Use C# to decrypt a string encrypted by javascript

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C#

Javascript

cryptography

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I'm using Node.js to encrypt a validation string using 'AES-256-CBC' in crypto. I'd eventually like to decrypt that string using C# System.Security.Cryptography.Aes class.

How do I find the corresponding c# decryption settings?


For testing, I'm encrypting a string in node.js, and encrypting that same string in c# and comparing my cipher texts.

As you can see below, they differ by only 1 character.

Here's the node.js cipher text:
efd50eda8f2c41c5ea7fd9ad94200edd

Here's the c# cipher text:
efd5eda8f2c41c5ea7fd9ad94200edd

What I have tried:

In both node.js and c#, I'm encrypting with a 32-byte key and a 16-byte IV.