我想使用AES CCM加密和解密一些数据!
我已经在同一个php文件中完成了这个操作。但是我希望能够将加密数据发送到另一个页面进行解密。但是不可能...尽管我发送了iv、标记和加密数据。
你有解决方案吗?
我遇到了以下错误:
警告:openssl_decrypt():在adddata1.php的第18行设置AEAD密码解密标记失败
致命错误:未捕获异常:OpenSSL错误:error:0607A082:digital envelope routines:EVP_CIPHER_CTX_set_key_length:invalid key length in adddata1.php:21 Stack trace: #0 {main} thrown in dddata1.php on line 21
First file :
$algo = 'aes-128-ccm';
$iv = random_bytes(openssl_cipher_iv_length($algo));
$key = "cd9344040aa9f9217871d46ee871c59c";
$data = '00000000010-3b57af';
$ciphertext = openssl_encrypt(
$data,
$algo,
$key,
OPENSSL_RAW_DATA,
$iv,
$tag
);
echo'<a href="adddata1?data='.$ciphertext.'&tag='.$tag.'&iv='.$iv.'">"decrypte"</a>';
?>
Second file :
$algo = 'aes-128-ccm';
$key = "cd9344040aa9f9217871d46ee871c59c";
$ciphertext = $_GET['data'];
$iv = $_GET['iv'];
$tag = $_GET['tag'];
// Change 1 bit in additional authenticated data
// $i = rand(0, mb_strlen($aad, '8bit') - 1);
// $aad[$i] = $aad[$i] ^ chr(1);
$decrypt = openssl_decrypt(
$ciphertext,
$algo,
$key,
OPENSSL_RAW_DATA,
$iv,
$tag
);
if (false === $decrypt) {
throw new Exception(sprintf(
"OpenSSL error: %s", openssl_error_string()
));
}
printf ("Decryption %s\n", $data === $decrypt ? 'Ok' : 'Failed');
printf("<br/>");
printf(base64_encode($tag));
printf("<br/>");
printf(base64_encode($iv));
printf("<br/>");
printf(base64_encode($ciphertext));
printf("<br/>");
printf($data);
?>
In one file :
<?php
$algo = 'aes-128-ccm';
$iv = random_bytes(openssl_cipher_iv_length($algo));
$key = "cd9344040aa9f9217871d46ee871c59c";
$data = '00000000010-3b57af';
$ciphertext = openssl_encrypt(
$data,
$algo,
$key,
OPENSSL_RAW_DATA,
$iv,
$tag
);
// Change 1 bit in additional authenticated data
// $i = rand(0, mb_strlen($aad, '8bit') - 1);
// $aad[$i] = $aad[$i] ^ chr(1);
$decrypt = openssl_decrypt(
$ciphertext,
$algo,
$key,
OPENSSL_RAW_DATA,
$iv,
$tag
);
if (false === $decrypt) {
throw new Exception(sprintf(
"OpenSSL error: %s", openssl_error_string()
));
}
printf ("Decryption %s\n", $data === $decrypt ? 'Ok' : 'Failed');
printf("<br/>");
printf(base64_encode($tag));
printf("<br/>");
printf(base64_encode($iv));
printf("<br/>");
printf(base64_encode($ciphertext));
printf("<br/>");
printf($data);
?>
Thanks