summaryrefslogtreecommitdiffstats
path: root/lib/psa/delegated_attestation.c
blob: 399a3f102ca3e399cb3a7252185f1732f55ffbce (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
/*
 * Copyright (c) 2022, Arm Limited. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 *
 */

#include <string.h>

#include <delegated_attestation.h>
#include <psa/client.h>
#include <psa_manifest/sid.h>

#if !PLAT_RSS_NOT_SUPPORTED
psa_status_t
rss_delegated_attest_get_delegated_key(uint8_t   ecc_curve,
				       uint32_t  key_bits,
				       uint8_t  *key_buf,
				       size_t    key_buf_size,
				       size_t   *key_size,
				       uint32_t  hash_algo)
{
	psa_status_t status;
	psa_invec in_vec[] = {
		{&ecc_curve, sizeof(ecc_curve)},
		{&key_bits,  sizeof(key_bits)},
		{&hash_algo, sizeof(hash_algo)}
	};
	psa_outvec out_vec[] = {
		{key_buf, key_buf_size}
	};

	if (key_size == NULL) {
		return PSA_ERROR_INVALID_ARGUMENT;
	}

	status = psa_call(RSS_DELEGATED_SERVICE_HANDLE,
			  RSS_DELEGATED_ATTEST_GET_DELEGATED_KEY,
			  in_vec,  IOVEC_LEN(in_vec),
			  out_vec, IOVEC_LEN(out_vec));
	if (status == PSA_SUCCESS) {
		*key_size = out_vec[0].len;
	}

	return status;
}

psa_status_t
rss_delegated_attest_get_token(const uint8_t *dak_pub_hash,
			       size_t         dak_pub_hash_size,
			       uint8_t       *token_buf,
			       size_t         token_buf_size,
			       size_t        *token_size)
{
	psa_status_t status;
	psa_invec in_vec[] = {
		{dak_pub_hash, dak_pub_hash_size}
	};
	psa_outvec out_vec[] = {
		{token_buf, token_buf_size}
	};

	if (token_size == NULL) {
		return PSA_ERROR_INVALID_ARGUMENT;
	}

	status = psa_call(RSS_DELEGATED_SERVICE_HANDLE,
			  RSS_DELEGATED_ATTEST_GET_PLATFORM_TOKEN,
			  in_vec, IOVEC_LEN(in_vec),
			  out_vec, IOVEC_LEN(out_vec));
	if (status == PSA_SUCCESS) {
		*token_size = out_vec[0].len;
	}

	return status;
}


#else /* !PLAT_RSS_NOT_SUPPORTED */

static const uint8_t delegated_key[] = {
	0x20, 0x11, 0xC7, 0xF0, 0x3C, 0xEE, 0x43, 0x25, 0x17, 0x6E,
	0x52, 0x4F, 0x03, 0x3C, 0x0C, 0xE1, 0xE2, 0x1A, 0x76, 0xE6,
	0xC1, 0xA4, 0xF0, 0xB8, 0x39, 0xAA, 0x1D, 0xF6, 0x1E, 0x0E,
	0x8A, 0x5C, 0x8A, 0x05, 0x74, 0x0F, 0x9B, 0x69, 0xEF, 0xA7,
	0xEB, 0x1A, 0x41, 0x85, 0xBD, 0x11, 0x7F, 0x68
};

static const uint8_t platform_token[] = {
	0xD2, 0x84, 0x43, 0xA1, 0x01, 0x26, 0xA0, 0x59,
	0x02, 0xBE, 0xAA, 0x3A, 0x00, 0x01, 0x24, 0xFF,
	0x58, 0x20, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB,
	0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB,
	0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB,
	0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB,
	0xAB, 0xAB, 0x3A, 0x00, 0x01, 0x24, 0xFB, 0x58,
	0x20, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6,
	0xA7, 0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE,
	0xAF, 0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6,
	0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE,
	0xBF, 0x3A, 0x00, 0x01, 0x25, 0x00, 0x58, 0x21,
	0x01, 0xFA, 0x58, 0x75, 0x5F, 0x65, 0x86, 0x27,
	0xCE, 0x54, 0x60, 0xF2, 0x9B, 0x75, 0x29, 0x67,
	0x13, 0x24, 0x8C, 0xAE, 0x7A, 0xD9, 0xE2, 0x98,
	0x4B, 0x90, 0x28, 0x0E, 0xFC, 0xBC, 0xB5, 0x02,
	0x48, 0x3A, 0x00, 0x01, 0x24, 0xFA, 0x58, 0x20,
	0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
	0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB,
	0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
	0x3A, 0x00, 0x01, 0x24, 0xF8, 0x20, 0x3A, 0x00,
	0x01, 0x24, 0xF9, 0x00, 0x3A, 0x00, 0x01, 0x24,
	0xFD, 0x85, 0xA5, 0x05, 0x58, 0x20, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x60,
	0x01, 0x65, 0x42, 0x4C, 0x31, 0x5F, 0x32, 0x06,
	0x66, 0x53, 0x48, 0x41, 0x32, 0x35, 0x36, 0x02,
	0x58, 0x20, 0xF8, 0xB7, 0xCE, 0xAD, 0x9B, 0xE4,
	0x5A, 0x8F, 0x5C, 0x52, 0x6F, 0x0C, 0x05, 0x25,
	0x8F, 0xF3, 0xE9, 0x81, 0xDC, 0xBC, 0xF2, 0x05,
	0x7F, 0x33, 0xF6, 0xBB, 0xDC, 0xD9, 0x4D, 0xA2,
	0x34, 0x3A, 0xA5, 0x05, 0x58, 0x20, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x67,
	0x31, 0x2E, 0x37, 0x2E, 0x32, 0x2B, 0x30, 0x01,
	0x63, 0x42, 0x4C, 0x32, 0x06, 0x66, 0x53, 0x48,
	0x41, 0x32, 0x35, 0x36, 0x02, 0x58, 0x20, 0x3A,
	0xE5, 0x9E, 0x40, 0xA9, 0x6B, 0xD5, 0x29, 0x1C,
	0xAB, 0x7A, 0x5F, 0xBD, 0x1F, 0x9A, 0xA6, 0x52,
	0xFB, 0x77, 0x7D, 0xA3, 0xEC, 0x9C, 0x29, 0xBC,
	0xE6, 0x5B, 0x3B, 0x43, 0xFC, 0x9D, 0x26, 0xA5,
	0x05, 0x58, 0x20, 0xBF, 0xE6, 0xD8, 0x6F, 0x88,
	0x26, 0xF4, 0xFF, 0x97, 0xFB, 0x96, 0xC4, 0xE6,
	0xFB, 0xC4, 0x99, 0x3E, 0x46, 0x19, 0xFC, 0x56,
	0x5D, 0xA2, 0x6A, 0xDF, 0x34, 0xC3, 0x29, 0x48,
	0x9A, 0xDC, 0x38, 0x04, 0x67, 0x31, 0x2E, 0x35,
	0x2E, 0x30, 0x2B, 0x30, 0x01, 0x64, 0x52, 0x54,
	0x5F, 0x30, 0x06, 0x66, 0x53, 0x48, 0x41, 0x32,
	0x35, 0x36, 0x02, 0x58, 0x20, 0x47, 0x94, 0x9D,
	0x27, 0x33, 0x82, 0x45, 0x1A, 0xDD, 0x25, 0xF4,
	0x9A, 0x89, 0x6F, 0x5F, 0xD9, 0xB0, 0xE8, 0x14,
	0xD3, 0xA4, 0x9B, 0x53, 0xB0, 0x44, 0x0B, 0xCF,
	0x32, 0x1A, 0xC4, 0xD2, 0x65, 0xA5, 0x05, 0x58,
	0x20, 0xB3, 0x60, 0xCA, 0xF5, 0xC9, 0x8C, 0x6B,
	0x94, 0x2A, 0x48, 0x82, 0xFA, 0x9D, 0x48, 0x23,
	0xEF, 0xB1, 0x66, 0xA9, 0xEF, 0x6A, 0x6E, 0x4A,
	0xA3, 0x7C, 0x19, 0x19, 0xED, 0x1F, 0xCC, 0xC0,
	0x49, 0x04, 0x67, 0x30, 0x2E, 0x30, 0x2E, 0x37,
	0x2B, 0x30, 0x01, 0x64, 0x52, 0x54, 0x5F, 0x31,
	0x06, 0x66, 0x53, 0x48, 0x41, 0x32, 0x35, 0x36,
	0x02, 0x58, 0x20, 0xCD, 0x38, 0xBE, 0xC8, 0xB7,
	0xC0, 0x9E, 0xD5, 0x24, 0x30, 0xFE, 0xC8, 0xD0,
	0x19, 0x12, 0x56, 0xB2, 0x7A, 0xA5, 0x53, 0x6F,
	0xBC, 0x7D, 0x09, 0xCA, 0x11, 0xDD, 0x90, 0xD7,
	0xD6, 0x70, 0xFD, 0xA5, 0x05, 0x58, 0x20, 0xAA,
	0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
	0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
	0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
	0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0x04,
	0x60, 0x01, 0x60, 0x06, 0x66, 0x53, 0x48, 0x41,
	0x32, 0x35, 0x36, 0x02, 0x58, 0x20, 0x28, 0x3D,
	0x0C, 0x25, 0x22, 0x0C, 0x87, 0x46, 0xA0, 0x58,
	0x64, 0x6C, 0x0B, 0x14, 0x37, 0x39, 0x40, 0x9D,
	0x2D, 0x11, 0xD1, 0xCC, 0x54, 0x51, 0xB4, 0x29,
	0x22, 0xCD, 0x70, 0x92, 0x71, 0xC3, 0x3A, 0x00,
	0x01, 0x25, 0x01, 0x77, 0x77, 0x77, 0x77, 0x2E,
	0x74, 0x72, 0x75, 0x73, 0x74, 0x65, 0x64, 0x66,
	0x69, 0x72, 0x6D, 0x77, 0x61, 0x72, 0x65, 0x2E,
	0x6F, 0x72, 0x67, 0x3A, 0x00, 0x01, 0x24, 0xF7,
	0x71, 0x50, 0x53, 0x41, 0x5F, 0x49, 0x4F, 0x54,
	0x5F, 0x50, 0x52, 0x4F, 0x46, 0x49, 0x4C, 0x45,
	0x5F, 0x31, 0x3A, 0x00, 0x01, 0x24, 0xFC, 0x70,
	0x30, 0x36, 0x30, 0x34, 0x35, 0x36, 0x35, 0x32,
	0x37, 0x32, 0x38, 0x32, 0x39, 0x31, 0x30, 0x30,
	0x58, 0x40, 0x1E, 0x0D, 0x2B, 0xD8, 0x7A, 0xC9,
	0x2D, 0xCB, 0x73, 0xD1, 0x42, 0x2F, 0xBF, 0xDA,
	0x24, 0x71, 0xE2, 0xAF, 0xEA, 0x48, 0x60, 0x17,
	0x23, 0x75, 0x64, 0xAC, 0xCC, 0x23, 0xA2, 0x67,
	0xC4, 0xE7, 0x8F, 0x1C, 0x7C, 0x68, 0x49, 0x42,
	0x4D, 0xDA, 0xC6, 0xD6, 0x21, 0x1C, 0xAA, 0x00,
	0xDA, 0x1E, 0x68, 0x56, 0xA3, 0x48, 0xEE, 0xA7,
	0x92, 0xA9, 0x09, 0x83, 0x42, 0x04, 0x06, 0x9E,
	0x62, 0xBB
};

psa_status_t
rss_delegated_attest_get_delegated_key(uint8_t   ecc_curve,
				       uint32_t  key_bits,
				       uint8_t  *key_buf,
				       size_t    key_buf_size,
				       size_t   *key_size,
				       uint32_t  hash_algo)
{
	(void)ecc_curve;
	(void)key_bits;
	(void)hash_algo;

	if (key_buf_size < sizeof(delegated_key)) {
		return PSA_ERROR_BUFFER_TOO_SMALL;
	}

	(void)memcpy(key_buf, delegated_key, sizeof(delegated_key));
	*key_size = sizeof(delegated_key);

	return PSA_SUCCESS;
}
psa_status_t
rss_delegated_attest_get_token(const uint8_t *dak_pub_hash,
			       size_t         dak_pub_hash_size,
			       uint8_t       *token_buf,
			       size_t         token_buf_size,
			       size_t        *token_size)
{
	(void)dak_pub_hash;
	(void)dak_pub_hash_size;

	if (token_buf_size < sizeof(platform_token)) {
		return PSA_ERROR_BUFFER_TOO_SMALL;
	}

	(void)memcpy(token_buf, platform_token, sizeof(platform_token));
	*token_size = sizeof(platform_token);

	return PSA_SUCCESS;
}
#endif /* !PLAT_RSS_NOT_SUPPORTED */