Update index.md

data-representation/activities/ascii-art/public/tommys_art_project.txt

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+ICA4MyM4MyAgICM4MyMjICAgIzEyMyMgICAgOTcjICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgMTE1ICAgCiAjICAgICAjICMgICAgICMgIyAgICAgIyAgIyAgICAjICAgICMgICM5OSMgMTA1IzEwNSAgICAgICAgIyAgICAjIDk1IzQ5IyA1MyM5NSAgNTMjNDgjICAgICMgIAogIyAgICAgICAjICAgICAgICMgICAgICAgICMgICAgOTUgICAjICMgICAgIyAgICMgICAgICAgICAgICMgICAgIyAjICAgICAgIyAgICAjICMgICAgICAgICAjICAKICA5OSM0OCAgIDQ4IzQ4ICAgNDgjNDggIDQ4ICAgICMgIyAgIyAjICAgICMgICAjICAgICAgICAgICA0OCM0OCMgNDgjNDggICMgICAgIyAjMTA4IyAgICAgIyMgCiAgICAgICAjICAgICAgICMgICAgICAgIyAgIyAgICAjICAjICMgIyAgICAjICAgIyAgICAgICAgICAgIyAgICAjICMgICAgICAjMTI1IyAgIyAgICAgICAgICMgIAogIyAgICAgIyAjICAgICAjICMgICAgICMgICMgICAgIyAgICMjICMgICAgIyAgICMgICAgICAgICAgICMgICAgIyAjICAgICAgIyAgICMgICMgICAgICAgICAjICAKICAjIyMjIyAgICMjIyMjICAgIyMjIyMgICAgIyMjICMgICAgIyAgIyMjIyAgICAjICAgICAgICAgICAjICAgICMgIyMjIyMjICMgICAgIyAjIyMjIyMgIyMjICAgCiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICMjIyMjIyMgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIA==

data-representation/activities/ascii-art/sol/solution.py

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+import base64
+
+text = flag = open("tommys_art_project.txt","r").read()
+text = (base64.b64decode(text.encode('ascii'))).decode('ascii')
+
+ascii_list = []
+a = 0
+
+for line in text:
+    for x in line:
+        if x.isdigit() == True:
+            a = a * 10 + int(x)
+        if x == ' ' or x == '#':
+            if a != 0:
+                ascii_list.append(a)
+                a = 0
+
+solution = []
+
+for x in ascii_list:
+    solution.append(chr(x))
+
+for x in solution:
+    print(x, end="")

data-representation/activities/enconding-train/sol/solution.py

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+import base64
+flag = open("my_encodings.txt","rb").read()
+
+def isBase64(s):
+    try:
+        return base64.b64encode(base64.b64decode(s)) == s
+    except Exception:
+        return False
+
+def isBase32(s):
+    try:
+        return base64.b32encode(base64.b32decode(s)) == s
+    except Exception:
+        return False
+def isBase16(s):
+    try:
+        return base64.b16encode(base64.b16decode(s)) == s
+    except Exception:
+        return False
+def isBase85(s):
+    try:
+        return base64.b85encode(base64.b85decode(s)) == s
+    except Exception:
+        return False
+
+while b'SSS{' not in flag:
+    if isBase16(flag):
+        flag = base64.b16decode(flag)
+    elif isBase32(flag):
+        flag = base64.b32decode(flag)
+    elif isBase64(flag):
+        flag = base64.b64decode(flag)
+    elif isBase85(flag):
+        flag = base64.b85decode(flag)
+print(flag)

data-representation/activities/froggified/sol/README.md

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+First, we observe that we have `binary` text, so we decode it and get the fake flag: `SSS{are_you_a_computer}`.  
+Next up, we see that the text looks like `ASCII`, so we decode it as `decimal`, thus getting the next fake flag: `SSS{nope_still_a_human}`.  
+After that, we see that all digits higher than 7 are gone, so we immediately think of `octal`, which will get us to the next fake flag: `SSS{you_look_like_you_know_linux_permissions}`.  
+We see a lot of `0x`s, so we know to decode from `hexadecimal` and we get to the last fake flag: `SSS{you_love_tic_tac_toe_huh}`.  
+In the end, we observe the text is encoding in `Base64`, so we decode it to get the real flag.

data-representation/activities/infinity-hashes/public/the_truth.txt

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+9dee45a24efffc78483a02cfcfd83433 7d7764888dc13da6436666cd97043a5ead014596cd9aef6d12f95a5602d15993beebd44b92014732c340239e7cd1f07c5ed4035d1a02151916e94d43ffa55cfa 54c37762351ac25b7e86477d8a078faf347fcfabdf044c4376d0728ce6cdcfe4801e0e1bcdbc0e2d71042fbf20779b2dd580975ac6c59d157250d0ce398f7c69 2b167392676cab961cb5d2ed5633ae05 db3d405b10675998c030223177d42e71b4e7a312 9ed1515819dec61fd361d5fdabb57f41ecce1a5fe1fe263b98c0d6943b9b232e

data-representation/activities/infinity-hashes/sol/README.md

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+Use any tool (like [Crackstation](https://crackstation.net/)) to crack the hashes.