61 lines
2.2 KiB
Perl
61 lines
2.2 KiB
Perl
use strict;
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use warnings;
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use Test::More tests => 12;
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use Crypt::AuthEnc::EAX qw( eax_encrypt_authenticate eax_decrypt_verify );
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my $nonce = "random-nonce";
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my $key = "12345678901234561234567890123456";
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{
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my $pt = "plain_half";
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my $ct;
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my $m1 = Crypt::AuthEnc::EAX->new("AES", $key, $nonce);
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$m1->header_add("a");
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$m1->header_add("b");
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$m1->header_add("c");
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$ct = $m1->encrypt_add($pt);
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$ct .= $m1->encrypt_add($pt);
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my $tag = $m1->encrypt_done;
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is(unpack('H*', $ct), "4b88b8819481fbc39839890fedf3e31cef7ea2a9", "enc: ciphertext");
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is(unpack('H*', $tag), "f83d77e5cf20979b3325266ff2fe342c", "enc: tag");
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my $d1 = Crypt::AuthEnc::EAX->new("AES", $key, $nonce);
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$d1->header_add("abc");
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my $pt2 = $d1->decrypt_add($ct);
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my $tag2 = $d1->decrypt_done();
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is($pt2, "plain_halfplain_half", "dec1: plaintext");
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is(unpack('H*', $tag2), "f83d77e5cf20979b3325266ff2fe342c", "dec1: tag");
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my $d2 = Crypt::AuthEnc::EAX->new("AES", $key, $nonce);
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$d2->header_add("a");
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$d2->header_add("b");
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$d2->header_add("c");
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my $pt3;
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$pt3 .= $d2->decrypt_add(substr($ct,$_-1,1)) for (1..length($ct));
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my $tag3 = $d2->decrypt_done();
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is($pt3, "plain_halfplain_half", "dec2: plaintext");
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is(unpack('H*', $tag3), "f83d77e5cf20979b3325266ff2fe342c", "dec2: tag");
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}
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{
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my ($ct, $tag) = eax_encrypt_authenticate('AES', $key, $nonce, "abc", "plain_halfplain_half");
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is(unpack('H*', $ct), "4b88b8819481fbc39839890fedf3e31cef7ea2a9", "eax_encrypt_authenticate: ciphertext");
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is(unpack('H*', $tag), "f83d77e5cf20979b3325266ff2fe342c", "eax_encrypt_authenticate: tag");
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my $pt = eax_decrypt_verify('AES', $key, $nonce, "abc", $ct, $tag);
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is($pt, "plain_halfplain_half", "eax_decrypt_verify: plaintext");
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}
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{
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my ($ct, $tag) = eax_encrypt_authenticate('AES', $key, $nonce, "", "plain_halfplain_half");
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is(unpack('H*', $ct), "4b88b8819481fbc39839890fedf3e31cef7ea2a9", "eax_encrypt_authenticate: ciphertext (no header)");
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is(unpack('H*', $tag), "e5ad22aa2ba3b30cd50eb59593364f1b", "eax_encrypt_authenticate: tag (no header)");
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my $pt = eax_decrypt_verify('AES', $key, $nonce, "", $ct, $tag);
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is($pt, "plain_halfplain_half", "eax_decrypt_verify: plaintext (no header)");
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}
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