str_crypter 2.0.2

A macro library for XOR encryption and decryption of strings at compile time, meaning no cleartext strings will be in your release binary (when using the macro). The encrypted strings will be decoded at runtime.
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# Version 2.0.2


Reduced amount of code in an unsafe block.

# Version 2.0


## Added


Optional Key Parameter: The sc! macro now accepts an optional key. If no key is provided, it automatically uses a hashed version of the line number as the key, enhancing ease of use.

Dynamic String Length Handling: The macro now dynamically adjusts to the length of the input string, removing the previous fixed-size array limitation.

## Changed


Inlined Decryption Logic: Moved the decryption logic inside the sc! macro, eliminating the need for an external decrypt_string function.

Simplified Return Type: The macro now returns a String directly instead of a Result, as errors are impossible with string literals and reversible XOR operations.

Non-Zero Key Enforcement: Adjusted the key to ensure it is never zero, defaulting to 1 if a zero key is provided.

Removed UTF-8 Validation: Skipped UTF-8 validation during decryption using String::from_utf8_unchecked, since the process guarantees valid UTF-8 output.

## Removed


Fixed-Length Array Limitation: Eliminated the fixed-size array [u8; 256], allowing the macro to handle strings of any length.

## Fixed


Key Collision Handling: Implemented a hash function for the line number to handle cases where the line number exceeds 255, reducing the likelihood of key collisions when using the line number as a key.

Zero Key Handling: Ensured that a provided key of zero is adjusted to a non-zero value to maintain encryption integrity.

## Testing


Expanded Test Coverage: Updated tests to cover the new functionality, including:

1) Using the macro without specifying a key.
2) Handling of empty strings.
3) Special characters and Unicode support.
4) Zero key adjustment verification.