i solved alot of crypto challenges mostly RSA and Classic
however i’m totally blocked at this challenge
i set my mind on AES but i’m not totally sure can anyone confirm ?
i’m not familiar with AES …
if it was really AES. is the challenge file has 2 base64 strings or just 1 ?
and obviously i need a hint please
It’s not base64. Not 100% sure which one it is though. I’m on this one now.
well … i end up getting it using @Padovah4ck help
for the people who still couldn’t figure it out
it’s AES type encryption however it’s a little uncommon type of it
it’s base64 %100 and the file contains the flag and secret word
@BitTheByte @Padovah4ck @n4ckhcker
Hey, I’m trying this with a friend of mine, we’re both stumped on this challenge. Any help?
Tried sooo many modes…
‘MODE_CBC’, ‘MODE_CCM’, ‘MODE_CFB’, ‘MODE_CTR’, ‘MODE_EAX’, ‘MODE_ECB’, ‘MODE_GCM’, ‘MODE_OCB’, ‘MODE_OFB’, ‘MODE_OPENPGP’, ‘MODE_SIV’, ‘MODE_XTS’
Have tried brute forcing IV’s…
The hex of the start of the enc looks little weird, so does the end, considered those might be prepended IV’s or counters… but nope … … i’m out of ideas at this point
hint : this type of bitter is usually served as a digestif after a meal but may also be served with coffee and espresso or mixed into coffee and espresso drinks
We talking about rusty nail’s? lol…
Got it! Thanks @jackshd
@jackshd said:
hint : this type of bitter is usually served as a digestif after a meal but may also be served with coffee and espresso or mixed into coffee and espresso drinks
This hint was perfect! It took a bit of googling but I managed to find an online tool that helped solve the challenge
mmm, in which part of the world ? what is used as digestive and mixed to coffee in Italy is strongly different and dispersive compared to the rest of the world I bet :lol:
@jackshd said:
hint : this type of bitter is usually served as a digestif after a meal but may also be served with coffee and espresso or mixed into coffee and espresso drinks
How did you figure this out? Because once having that information is pretty straight forward.
@deleite said:
@jackshd said:
hint : this type of bitter is usually served as a digestif after a meal but may also be served with coffee and espresso or mixed into coffee and espresso drinksHow did you figure this out? Because once having that information is pretty straight forward.
Yeah! I spent aaaaaages on this - and this save me from a lot of heart ache!!
THANK YOU!
@jackshd said:
hint : this type of bitter is usually served as a digestif after a meal but may also be served with coffee and espresso or mixed into coffee and espresso drinks
got it 
… Thank you for the hint 
@jackshd said:
hint : this type of bitter is usually served as a digestif after a meal but may also be served with coffee and espresso or mixed into coffee and espresso drinks
This hint helped me tremendously. Could someone share with me how one realises that it it uses that particular encryption and that particular library?
@jackshd said:
hint : this type of bitter is usually served as a digestif after a meal but may also be served with coffee and espresso or mixed into coffee and espresso drinks
Google the hint and done I hope this will hope without much of a spoiler
Type your comment> @solomonbston3r said:
@jackshd said:
hint : this type of bitter is usually served as a digestif after a meal but may also be served with coffee and espresso or mixed into coffee and espresso drinksThis hint helped me tremendously. Could someone share with me how one realises that it it uses that particular encryption and that particular library?
Did find it or not>>>
Type your comment> @BitTheByte said:
well … i end up getting it using @Padovah4ck help
for the people who still couldn’t figure it out
it’s AES type encryption however it’s a little uncommon type of it
it’s base64 %100 and the file contains the flag and secret word
How did you solve it!!
YEah solve it!! hahaha!!
@jackshd said:
hint : this type of bitter is usually served as a digestif after a meal but may also be served with coffee and espresso or mixed into coffee and espresso drinks
Your hint was on the point!!
Type your comment> @jackshd said:
hint : this type of bitter is usually served as a digestif after a meal but may also be served with coffee and espresso or mixed into coffee and espresso drinks
Thanks, after a quick google I easily figgured it out.
Type your comment> @jackshd said:
hint : this type of bitter is usually served as a digestif after a meal but may also be served with coffee and espresso or mixed into coffee and espresso drinks
Perfect, thanks for the hint!