How does the RSA cryptosystem work?

by | Oct 2, 2019 | CCNP, CompTIA, Data Breaches and Prevention, Data Security, Encryption, End Point Protection, Exclusive Articles, Featured, Network Security, Securing Authentication

RSA

RSA (Rivest–Shamir–Adleman) cryptosystem is a public-key cryptosystem that is widely used for secure data transmissions. It was first described by three cryptographers, Ron Rivest, Adi Shamir, and Leonard Adleman, in 1977. And, the cryptosystem is named after the acronym made of the initial letters of the surnames of the three cryptographers.

RSA is a public-key cryptosystem. It uses two different keys for encryption and decryption. If a message is encrypted with the public key, it can be decrypted only with the corresponding private key and vice versa.

But how does this RSA cryptosystem work? In this article, we will discuss key generation, encryption, and decryption in RSA with examples.

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Amrita Mitra

Author

Ms. Amrita Mitra is an author, who has authored the books “Cryptography And Public Key Infrastructure“, “Web Application Vulnerabilities And Prevention“, “A Guide To Cyber Security” and “Phishing: Detection, Analysis And Prevention“. She is also the founder of Asigosec Technologies, the company that owns The Security Buddy.

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