Лаборатория RuCTF Quals 2014. Admin 100

yalegko
, 20 March 2014

We searched for "iip" and knew that it's a name of The Invisible Internet Project (I2P), so we installed it and tried to do some serfing, all're OK. But what's the strange link in the task? While we serf i2p we know, that every site in i2p has usual addres in domen .i2p that's usual alias from long hash. Every such hash is over 500 characters and it must end in "AAAA" in i2p router we can add this hash as our i2p site and router would generate us direct 32bit link to the site. Followed that link we get a flag.

We searched for "iip" and knew that it's a name of The Invisible Internet Project (I2P), so we installed it and tried to do some serfing, all're OK. But what's the strange link in the task? While we serf i2p we know, that every site in i2p has usual addres in domen .i2p that's usual alias from long hash. Every such hash is over 500 characters and it must end in "AAAA" in i2p router we can add this hash as our i2p site and router would generate us direct 32bit link to the site. Followed that link we get a flag.