试图按照这里的例子,但它给了我
Fatal error: Uncaught Error: Call to undefined function sodium_randombytes_buf()
最重要的是,密钥对似乎正在生成奇怪的字符串,例如:
kÿòjƒFDú{î—4]F◊߈u…®_•A∞+
.
这正常吗?
这是我的代码
<?php
// send
$message = 'Hi, this is Alice';
$alice_to_bob_kp = sodium_crypto_box_keypair_from_secretkey_and_publickey(
file_get_contents('./keys/sec-user-1_box_key.txt'),
file_get_contents('./keys/pub-user-2_box_key.txt')
);
$nonce = sodium_randombytes_buf(SODIUM_CRYPTO_BOX_NONCEBYTES);
$ciphertext = sodium_crypto_box(
$message,
$nonce,
$alice_to_bob_kp
);
// receive
$bob_to_alice_kp = sodium_crypto_box_keypair_from_secretkey_and_publickey(
// $bob_box_secretkey,
// $alice_box_publickey
file_get_contents('./keys/sec-user-2_box_key.txt'),
file_get_contents('./keys/pub-user-1_box_key.txt')
);
$nonce = sodium_randombytes_buf(SODIUM_CRYPTO_BOX_NONCEBYTES);
$plaintext = sodium_crypto_box_open(
$ciphertext,
$nonce,
$bob_to_alice_kp
);
if ($plaintext === false) {
die("Malformed message or invalid MAC");
}
die($plaintext);