crypto
Starter: Decode This
Distinguish encoding from encryption by decoding one clearly identified Base64 value.
Challenge category
crypto
16 distinct public Locinode crypto challenge families.
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Repeating Evidence — Case 6025
Westgate Insurance is investigating its telemetry service after a controlled training incident exposed a realistic weakness in a synthetic environment. Step in as the responder and follow the evidence.
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Shift Ledger — Case C8EB
Harborline Logistics is investigating its customer support portal after a controlled training incident exposed a realistic weakness in a synthetic environment. Step in as the responder and follow the evidence.
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Proof of Case — Case 863E
Highpoint Hospitality is investigating its vendor portal after a controlled training incident exposed a realistic weakness in a synthetic environment. Step in as the responder and follow the evidence.
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Repeating Trouble
Ironwood Energy is investigating its billing gateway after a troubleshooting artifact stores a route XORed with a short repeating key printed in the same incident bundle. Step in as the responder and follow the evidence.
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Known Key
Granite Peak Systems is investigating its vendor portal after a route was encrypted with a Vigenere-style shift using a key explicitly recorded in the maintenance notes. Step in as the responder and follow the evidence.
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Shift Change
Alder & Finch Legal is investigating its field-service dashboard after a deployment note records a route after applying a documented alphabet shift. Step in as the responder and follow the evidence.
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Double Wrapped
Redstone Manufacturing is investigating its billing gateway after a support value was transformed twice before being pasted into a change ticket. Step in as the responder and follow the evidence.
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ASCII Accounting
Cedar Vale University is investigating its document archive after an old integration logged a maintenance route as decimal character codes. Step in as the responder and follow the evidence.
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Bits and Pieces
Meridian Credit Union is investigating its customer support portal after a support utility exported a short maintenance path as eight-bit binary groups. Step in as the responder and follow the evidence.
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Split Cipher
Ironwood Energy is investigating its inventory dashboard after two artifacts contain separate ciphertext fragments while a third records the transformation key and assembly order. Step in as the responder and follow the evidence.
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Escaped Route
Westgate Insurance is investigating its asset tracker after a route copied through a ticketing system was percent-encoded and never converted back before being archived. Step in as the responder and follow the evidence.
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Peel Back
Bluehaven Aviation is investigating its billing gateway after a maintenance path was wrapped in three lightweight transformations before being stored in a support artifact. Step in as the responder and follow the evidence.
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URL Safe
Summit Municipal IT is investigating its operations API after a client token stores a route using URL-safe Base64 without padding. Step in as the responder and follow the evidence.
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Mirror Alphabet
Meridian Credit Union is investigating its inventory dashboard after a legacy support macro obscures a route with a mirrored alphabet substitution. Step in as the responder and follow the evidence.
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Hash It Out
Granite Peak Systems is investigating its dispatch console after an API diagnostic request expects the SHA-256 digest of a disclosed case identifier as its verification token. Step in as the responder and follow the evidence.