Posted in未分类 Watermark Every Shared CSV/JSON — Field Guide When The Recipient Column Tells The Leak Story Posted by By xiezixing 2026年8月22日Mark every shared CSV or JSON with a non-repudiable fingerprint. When a dataset escapes three…
Posted in未分类 RSA-OAEP Has a Payload Ceiling: Why 2048-Bit RSA Fits Only 190 Bytes Posted by By xiezixing 2026年7月29日A 2048-bit RSA key does not encrypt 256 bytes of useful plaintext. With OAEP-SHA256, the…
Posted in未分类 AES Encryption Tool: The Three Decisions That Decide Whether Your AES Encryption Is Real Encryption Posted by By xiezixing 2026年7月2日AES-256 is the easy part. The three decisions that decide whether your AES encryption is real encryption are mode of operation, key derivation, and output framing.
Posted in未分类 The IV Your AES Bundle Hands You: Three Numbers That Decide Whether Your Text Round-Trips Posted by By xiezixing 2026年6月22日You paste a plaintext string into an AES encryption tool, pick a passphrase, and a…
Posted in未分类 The Watermark You Forgot to Add: Why Your Shared CSV Becomes a Liability the Day You Email It Posted by By xiezixing 2026年6月19日The Watermark You Forgot to Add: Why Your Shared CSV Becomes a Liability the Day…
Posted in未分类 The CSV Export That Quietly Told on Itself Posted by By xiezixing 2026年6月15日Ending (written first) The most common question after a leaked dataset is “where did it…
Posted in未分类 10 Free PDF Tools That Do the Tedious Work You’re Still Doing Manually Posted by By xiezixing 2026年3月29日10 Free PDF Tools That Do the Tedious Work You're Still Doing ManuallyA 200-page scanned…
Posted in未分类 5 Essential ElysiaTools You Need to Try Today Posted by By xiezixing 2026年3月14日Looking for powerful, free online tools to boost your productivity? ElysiaTools offers over 1,400 utilities…