php8.5
Home/ Manual/ sodium / functions/ sodium_crypto_core_ristretto255_from_hash

sodium_crypto_core_ristretto255_from_hash

PHP function Edit on GitHub ✎

(PHP 8 >= 8.1.0)

Maps a vector

Description

sodium_crypto_core_ristretto255_from_hash(string $s): string

Maps a 64-bytes vector s to a group element. Available as of libsodium 1.0.18.

Func

Parameters

s

A 64-bytes vector.

Return Values

Returns a 32-byte random String.

Examples

sodium_crypto_core_ristretto255_from_hash() example

php
<?php

$hashes = sodium_hex2bin(
    '5d1be09e3d0c82fc538112490e35701979d99e06ca3e2b5b54bffe8b4dc772c1' .
    '4d98b696a1bbfb5ca32c436cc61c16563790306c79eaca7705668b47dffe5bb6'
);
var_dump(sodium_bin2hex(sodium_crypto_core_ristretto255_from_hash($hashes)));
?>

The above example will output:

output
string(64) "3066f82a1a747d45120d1740f14358531a8f04bbffe6a819f86dfe50f44a0a46"

See Also

Source: reference/sodium/functions/sodium-crypto-core-ristretto255-from-hash.xml · from the official PHP manual (php/doc-en)