DATA ENCRYPTION

DATA ENCRYPTION

An Overview of Techniques and Applications

David Soto, Antonio Villalba, Jorge De La Rosa, Héctor Galán

INDEX

Encryption in the Cloud

06

Introduction

01

Data encryption in storage

Timeline

02

07

Modern types of encryption

Current Challenges and Future of Encryption

08

03

Conclusion

Digital Signatures and Authentication

09

04

Bibliography

Digital Signatures and Encryption

05

10

What is Encryption?

Encryption is the process of converting plaintext into ciphertext using an algorithm and an encryption key. This ensures that only authorized parties can access the original information by decrypting the ciphertext back into plaintext.

Importance in Data Security:

1. Confidentiality: Keeps sensitive information private.
2. Integrity: Prevents unauthorized data alterations.
3. Authentication: Verifies the sender’s identity.
4. Compliance: Meets industry regulations for data protection.
5. Protection Against Data Breaches: Makes intercepted data useless without the decryption key.

Timeline

600 B.C.

1977

16th Century

Atbash Cipher

Vigenère Cipher

RSA Encryption

50 B.C.

1918

1997

Caesar Cipher

Enigma Machine

AES

Encryption has evolved from simple codes to advanced digital security.

Modern types of encryption

Symmetric Encryption uses one key for both encryption and decryption. AES and DES.

Asymmetric Encryption uses a public key for encryption and a private key for decryption, ensuring secure communication. RSA and ECC.

3 ms

75 ms

1 ms

100 ms

AES

DES

ECC

RSA

Digital Signatures and Authentication

Introduction

How?

Digital Signature and Encryption

• Authentication Protocols Using Encryption

• TLS/SSL: Use digital certificates and public-key encryption to authenticate servers, exchange session keys, and secure data with symmetric encryption.
• Kerberos: Uses symmetric encryption and encrypted tickets to authenticate users and services in networks.
• OAuth 2.0: Employs signed tokens (RSA or HMAC) to securely authenticate and authorize access to resources.

Encryption ensures authenticity and integrity in digital signatures. A hash of the message is generated and encrypted with the sender's private key to create the digital signature. The recipient decrypts the signature using the sender's public key and compares the resulting hash with the one computed from the received message. If they match, the message is authentic and unaltered

Encryption in the Cloud

How Cloud Services Use Encryption:

Challenges:

Advantages:

Key Management: Complex to manage securely. Performance Impact: Can slow down processes. Cost: Implementation can be expensive. Accessibility: Ensuring easy access for authorized users.

Data at Rest: Encrypts stored data. Data in Transit: Secures data during transfer. End-to-End Encryption: Ensures data is encrypted on the user’s device and only decrypted by the recipient.

Enhanced Security: Protects against breaches. Compliance: Meets regulatory requirements. Data Integrity: Prevents tampering. User Trust: Increases confidence in cloud services.

Data Encryption in Storage

It is an essential measure to protect confidential information and reduce risks in case of loss or acess unauthorized to physical mechanism on storage systems.Secure data is encrypted, this helps ensure the confidentiality and integrity of information against many threatens.

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Current challenges and Future of Encryption

Current challenges

Confront diverse challenges in a technological range. These include data classification, Data loss prevention, secure file transfer and digital rights management.

Future of encryption

It's inportant understand the last trends in encryption. When exploring advances in encryption technology, cybersecurity teams can enforce data protection against the last threats

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CONCLUSION

Evolution

Encryption's Role

From classical methods to advanced algorithms like AES, encryption adapts to modern needs.

Encryption ensures data security by protecting confidentiality and integrity in a digital world.

Future Impact

Challenges

Encryption remains vital for IoT, blockchain, AI, and global digital security.

Quantum computing and new attacks demand constant innovation in encryption

BIBLIOGRAPHY

https://en.wikipedia.org/wiki Stallings, W. Cryptography and Network Security: Principles and Practice. Pearson, 2020. https://www.cloudflare.com/es-es/learning/ssl/what-is-encryption/ https://www.techtarget.com/searchsecurity/definition/encryption

Current challenges

• Data Classification: Add flags to data to activate encryption policy.
• Data loss prevention: This technology ensures compliance with regulations and standards through its masking and disinfection function.
• Secure file transfer: Provides a secure platform to easily share information with trusted recipients.
• Digital rights management: It adds an extra layer of security around data wherever it goes.

Importance of Encription in Storage

1. Protection in case loss or theft: Storage devices are vulnerable to theft.
2. Compliance regulatory: Many regulations require data protection meansures that include encryption.
3. Trust and reputation: Data breaches can damage trust in an organization. Encryption helps reduce the risks.
4. Defense against inside attacks: the data encrypted won't be legible without appropriate credentials

Introduction

Digital signatures are a key part of modern cybersecurity, ensuring that data and messages sent online are genuine and unaltered.

They help establish trust in digital communications by confirming both who sent the information and that it hasn’t been tampered with along the way

Future solutions

• Quantum cryptography: This novel concept is based on the principles of quantum mechanics levels of security.
• Quantum cryptanalysis: focuses on the study and application of quantum principles to analyze and decipher quantum cryptography systems.
• Post-Quantum cryptography: this trend proposes acting on stage in which advances quantum computers have become a functional reality.
• Grid cryptography: This technique involves masking confidential user information within algebraic structures of a complex nature.

Creating a Signature

The sender's message is converted into a unique code, called a "hash."

Encryption with a Private Key:

Verifying the Signature:

• The recipient uses the sender’s public key to check the hash. If it matches, the message is verified as authentic.

This hash is encrypted with the sender’s private key to create the digital signature.