Cryptography by Rajas Umalkar https://padlet.com/raum8237/a43xcgg3x7tqi08r en-us 2021-11-19 02:56:11 UTC 2025-12-08 22:01:39 UTC hello@padlet.com Basics of Cryptography: raum8237 https://padlet.com/raum8237/a43xcgg3x7tqi08r/wish/1901168442 There is more to cryptography than just encryption.
1) Encryption
Encryption is to convert the data in some unreadable form. This helps in protecting the privacy while sending the data from sender to receiver. On the receiver side, the data can be decrypted and can be brought back to its original form.
2) Authentication
Authentication ensures that the message was originated from the originator claimed in the message. 
3) Integrity
 Cryptography should ensure that the messages that are received by the receiver are not altered anywhere on the communication path. This can be achieved by using the concept of cryptographic hash.
4) Non Repudiation
What happens if Alice sends a message to Bob but denies that she has actually sent the message? Cases like these may happen and cryptography should prevent the originator or sender to act this way. One popular way to achieve this is through the use of digital signatures. 

]]> 2021-11-19 03:04:18 UTC https://padlet.com/raum8237/a43xcgg3x7tqi08r/wish/1901168442 Cybersecurity and Cryptography raum8237 https://padlet.com/raum8237/a43xcgg3x7tqi08r/wish/1901177999 Experts argue that cryptography is a subset of cybersecurity; it is one of the methods that experts use to keep data safe. On the other hand, they say that the two are separate units where none contains the other. However, they are both vital to curbing cybercrime and cyberwarfare.

As cybersecurity involves risk management, policies, disaster planning, and access control, cryptography relies upon confidentiality, authentication, and data integrity. They are two separate fields that are equally essential in keeping systems safe.

]]> 2021-11-19 03:08:59 UTC https://padlet.com/raum8237/a43xcgg3x7tqi08r/wish/1901177999 Cryptography and Machine Learning and Data Science raum8237 https://padlet.com/raum8237/a43xcgg3x7tqi08r/wish/1901186346 2021-11-19 03:13:16 UTC https://padlet.com/raum8237/a43xcgg3x7tqi08r/wish/1901186346