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use strict;
use warnings;
use Test::More tests => 74;

use Crypt::PK::DH qw(dh_encrypt dh_decrypt dh_sign_message dh_verify_message dh_sign_hash dh_verify_hash dh_shared_secret);

{
  my $k;

  $k = Crypt::PK::DH->new('t/data/cryptx_priv_dh1.bin');
  ok($k, 'load cryptx_priv_dh1.bin');
  ok($k->is_private, 'is_private cryptx_priv_dh1.bin');
  is($k->size, 256, 'size');
  is(uc($k->key2hash->{x}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key2hash');
  
  $k = Crypt::PK::DH->new('t/data/cryptx_priv_dh2.bin');
  ok($k, 'load cryptx_priv_dh2.bin');
  ok($k->is_private, 'is_private cryptx_priv_dh2.bin');
  
  $k = Crypt::PK::DH->new('t/data/cryptx_pub_dh1.bin');
  ok($k, 'load cryptx_pub_dh1.bin');
  ok(!$k->is_private, 'is_private cryptx_pub_dh1.bin');
  
  $k = Crypt::PK::DH->new('t/data/cryptx_pub_dh2.bin');
  ok($k, 'load cryptx_pub_dh2.bin');
  ok(!$k->is_private, 'is_private cryptx_pub_dh2.bin');
}

{
  my $k;

  $k = Crypt::PK::DH->new('t/data/cryptx_priv_dh_pg1.bin');
  ok($k, 'load cryptx_priv_dh_pg1.bin');
  ok($k->is_private, 'is_private cryptx_priv_dh_pg1.bin');
  is($k->size, 256, 'size');
  is(uc($k->key2hash->{x}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key2hash');
  
  $k = Crypt::PK::DH->new('t/data/cryptx_priv_dh_pg2.bin');
  ok($k, 'load cryptx_priv_dh_pg2.bin');
  ok($k->is_private, 'is_private cryptx_priv_dh_pg2.bin');
  
  $k = Crypt::PK::DH->new('t/data/cryptx_pub_dh_pg1.bin');
  ok($k, 'load cryptx_pub_dh_pg1.bin');
  ok(!$k->is_private, 'is_private cryptx_pub_dh_pg1.bin');
  
  $k = Crypt::PK::DH->new('t/data/cryptx_pub_dh_pg2.bin');
  ok($k, 'load cryptx_pub_dh_pg2.bin');
  ok(!$k->is_private, 'is_private cryptx_pub_dh_pg2.bin');
}

{
  my $pr1 = Crypt::PK::DH->new;
  $pr1->import_key('t/data/cryptx_priv_dh1.bin');
  my $pu1 = Crypt::PK::DH->new;
  $pu1->import_key('t/data/cryptx_pub_dh1.bin');
 
  my $ct = $pu1->encrypt("secret message");
  my $pt = $pr1->decrypt($ct);
  ok(length $ct > 100, 'encrypt ' . length($ct));
  is($pt, "secret message", 'decrypt');
 
  my $sig = $pr1->sign_message("message");
  ok(length $sig > 60, 'sign_message ' . length($sig));
  ok($pu1->verify_message($sig, "message"), 'verify_message');

  my $hash = pack("H*","04624fae618e9ad0c5e479f62e1420c71fff34dd");
  $sig = $pr1->sign_hash($hash, 'SHA1');
  ok(length $sig > 60, 'sign_hash ' . length($sig));
  ok($pu1->verify_hash($sig, $hash, 'SHA1'), 'verify_hash'); 
 
  my $pr2 = Crypt::PK::DH->new;
  $pr2->import_key('t/data/cryptx_priv_dh2.bin');
  my $pu2 = Crypt::PK::DH->new;
  $pu2->import_key('t/data/cryptx_pub_dh2.bin');
 
  my $ss1 = $pr1->shared_secret($pu2);
  my $ss2 = $pr2->shared_secret($pu1);
  is(unpack("H*",$ss1), unpack("H*",$ss2), 'shared_secret');
}

{
  my $pr1 = Crypt::PK::DH->new;
  $pr1->import_key('t/data/cryptx_priv_dh_pg1.bin');
  my $pu1 = Crypt::PK::DH->new;
  $pu1->import_key('t/data/cryptx_pub_dh_pg1.bin');
 
  my $ct = $pu1->encrypt("secret message");
  my $pt = $pr1->decrypt($ct);
  ok(length $ct > 100, 'encrypt ' . length($ct));
  is($pt, "secret message", 'decrypt');
 
  my $sig = $pr1->sign_message("message");
  ok(length $sig > 60, 'sign_message ' . length($sig));
  ok($pu1->verify_message($sig, "message"), 'verify_message');

  my $hash = pack("H*","04624fae618e9ad0c5e479f62e1420c71fff34dd");
  $sig = $pr1->sign_hash($hash, 'SHA1');
  ok(length $sig > 60, 'sign_hash ' . length($sig));
  ok($pu1->verify_hash($sig, $hash, 'SHA1'), 'verify_hash'); 
 
  my $pr2 = Crypt::PK::DH->new;
  $pr2->import_key('t/data/cryptx_priv_dh_pg2.bin');
  my $pu2 = Crypt::PK::DH->new;
  $pu2->import_key('t/data/cryptx_pub_dh_pg2.bin');
 
  my $ss1 = $pr1->shared_secret($pu2);
  my $ss2 = $pr2->shared_secret($pu1);
  is(unpack("H*",$ss1), unpack("H*",$ss2), 'shared_secret');
}

{
  my $pr1 = Crypt::PK::DH->new;
  $pr1->import_key_raw(pack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private','ike2048');
  my $pu1 = Crypt::PK::DH->new;
  $pu1->import_key_raw(pack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public','ike2048');
  ok($pr1, 'import_key_raw private1');
  ok($pu1, 'import_key_raw public1');
  ok($pr1->is_private, 'is_private private1');
  ok(!$pu1->is_private, 'is_private public1');
  is(uc(unpack('H*',$pr1->export_key_raw('private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
  is(uc(unpack('H*',$pr1->export_key_raw('public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
  is(uc(unpack('H*',$pu1->export_key_raw('public'))),'4B9ECB56202EDBC6578072A4519EBE625DE8972877462240F62393C59A6C04AA159E56505156E7DF645FF6EC588E0778A96B78B26A0793D90A4B5C5EC4C61EA69D21C630843ACC2BFD3864CD9DA9600BA8F1B7D8542B01F7251AA3AC257C7AC65A1D2BCF51A8E3E67D9544599B0956710E2B052CDA9B565CDD121CC123364B480E9E7E2237D3D6B5B1E200C7BF858C54CCD3175736DB28336210A16F8F0ACEC08847EF7905FAB7E97E626CFD13CBDF167441FEEB72CB6E7407DFC59F03249F79312A94DA89B1D61196B41E90C08D2C801FD7BEA02A47A1CDA1581F57BA700C1BCDDE6338718E19079055194CAF176D85464957D405B04CC3DD9756C211E11BF2');

  my $ct = $pu1->encrypt("secret message");
  my $pt = $pr1->decrypt($ct);
  ok(length $ct > 100, 'encrypt ' . length($ct));
  is($pt, "secret message", 'decrypt');
 
  my $sig = $pr1->sign_message("message");
  ok(length $sig > 60, 'sign_message ' . length($sig));
  ok($pu1->verify_message($sig, "message"), 'verify_message');

  my $hash = pack("H*","04624fae618e9ad0c5e479f62e1420c71fff34dd");
  $sig = $pr1->sign_hash($hash, 'SHA1');
  ok(length $sig > 60, 'sign_hash ' . length($sig));
  ok($pu1->verify_hash($sig, $hash, 'SHA1'), 'verify_hash'); 

   my $pr2 = Crypt::PK::DH->new;
  $pr2->import_key_raw(pack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private','ike2048');
  my $pu2 = Crypt::PK::DH->new;
  $pu2->import_key_raw(pack('H*','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'),'public','ike2048');

  my $ss1 = $pr1->shared_secret($pu2);
  my $ss2 = $pr2->shared_secret($pu1);
  is(unpack("H*",$ss1), unpack("H*",$ss2), 'shared_secret');
}

{
  my $k = Crypt::PK::DH->new;
  $k->generate_key(256);
  ok($k, 'generate_key');
  ok($k->is_private, 'is_private');
  ok($k->export_key('private'), 'export_key_pem pri');
  ok($k->export_key('public'), 'export_key_pem pub');
}

{
  my $k = Crypt::PK::DH->new;
  $k->generate_key({g => 2, p => 'FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381FFFFFFFFFFFFFFFF'});
  ok($k, 'generate_key');
  ok($k->is_private, 'is_private');
  ok($k->export_key('private'), 'export_key_pem pri gp');
  ok($k->export_key('public'), 'export_key_pem pub gp');
}

{
  my $k = Crypt::PK::DH->new;
  $k->generate_key('ike2048');
  ok($k, 'generate_key');
  ok($k->is_private, 'is_private');
  ok($k->export_key('private'), 'export_key_pem pri ike2048');
  ok($k->export_key('public'), 'export_key_pem pub ike2048');
}

{
  my $ct = dh_encrypt('t/data/cryptx_pub_dh1.bin', 'test string');
  ok($ct, 'dh_encrypt');
  my $pt = dh_decrypt('t/data/cryptx_priv_dh1.bin', $ct);
  ok($pt, 'dh_decrypt');
  my $sig = dh_sign_message('t/data/cryptx_priv_dh1.bin', 'test string');
  ok($sig, 'dh_sign_message');
  ok(dh_verify_message('t/data/cryptx_pub_dh1.bin', $sig, 'test string'), 'dh_verify_message');
  my $hash = pack("H*","04624fae618e9ad0c5e479f62e1420c71fff34dd");
  $sig = dh_sign_hash('t/data/cryptx_priv_dh1.bin', $hash, 'SHA1');
  ok($sig, 'dh_sign_hash');
  ok(dh_verify_hash('t/data/cryptx_pub_dh1.bin', $sig, $hash, 'SHA1'), 'dh_verify_hash');

  my $ss1 = dh_shared_secret('t/data/cryptx_priv_dh1.bin', 't/data/cryptx_pub_dh2.bin');
  my $ss2 = dh_shared_secret('t/data/cryptx_priv_dh2.bin', 't/data/cryptx_pub_dh1.bin');
  is(unpack("H*",$ss1), unpack("H*",$ss2), 'shared_secret');
}

{
  my $ct = dh_encrypt('t/data/cryptx_pub_dh_pg1.bin', 'test string');
  ok($ct, 'dh_encrypt');
  my $pt = dh_decrypt('t/data/cryptx_priv_dh_pg1.bin', $ct);
  ok($pt, 'dh_decrypt');
  my $sig = dh_sign_message('t/data/cryptx_priv_dh_pg1.bin', 'test string');
  ok($sig, 'dh_sign_message');
  ok(dh_verify_message('t/data/cryptx_pub_dh_pg1.bin', $sig, 'test string'), 'dh_verify_message');
  my $hash = pack("H*","04624fae618e9ad0c5e479f62e1420c71fff34dd");
  $sig = dh_sign_hash('t/data/cryptx_priv_dh_pg1.bin', $hash, 'SHA1');
  ok($sig, 'dh_sign_hash');
  ok(dh_verify_hash('t/data/cryptx_pub_dh_pg1.bin', $sig, $hash, 'SHA1'), 'dh_verify_hash');

  my $ss1 = dh_shared_secret('t/data/cryptx_priv_dh_pg1.bin', 't/data/cryptx_pub_dh_pg2.bin');
  my $ss2 = dh_shared_secret('t/data/cryptx_priv_dh_pg2.bin', 't/data/cryptx_pub_dh_pg1.bin');
  is(unpack("H*",$ss1), unpack("H*",$ss2), 'shared_secret');
}