Exercises

Every exercise from the courses, in one place. Search for a specific one, filter by subject, or let chance pick one for you.

Random exercise

Flash questionsShort drills on core skills, as cards to project or print.See the series

1120 exercises

Modern symmetric encryption: AES and operating modes

Cryptographie – Symétrique3 exercises

Short answerIntermediate

The number of laps

MCQIntermediate

Recognising the ECB’s shortcoming

Open answerIntermediate

The reused nonce

The Diffie-Hellman key exchange

Cryptographie – Clé publique4 exercises

Short answerAdvanced

Calculating a shared secret

What’s on the channel

The nature of the fault

Open answerAdvanced

Planning the parade

TLS and HTTPS: web security

Cryptographie – Réseau4 exercises

MCQIntermediate

Reading the padlock correctly

Short answerIntermediate

The decisive message

MCQIntermediate

Ongoing confidentiality

Open answerIntermediate

Assessing an alert

Certificates and the chain of trust

Cryptographie – Réseau4 exercises

What the signature guarantees

Short answerAdvanced

The current validation level

The weakness of the system

Open answerAdvanced

The benefits of transparency

End-to-end encryption

Cryptographie – Messagerie4 exercises

MCQIntermediate

Recognising architecture

Short answerIntermediate

The missing word

MCQIntermediate

The role of the Diffie–Hellman exchange in the ratchet

Open answerIntermediate

Responding to a change in footprint

Randomness in cryptography

Cryptographie – Fondamentaux4 exercises

MCQIntermediate

Choosing the right generator

Short answerIntermediate

The initial value

MCQIntermediate

Diagnosing the PlayStation 3 fault

Open answerIntermediate

The pitfall of the passphrase

Charging and discharging a capacitor (RC)

Physique – Électricité1 exercise

Time constant and unit