Privacy and Security digital worldAmong the sine qua non of. Every process we do over the internet, every message we send, every file we keep deserves to be protected. At this point, cryptography comes into play. This branch of science, which protects the data against unauthorized access by encrypt, constitutes the backbone of modern technology.
What is cryptography?
Cryptographyis the art of providing safe communication by converting data into an incomprehensible form. The main purpose is to ensure that information can only be read by authorized persons. In this process, encryption algorithms, switches and mathematical operations are used.
Cryptography has two basic components: encryption and password -solving. Encryptionconverts readable data (open text) to a mixed format (encrypted text). Decoding If it reverses this process, it brings back the original data. For example, the SSL certificate you use when sending an e-mail protects your data thanks to cryptographic protocols.
Historical Development of Cryptography
Cryptography has attracted the attention of humanity since ancient times. In the 1900s BC Egyptian He used simple encryption techniques in hieroglyphs. Roman Emperor Juli Caesar to protect the military messages, he developed a method called “Caesar Password .. In this method, each letter was encrypted by shifting a certain number in the alphabet.
Arab mathematician in the Middle Ages Al-KindiFinding the frequency analysis technique, giving cryptography a scientific dimension. In the 20th century, II. During World War II, Enigma machine revealed the critical role of cryptography in war strategies.
Modern Cryptography Types
Today, cryptography is divided into two main colas as symmetrical and asymmetric encryption. Each has its own advantages and usage areas.
Symmetrical encryption
Symmetrical encryptionThe same key is used to encrypt and solve the data. AES (Advanced Encryption Standard) and DES (Data Encryption Standard) are popular examples of this species. It is especially preferred because it can perform quickly in large data clusters. However, since the key needs to be shared safely, the security of communication channels is critical.
Asymmetric encryption
Asymmetric encryptionIn addition, a pair of switch is used: General Key (Public Key) and Private Key. While the general key is shared with everyone, the special key remains only with the owner. RSA and ECC (Elliptic Curve Cryptography) are the leading algorithms in this field. It is widely used in online banking and digital signatures.
Place of cryptography in daily life
Cryptography works quietly in every aspect of our digital life. From your social media accounts to your smart home devices, many systems rely on this technology.
Internet banking and payments
The SSL/TLS protocols you use in your banking transactions work thanks to cryptography. Your credit card information is encrypted and transmitted to the servers. Likewise Bitcoin 
$105,198.9 like crypto currencyLar are also based on cryptographic algorithms with blockchain technology.
Internet of Smart Devices and Objects (IoT)
Your smart watches or home security systems encrypt the data to the cloud. In this way, your health data or home camera records do not get into the hands of unauthorized persons. Without cryptography, IoT devices would have a major security risk.
Problems encountered in cryptography and security deficits
No system is 100 percent safe. The rise of quantum computers threatens existing encryption methods. For example, the RSA algorithm may remain vulnerable to quantum calculation.
Storing and sharing of switches is one of the weakest rings of cryptography. If malicious people seize keys, they can access encrypted data. For this reason, special software and hardware for key management are being developed.
Although cryptography is technically strong, human errors can weaken the system. For example, weak password selection or identity hunting attacks reduce the effect of encryption. Therefore, user training is as important as technology.
The future of cryptography
Quantum resistant algorithms and homomorphic encryption are among the cryptography trends of the future. Quantum resistant encryption It is based on more complex mathematical problems than traditional methods. Homomorphic encryption If the data is encrypted, it allows to process.
Artificial intelligence also finds its place in the field of cryptography. Machine learning is used to optimize encryption algorithms and to detect attacks. However, there is also a risk of abuse of artificial intelligence for password breaking purposes.
Responsibility Rejection: The information contained in this article does not contain investment advice. Investors should be aware that crypto currencies carry high volatility and thus risk and carry out their operations in line with their own research.
