Travel to ENS - Computer Science Department / Crypto Team
The École Normale Supérieure is in the center of Paris. Here is an area map and how to come there :
If you are already in Paris or if you come by train, you can take the subway (métro and R.E.R) to the Luxembourg station.
If you come by plane
From Charles de Gaulle (Roissy), take the R.E.R. ligne B, direction Paris until the Luxembourg station. (about 40 mn).
From Orly, take OrlyVal to Antony, and then take the R.E.R. ligne B, direction Paris until the Luxembourg station. (about 45 mn).
The département d'informatique is at the 45 rue d'Ulm. Once you are at the gate of 45 rue d'Ulm, you face the main building. Do not enter this building but rather immediately make a right and then a left. You will be on a walk lined with trees, on which you go straight until you reach a door which you enter (see 'Aile Rataud' on the map). Then go to level -1: the Crypto Team is on your left.
Here is a video to find the Crypto Lab:
The salle Dussane is the main conference room at ENS. It is situated at 45 rue d'Ulm. Enter the main building, take the corridor to the left. The Dussane room is at the end on the left.
The amphi Rataud, aka NIR, "Evariste Galois" is another conference room at ENS, often used for the séminaire de cryptographie. It is located in the New Rataud Building, new the Computer Science Dept, level PB.