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Implement SecretKeyPacket output body

This commit is contained in:
Stephen Paul Weber 2011-07-25 12:46:50 -05:00
parent 69ade89111
commit c2c934fa6a
1 changed files with 40 additions and 0 deletions
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40
lib/openpgp.php
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@ -1010,6 +1010,46 @@ class OpenPGP_SecretKeyPacket extends OpenPGP_PublicKeyPacket {
unset($this->input);
}
function body() {
$bytes = parent::body() . chr($this->s2k_useage);
$secret_material = NULL;
if($this->s2k_usage == 255 || $this->s2k_usage == 254) {
$bytes .= chr($this->symmetric_type);
$bytes .= chr($this->s2k_type);
$bytes .= chr($this->s2k_hash_algorithm);
if($this->s2k_type == 1 || $this->s2k_type == 3) {
$bytes .= $this->s2k_salt;
}
if($this->s2k_type == 3) {
// TODO: reverse ugly bit manipulation
}
}
if($this->s2k_usage > 0) {
$bytes .= $this->encrypted_data;
} else {
$secret_material = '';
foreach(self::$secret_key_fields[$this->algorithm] as $f) {
$f = $this->key[$f];
$secret_material .= pack('n', OpenPGP::bitlength($f));
$secret_material .= $f;
}
$bytes .= $secret_material;
}
if($this->s2k_useage == 254) {
// TODO: SHA1 checksum
$bytes .= "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
} else {
// 2-octet checksum
// TODO: this design will not work for encrypted keys
$chk = 0;
for($i = 0; $i < strlen($secret_material); $i++) {
$chk = ($chk + ord($secret_material[$i])) % 65536;
}
$bytes .= pack('n', $chk);
}
return $bytes;
}
}
/**