Add PHP Privacy Examples

Signed-off-by: Nguyen Van Nguyen <[email protected]>

examples/README.md

@@ -0,0 +1,7 @@
+PHP Privacy Examples
+====================
+
+* [Key generation example](key-generation.php)
+* [Key reading example](key-reading.php)
+* [Cleartext signing example](cleartext-signing.php)
+* [Data signing & encryption example](literal-data.php)

examples/cleartext-signing.php

@@ -0,0 +1,244 @@
+<?php declare(strict_types=1);
+
+require_once dirname(__DIR__) . "/vendor/autoload.php";
+
+use OpenPGP\OpenPGP;
+
+$passphase = "{8P@|gFI8YJgnf>dl:4B21BJ|8[]d|SK";
+
+$keyData = <<<EOT
+-----BEGIN PGP PRIVATE KEY BLOCK-----
+Version: PHP Privacy v1
+Comment: https://github.com/web-of-trust/php-privacy
+
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+=0gnP
+-----END PGP PRIVATE KEY BLOCK-----
+EOT;
+$rsaPrivateKey = OpenPGP::decryptPrivateKey($keyData, $passphase);
+
+$keyData = <<<EOT
+-----BEGIN PGP PRIVATE KEY BLOCK-----
+Version: PHP Privacy v1
+Comment: https://github.com/web-of-trust/php-privacy
+
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+-----END PGP PRIVATE KEY BLOCK-----
+EOT;
+$dsaPrivateKey = OpenPGP::decryptPrivateKey($keyData, $passphase);
+
+$keyData = <<<EOT
+-----BEGIN PGP PRIVATE KEY BLOCK-----
+Version: PHP Privacy v1
+Comment: https://github.com/web-of-trust/php-privacy
+
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+=SjkS
+-----END PGP PRIVATE KEY BLOCK-----
+EOT;
+$ecDsaPrivateKey = OpenPGP::decryptPrivateKey($keyData, $passphase);
+
+$keyData = <<<EOT
+-----BEGIN PGP PRIVATE KEY BLOCK-----
+Version: PHP Privacy v1
+Comment: https://github.com/web-of-trust/php-privacy
+
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+ZW4gPG5ndXllbm52QGl3YXl2aWV0bmFtLmNvbT7CwAQEEBYKAHYFAmb2E+cWIQQg1g3zYHqLpa4c
+Mlee3olCZXjmlAkQnt6JQmV45pQ5FAAAAAAAEAAgc2FsdEBvcGVucGdwLm9yZ2wTXRwwELAPHhpj
+byBeuRETqMADGNYR+xHuwXRvlzjDAhsDBAsHCAkDFQgKBRYAAQIDAh4DAABKqwEAkK2Kxq2ldXmK
+D8IXT00vleQyErlllhAVShUzVtkoX98BAEXpEQcnsKhAb9x7JH3qSAv87MhhxymnQNKFG2bxKDUL
+x4sEZvYT5xIKKwYBBAGXVQEFAQEHQCZwzWJxIyMVyozKJFGR4jUFk70hPjlD0ff8sIbohTcFAwAI
+B/4HAwiSmYzvfPhVvOA8vh/tskeYjgWcBJrSwstNN9EiiRd4+O08gzcU8BMKiaUY8/DCi25qEyf0
+LgmiU4JLDQYvJT1c2U8wXCWlbmUr8Xfno7cvwrIEGBYKAGQFAmb2E+cWIQQg1g3zYHqLpa4cMlee
+3olCZXjmlAkQnt6JQmV45pQ5FAAAAAAAEAAgc2FsdEBvcGVucGdwLm9yZyVxOTjEwhAuOGV62ERW
+z0hTYzTdx7GLnIS2peI/h75/AhsMAACDowEAzqKJVZSgDPvR00paY+auufbPfDVI7p+zl0qXGqEU
+mcYBAEnGTXv34M4dxMkPuz8qAMKX+MiHwiA3vBflJthea+EE
+=bBuh
+-----END PGP PRIVATE KEY BLOCK-----
+EOT;
+$edDsaPrivateKey = OpenPGP::decryptPrivateKey($keyData, $passphase);
+
+echo "Sign cleartext message:" . PHP_EOL . PHP_EOL;
+$text = <<<EOT
+Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc felis neque, interdum id iaculis ut, faucibus a ex.
+Nam quam tortor, pharetra at dignissim ut, semper nec arcu. Vivamus mollis tortor vitae urna fringilla lacinia id
+vel nunc. Ut laoreet pellentesque mattis. Curabitur viverra enim venenatis, mattis velit sed, fringilla lacus. Donec
+nulla dui, vestibulum aliquam ultrices hendrerit, euismod iaculis magna. Praesent vitae ipsum id risus feugiat
+auctor ac eget tellus.
+
+What we need from the grocery store:
+- tofu
+- vegetables
+- noodles
+EOT;
+$signedMessage = OpenPGP::signCleartext($text, [
+    $rsaPrivateKey,
+    $dsaPrivateKey,
+    $ecDsaPrivateKey,
+    $edDsaPrivateKey,
+]);
+echo $armored = $signedMessage->armor() . PHP_EOL;
+
+echo "Verify signed message:" . PHP_EOL . PHP_EOL;
+$verifications = OpenPGP::verify($armored, [
+    $rsaPrivateKey->toPublic(),
+    $dsaPrivateKey->toPublic(),
+    $ecDsaPrivateKey->toPublic(),
+    $edDsaPrivateKey->toPublic(),
+]);
+foreach ($verifications as $verification) {
+    echo "Key ID: {$verification->getKeyID(true)}" . PHP_EOL;
+    echo "Signature is verified: {$verification->isVerified()}" .
+        PHP_EOL .
+        PHP_EOL;
+}
+
+echo "Sign detached cleartext message:" . PHP_EOL . PHP_EOL;
+$signature = OpenPGP::signDetachedCleartext($text, [
+    $rsaPrivateKey,
+    $dsaPrivateKey,
+    $ecDsaPrivateKey,
+    $edDsaPrivateKey,
+]);
+echo $armored = $signature->armor() . PHP_EOL;
+
+echo "Verify detached signature:" . PHP_EOL . PHP_EOL;
+$verifications = OpenPGP::verifyDetached($text, $armored, [
+    $rsaPrivateKey->toPublic(),
+    $dsaPrivateKey->toPublic(),
+    $ecDsaPrivateKey->toPublic(),
+    $edDsaPrivateKey->toPublic(),
+]);
+foreach ($verifications as $verification) {
+    echo "Key ID: {$verification->getKeyID(true)}" . PHP_EOL;
+    echo "Signature is verified: {$verification->isVerified()}" .
+        PHP_EOL .
+        PHP_EOL;
+}

examples/key-generation.php

@@ -0,0 +1,32 @@
+<?php declare(strict_types=1);
+
+require_once dirname(__DIR__) . "/vendor/autoload.php";
+
+use OpenPGP\OpenPGP;
+use OpenPGP\Common\Helper;
+use OpenPGP\Enum\CurveOid;
+use OpenPGP\Enum\KeyType;
+
+$userIDs = [
+    "Nguyen Van Nguyen <[email protected]>",
+    "Nguyen Van Nguyen <[email protected]>",
+];
+
+$passphase = Helper::generatePassword();
+echo "Generate passphase: {$passphase}" . PHP_EOL;
+
+echo "Generate RSA private key" . PHP_EOL;
+$privateKey = OpenPGP::generateKey($userIDs, $passphase, KeyType::Rsa);
+echo $privateKey->armor() . PHP_EOL;
+
+echo "Generate DSA private key" . PHP_EOL;
+$privateKey = OpenPGP::generateKey($userIDs, $passphase, KeyType::Dsa);
+echo $privateKey->armor() . PHP_EOL;
+
+echo "Generate EcDSA private key" . PHP_EOL;
+$privateKey = OpenPGP::generateKey($userIDs, $passphase, KeyType::Ecc, curve: CurveOid::Secp521r1);
+echo $privateKey->armor() . PHP_EOL;
+
+echo "Generate EdDSA private key" . PHP_EOL;
+$privateKey = OpenPGP::generateKey($userIDs, $passphase, KeyType::Ecc, curve: CurveOid::Ed25519);
+echo $privateKey->armor() . PHP_EOL;