github.com/tokopedia/cryptography-example

PREREQUISITE

There are 2 encryption on this example

• Encrypt/Decrypt key: using RSA OAEP 256 encryption
• Encrypt/Decrypt payload: using AES GCM encryption

Generate RSA Key Pair

Create a key directory int root folder

mkdir key
cd key

Generate 2048 bit RSA Key

openssl genrsa -des3 -out private.pem 2048

Export the RSA Private Key

openssl rsa -in private.pem -out priv.pem -outform PEM

Export the RSA Public Key

openssl rsa -in private.pem -outform PEM -pubout -out pub.pem

Remove the RSA Key

rm private.pem

HOW TO RUN

GO

cd go-example
go run ./main.go

PHP

cd php-example
composer install 
php main.php  

JAVA

cd java-example
mvn install
mvn exec:java -Dexec.mainClass="com.java.example.Example"

C#

cd c\#-example
dotnet run 

JS

cd js-example
npm install crypto --save 

Python

cd python-example
pip install -r requirements.txt
python main.py