sodium_memzero()/sodium_increment() polyfills behave incorrectly when libsodium-php 1.x is available about sodium_compat HOT 3 CLOSED

FROM php:5.6.37

RUN apt-get -y update \
    && apt-get -y install libsodium-dev \
    && pecl install libsodium-1.0.7 \
    && docker-php-ext-enable libsodium

WORKDIR /root/sodium_compat

RUN apt-get -y install unzip \
    && php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');" \
    && php -r "if (hash_file('SHA384', 'composer-setup.php') === '544e09ee996cdf60ece3804abc52599c22b1f40f4323403c44d44fdfdd586475ca9813a858088ffbc1f233e9b180f061') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;" \
    && php composer-setup.php \
    && php -r "unlink('composer-setup.php');" \
    && php composer.phar require paragonie/sodium_compat:1.6.4 \
    && { \
        echo '<?php'; \
        echo 'require_once __DIR__ . "/vendor/autoload.php";'; \
        echo '$str = random_bytes(SODIUM_CRYPTO_SECRETBOX_NONCEBYTES);'; \
        echo 'var_dump(sodium_bin2hex($str));'; \
        echo 'sodium_increment($str);'; \
        echo 'var_dump(sodium_bin2hex($str));'; \
    } > compat_increment.php \
    && { \
        echo '<?php'; \
        echo 'require_once __DIR__ . "/vendor/autoload.php";'; \
        echo '$str = random_bytes(SODIUM_CRYPTO_SECRETBOX_NONCEBYTES);'; \
        echo 'var_dump(sodium_bin2hex($str));'; \
        echo 'Sodium\increment($str);'; \
        echo 'var_dump(sodium_bin2hex($str));'; \
    } > increment.php \
    && { \
        echo '#!/bin/sh'; \
        echo 'set -ex'; \
        echo 'php ./compat_increment.php'; \
        echo 'php -n ./compat_increment.php'; \
        echo 'php ./increment.php'; \
    } > run.sh \
    && chmod +x run.sh

CMD /root/sodium_compat/run.sh