Create open_challenge.md

Author: geopayme

.github/ISSUE_TEMPLATE/open_challenge.md

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+---
+name: "🔓 Cryptanalysis Submission"
+about: Submit findings, theoretical attacks, or implementation flaws in QD-RSA v1.1
+title: "[Challenge] "
+labels: [cryptanalysis]
+assignees: ''
+---
+
+## 📌 Target Layer (select one or more)
+- [ ] Φₛ(x): Session-specific irrational masking
+- [ ] Ξₛ(x): Entropy-shifted non-convex trap function
+- [ ] 𝓘ₛ*(x): Symbolic hash wrapped in SHA3-256
+- [ ] Combined pipeline weakness
+
+## 📋 Description of the Attempt
+Please describe the attack, strategy, or approximation technique used. Include whether it's theoretical or implemented, and what assumptions you made (e.g., access to ciphertext, timing side channels, etc.).
+
+## 🧪 Reproducibility
+If applicable, please provide:
+- Sample input/output
+- Simulation results
+- Code snippets (inline or via Gist)
+- Environment details (Python version, libraries, quantum simulator if used)
+
+## 📊 Complexity or Performance Estimate
+Estimate how scalable or practical your method is. For example:
+- Runtime complexity (e.g., polynomial, exponential)
+- Memory usage
+- Experimental benchmarks
+
+## 🔐 Notes
+Any limitations, observations, or side effects of your method? Was it partial, failed, or successful under narrow conditions?
+
+---
+
+🔖 This submission will be publicly reviewed and archived.  
+📧 For confidential disclosure: [email protected]