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LFSR Encryption and Decryption Implementation

100 / 100 · Low risk

Fine to try.

By ECNU-ICALK/AutoSkill (GitHub) · coding · 613 stars · scanned at commit 94c47ca

Implements a Linear Feedback Shift Register (LFSR) algorithm in Python to encrypt and decrypt messages. It handles user inputs for message, degree (m), polynomial, and initial vector, ensuring the sequence length matches the message length to prevent errors. It outputs a clock/flip-flop state table, encrypted binary values, and the final decrypted string.

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'lfsr-encryption-and-decryption-implementation' ] || [ -L ~/.agents/skills/'lfsr-encryption-and-decryption-implementation' ]; then echo 'A skill folder named lfsr-encryption-and-decryption-implementation already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/ECNU-ICALK/AutoSkill' "$d" && git -C "$d" checkout --quiet '94c47ca488d4ba4117d20272e66d49b9877e68cf' -- 'SkillBank/ConvSkill/english_gpt3.5_8_GLM4.7/lfsr-encryption-and-decryption-implementation' && mkdir -p ~/.agents/skills && cp -R "$d"/'SkillBank/ConvSkill/english_gpt3.5_8_GLM4.7/lfsr-encryption-and-decryption-implementation' ~/.agents/skills/'lfsr-encryption-and-decryption-implementation' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'lfsr-encryption-and-decryption-implementation' ~/.claude/skills/'lfsr-encryption-and-decryption-implementation' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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