AES Crypto is a symmetric encryption algorithm commonly used in Blockchain. So more specifically, what is this algorithm like? How is it applied? Join Learn Crypto Trading to find out details in the article below!

Some general knowledge about AES Crypto

First, you must understand the general knowledge of AES Crypto such as concepts, characteristics,…

What is AES Crypto? 

AES is the English acronym for Advanced Encryption Standard. This is a symmetric encryption algorithm used to protect Crypto Inside data in computer networks. The AES encryption algorithm was published in 2001 by the US National Institute of Standards and Technology (NIST). 

AES is a series of bits 0 and 1. AES can receive 3 different sizes including 128, 192, and 256 bits. 

Operating mechanism of the AES algorithm in Blockchain

AES Crypto is not usually used in its original form but will have 4 basic modes. Each mode will have a different operating mechanism. Those modes include ECB, CBC, CFB, and OFB.

ECB (Electronic Codebook)

ECB is an AES algorithm method that is independent of clear data blocks. Each block of data in the ECB is encrypted individually using an encryption function with secret key K. Because it is encrypted individually, the decryption process is also completely independent.

The fact that AES Crypto is independent means that each block of clear data can be converted into a block of code with exactly the same output. This maximizes data processing speed in Blockchain.

Regarding limitations, the ECB is vulnerable to attacks when a data block appears multiple times. It creates characteristic patterns and can jeopardize the security of the system.

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CBC (Cipher Block Chaining)

CBC is an acronym for Cipher Block Chaining which is a chaining mode that links code blocks. This encryption algorithm is designed with the purpose of providing security and integrity for data when transmitted over the Blockchain network. 

In CBC, each subsequent encryption block is created by introducing an encryption algorithm in the previous block. CBC uses a binding mechanism. That’s why the decoding process of the blocks is done based on the previous encryption blocks. The decryption of each subsequent block depends on all previous encryption blocks.

CFB (Cipher Feedback)

CFB is the acronym for Cipher Feedback, which means backlink code mode. CFB helps encrypt data effectively. CFB does not apply an encryption scheme directly to each block of plaintext data but rather acts as a key set for each stream of random data.

The encryption process begins by using an initialization vector. They then generate a random encrypted stream. This encrypted stream is then XORed with the plaintext data and creates encrypted data. This process increases the security, safety as well as flexibility of the system.

OFB (Output Feedback)

In this mode, a pseudo-random stream is created. This thread then performs the XOR operation and produces the output data.

The advantage of OFB is increased resistance to communication errors. This is shown in the fact that when an error occurs during data transmission, it does not affect other data blocks. The data is still decoded correctly.

Necessary criteria of an AES Crypto

An AES Crypto needs to meet the following criteria:

– Initial criteria

+ Safe, can resist all cryptanalysis attacks in reality

+ Has computational value

+ Brings in its own characteristics of algorithms and settings.

– Final criteria:

+ AES is safe overall

+ Easy installation into hardware and software

+ Resists all attacks

+ Flexibility in the process of decoding and locking

Advantages and disadvantages of AES Crypto

Any encryption algorithm has its own advantages and limitations. AES Crypto is no exception.

Advantages of AES on Crypto Exchange

AES encryption algorithm has outstanding advantages such as:

• High security: AES is a relatively strong encryption algorithm. It has high security in the process of encoding and decoding data.
• Encoding and decoding speed can be said to be very fast.
• High flexibility when using keys with many different lengths from 128 bits, 192 bits to 256 bits. In particular, AES can be used in both hardware and software.
• AES is an international standard encryption algorithm so it is widely accepted around the world.

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Disadvantages of the AES algorithm

In addition to the above advantages, AES also has some limitations such as:

The security of data depends on the key length. If the key length is short and easy to guess, AES can be attacked. When the key is lost, the data can also be exposed.

AES cannot guarantee data security when the system is subject to a Blockchain network attack, DoS denial of service attack, or login information theft attack.

Finally, the process of implementing the AES encryption algorithm requires a sizable cost. 

Some applications of the AES algorithm in Crypto

Currently, the AES algorithm is commonly used in Crypto. These include:

Secure user data when transmitted over the network

Data that needs to be secured includes personal information and account data… Blockchain. When transmitting data over a network connection, hackers can “listen” to transmission information and know the recipient and sender information as well as the information being sent. AES helps prevent this situation from happening.

Protect data on the application

Including online banking applications, Visa cards… When this data is stolen, bad guys can access and transfer your money to another account. AES Blockchain algorithm helps protect data on the application effectively. Only people with the appropriate permissions can log in to the data. 

Protect data when storing

Finally, AES Crypto is also used to encrypt Blockchain data before storing them on devices such as hard drives, USBs or some other storage media. Thanks to that, bad guys cannot install bad links into data to steal information on computers or storage devices.

Protect user data on mobile devices

AES has been integrated into both iOS and Android operating systems, helping to protect user data on mobile phones. Important images, videos, and data on the phone will be protected from loss or unauthorized access.

Protect user data when storing in the cloud

Cloud storage is currently quite popular because it brings many conveniences to users. However, it has the limitation of being easily stolen. AES helps you protect data in the cloud as it travels across the network and at rest. 

Secure communication and Email encryption

AES protects the content of transmitted messages. They are built into Email and other secure communication applications. AES prevents any unauthorized intrusion, helping to secure personal information and data safely and effectively.

With such applications, AES is really extremely important for Blockchain users. Especially for those who regularly trade with cryptocurrencies, Arbitrage Crypto transactions are concerned about the disclosure of personal information, accounts, and data loss.

Conclude

Above, the article has synthesized and provided all the necessary knowledge about the AES Crypto encryption algorithm. If you want to learn more useful information, you can visit Learn Crypto Trading for reference!

FAQs:

Who designed AES Crypto?

AES was designed by two Belgian cryptographers. These are Joan Daemen and Vincent Rijmen.

Has AES ever been attacked?

AES Crypto has suffered quite a few attacks. However, up to this point, it has never been cracked.

What block size standard does AES use?

AES uses a standard block size of 128 bits.