INNER CODE UNIT · C
ciphertext_len
jedisct1/libsodium-php · libsodium.c:2082
ciphertext_len = msg_len + crypto_aead_aes256gcm_ABYTES;
ciphertext = zend_string_checked_alloc((size_t) ciphertext_len, 0);
if (crypto_aead_aes256gcm_encrypt
((unsigned char *) ZSTR_VAL(ciphertext), &ciphertext_real_len, msg,
(unsigned long long) msg_len,
ad, (unsigned long long) ad_len, NULL, npub, secretkey) != 0) {
zend_string_free(ciphertext);
zend_throw_exception(sodium_exception_ce, "internal error", 0);
return;
}
if (ciphertext_real_len <= 0U || ciphertext_real_len >= SIZE_MAX ||
ciphertext_real_len > ciphertext_len) {
zend_string_free(ciphertext);
zend_throw_exception(sodium_exception_ce, "arithmetic overflow", 0);
return;
}
PHP_SODIUM_ZSTR_TRUNCATE(ciphertext, (size_t) ciphertext_real_len);