Posted in未分类
Numeric OTPs for QA: Secure Test Codes Without Pretending They Are TOTP
The six-digit box hides a system, not a numberA verification code looks trivial because the…
Posted in未分类
Z-Score Standardization, Done Without a Spreadsheet
Z-Score Standardization, Done Without a Spreadsheet A column of salaries and a column of ages…
Posted in未分类
RSA-OAEP Has a Payload Ceiling: Why 2048-Bit RSA Fits Only 190 Bytes
A 2048-bit RSA key does not encrypt 256 bytes of useful plaintext. With OAEP-SHA256, the…
Posted in未分类
Every Outlier Is a Boundary You Did Not Define: Turning Sensor Spikes, Financial Limits, and Statistical Tails into Explicit Constraints
The Bottom Line A dataset does not have outliers. It has values outside a boundary…
Posted in未分类
Your JWT Verifier Passed a Forged Token. The Library Did Exactly What It Was Told.
Algorithm confusion is the most common JWT verifier failure in production. Pin the alg, pin the iss, pin the aud — then verify the signature.
Posted in未分类
Your EXPLAIN Output Is a Confident Estimate. EXPLAIN ANALYZE Is the Receipt.
Your EXPLAIN Output Is a Confident Estimate. EXPLAIN ANALYZE Is the Receipt. SQL Explain Plan…