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Informations about the package altcha
ALTCHA PHP Library
The ALTCHA PHP Library is a lightweight, zero-dependency library designed for creating and verifying ALTCHA challenges, specifically tailored for PHP applications.
Compatibility
This library is compatible with:
- PHP 7.4+
- All major platforms (Linux, Windows, macOS)
Example
Installation
To install the ALTCHA PHP Library, use the following command:
Usage
Here’s a basic example of how to use the ALTCHA PHP Library:
API
Altcha::createChallenge(array $options): array
Creates a new challenge for ALTCHA.
Parameters:
options array:algorithm string: Hashing algorithm to use (SHA-1,SHA-256,SHA-512, default:SHA-256).maxNumber int: Maximum number for the random number generator (default: 1,000,000).saltLength int: Length of the random salt (default: 12 bytes).hmacKey string: Required HMAC key.salt string: Optional salt string. If not provided, a random salt will be generated.number int: Optional specific number to use. If not provided, a random number will be generated.expires \DateTime: Optional expiration time for the challenge.params array: Optional URL-encoded query parameters.
Returns: array
Altcha::verifySolution(array $payload, string $hmacKey, bool $checkExpires): bool
Verifies an ALTCHA solution.
Parameters:
payload array: The solution payload to verify.hmacKey string: The HMAC key used for verification.checkExpires bool: Whether to check if the challenge has expired.
Returns: bool
Altcha::extractParams(array $payload): array
Extracts URL parameters from the payload's salt.
Parameters:
payload array: The payload containing the salt.
Returns: array
Altcha::verifyFieldsHash(array $formData, array $fields, string $fieldsHash, string $algorithm): bool
Verifies the hash of form fields.
Parameters:
formData array: The form data to hash.fields array: The fields to include in the hash.fieldsHash string: The expected hash value.algorithm string: Hashing algorithm (SHA-1,SHA-256,SHA-512).
Returns: bool
Altcha::verifyServerSignature($payload, string $hmacKey): array
Verifies the server signature.
Parameters:
payload mixed: The payload to verify (string orServerSignaturePayloadarray).hmacKey string: The HMAC key used for verification.
Returns: array
Altcha::solveChallenge(string $challenge, string $salt, string $algorithm, int $max, int $start, $stopChan = null): array
Finds a solution to the given challenge.
Parameters:
challenge string: The challenge hash.salt string: The challenge salt.algorithm string: Hashing algorithm (SHA-1,SHA-256,SHA-512).max int: Maximum number to iterate to.start int: Starting number.
Returns: array
Tests
License
MIT
All versions of altcha with dependencies
PHP Build Version
Package Version
Requires
php Version
>=7.4
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