XOR Cipher & Bitwise Operator
XOR Cipher & Bitwise Operator: Demonstrates XOR on the first UTF-16 code unit of each input code point using a JSON integer key from 0 to 65535. It does not process bytes or provide secure encryption.
About this xor cipher & bitwise operator
Demonstrates XOR on the first UTF-16 code unit of each input code point using a JSON integer key from 0 to 65535. It does not process bytes or provide secure encryption Runs entirely in-memory using Web Crypto primitives to keep sensitive tokens, certificates, and cryptographic keys secure from third-party interception.
Encoding & cryptographic principles
Reads a JSON object with text and an optional JSON-integer key from 0 to 65535 (default 42). Iterates code points, XORs only each item's first UTF-16 code unit, and returns one code unit per item. This is not secure or Unicode-safe encryption.
Worked verification example
Scenario: Apply the current JSON XOR transform to a short text input.
Sample input:
Processing: Parse the JSON text and integer key, then iterate code points and XOR only the first UTF-16 code unit of each item. The ASCII sample is reversible; astral characters are not preserved.
Illustrative output:
Security parameters & input constraints
Invalid JSON, non-object input, non-numeric, fractional, negative, or above-65535 keys are rejected. This is not cryptographic encryption. A zero key leaves basic ASCII unchanged; non-ASCII or surrogate-pair input can lose information, and binary output is not encoded.
Cryptographic digests, encoded strings, and signatures generated by XOR Cipher & Bitwise Operator should be verified against target authentication systems before production use.
Client-side Web Crypto boundary
Key derivation, hashing, and encoding in XOR Cipher & Bitwise Operator execute in local memory using Web Crypto APIs without remote socket transmission.
Cryptographic specifications & RFC standards
Technical specifications and cryptographic RFC standards governing algorithms and key representations:
- RFC 8259 JSON input syntax and ECMAScript string iteration/bitwise XOR.
- Local first-UTF-16-unit transform with JSON integer key 0–65535; not secure encryption or lossless non-BMP handling.
XOR Cipher & Bitwise Operator verification · Audit standards
How to use it
- Enter a JSON object with text and an optional numeric key from 0 to 65535; omitting or nulling key uses 42.
- Run the local per-character JavaScript charCodeAt(0) XOR transformation.
- Read the resulting text and, for a reversible trial, run it again with the same key on basic ASCII.
Frequently asked questions
How does XOR Cipher process ordinary text and astral Unicode characters?+
It iterates JavaScript string code points, reads charCodeAt(0) for each, XORs that first UTF-16 code unit with the numeric key, and returns one resulting code unit per iteration. For an astral character this means the low surrogate is not processed or preserved, so it is not a byte-oriented or Unicode-safe cipher.
What does the CZOA example with key 42 produce?+
Enter {"text":"CZOA","key":42}. The current transform returns ipek: C^42=i, Z^42=p, O^42=e, and A^42=k.
Is XOR encryption suitable for secrets?+
No. A repeated simple numeric XOR key provides no modern confidentiality or integrity protection.
What input is required?+
A JSON object is required. Missing or null key uses 42; a supplied key must be a JSON integer from 0 to 65535. Invalid JSON, arrays, other non-object input, numeric strings, booleans, fractions, negative values, and larger keys are rejected locally.