Crate maskify 

maskify

A zero-dependency, blazing-fast Rust crate for masking sensitive data.

Built by Daniyal Masih — a senior Rust developer focused on building high-quality, production-ready crates for the Rust ecosystem.

Supported Data Types

• 📧 Email addresses
• 📱 Phone numbers
• 💳 Credit/Debit card numbers
• 👤 Names
• 🌐 IP addresses (IPv4 & IPv6)
• 🪪 Aadhaar numbers (India)
• 🪪 PAN card numbers (India)
• ⚙️ Custom masking with builder pattern

Quick Start

use maskify::MaskExt;

let email = "user@example.com";
assert_eq!(email.mask_email(), "u***@example.com");

let phone = "9876543210";
assert_eq!(phone.mask_phone(), "98******10");

Structs

Masker

A builder for creating reusable custom masking strategies.

Traits

MaskExt

Extension trait — call masking methods directly on &str and String.

Functions

mask_aadhaar

Masks an Aadhaar number — shows only last 4 digits in formatted output.

mask_all

Masks an entire string with asterisks.

mask_card

Masks a credit/debit card number.

mask_custom

Custom masking — you decide how many characters to keep at the start and end.

mask_email

Masks an email address.

mask_ip

Masks an IP address — shows only the first octet (IPv4) or first group (IPv6).

mask_name

Masks a name — keeps first letter of each word.

mask_pan

Masks a PAN card number — keeps first and last character.

mask_phone

Masks a phone number.