docs/beta_test_plan.md

@@ -27,13 +27,14 @@ The protocol definition will include as completed:
 - Handshakes
 - Real-time data-stream encryption (and decryption)
 - Encrypted stream compression
-- Transmission over audio stream (at least one modulation type)
-- First steps in FEC (Forward Error Correction): detecting half of transmission errors
+- Transmission over audio stream
+- Minimal error correction in audio-based transmission
+- Error handling and user prevention
 
 And should include prototype or scratches functionalities, among which:
-- Embedded silent data transmission (such as DTMF)
+- Embedded silent data transmission (silently transmit light data during an encrypted phone call)
 - On-the-fly key exchange (does not require prior key exchange, sacrifying some security)
-- Stronger FEC: detecting >80%, correcting 20% of transmission errors
+- Strong error correction
 
 #### The Icing dialer (based on Icing kotlin library, an Icing protocol implementation)
 
@@ -127,15 +128,16 @@ The remote bank advisor asks him to authenticate, making him type his password o
 By using the Icing protocol, not only would Jeff and the bank be assured that the informations are transmitted safely,
 but also that the call is coming from Jeff's phone and not an impersonator.
 
-Elise, 42 years-old, is a journalist covering sensitive topics.
-Her work draws attention from people who want to know what she's saying - and to whom.
-Forced to stay discreet, with unreliable signal and a likely monitored phone line,
-she uses Icing dialer to make secure calls without exposing herself.
+Elise is a 42 years-old extreme reporter.
+After interviewing Russians opposition's leader, the FSB is looking to interview her.
+She tries to stay discreet and hidden, but those measures constrains her to barely receive cellular network.
+She suspects her phone line to be monitored, so the best she can do to call safely, is to use her Icing dialer.
 
-Paul, a 22 years-old developer, is enjoying its vacations abroad.
+Paul, a 22 years-old developer working for a big company, decides to go to China for vacations.
 But everything goes wrong! The company's product he works on, is failling in the middle of the day and no one is
-qualified to fix it. Paul doesn't have WiFi and his phone plan only covers voice calls in his country.
-With Icing dialer, he can call his collegues and help fix the problem, completely safe.
+qualified to fix it. Paul doesn't have WiFi and his phone plan only covers voice calls in China.
+With Icing dialer, he can call his collegues and help fix the
+problem, safe from potential Chinese spies.
 
 ## Evaluation Criteria
 ### Protocol and lib