rsa keys may don't work, using dsa keys are more compatible
Linux:
ssh-keygen -t dsa
cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys
chmod 700 ~/.ssh/
chmod -R 600 ~/.ssh/*
PHP:
<?php
$methods = array(
'kex' => 'diffie-hellman-group1-sha1',
'hostkey' => 'ssh-dss',
'client_to_server' => array(
'crypt' => '3des-cbc',
'mac' => 'hmac-md5',
'comp' => 'none'),
'server_to_client' => array(
'crypt' => '3des-cbc',
'mac' => 'hmac-md5',
'comp' => 'none'));
$connect = ssh2_connect('127.0.0.1', 22, $methods);
if(ssh2_auth_pubkey_file($connect, 'username', '~/.ssh/id_dsa.pub', '~/.ssh/id_dsa'))
{
echo "Public Key Authentication Successful\n";
}
else
{
echo "Public Key Authentication Failed\n";
}
?>
