Code — Datalock

✅ – Meets 21 CFR Part 11, ICH E6(R2) requirements. ✅ Non-repudiation – Proves exactly who locked the data and when . ✅ Disaster Recovery – Allows verification of archived copies against the original lock. ✅ Simplifies Audits – Auditors only review the locked version, not live edits.

The graph below visualizes the (blocking) versus the actual Execution Time as concurrent requests scale up. datalock code

# The ciphertext is the 'locked' data ciphertext = encryptor.update(plaintext_data) + encryptor.finalize() ✅ – Meets 21 CFR Part 11, ICH E6(R2) requirements

We are moving toward a "post-code" future. While the term will persist, the technology is evolving rapidly. ✅ Simplifies Audits – Auditors only review the

: The first server "locks" the account. The second server must wait until the lock is released. 💻 The Basic Lock Implementation

def unlock_data(self, locked_data: bytes) -> bytes: """ Decrypts data to release the lock. """ # For demonstration, we assume the tag is appended. # A robust parser would separate these fields explicitly. # AES-GCM tag is usually 16 bytes. tag = locked_data[-16:] ciphertext = locked_data[:-16]