Secure download

How it works

HTTPS hides the bytes on the path. The authorization is the session, the password, or the signature. A public HTTPS URL is encrypted and still public.

A client downloads 3 GB over HTTPS with a four-hour signature. The cafe network sees TLS records. A forwarded link still works until expiry. Encryption did not make it private.

How it differs

Secure download is not revocation of a copy already saved.

Mixed content that pulls a side file over HTTP leaks that side file.

Keep every asset on HTTPS.

On the ticket

• The practical close is a log line: time, actor, byte count, result.
• Without that line the transfer is a story.
• With it, the next person can see whether this door did what the ticket claimed.
• If the path is shared, say so in the partner profile so a later change does not silently pick a different limit, key, or region.
• On a real ticket, write down the door, the byte count, and the clock.
• For secure download, that means naming the host or bucket, the expected size, and the time the other side must have a complete file.
• A progress bar is not that record.
• A 200 response that arrives before the complete call is not that record.
• If a retry is allowed, say how many and whether it resumes.
• If a person must approve the send, name the person.
• Partners who receive secure download files should match on hash or size before they import.
• A same-length corrupt file passes a size check and fails a hash.
• Keep the published hash off the only channel an attacker can edit, or treat it as a corruption check rather than a substitution check.
• When the path changes, new key, new region, new cap, update the profile the same day so the next run does not use a stale limit.