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Informations about the package hashed-search
Laravel Hashed Search
Package description: Package to allow hashing of encrypted data for searching
Installation
Install via composer
Publish package assets
Usage
Eloqent Models
In your model add the use CustomD\HashedSearch\Contracts\HasSearchableHash; trait and add a new property protected $searchableHash = ['bank_name'];
Eg:
Now on each save event, it will update the search hash for those columns.
To search:
Manual usage
You can manually has items by running the follwing code:
Methods
the \CustomD\HashedSearch\Facades\HashedSearch Class has the following methods
- create(string $value, string $saltModifier = "" ): ?string
- setSalt(string salt): SELF
- setTransliterator(string rule): SELF
- setHashes(?string $cypherA = null, ?string $cypherB = null): SELF
Security
An important consideration in searchable encryption is leakage, which is information an attacker can gain. Blind indexing leaks that rows have the same value. If you use this for a field like last name, an attacker can use frequency analysis to predict the values. In an active attack where an attacker can control the input values, they can learn which other values in the database match.
Here’s a great article on leakage in searchable encryption. Blind indexing has the same leakage as deterministic encryption.
