https://github.com/charlespascoe/padding-oracle-demo

A TypeScript demonstration of a Padding Oracle Attack
https://github.com/charlespascoe/padding-oracle-demo

crypto demo security typescript

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A TypeScript demonstration of a Padding Oracle Attack

• Host: GitHub
• URL: https://github.com/charlespascoe/padding-oracle-demo
• Owner: charlespascoe
• License: mit
• Created: 2019-02-03T18:48:56.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2019-03-19T12:07:46.000Z (over 7 years ago)
• Last Synced: 2025-06-23T09:15:21.352Z (12 months ago)
• Topics: crypto, demo, security, typescript
• Language: TypeScript
• Homepage:
• Size: 171 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Padding Oracle Demo

A TypeScript demonstration of a [Padding Oracle Attack](https://robertheaton.com/2013/07/29/padding-oracle-attack/).

It can decrypt all but the first block of encrypted data using only a padding oracle. If the first blocks of a ciphertext/plaintext pair is known, the IV can be computed, which can be used for full decryption of other messages.

Run `npm install` to install dependencies and then `npm run demo` to run the demo, or just `ts-node index.ts` if you already have `ts-node` globally installed. I know it may seem pointless only having TypeScript as a dependency, but hey, I like [TypeScript](https://www.typescriptlang.org/).

Output when run:

![Output when the demo is run](screenshot.png)