sodium_crypto_core_ristretto255_from_hash

(PHP 8 >= 8.1.0)

sodium_crypto_core_ristretto255_from_hash — 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.

Warning

This function is currently not documented; only its argument list is available.

Parameters

s

A 64-bytes vector.

Return Values

Returns a 32-byte random string.

Examples

Example #1 sodium_crypto_core_ristretto255_from_hash() example

<?php

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

The above example will output:

string(64) "3066f82a1a747d45120d1740f14358531a8f04bbffe6a819f86dfe50f44a0a46"

See Also