Fun with cryptography

Case1:
How about posting a cryptic message to a group where only one member will be able to decrypt it and others will not have a slightest idea about what it is..
Case2:
Many naive users still have the habit of storing the password in the google keep or sticky notes so that later they can able to access them. They don't know it is highly unsafe..


In whatever the case maybe, its very cool to dabble with cryptography. Here is an application called RSA in Action which helps users to quickly get hands on the benefits.(available only for android users.)

RSA is one of the well known cryptosystem for securing the data during transmission.

RSA in action is developed to demonstrate cryptic ability(securing the message) to its users.

Its easy to use and involves 3 steps.

1. Generate public key and private key.
2. Encrypt the message using receivers public key.
3. Decrypt the message using receivers private key.

1. Generate public key and private key.

It all begins by clicking the Generate key button on top of app. Each user will have their own public and private key. Every users must note down their public and private key into another application or text file. An user can expose their public key to others but not their private key.

2. Encrypt the message using receivers public key

In order for the user to encrypt the message they must have the receiver's public key. After encrypting the message user can copy the message and send to their recipient via various communication channel.

3. Decrypt the message using receivers private key

After receiver receiving the message they have to decrypt it with their saved private key.




So sender needs receivers public key to encrypt the message and receiver needs their private key to decrypt their message.


Thanks !