innovation that makes digital money possible and secure. Here is how they work.

  1. Cryptocurrencies like Bitcoin and Ethereum are decentralized — meaning there is no bank or any other institution in the middle holding your digital money. Instead, your crypto is distributed across a network of computers via a technology called a blockchain. One feature of crypto blockchains is that they are open: all public key and transaction information is available for anyone to see.
  2. Via some complicated math, your public key is generated by your private key, making them a matched pair. So when you make a transaction using your public key, you verify that it’s you by using your private key.
  3. Even though everything is out in the open, it’s also anonymous — you don’t need to provide a name or address or any other information to use cryptocurrency.
  4. Take Bitcoin, for example. Even though any curious observer can see when Bitcoin is bought, sold, or used, only the holder of a private key can make those transactions.

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A Place to Store your Private Keys

Like any password, it’s crucial to keep your private keys safe. The two primary ways to keep track of them are:

Store them online in a crypto wallet:

With the rise of popularity in cryptocurrencies, many people are buying and selling digital currencies. But with so much on the line for hackers to steal your private key or password, there is a need for security that goes beyond any we’ve seen before - even more than when dealing with credit card numbers! The best option may be using an online wallet like Coinbase, cxihub because it offers convenience and accessibility just as if you were shopping online at home but also has something unique: two-factor authentication, which protects against unauthorized access by making sure no one can log into your account without having both pieces of information (i.e., passwords plus physical device).

Store them offline somewhere safe:

When you buy a cryptocurrency, it’s often in digital form. However, some people choose to keep their private keys on a computer that isn’t connected to the internet or memorized to be not vulnerable to hackers and the theft of sensitive information from other sources. This is called “cold storage.” While this does protect your key against hacking attacks online (known as ‘hot’ wallets), cold storage makes using cryptocurrencies much less convenient over time – without access wirelessly connecting with exchanges like Coinbase, cxihub and also creates new risks by leaving them unconnected and offline long term where they’re more likely exposed later than if they were maintained at an exchange.

Digital wallets

A digital wallet stores information about the password to your digital wallet. When a transaction occurs, the wallet system creates a digital signature. This method is used to confirm whether a transaction came from a particular user. If you lose access to your personal keys, you can no longer use them to transfer money, withdraw money or withdraw coins. There are several different ways to store a private digital address. The private key is stored in a secure device such as a paper wallet or QR code to be easily scanned if the private key is needed. As soon as the transaction is modified, the signature will change too.

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What are the common examples of Public-Private Key?

Diffie-Helman key exchange

The Diffie Hellman key exchange method allows both parties with no prior knowledge to create a shared secret key over an insecure channel together. Web PreVeil provides a graphical and interactive web-encrypted online mail service with integrated security features. It allows users to easily access their secure e-commerce website without downloading programs or storing any. The key exchange is used with the Diffie–Hellman method. It is used to protect encrypted communications between parties sharing keys over a public network rather than a secure means such as a paper list. If someone wants to communicate securely using ciphers and secure encryption, it must exchange with their key.

Digital signatures

Digital signatures assure that the sender of the message is who he is. Private keys and public keys allow you to generate unique digital signatures. PreVeil’s security method for storing messages is slightly complex than the example offered above. Although the model shows us how asymmetric encryption works in a generally helpful way. Reception’s based on an algorithm that sends encrypted messaging using its public key instead of encrypting a computer’s. So Mike could also grab the public key (since it’s public) and pretend that Bob created the signature.


A new standard is required to implement PKI-based security technology that makes digital certificates an increasingly valuable business solution. Unfortunately, this means enterprises will invariably have lots of private keys to protect.

Cryptocurrencies are built on an advanced form of cryptography called a private key. This is the “key” to accessing your cryptocurrency, and it allows you to securely store, send or receive funds online without fear of being hacked. However, the way cryptocurrencies work relies heavily upon public-key encryption, which involves two keys - one that can be shared with everyone and another private key reserved only for you if you’re interested in signing up for cxihub’s services.

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