PGP crypt form

[wzcocoon]

hello,
 I try to write a pgp scrypt that will take the public key from a person (pasted into a form) take my public key (saved into the php scrit) and crypte the messege before sending me a mail with the crypted message and another one with the public key of that persone (same subject or ref)

Code:

<form action="onsubit crypte before sending">
	Your Subject<br><input type="text" name="subject"><br>
	Your Public Key<br><textarea name="your-pgp-key"></textarea><br>
	your Message NOT crypted<br><textarea name="your-message-not-crypted"></textarea><br>
	<input type="submit">
</form>

ypour help will be more then appreciated

thanks