Day043 - 生成AIで作るセキュリティツール100 Columnar CipherLab は、縦列転置式暗号（Columnar Transposition Cipher）の暗号化・復号化を体験できるWebベースの教育ツールです。 縦列転置式暗号は、古典暗号の中でも広く使われている転置暗号の一種です。

We all have secrets to keep. Those secrets could be personal dirt we want to keep from others, or they could be something as mundane as our credit card numbers or medical histories. But all of us have ...

It’s been a couple of Math Mondays since we last looked at columnar transposition ciphers, so let’s jump back in. In the It’s been a couple of Math Mondays since we last looked at columnar ...