decrypting Simple, single phrase decryption in Windows?

[CoolJosh3k]

Hi there

 

I’m looking to call a tiny command line program from a batch script that will take an encryption key, like “P&ssw0rd”, use it on some cypher text (that I prepared earlier) and output the decrypted phrase.

 

The idea is that when encrypting an archive, I want to make sure that I am using the same key every single time I run my script. I expect it will go something like:

 

1. Enter encryptionKey

2. Decrypt cypherText

3. If decryptResult not equals expectedResult goto 1, else continue

4. Use encryptionKey to encrypt archive.

 

Thanks in advance for any help given.