Fictional mail and fixed example keys only · no mail is sent.
INBOX: BEFORE PGP
FROM: ALICE@EXAMPLE
PROJECT ORBIT
MEET AT THE LIBRARY AT 18:00
LOCAL OUTBOX → RELAY-01 → RELAY-02 → BOB'S INBOX
KEY UTILITY
No visitor identity or real secret is created.
Public material can be shared. Private material remains in the local key store.
METAL KEYRING
A matching name alone is not identity verification.
HYBRID PACKAGE INSPECTOR
MESSAGE
PROJECT ORBIT
↓PROJECT ORBIT
FAST SYMMETRIC ENCRYPTION
CIPHERTEXT
CIPHERTEXT
RECIPIENT PUBLIC KEY
WRAPS SESSION KEY
↓WRAPS SESSION KEY
SELECT A MODE TO ASSEMBLE PACKAGE
FINGERPRINT CHECK
Two keys claim to be ALICE. Compare the complete fingerprint through an appropriate independent channel.
CRYPTO WARS: EXHIBIT WALL
- 1991PGP is released for personal computers.
- 1990sZimmermann investigation and export-control controversy sharpen public debate.
- 1990sSource publication, software distribution, and civil liberties become prominent questions.
- late 1990s–2000U.S. mass-market export restrictions were broadly relaxed, while policy debates continued.
CRYPTOGRAPHY BECAME A QUESTION OF PRIVACY, CIVIL LIBERTIES, COMMERCE, SOFTWARE DISTRIBUTION, AND POLICY.