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"

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