tlsfuzzer/tlslite-ng

Support encrypted key files in Python key loader

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#237 opened on Mar 29, 2018

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enhancementhelp wanted

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Description

The m2crypto private key loader can handle encrypted files as it uses OpenSSL for handling them, unfortunately older versions of OpenSSL can't handle rsa-pss keys. Pure python code on the other hand can process rsa-pss keys, but can't decrypt encrypted private keys.

Extend the pure python code to support encrypted key files (both PKCS#1 with encryption and PKCS#8; basic algorithms only - AES, 3DES, PBES1, PBES2, PBKDF2).

Contributor guide

Research direction
Implement decryption of encrypted private key files in pure Python, supporting PKCS#1 with encryption and PKCS#8, using basic algorithms: AES, 3DES, PBES1, PBES2, PBKDF2.
Tech stack
python
Domain
security
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Pythoncryptography
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30