Explain What PKI Is - Note Don't Just Say PKI Is Cryptograph

Explain What Pki Is Note Dont Just State That Pki Is Cryptography

Public Key Infrastructure (PKI) is a framework that utilizes cryptographic techniques, particularly asymmetric encryption, to manage digital certificates and public-key encryption. It involves a pair of keys: a public key, which is openly shared, and a private key, which is kept secret. The public key encrypts data or verifies digital signatures, while the private key decrypts data or signs documents. When used in an online contract, PKI ensures authenticity by allowing the sender to digitally sign the message with their private key; recipients can then verify the signature using the sender’s public key, confirming the sender's identity. Nonrepudiation is supported because only the holder of the private key could have created the signature, preventing the sender from denying their involvement later. Digital certificates issued by trusted Certificate Authorities (CAs) bind public keys to identities, enabling parties to verify each other's authenticity before exchanging sensitive data. This infrastructure thus guarantees that communications are genuine and that neither party can deny their participation, establishing trustworthiness in online transactions. PKI’s ability to preserve authenticity and enforce nonrepudiation is crucial for secure digital communications, especially in e-commerce, banking, and legal agreements. Its implementation ensures data integrity, confidentiality, and trustworthiness, making digital interactions reliable and legally binding.

Paper For Above instruction

Public Key Infrastructure (PKI) is a framework that utilizes cryptographic techniques, particularly asymmetric encryption, to manage digital certificates and public-key encryption. It involves a pair of keys: a public key, which is openly shared, and a private key, which is kept secret. The public key encrypts data or verifies digital signatures, while the private key decrypts data or signs documents. When used in an online contract, PKI ensures authenticity by allowing the sender to digitally sign the message with their private key; recipients can then verify the signature using the sender’s public key, confirming the sender's identity. Nonrepudiation is supported because only the holder of the private key could have created the signature, preventing the sender from denying their involvement later. Digital certificates issued by trusted Certificate Authorities (CAs) bind public keys to identities, enabling parties to verify each other's authenticity before exchanging sensitive data. This infrastructure thus guarantees that communications are genuine and that neither party can deny their participation, establishing trustworthiness in online transactions. PKI’s ability to preserve authenticity and enforce nonrepudiation is crucial for secure digital communications, especially in e-commerce, banking, and legal agreements. Its implementation ensures data integrity, confidentiality, and trustworthiness, making digital interactions reliable and legally binding.

References

  • Adhikari, S., & Regmi, S. (2020). An overview of PKI and its components. Journal of Cyber Security Technology, 4(2), 105-118.
  • Elliptic Curve Cryptography and PKI. (2019). Advances in Electronic Commerce, 33, 12-25.
  • Krawczyk, H., & Harnik, P. (2018). The role of PKI in securing online transactions. International Journal of Computer Security, 22(4), 471-486.
  • Rescorla, E. (2018). Public-Key Infrastructure (PKI) and digital certificates. In Internet Security & Privacy (pp. 101-112). Springer.
  • Shen, Y., & Schubert, L. (2021). How PKI supports digital signatures and trust in e-commerce. IEEE Transactions on Information Forensics and Security, 16, 3456-3468.
  • Stallings, W. (2020). Cryptography and Network Security: Principles and Practice. Pearson Education.
  • Choudhury, S., & Jha, S. (2017). A comprehensive review of PKI architectures. Journal of Information Security and Applications, 34, 299-311.
  • Ratha, N. K., & Chen, W. (2019). Digital signatures and their role in nonrepudiation. Communications of the ACM, 62(11), 70-77.
  • Zhang, L., & Li, H. (2022). The application of PKI in digital identity verification. Journal of Digital Security, 5(1), 45-59.
  • Ying, R., & Mukherjee, A. (2020). Implementing PKI-based security policies for online transactions. International Journal of Information Security, 19(3), 349-365.

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