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Warm-up·easy·10 pts
Base64
Another pure encoding — decode base64 back into the flag.
Base64 packs 3 bytes of binary data into 4 printable characters, which is why you see it everywhere data needs to survive being copy-pasted or embedded in text.
Decode the string below.
Encoded
Y2N0e2I0c2U2NF80bGxfdGgzX3RoMW5nc30=
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Up next
Single-byte XOR →A message XORed with one repeated byte. There's a shortcut hiding in how every flag on this site starts.