Unable to decrypt message from gnupg and PHP - php

I don't have any problem with Encryption but I'm unable to Decrypt the text.
The response which I receive is simply false. The code looks like this
putenv("GNUPGHOME=/tmp");
$gpg = new \gnupg();
$key = $gpg->import($user->pgp_key);
$gpg->addencryptkey($key['fingerprint']);
$encrypted_text = "
-----BEGIN PGP MESSAGE-----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=gKpy
-----END PGP MESSAGE-----";
$plain = $gpg->decrypt($encrypted_text);
var_dump($plain); return bool(false)
I'm using gnupg version and PHP version
GPGme Version 1.7.1
Extension Version 1.4.0
PHP 7.0.18
Any idea why decryption fail?

Related

How to connect PHP to MySQL using mysqli and SSL [duplicate]

Environment:
Ubuntu 14.04, PHP 5.5.9, MYSQL 5.6.30
From time to time I get an error
mysqli::real_connect(): SSL operation failed with code 1. OpenSSL
Error message:
error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number
Front/nginx is on one server and mysql is on a different server.
The error is not continuous, it happens randomly and I find those error messages in error log so I cannot really do full debug.
Sample:
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$this->objMySqli = mysqli_init();
mysqli_options ($this->objMySqli, MYSQLI_OPT_SSL_VERIFY_SERVER_CERT, true);
$this->objMySqli->ssl_set($this->SslKey, $this->SslCertificate, $this->SslCACertificate, null, null);
$link = $this->objMySqli->real_connect($this->Server, $this->Username, $this->Password, $this->Database, $this->Port);
if (!$link) {
throw new QMySqliDatabaseException("Unable to connect to Database", -1, null);
}
SSL Cipher:
It fails on this line:
$link = $this->objMySqli->real_connect($this->Server, $this->Username, $this->Password, $this->Database, $this->Port);
It is problem with mysql version 5.6.30,
I have updated to 5.6.32 and now this error is not happening anymore.
Upgrading didn't fix my problem, but I did find a new solution.
TLDR; Convert your PKCS#8 format keys to PKCS#1 format keys
openssl rsa -in example.com.server.key.pem -out example.com.server.key.pkcs1.pem
I ran into these bugs:
MySQL Bug 71271
MySQL Bug 64870
Essentially, if your private key is in PKCS#8 format instead of PKCS#1 format, MySQL will not "find" the private key.
A lot of Stack Overflow answers say rename the header and footer to include RSA in the header and footer like so:
From (PKCS#8 format)
-----BEGIN PRIVATE KEY-----
...
-----END PRIVATE KEY-----
To (PKCS#1 format)
-----BEGIN RSA PRIVATE KEY-----
...
-----END RSA PRIVATE KEY-----
However, this does not change the private key data between the header and footer. When using my PKCS#8 format key with the modified header and footer, no error occured at MySQL startup, but when I tried to connect with mysqli I got
error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number
By converting my private keys to PKCS#1 format, the keys worked and I could connect fine:
openssl rsa -in example.com.server.key.pem -out example.com.server.key.pkcs1.pem
Note that newer OpenSSL versions, at least 1.0.2j (what I was using) output PKCS#8 keys when using
openssl req -config "openssl.cnf" \
-keyout "private/example.com.server.key.pem" -new -sha256 \
-days 3652 -nodes -out "csr/example.com.server.csr.pem"
but using different options may output PKCS#1 keys (possibly -newkey rsa:2048, I haven't tested). Which would explain why only some people are experiencing this when using openssl generated private keys.
This problem occurred form me in MySQL 5.6.17 and 5.7.14, so it seems like the bugs are not fixed.

Generate RSA private SSH key in PHP

I have generated a SSH key with PHP OpenSSL:
$rsaKey = openssl_pkey_new(array(
'private_key_bits' => 4096,
'private_key_type' => OPENSSL_KEYTYPE_RSA,
));
$privKey = openssl_pkey_get_private($rsaKey);
openssl_pkey_export($privKey, $pem);
This results in $pem looking like this:
-----BEGIN PRIVATE KEY-----
MIIJQwIBADANBgkqhkiG9w0BAQEFAASCCS0wggkpAgEAAoICAQC8ggt6rVHYnqNP
...
e95+EXbPc6THyWt9pgwOsJltpylIYG4=
-----END PRIVATE KEY-----
But I cannot authenticate using this key. Before I can use it, I have to convert it using this command:
openssl rsa -in xxx.key -outform pem > xxx.key2
The result of the conversion is this:
-----BEGIN RSA PRIVATE KEY-----
MIIJKQIBAAKCAgEAvIILeq1R2J6jT+xjlK5NrOqFZTOJ4PByvgPQNbb2Kp7c3W15
...
o1t2KBkaSoR+JyOPOZakq5BLv8lgD3vefhF2z3Okx8lrfaYMDrCZbacpSGBu
-----END RSA PRIVATE KEY-----
Both are PEM format, but the second is a RSA private key. With the second, PHP can login. So I need a key that starts with RSA PRIVATE KEY, not just PRIVATE KEY. How can I create this with PHP and OpenSSL PHP implementation?
So, these are two different key types. You're looking for PKCS #1, but getting PKCS #8.
This appears to be related to the version of OpenSSL that PHP uses. Versions since 1.0 create a PKCS #8 file, and there's nothing the PHP developers want to do about it. The same issue arises when doing it from the command line with this command:
openssl req -new -keyout mykey.key -out mycertreq.csr -nodes -sha1 -newkey rsa:2048
You can try using an external library called phpseclib, though I haven't tried it myself:
<?php
include('Crypt/RSA.php');
$rsa = new Crypt_RSA();
$rsa->setPublicKeyFormat(CRYPT_RSA_PUBLIC_FORMAT_OPENSSH);
$result = $rsa->createKey();
echo $result["privatekey"];
?>

Verify digital signature using php

I have an email which is digitally signed.
email :
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
The below email has been digitally signed for test purposes. We will
now go on and save this signed email in our dms system.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (MingW32)
Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/
iQEcBAEBAgAGBQJTnwd9AAoJEEWjhuB1kNr9dQcH/2YeZlHEfK/KOPg8XhpOY+4l
3camfFVya8JIzLHsOzhhdSqIItDr7VlGDrjrMgPPiD1abyy9zhcqZ18Kh8sUuFJV
/TA434rrnMJC0xmSzXl4uo+UagyNyCjzwR4TFCGP4Ob6SzPl/jxfrcfO5yXEdF1I
X6wgQUmnb3ZLczdPVXsKpwpVIGqX7diwe1CAZKxCmjZo9rr/MmDLLl7AjYq/WQDT
uOYqXs2IasOIiTGpYrqexBpDn1qRUNiKVgFSRUTfTjYGXYij9P635WTfeE1bQrn1
HpT9hKhipYPkFcELAor7asqAcnE0lc4Oy9NV2bUryss8ic/pkhiXvlohA3MpCDA=
=+IbK
-----END PGP SIGNATURE-----
Public Key:
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v2.0.22 (MingW32)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=cn4r
-----END PGP PUBLIC KEY BLOCK-----
I want to write a program in php which will verify the digital signature. I have public key of the sender. I tried downloading GnuPG library from this site, but it is not getting downloaded.
Is there any other way? How should I do it? Any help will be appreciated.
PHP already brings a module for interfacing GnuPG, which is fairly easy to use.
GnuPG must already be installed, on Linux servers it usually is, on Windows machines I heard of getting PHP running together with GnuPG rather difficult.
For verifying signatures, use gnupg_verify(...), example from the linked PHP documentation:
<?php
$plaintext = "";
$gpg = new gnupg();
// clearsigned
$info = $gpg -> verify($signed_text,false,$plaintext);
print_r($info);
// detached signature
$info = $gpg -> verify($signed_text,$signature);
print_r($info);
?>
You will have to import the signer's public key before verifying, if not done already.

openssl_seal problems

I'm having some problems loading in a public key for encrypting using openssl_seal function in PHP...
I've created the public & private keys using the openSSL command line tool:
openssl genrsa -des3 -out private.pem 1024
openssl rsa -in private.pem -out public.pem -outform PEM -pubout
However, when I run it in my PHP code I get the following errors:
openssl_seal() [function.openssl-seal]: Don't know how to get public key from this private key
openssl_seal() [function.openssl-seal]: not a public key (1th member of pubkeys)
When I verify the public key using: openssl verify public.pem, I get:
unable to load certificate
1876:error:0906D06C:PEM routines:PEM_read_bio:no start line:.\crypto\pem\pem_lib
.c:648:Expecting: TRUSTED CERTIFICATE
Anyone know why this is happening?
PHP Code:
public function encrypt($valueToEncrypt, $publicKeyFile)
{
$pk = file_get_contents($publicKeyFile);
$publicKey = openssl_pkey_get_public($pk);
$encrypted = '';
$a_envelope = array();
$a_key = array($publicKey);
if (openssl_seal($valueToEncrypt, $encrypted, $a_envelope, $a_key) === FALSE)
{
while ($msg = openssl_error_string())
echo $msg . "<br />\n";
die('Failed to encrypt data!');
}
openssl_free_key($publicKey);
....
For anyone experiencing the same problem, the issue related to an install of xampp on windows. Running on the command line on a fresh install of just php worked fine.
In addition to StuffandBlah's answer: It is in fact related to the different OpenSSL versions in Apache and PHP in XAMPP on Windows. Here's a post of how to solve the problem (copying DLLs).

OpenSSL PHP Function doesn't work

I'm looking for days how to translate this command to OpenSLL php function:
$ openssl pkcs8 -inform DER -in aaa010101aaa_CSD_01.key -out AAA010101AAA.key.pem
Enter Password: a0123456789
This work perfect, but I can't (I don't know) use the correct function of PHP OpenSSL
http://www.php.net/manual/es/ref.openssl.php
I have made this for .cer working perfect:
command : openssl x509 -inform DER -outform PEM -in aaa010101aaa_CSD_01.cer -out AAA010101AAA.cer.pem
PHP equivalent:
function der2pem($der_data) {
$pem = chunk_split(base64_encode($der_data), 64, "\n");
$pem = "-----BEGIN CERTIFICATE-----\n".$pem."-----END CERTIFICATE-----\n";
return $pem;
}
$fp = fopen("llaves/aaa010101aaa_CSD_01.cer", "r");
$priv_key = fread($fp, 8192);
fclose($fp);
echo der2pem($priv_key);
It's perfect, giving it to me the PEM. But doesn't work for the .key, just for the .cer, I obtain on OpenSSL this for .key using the funcion on PHP:
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
The same function on php give me:
-----BEGIN-----
MIICxjBABgkqhkiG9w0BBQ0wMzAbBgkqhkiG9w0BBQwwDgQIgkLCyAP9+nQCAggA MBQGCCqGSIb3DQMHBAgTJc/0zgL+tASCAoBHumtbuHsY5IevnUwr1Ha5P+S3RpVS 6iYvoOvKs5L6bPE+fjCkLxset0e68NcyXDw3WO/qzfGkFVGBnC90gekWUiS7/2pf ltPeKjo8Fw7T4CgVWhtnVdPZmJWihY52FuIQ2HuyQYzH8K/SnjYP4GBkJKpdPCjy JNzjspfJPoOlfdOkj7URwvKH5RjsLGYkopjtdaqxS2pFfz6PPCSiFMn+Jo9Vkjwv 3d1b3X2SoYuYhV2g3XgHWHBQNqoas8Blhcw8OYNlntxcaNnx3Eb9YcCWSmNj7l+c pibvosXzEqVoat6PsJyUVzJQZBao15PnI438qomkprsCy6EvFSSXuIunMH7nVIGH gcS0TRxYpXPHY3cdQOdsJtxb4Ny1aCJqLQkHs2jbiLZ5mu+rmQUil3tLxfRd4Bje AYA3T1e5VVVha97BmNQVTbNfxj9wWvkmrearxJXTvvnML4f0ma830S/1AGmCGLb/ A2KlqHq9RxqJn1SdOuYQbcQTeGe/JRVOaJVGUKxJ2vbwjB/35cmGNLKYj4faZZgy jYpC3BqVeDcPGlPuMnoNkgrBfLDgDX+JV6tqqT2uMo76Wp6xYKmM41jkO1IAWpHR /R7d3aG2psL0wKkFSEXWxhX3SRLdurVcFLv6E6bEPHqHJR4QrvF2OUwpDhOZz9F/ Lz935gz5MQNRuVRtAVBAa2ZmjRbdCboL/qiL2MKibZLNRmKy3dqRdPOmnlKKBR8d cYQc4YwRm5dWuObO2tY68R4H43g7shw+POKSzvSPhAkzRRGExONVDJ6Zg/0iAUNe 0xYlsqKJyCJ1fg/b1AuFyyAnOhCO9ywUGiK7t92pZRgmwxEfVBDRNcbA
-----END -----
Any ideas?
There's a library that allows just that. It is called Chilkat2. I used it to do the same in Python without console.
Right now I'm trying to remove this dependency in my library because it's closed source and it can't be installed through package managers, it must be installed manually with the website instructions.
It works pretty well, however, so here's how you would do it, assuming you have the .key file, the password, and Chilkat2 PHP Extension installed:
include("chilkat_9_5_0.php"); //whatever version you download
privateKey = new CkPrivateKey();
privateKey.LoadPkcs8EncryptedFile('path/to/private.key',password)
pemString = privateKey.getPkcs8Pem()
Note: I created this code with the documentation, but I have never used Chilkat2 with PHP.

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