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RSA.php

Pure-PHP PKCS#1 (v2.1) compliant implementation of RSA.

PHP version 5

Here's an example of how to encrypt and decrypt text with this library:


getPublicKey();

$plaintext = 'terrafrost';

$ciphertext = $public->encrypt($plaintext);

echo $private->decrypt($ciphertext);
?>

Here's an example of how to create signatures and verify signatures with this library:


getPublicKey();

$plaintext = 'terrafrost';

$signature = $private->sign($plaintext);

echo $public->verify($plaintext, $signature) ? 'verified' : 'unverified';
?>

One thing to consider when using this: so phpseclib uses PSS mode by default. Technically, id-RSASSA-PSS has a different key format than rsaEncryption. So should phpseclib save to the id-RSASSA-PSS format by default or the rsaEncryption format? For stand-alone keys I figure rsaEncryption is better because SSH doesn't use PSS and idk how many SSH servers would be able to decode an id-RSASSA-PSS key. For X.509 certificates the id-RSASSA-PSS format is used by default (unless you change it up to use PKCS1 instead)

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RSA: Pure-PHP PKCS#1 compliant implementation of RSA.

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RSA.php

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