How to use .NET cryptography apis to implement cryptography algorithms such as RSA, IDEA, DES, AES, MD5, SHA, digital signature etc?

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C#

Java

cryptography

API

I want to implement Cryptography Algorithms. I thought to implement using C, C++, java. But it will take long time to complete it. As the steps of the algorithms are not less.
I do not have idea which programming language/ platform will be better to implement this algorithms. I have heard about java APIs. Please suggest me some tutorials where from to start.

What I have tried:

I tried to implement using C and C++. It takes so much time because of many steps in the algorithms.