| Name | Last modified | Size | Description |
|---|---|---|---|
| Parent Directory | - | - | |
| messages.php | 2025-08-11 02:42 | 4.1K | |
| messages/ | 2025-08-05 10:17 | - | |
| verifier.html | 2025-08-11 02:51 | 44K | |
| zosciibb.html | 2025-08-11 02:51 | 19K |
ZERO encryption ZERO ciphering 100% secure* communication system
100% disclosure - Complete transparency in operation
ZOSCII (Zero Overhead Secure Code Information Interchange) is an encoding system loosely based on ASCII, PETSCII and EBCDIC designed for the purpose of speeding up text output on 8-bit computers. ASCII and PETSCII which are common for 8-bit computers require that to output each character, you must first know the start of a table, and then for each character add the offset to find the one required. ZOSCII uses direct addresses treating the entire memory map of the 8-bit computer as the character lookup table. This means that to output text, there is no longer a requirement to add an offset. On a typical Z80 based computer this can give a 40% speed increase in character output. The Z80 is a CPU that was manufactured from July 1976 until June 2024 and is one of the most commonly used 8-bit CPUs in home computers and video game hardware among other uses. In addition to the added performance of character output, using the memory space as the actual character table means that no space within the actual ROM of the computer is required for such ASCII or PETSCII character tables, freeing up the space for better purposes.
A side effect of this approach is the discovery of a revolutionary new secure communication technique that achieves perfect information-theoretic security without any encryption or ciphering algorithms.
Instead of encrypting data, ZOSCII encodes messages as address sequences pointing to locations within a shared ROM (Read-Only Memory) file. Without the ROM, these addresses are completely meaningless. With the correct ROM, messages decode perfectly.
This service operates under Australian law and is subject to the Assistance and Access Act 2018.
Under this legislation, we may be compelled to:
For maximum security, we recommend using the local client version (zosciibb.html and verifier.html) available at:
Users select a ROM file (any binary file - image, document, etc.) that becomes their personal encoding key. This ROM is NOT uploaded to the server (unless legally compelled and potentially gagged) but is used only within your web browser.
Messages are converted to sequences of addresses pointing to byte locations within the ROM.
Only the address sequences are uploaded and stored on the server - no actual message is ever sent to the server (unless legally compelled and potentially gagged).
Other users with the same ROM can utilise the addresses to read back the original message.
ZOSCII's security depends on using a high-quality ROM file that contains sufficient character diversity. A ROM consisting of only zeros would provide no security at all.
Check your ROM quality using our verifier tool: verifier.html
Good ROM characteristics:
This bulletin board demonstrates complete transparency:
Browse all stored address files. Each file contains only address sequences - meaningless without the corresponding ROM.
View page source to see the complete JavaScript implementation. Zero minification, complete transparency.
When you use the wrong ROM, instead of showing gibberish, the system displays thought-provoking quotes about surveillance and privacy. This serves three purposes:
For users requiring maximum security, we provide a local client that:
For complete technical details, implementation specifications, and security analysis, refer to the ZOSCII whitepaper available in the GitHub repository.
"ZOSCII achieves information-theoretic security by encoding messages as randomized address sequences within shared ROM files. Each character in a message is represented by a randomly selected address pointing to that character's location in the ROM."
"Unlike cryptographic systems that rely on computational complexity to encrypt a message that is still within the actual encrypted file and open to brute force attacks and even identification of the encryption being used in many cases, ZOSCII's security is absolute: without the ROM file, the address file contains no message or recoverable information regardless of available computational resources. This is simply a standard computer address lookup for which no mathematics are required."
ZOSCII is designed as a universal communication protocol that bridges different computing eras and character encoding systems: