Tally
NUMBER-BASED CODES — *A1Z26, ASCII, binary, book ciphers; any mapping that converts letters to numbers.* The cryptography primitive of *letter-to-number mappings as the bridge between alphabet ciphers and modern binary computer-cryptography.*
Chapter 6 — Tally and the Conversion-Table
Tally is a small otter-tween with a small folded conversion-table card and a quick, methodical bearing.
She is small, warm-brown-and-cream, bright-eyed, fond-of-mappings-between-systems. Her signature feature is the small folded conversion-table card — a card with multiple parallel columns: alphabet letters / A1Z26 numbers / ASCII numbers / binary representations.
(Soft collision: CipherForge Tally ≠ EscapeForge Tally (math-puzzles archetype). Same first name, different domains per registry rule 3. EscapeForge Tally counts; CipherForge Tally maps letters to numbers.)
This is load-bearing. Tally embodies the number-based codes primitive. Modern computer cryptography fundamentally treats text as numbers — characters become numeric codes (ASCII), numbers become binary, operations happen on binary. Tally is the bridge between alphabet-cipher pedagogy and modern computer crypto.
Critical: Tally NEVER frames number-codes as advanced. She is explicit: “Letters become numbers. Numbers become letters. Mappings both ways. The mappings have specific names: A1Z26 (A=1, B=2, …, Z=26), ASCII (every character gets a number 0-127), binary (every number becomes a sequence of 0s and 1s). Each is just a different mapping.”
She teaches the number-code scaffolds:
- A1Z26. (Simple letter-to-number map. A=1, B=2, …, Z=26.)
- ASCII. (Standard computer character encoding. A=65, B=66, …, Z=90, a=97, …, space=32. 128 standard characters.)
- Binary. (Numbers as 0s and 1s. A (65 decimal) = 01000001 binary. Computer storage + transmission.)
- Book ciphers. (Letters indexed by (book-page, line, word, letter) tuple. Strong if the book is unknown to attacker.)
- Hex. (Base-16; common in computer contexts.)
- Bridge to modern. (Tally’s number-codes feed into Lattice’s modern crypto — XOR operations on binary, etc.)
Tally grew up in a small village where her family had been the village’s currency-exchangers — the otters who converted between the village’s standard currency + the seasonal-visiting-traders’ currencies (a mapping job).
She walked to CipherForge at twenty-two. Cypher: “What are number-based codes?” Tally: “Letters become numbers. Mappings both ways. A1Z26, ASCII, binary. Each is a different mapping. Bridge from alphabet-pedagogy to modern computer crypto.” Cypher: “You are appointed.”
“It is not hard. It is mappings. Letters ↔ numbers.”
Voice register
Guidance: Bright-eyed, methodical, fond of mapping between systems. Otter-tween. NEVER frames number-codes as advanced; ALWAYS as mappings anyone can do.
Sample lines:
- “Letters become numbers. Numbers become letters.”
- “Each system is just a different mapping.”
- “Bridge from alphabet-pedagogy to modern computer crypto.”
Arc
- Kit 6 — Anchor.
- Kit 7-16 — Recurring.
Relationships
- Alliance: Lattice (Tally’s number-codes feed Lattice’s modern crypto). Soft collision w/ EscapeForge Tally per rule 3.
Cultural-sensitivity gate
Fear-amplification gate enforced.
Cultural-context note
ASCII (American Standard Code for Information Interchange) developed 1963. Binary numeric representation foundational to digital computing. Book ciphers historically used in espionage but in CipherForge framed in fun-coded contexts (e.g., coded notes referencing a shared favorite-book).
The CipherForge ensemble
Tally is part of CipherForge's distributed-narrative cast. Each character embodies a different curricular primitive; together they teach the full subject.
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Caesar
Caesar shift / monoalphabetic shift cipher
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Mask
Atbash + general monoalphabetic substitution (every letter has a fixed substitute)
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Vigenère
Vigenère / polyalphabetic keyword cipher (the Caesar-on-a-rotating-keyword pattern)
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Echo Pair
Playfair digraph cipher (letters encoded in pairs through a 5×5 grid)
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Rail
Rail-fence + columnar transposition ciphers (rearrange letter order without changing the letters themselves)
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Sift
Frequency analysis + cryptanalysis-by-statistics (the cipher-breaking method, not a cipher itself)
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Lattice
Modern cryptography fundamentals — XOR, public-key concept, hashing (the irreversible / asymmetric family)