I love network security for new recruitment assessment

· Sign in

· Four Caesars and four fences ？

· Beautiful notes

· Simple steganography

· Looking for your sister ！

·EZbase

· Little rabbit

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1、 Sign in ： Simple view of source code

2、 Four Caesars and four fences ？： Fence before Caesar

 

  The title has implied that both Caesar and palisade are four , So we just need to try who is the first .

3、 Beautiful notes ： Direct Baidu is like discussing Zen with Buddhism

The resolved character contains uppercase 、 A lowercase letter 、 Numbers , It is very likely that base64

4、 Simple steganography ： Upper tool 010 Search for answers directly in the text

  It is very so easy（ Although it's not the beginning ）

5、 Looking for your sister ！： Don't be deceived by the surface ,

Really not really ！！！！

use 010 Open this handsome senior, and then search directly without brain, and then it will appear flag.

6、EZbase: Limitless dolls

On the topic

Xiaobai won't just go to Baidu

  Start dolling

Morse decrypts

KMYHOMDENZHHIVKXHFKE23LEGBJEIWTSJ5DUU5S2IVSFQVJRIE2GE3KOO5JEMWJRMJWWWNKRKZJFMUTLKF4FIRSKI5RDAMKTMJWWQWTCK5LDAV3OMR2VMV3UJFRDESSRKUZEMM2PJBLFIYZRNRKFCVTQN5LFQZDSMNCTCUSSGFWGWYZQGAZWEMKJGBKVQTSZKIYXAWCWNRVXSZBRIIYVE3KKOVHEQZDVKVLXANCWNRLEMZLNJZIWEM2COVNHUSSXKRWFMSK2NVDFCYSVGVYGC2ZQHU======

base32 Decrypt

S0w0dnNtUW9TMmd0RDZrOGJvZEdXU1A4bmNwRFY1bmk5QVRVRkQxTFJGb01SbmhZbWV0WnduVWtIb2JQU2F3OHVTc1lTQVpoVXdrcE1RR1lkc003b1I0UXNYR1pXVlkyd1B1RmJuNHduUWp4VlVFemNQb3BuZzJWTlVIZmFQbU5pak0=

base64 Decrypt

KL4vsmQoS2gtD6k8bodGWSP8ncpDV5ni9ATUFD1LRFoMRnhYmetZwnUkHobPSaw8uSsYSAZhUwkpMQGYdsM7oR4QsXGZWVY2wPuFbn4wnQjxVUEzcPopng2VNUHfaPmNijM

base58 Decrypt

55326868636d744456455a37596a51315256394351584d7a587a5930557a4e66515763304d5735664d6a4d7a66513d3d

base16 Decrypt

U2hhcmtDVEZ7YjQ1RV9CQXMzXzY0UzNfQWc0MW5fMjMzfQ==

go back to base64 Continue decryption

SharkCTF{b45E_BAs3_64S3_Ag41n_233}

get flag, Seven conversions have been made ！！ What is expected every time is flag.

7、 Little rabbit ： Pick words

On the topic

  Observe each word of the topic ！！！

 Rabbit Decrypt

SLsec{f330ad0d5bba3bab338d99a7b2ba81ca}

The random test method of this question just won't , Finally compromised , I consulted my classmates .

Only then discovered in the prompt looked at the topic is looked at “ A good day ” instead of “ To jump about ”.

The above is the first step on the road of network security , I am ！ come on. ！