Blockchain wallet serves to store our assets. Blockchain wallet is decentralized and users are in complete control of the wallet. The user protects the assets in his wallet with the keys he owns, and can transfer them to other people.

A user who wants to send or receive any cryptocurrency can make transactions using software called wallets, not powdered with bank account numbers, each wallet has a unique address. These addresses are handled mathematically, without anyone's intervention or determined by anyone, in Blockchain wallets there are several private keys and public keys.

The wallet address consists of randomly generated lower and upper case sensitive numbers and letters. As I said before, both private and public keys are required to access the wallet address.

The public key is required to transfer to a Bitcoin wallet. Anyone who knows the public key can transfer to this wallet. The private key is required to transfer from one wallet to another. The person who owns the private key has complete control over the wallet. The private key is a 256-bit code and should not be shared with anyone.

There is a mathematical relationship between a public key and a private key, and each public key is private to a private key. It is not possible to access other wallets with the private key you have, when creating any wallet, the private key is generated first.

Cryptocurrency wallets consist of two forms, cold and hot wallets, according to some, cryptocurrency wallets are categorized differently, but by looking at how they work, it is possible to divide cryptocurrency wallets into cold and hot wallets.

Hot wallets are wallets that are used online, by having internet access, if you send crypto currency to any exchange, you send cryptocurrency to that exchange's hot wallet. Such wallets are considered to be of low security and it is advisable to store a small amount of cryptocurrency in the wallet. The exchange makes small transfers through this wallet.

As for cold wallets, they are offline wallets that do not use an internet connection, they are offline, keys are stored offline to ensure their security, this is how long-term investors or whales store cryptocurrencies.

• There are many types of software wallets, all of them have different working principles, most software wallets have an internet connection, so they are considered hot wallets, web and desktop, are software wallets.

• You do not need to download any files to your device to use the wallet, it is possible to access the blockchain by using your internet browser and complete the necessary procedures. For example, Steemitwallet.com is a web wallet that must be accessed in a browser with an internet network.

• When you use a desktop wallet, you have full control over your funds, to use a desktop wallet, it is also recommended to create a password as an extra security measure. Desktop wallets have a good level of security, but you may run into security threats.

• Mobile wallets have more in common with desktop wallets, of course designed to be used on smartphones, these wallets use QR codes to receive or send cryptocurrencies.

• Today, there are mobile wallets that contain many features, trustWallet is the most popular and safest mobile wallet, we have the opportunity to carry out all transactions that you can do in the cryptocurrency sector through TrustWallet.

• Hardware wallets are one type of cold wallet. Private keys are stored securely on devices without internet access. Hardware wallets are also expensive, as the level of security is quite high. They are not the preferred wallet for small investors. Therefore, these wallets are generally used by whales who want to keep them for a long time.

• It is not one of the most preferred wallets today due to its high security vulnerabilities and few flaws. Previously, it was favored by many segments. The public wallet address and private key are QR codes on paper wallets. According to some, it takes place in a cold wallet format.

• The biggest drawback of paper wallets is this. You can transfer all your assets at once. Part-by-part transfer operations are not possible.