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1.1 misho 1: /*
2: * Copyright (C) 2015 Martin Willi
3: * Copyright (C) 2015 revosec AG
4: *
5: * This program is free software; you can redistribute it and/or modify it
6: * under the terms of the GNU General Public License as published by the
7: * Free Software Foundation; either version 2 of the License, or (at your
8: * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
9: *
10: * This program is distributed in the hope that it will be useful, but
11: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13: * for more details.
14: */
15:
16: #include <test_suite.h>
17:
18: #include <ip_packet.h>
19: #include <esp_packet.h>
20:
21: static iv_gen_t *ivgen;
22:
23: METHOD(aead_t, get_iv_gen, iv_gen_t*,
24: aead_t *this)
25: {
26: return ivgen;
27: }
28:
29: METHOD(iv_gen_t, get_iv, bool,
30: iv_gen_t *this, uint64_t seq, size_t size, uint8_t *buffer)
31: {
32: if (size != 8)
33: {
34: return FALSE;
35: }
36: memcpy(buffer, "\x10\x11\x12\x13\x14\x15\x16\x17", 8);
37: return TRUE;
38: }
39:
40: METHOD(iv_gen_t, allocate_iv, bool,
41: iv_gen_t *this, uint64_t seq, size_t size, chunk_t *chunk)
42: {
43: if (size != 8)
44: {
45: return FALSE;
46: }
47: *chunk = chunk_alloc(size);
48: return get_iv(this, seq, chunk->len, chunk->ptr);
49: }
50:
51: /**
52: * Appendix A draft-ietf-ipsecme-chacha20-poly1305-06
53: */
54: START_TEST(test_chapoly)
55: {
56: host_t *src, *dst;
57: ip_packet_t *icmp;
58: esp_packet_t *esp;
59: esp_context_t *ctx;
60: chunk_t data, exp;
61: uint32_t seq = 0;
62:
63: icmp = ip_packet_create(chunk_clone(chunk_from_chars(
64: 0x45,0x00,0x00,0x54,0xa6,0xf2,0x00,0x00,
65: 0x40,0x01,0xe7,0x78,0xc6,0x33,0x64,0x05,
66: 0xc0,0x00,0x02,0x05,0x08,0x00,0x5b,0x7a,
67: 0x3a,0x08,0x00,0x00,0x55,0x3b,0xec,0x10,
68: 0x00,0x07,0x36,0x27,0x08,0x09,0x0a,0x0b,
69: 0x0c,0x0d,0x0e,0x0f,0x10,0x11,0x12,0x13,
70: 0x14,0x15,0x16,0x17,0x18,0x19,0x1a,0x1b,
71: 0x1c,0x1d,0x1e,0x1f,0x20,0x21,0x22,0x23,
72: 0x24,0x25,0x26,0x27,0x28,0x29,0x2a,0x2b,
73: 0x2c,0x2d,0x2e,0x2f,0x30,0x31,0x32,0x33,
74: 0x34,0x35,0x36,0x37)));
75: ck_assert(icmp);
76:
77: src = host_create_from_string("203.0.113.153", 0);
78: dst = host_create_from_string("203.0.113.5", 0);
79: esp = esp_packet_create_from_payload(src, dst, icmp);
80:
81: ctx = esp_context_create(ENCR_CHACHA20_POLY1305, chunk_from_chars(
82: 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,
83: 0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,
84: 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,
85: 0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f,
86: 0xa0,0xa1,0xa2,0xa3),
87: AUTH_UNDEFINED, chunk_empty, FALSE);
88: while (seq != 4)
89: {
90: ck_assert(ctx->next_seqno(ctx, &seq));
91: }
92: INIT(ivgen,
93: .get_iv = _get_iv,
94: .allocate_iv = _allocate_iv,
95: .destroy = (void*)free,
96: );
97: ctx->get_aead(ctx)->get_iv_gen = _get_iv_gen;
98: ck_assert(esp->encrypt(esp, ctx, htonl(0x01020304)) == SUCCESS);
99:
100: data = esp->packet.get_data(&esp->packet);
101: exp = chunk_from_chars(0x01,0x02,0x03,0x04,0x00,0x00,0x00,0x05,
102: 0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,
103: 0x24,0x03,0x94,0x28,0xb9,0x7f,0x41,0x7e,
104: 0x3c,0x13,0x75,0x3a,0x4f,0x05,0x08,0x7b,
105: 0x67,0xc3,0x52,0xe6,0xa7,0xfa,0xb1,0xb9,
106: 0x82,0xd4,0x66,0xef,0x40,0x7a,0xe5,0xc6,
107: 0x14,0xee,0x80,0x99,0xd5,0x28,0x44,0xeb,
108: 0x61,0xaa,0x95,0xdf,0xab,0x4c,0x02,0xf7,
109: 0x2a,0xa7,0x1e,0x7c,0x4c,0x4f,0x64,0xc9,
110: 0xbe,0xfe,0x2f,0xac,0xc6,0x38,0xe8,0xf3,
111: 0xcb,0xec,0x16,0x3f,0xac,0x46,0x9b,0x50,
112: 0x27,0x73,0xf6,0xfb,0x94,0xe6,0x64,0xda,
113: 0x91,0x65,0xb8,0x28,0x29,0xf6,0x41,0xe0,
114: 0x76,0xAA,0xA8,0x26,0x6B,0x7F,0xB0,0xF7,
115: 0xB1,0x1B,0x36,0x99,0x07,0xE1,0xAD,0x43);
116: ck_assert_msg(chunk_equals(data, exp), "got %B\nexp %B", &data, &exp);
117:
118: esp->destroy(esp);
119: ctx->destroy(ctx);
120: ivgen->destroy(ivgen);
121: }
122: END_TEST
123:
124: Suite *chapoly_suite_create()
125: {
126: Suite *s;
127: TCase *tc;
128:
129: s = suite_create("chapoly");
130:
131: tc = tcase_create("ChaCha20Poly1305 ESP encryption");
132: tcase_add_test(tc, test_chapoly);
133: suite_add_tcase(s, tc);
134:
135: return s;
136: }