Project

General

Profile

Trusted Platform Module 2.0 » History » Version 67

Andreas Steffen, 11.12.2017 23:00

1 17 Andreas Steffen
h1. Trusted Platform Module 2.0
2 1 Andreas Steffen
3 6 Andreas Steffen
{{>toc}}
4 6 Andreas Steffen
5 51 Andreas Steffen
h2. Connect to a TPM 2.0 Device
6 1 Andreas Steffen
7 51 Andreas Steffen
h3. Install the TSS2 Software Stack and tpm2 Tools
8 51 Andreas Steffen
9 5 Andreas Steffen
In order to connect to a TPM 2.0 hardware or firmware device, the TSS2 software stack developed by Intel is needed. Because the official Ubuntu *tpm2-tss* package is rather outdated (e.g. since version 0.98 the TCTI interface to the TPM 2.0 resource manager has changed several times), strongSwan is currently based on a recent version directly drawn from the TPM2-TSS git repository https://github.com/01org/TPM2.0-TSS. Avoid any TCTI interface incompatibilities by fetching the latest *tpm2-tools* version from https://github.com/01org/tpm2.0-tools as well.
10 1 Andreas Steffen
11 11 Andreas Steffen
Build and install both the *tpm2-tss* stack and the *tpm2.0-tools*, start the *tpm2-resourcemgr* as a service in the background and try to connect to the TPM 2.0 by listing e.g. the contents of the SHA-1 bank of PCR registers
12 1 Andreas Steffen
13 7 Andreas Steffen
   
14 7 Andreas Steffen
 tpm2_listpcrs -g 0x0004
15 3 Andreas Steffen
16 18 Andreas Steffen
<pre>
17 18 Andreas Steffen
Bank/Algorithm: TPM_ALG_SHA1(0x0004)
18 3 Andreas Steffen
PCR_00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
19 3 Andreas Steffen
PCR_01: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20 3 Andreas Steffen
PCR_02: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
21 3 Andreas Steffen
PCR_03: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
22 3 Andreas Steffen
PCR_04: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
23 3 Andreas Steffen
PCR_05: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
24 3 Andreas Steffen
PCR_06: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
25 3 Andreas Steffen
PCR_07: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
26 3 Andreas Steffen
PCR_08: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
27 3 Andreas Steffen
PCR_09: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
28 3 Andreas Steffen
PCR_10: a9 45 e7 0f 42 a2 79 f0 78 ca d4 64 60 39 39 da 9d 6a d1 a5
29 3 Andreas Steffen
PCR_11: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30 3 Andreas Steffen
PCR_12: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
31 3 Andreas Steffen
PCR_13: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
32 3 Andreas Steffen
PCR_14: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
33 3 Andreas Steffen
PCR_15: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
34 3 Andreas Steffen
PCR_16: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
35 3 Andreas Steffen
PCR_17: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
36 3 Andreas Steffen
PCR_18: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
37 3 Andreas Steffen
PCR_19: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
38 3 Andreas Steffen
PCR_20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
39 1 Andreas Steffen
PCR_21: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
40 1 Andreas Steffen
PCR_22: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
41 1 Andreas Steffen
PCR_23: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
42 18 Andreas Steffen
</pre>
43 1 Andreas Steffen
44 1 Andreas Steffen
A manual showing all *tpm2-tools* functions with their arguments can be found "here":https://github.com/01org/tpm2.0-tools/blob/master/manual.
45 51 Andreas Steffen
46 51 Andreas Steffen
h3. Enable the strongSwan tpm Plugin
47 51 Andreas Steffen
48 51 Andreas Steffen
The strongSwan libtpmtss *tpm* plugin and the TSS2 interface are enabled and built with the following options
49 51 Andreas Steffen
50 51 Andreas Steffen
  ./configure --enable-tss-tss2 --enable tpm  ...
51 7 Andreas Steffen
52 7 Andreas Steffen
h2. TPM 2.0 Algorithm IDs
53 7 Andreas Steffen
54 8 Andreas Steffen
h3. Hash Algorithms
55 8 Andreas Steffen
56 7 Andreas Steffen
|0x0004 |SHA-1     |
57 7 Andreas Steffen
|0x000B |SHA-2_256 |
58 7 Andreas Steffen
|0x000C |SHA-2_384 |
59 1 Andreas Steffen
|0x000D |SHA-2_512 |
60 7 Andreas Steffen
61 28 Andreas Steffen
Currently available TPM 2.0 devices like the Infineon *Optiga SLB 9670 VQ2.0* hardware TPM or Intel's *PTT* firmware TPM integrated into the Management Engine starting with the 4th generation (Haswell) of the *Core* processor family, support the *SHA-1* and *SHA-2_256* algorithms.
62 1 Andreas Steffen
63 8 Andreas Steffen
h3. Public Key Types
64 8 Andreas Steffen
65 8 Andreas Steffen
|0x0001 |RSA |
66 8 Andreas Steffen
|0x0023 |ECC |
67 1 Andreas Steffen
68 22 Andreas Steffen
Currently RSA keys have a modulus size of 2048 bits and ECC keys are based on the 256 bit NIST curve.
69 22 Andreas Steffen
70 11 Andreas Steffen
h3. Signature Schemes
71 11 Andreas Steffen
72 11 Andreas Steffen
|0x0014 |RSASSA |
73 11 Andreas Steffen
|0x0016 |RSAPSS |
74 9 Andreas Steffen
|0x0018 |ECDSA  |
75 64 Andreas Steffen
76 66 Andreas Steffen
h2. TPM 2.0 Attributes
77 66 Andreas Steffen
78 64 Andreas Steffen
h3. Object Attributes
79 64 Andreas Steffen
80 64 Andreas Steffen
|0x00002 |fixedTPM             |
81 64 Andreas Steffen
|0x00004 |stClear              |
82 64 Andreas Steffen
|0x00010 |fixedParent          |
83 64 Andreas Steffen
|0x00020 |sensitiveDataOrigin  |
84 64 Andreas Steffen
|0x00040 |userWithAuth         |
85 64 Andreas Steffen
|0x00080 |adminWithPolicy      |
86 64 Andreas Steffen
|0x00400 |noDA                 |
87 64 Andreas Steffen
|0x00800 |encryptedDuplication |
88 64 Andreas Steffen
|0x10000 |restricted           |
89 64 Andreas Steffen
|0x20000 |decrypt              |
90 64 Andreas Steffen
|0x40000 |sign                 |
91 64 Andreas Steffen
92 65 Andreas Steffen
h3. NV Index Attributes
93 65 Andreas Steffen
94 65 Andreas Steffen
|0x00000001 |NV_PPWRITE        |
95 65 Andreas Steffen
|0x00000002 |NV_OWNERWRITE     |
96 65 Andreas Steffen
|0x00000004 |NV_AUTHWRITE      |
97 65 Andreas Steffen
|0x00000008 |NV_POLICYWRITE    |
98 65 Andreas Steffen
|0x000000F0 |NT                |
99 65 Andreas Steffen
|0x00000400 |NV_POLICY_DELETE  |
100 65 Andreas Steffen
|0x00000800 |NV_WRITELOCKED    |
101 65 Andreas Steffen
|0x00001000 |NV_WRITEALL       |
102 65 Andreas Steffen
|0x00002000 |NV_WRITEDEFINE    |
103 65 Andreas Steffen
|0x00004000 |NV_WRITE_STCLEAR  |
104 65 Andreas Steffen
|0x00008000 |NV_GLOBALLOCK     |
105 65 Andreas Steffen
|0x00010000 |NV_PPEREAD        |
106 65 Andreas Steffen
|0x00020000 |NV_OWNERREAD      |
107 65 Andreas Steffen
|0x00040000 |NV_AUTHREAD       |
108 65 Andreas Steffen
|0x00080000 |NV_POLICYREAD     |
109 65 Andreas Steffen
|0x02000000 |NV_NO_DA          |
110 65 Andreas Steffen
|0x04000000 |NV_ORDERLY        |
111 65 Andreas Steffen
|0x08000000 |NV_CLEAR_STCLEAR  |
112 65 Andreas Steffen
|0x10000000 |NV_READLOCKED     |
113 65 Andreas Steffen
|0x20000000 |NV_WRITTEN        |
114 65 Andreas Steffen
|0x40000000 |NV_PLATFORMCREATE |
115 65 Andreas Steffen
|0x80000000 |NV_READ_STCLEAR   |
116 64 Andreas Steffen
117 20 Andreas Steffen
h2. Derive a Persistent RSA Endorsement Key
118 1 Andreas Steffen
119 25 Andreas Steffen
The following tpm2-tools command derives a 2048 bit RSA Endorsement Key (EK) in a deterministic way from the secret _Endorsement Primary Seed_ *unique* to each TPM device and makes the key persistent in the non-volatile memory of the TPM under the object handle 0x81010001
120 11 Andreas Steffen
121 24 Andreas Steffen
 tpm2_getpubek -H 0x81010001 -g 0x0001 -f ek_rsa.pub
122 9 Andreas Steffen
123 27 Andreas Steffen
The EK public key stored in the ek_rsa.pub file is encoded in a TPM 2.0 proprietary format but the key can be exported from the TPM in the regular PKCS#1 format using the *pki* tool
124 9 Andreas Steffen
125 50 Andreas Steffen
 pki --pub --keyid 0x81010001 --outform pem > ek_rsa_pub.pem
126 9 Andreas Steffen
127 9 Andreas Steffen
The fingerprint of the RSA EK public key can be displayed with the command
128 9 Andreas Steffen
129 9 Andreas Steffen
 pki --print --type pub --in ek_rsa_pub.pem
130 9 Andreas Steffen
  pubkey:    RSA 2048 bits
131 9 Andreas Steffen
  keyid:     d1:f1:49:84:36:44:e6:8c:d2:a6:69:ee:fd:b5:7d:56:2f:39:ff:58
132 1 Andreas Steffen
  subjkey:   c1:1b:8e:f1:c7:f8:8a:1e:9a:dd:7e:82:2f:7a:a3:f5:c0:e2:4d:7d
133 1 Andreas Steffen
134 20 Andreas Steffen
h2. Generate a Persistent RSA Attestation Key
135 11 Andreas Steffen
136 12 Andreas Steffen
A 2048 bit RSA Attestation Key (AK) bound to the EK with handle 0x81010001 can be created and made persistent under the handle 0x81010002 with the following tpm2-tools command
137 1 Andreas Steffen
138 46 Andreas Steffen
 tpm2_getpubak -E 0x81010001 -g 0x0001 -D 0x000B -s 0x0014 -k 0x81010002 -P 123456 -f ak_rsa2.pub -n ak_rsa2.name
139 12 Andreas Steffen
140 46 Andreas Steffen
This AK key is protected by the PIN (-P parameter) *123456*. The AK public key can now be exported in PKCS#1 format from the TPM using the *pki* tool
141 12 Andreas Steffen
142 50 Andreas Steffen
 pki --pub --keyid 0x81010002 --outform pem > ak_rsa_pub.pem
143 12 Andreas Steffen
144 12 Andreas Steffen
The fingerprint of the RSA AK public key can be displayed with the command
145 12 Andreas Steffen
146 12 Andreas Steffen
 pki --print --type pub --in ak_rsa_pub.pem
147 12 Andreas Steffen
  pubkey:    RSA 2048 bits
148 12 Andreas Steffen
  keyid:     71:21:f5:d4:7e:59:4a:88:16:ca:57:85:98:3d:36:a7:b1:d5:75:fa
149 12 Andreas Steffen
  subjkey:   f4:9e:85:7d:de:4e:67:f5:fb:87:03:98:67:3f:20:7c:f3:3f:2b:66
150 11 Andreas Steffen
151 20 Andreas Steffen
h2. Derive a Persistent ECC Endorsement Key
152 1 Andreas Steffen
153 25 Andreas Steffen
The following tpm2-tools command derives a 256 bit ECC Endorsement Key (EK) in a deterministic way from the secret _Endorsement Primary Seed_ *unique* to each TPM device and makes the key persistent in the non-volatile memory of the TPM under the object handle 0x81010003:
154 1 Andreas Steffen
155 24 Andreas Steffen
 tpm2_getpubek -H 0x81010003 -g 0x0023 -f ek_ecc.pub
156 9 Andreas Steffen
157 67 Andreas Steffen
Without exporting the public key first the fingerprint of the ECC EK private key can be directly displayed with the command
158 9 Andreas Steffen
159 67 Andreas Steffen
 pki --print --type priv --keyid 0x81010003
160 9 Andreas Steffen
  pubkey:    ECDSA 256 bits
161 9 Andreas Steffen
  keyid:     7f:39:ca:e6:83:9b:a9:06:97:40:27:6a:e1:bf:8f:f5:9f:d3:a5:31
162 9 Andreas Steffen
  subjkey:   8b:43:4d:5e:5e:7b:ff:c2:54:4d:ef:88:cb:0c:7c:47:75:28:4d:09
163 9 Andreas Steffen
164 20 Andreas Steffen
h2. Generate a Persistent ECC Attestation Key
165 13 Andreas Steffen
166 13 Andreas Steffen
A 256 bit ECC Attestation Key (AK) bound to the EK with handle 0x81010003 can be created and made persistent under the handle 0x81010004 with the following tpm2-tools command
167 13 Andreas Steffen
168 15 Andreas Steffen
 tpm2_getpubak -E 0x81010003 -g 0x0023 -D 0x000B -s 0x0018 -k 0x81010004 -f ak_ecc4.pub -n ak_ecc4.name
169 13 Andreas Steffen
170 13 Andreas Steffen
The AK public key can be exported in PKCS#1 format from the TPM using the *pki* tool
171 13 Andreas Steffen
172 50 Andreas Steffen
 pki --pub --keyid 0x81010004 > ak_ecc_pub.der
173 13 Andreas Steffen
174 52 Andreas Steffen
The fingerprint of the ECC AK public key can be displayed with the command
175 13 Andreas Steffen
176 14 Andreas Steffen
 pki --print --type pub --in ak_ecc_pub.der
177 1 Andreas Steffen
  pubkey:    ECDSA 256 bits
178 1 Andreas Steffen
  keyid:     71:49:7c:42:41:e7:c6:81:bc:31:73:f0:0f:7e:4a:e1:2d:53:00:38
179 1 Andreas Steffen
  subjkey:   c7:0e:63:f8:7f:6f:f6:55:00:e5:05:7f:5a:3e:6b:6c:e7:d2:d5:13
180 15 Andreas Steffen
181 20 Andreas Steffen
h2. Generate Another ECC Attestation Key
182 15 Andreas Steffen
183 15 Andreas Steffen
Multiple AK keys bound to a common EK key can be generated
184 15 Andreas Steffen
185 15 Andreas Steffen
 tpm2_getpubak -E 0x81010003 -g 0x0023 -D 0x000B -s 0x0018 -k 0x81010005 -f ak_ecc5.pub -n ak_ecc5.name
186 15 Andreas Steffen
187 15 Andreas Steffen
The AK public key can be exported in PKCS#1 format from the TPM using the *pki* tool
188 15 Andreas Steffen
189 50 Andreas Steffen
 pki --pub --keyid 0x81010005 > ak_ecc5_pub.der
190 15 Andreas Steffen
191 15 Andreas Steffen
The fingerprint of the second ECC AK public key can be displayed with the command
192 15 Andreas Steffen
193 15 Andreas Steffen
 pki --print --type pub --in ak_ecc5_pub.der
194 15 Andreas Steffen
  pubkey:    ECDSA 256 bits
195 15 Andreas Steffen
  keyid:     c4:b4:9c:95:27:9e:ce:81:2f:98:42:c8:1b:f0:54:ff:d4:d1:24:34
196 15 Andreas Steffen
  subjkey:   cf:44:f4:f7:9d:97:09:ad:b1:09:3a:8e:6f:23:eb:9f:2c:35:94:c9
197 15 Andreas Steffen
198 19 Andreas Steffen
h2. Remove a Persistent Key Object
199 15 Andreas Steffen
200 15 Andreas Steffen
Since the non-volatile memory of the TPM is limited any persistent key object can be removed to free storage space.
201 15 Andreas Steffen
The following tpm2-tools command removes the ECC AK key with persistent handle 0x81010005
202 15 Andreas Steffen
203 1 Andreas Steffen
 tpm2_evictcontrol -A o -H 0x81010005 -S 0x81010005
204 18 Andreas Steffen
205 18 Andreas Steffen
h2. List Persistent Objects
206 18 Andreas Steffen
207 18 Andreas Steffen
The following tpm2-tools command lists all persistent objects stored by the TPM in non-volatile memory
208 18 Andreas Steffen
209 18 Andreas Steffen
 tpm2_listpersistent
210 18 Andreas Steffen
211 18 Andreas Steffen
<pre>
212 18 Andreas Steffen
6 persistent objects defined.
213 18 Andreas Steffen
214 18 Andreas Steffen
0. Persistent handle: 0x81000001
215 18 Andreas Steffen
{
216 18 Andreas Steffen
        Type: 0x23
217 18 Andreas Steffen
        Hash algorithm(nameAlg): 0xb
218 18 Andreas Steffen
        Attributes: 0x30072
219 18 Andreas Steffen
}
220 18 Andreas Steffen
1. Persistent handle: 0x81000002
221 18 Andreas Steffen
{
222 18 Andreas Steffen
        Type: 0x23
223 18 Andreas Steffen
        Hash algorithm(nameAlg): 0xb
224 18 Andreas Steffen
        Attributes: 0x60072
225 18 Andreas Steffen
}
226 18 Andreas Steffen
2. Persistent handle: 0x81010001
227 18 Andreas Steffen
{
228 18 Andreas Steffen
        Type: 0x1
229 18 Andreas Steffen
        Hash algorithm(nameAlg): 0xb
230 18 Andreas Steffen
        Attributes: 0x300b2
231 18 Andreas Steffen
}
232 18 Andreas Steffen
3. Persistent handle: 0x81010002
233 18 Andreas Steffen
{
234 18 Andreas Steffen
        Type: 0x1
235 18 Andreas Steffen
        Hash algorithm(nameAlg): 0xb
236 18 Andreas Steffen
        Attributes: 0x50072
237 18 Andreas Steffen
}
238 18 Andreas Steffen
4. Persistent handle: 0x81010003
239 18 Andreas Steffen
{
240 18 Andreas Steffen
        Type: 0x23
241 18 Andreas Steffen
        Hash algorithm(nameAlg): 0xb
242 18 Andreas Steffen
        Attributes: 0x300b2
243 18 Andreas Steffen
}
244 18 Andreas Steffen
5. Persistent handle: 0x81010004
245 18 Andreas Steffen
{
246 18 Andreas Steffen
        Type: 0x23
247 18 Andreas Steffen
        Hash algorithm(nameAlg): 0xb
248 18 Andreas Steffen
        Attributes: 0x50072
249 18 Andreas Steffen
}
250 18 Andreas Steffen
</pre>
251 13 Andreas Steffen
252 41 Andreas Steffen
h2. Create a Demo Root CA
253 41 Andreas Steffen
254 41 Andreas Steffen
The following *pki* command creates a 256 bit ECDSA private key for the Demo CA
255 41 Andreas Steffen
<pre>
256 41 Andreas Steffen
pki --gen --type ecdsa --size 256 --outform pem > demoCaKey.pem
257 41 Andreas Steffen
</pre>
258 41 Andreas Steffen
259 41 Andreas Steffen
Next we create a self-signed Root CA certificate
260 41 Andreas Steffen
<pre>
261 41 Andreas Steffen
pki --self --ca --type ecdsa --in demoCaKey.pem --dn="C=US, O=TNC Demo, CN=TNC Demo CA" --lifetime 3652 --outform pem > demoCaCert.pem
262 41 Andreas Steffen
</pre>
263 41 Andreas Steffen
264 42 Andreas Steffen
h2. Issue an RSA AIK Certificate
265 41 Andreas Steffen
266 42 Andreas Steffen
Based on the RSA AK public key exported from the TPM, the following *pki* command generates an Attestation Identity Key (AIK) certificate signed by the Demo CA
267 41 Andreas Steffen
<pre>
268 41 Andreas Steffen
pki --issue --cacert demoCaCert.pem --cakey demoCaKey.pem --type pub --in ak_rsa_pub.der --dn "C=US, O=TNC Demo, OU=AIK RSA, CN=raspi5.example.com" --san raspi5.example.com --lifetime 3651 > raspi5_ak_rsa_Cert.der
269 41 Andreas Steffen
</pre>
270 41 Andreas Steffen
271 42 Andreas Steffen
h2. Issue an ECC AIK Certificate
272 41 Andreas Steffen
273 42 Andreas Steffen
Based on the ECC AK public key exported from the TPM, the following *pki* command generates an Attestation Identity Key (AIK) certificate signed by the Demo CA
274 41 Andreas Steffen
<pre>
275 41 Andreas Steffen
pki --issue --cacert demoCaCert.pem --cakey demoCaKey.pem --type pub --in ak_ecc_pub.der --dn "C=US, O=TNC Demo, OU=AIK ECC, CN=raspi5.example.com" --san raspi5.example.com --lifetime 3651 > raspi5_ak_ecc_Cert.der
276 41 Andreas Steffen
</pre>
277 47 Andreas Steffen
278 49 Andreas Steffen
Many certification authorities issue certificates based on PKCS#10 certificate requests. This approach is also possible. First a certificate request is generated on the host the TPM resides on
279 47 Andreas Steffen
<pre>
280 50 Andreas Steffen
 pki --req --keyid 0x81010004 --dn "C=US, O=TNC Demo, OU=AIK ECC, CN=raspi5.example.com" --san raspi5.example.com > ak_ecc_req.der
281 47 Andreas Steffen
</pre>
282 49 Andreas Steffen
When you are prompted for a smartcard PIN just press <enter> since this TPM private key is not protected by a PIN. In a second step the CA issues the AIK certificate based on the PKCS#10 certificate request
283 49 Andreas Steffen
<pre>
284 47 Andreas Steffen
pki --issue --cacert demoCaCert.pem --cakey demoCaKey.pem --type pkcs10 --in ak_ecc_req.der --lifetime 3651 > raspi5_ak_ecc_Cert.der
285 47 Andreas Steffen
</pre>
286 47 Andreas Steffen
287 54 Andreas Steffen
h2. Store the ECC AIK Certificate in the NV RAM of the TPM
288 54 Andreas Steffen
289 55 Andreas Steffen
A TPM 2.0 has a certain amount of Non Volatile Random Access Memory (NV RAM) that can be used to store arbitrary data, e.g. the X.509 certificates matching the persistent keys. IF both the certificates and keys are persisted in the TPM then the system disk of the host can be reformatted at any time without loosing the machine or user credentials.As with smartcards the needed amount of memory must be reserved first so we check the size of the X.509 ECC certificate
290 54 Andreas Steffen
<pre>
291 54 Andreas Steffen
ls -l raspi5_ak_ecc_Cert.der
292 63 Andreas Steffen
-rw-r--r-- 1 root root 449 Feb 17  2017 raspi5_ak_ecc_Cert.der
293 54 Andreas Steffen
</pre>
294 54 Andreas Steffen
295 54 Andreas Steffen
We then define a memory location with a size of 449 bytes that can be accessed via the handle 0x01800004 which is also called the NV index
296 54 Andreas Steffen
<pre>
297 54 Andreas Steffen
tpm2_nvdefine -x 0x01800004 -a 0x40000001 -s 449 -t 0x2000A
298 54 Andreas Steffen
</pre>
299 54 Andreas Steffen
300 54 Andreas Steffen
Then we write the certificate file to the NV RAM destination
301 54 Andreas Steffen
<pre>
302 54 Andreas Steffen
tpm2_nvwrite -x 0x01800004 -a 0x40000001 -f raspi5_ak_ecc_Cert.der
303 54 Andreas Steffen
</pre>
304 54 Andreas Steffen
305 62 Andreas Steffen
h2. List of NV Indexes
306 54 Andreas Steffen
307 62 Andreas Steffen
A list of all defined NV indexes can be obtained with
308 57 Andreas Steffen
309 57 Andreas Steffen
 tpm2_nvlist
310 57 Andreas Steffen
311 55 Andreas Steffen
<pre>
312 54 Andreas Steffen
2 NV indexes defined.
313 54 Andreas Steffen
314 54 Andreas Steffen
  0. NV Index: 0x1500015
315 54 Andreas Steffen
  {
316 54 Andreas Steffen
	Hash algorithm(nameAlg):4
317 54 Andreas Steffen
 	The Index attributes(attributes):0x44040004
318 54 Andreas Steffen
 	The size of the data area(dataSize):4
319 54 Andreas Steffen
   }
320 54 Andreas Steffen
  1. NV Index: 0x1800004
321 54 Andreas Steffen
  {
322 54 Andreas Steffen
	Hash algorithm(nameAlg):11
323 54 Andreas Steffen
 	The Index attributes(attributes):0x2002000a
324 1 Andreas Steffen
 	The size of the data area(dataSize):449
325 1 Andreas Steffen
   }
326 62 Andreas Steffen
</pre>
327 62 Andreas Steffen
328 62 Andreas Steffen
h2. Remove NV Index
329 62 Andreas Steffen
330 62 Andreas Steffen
The memory assigned to a given NV index can be released with the command
331 62 Andreas Steffen
<pre>
332 62 Andreas Steffen
tpm2_nvrelease -x 0x01800001 -a 0x40000001
333 54 Andreas Steffen
</pre>
334 54 Andreas Steffen
335 30 Andreas Steffen
h2. Configure TPM Private Key Access via VICI Interface
336 1 Andreas Steffen
337 23 Andreas Steffen
Configuration of TPM private key access as tokens in the secrets section of *swanctl.conf*
338 1 Andreas Steffen
339 7 Andreas Steffen
 secrets {
340 1 Andreas Steffen
    token_ak_rsa {
341 1 Andreas Steffen
       handle = 81010002
342 46 Andreas Steffen
       pin = 123456
343 1 Andreas Steffen
    }
344 1 Andreas Steffen
    token_ak_ecc {
345 7 Andreas Steffen
       handle = 81010004
346 1 Andreas Steffen
    }
347 1 Andreas Steffen
}
348 46 Andreas Steffen
Since the use of the RSA AK private key is password-protected, the PIN *123456* is added.
349 30 Andreas Steffen
350 30 Andreas Steffen
h2. Define IPsec Connection with RSA AK Client Key
351 30 Andreas Steffen
352 30 Andreas Steffen
This connection configuration in *swanctl.conf* uses the RSA AK certificate for client authentication
353 30 Andreas Steffen
<pre>
354 30 Andreas Steffen
connections {
355 30 Andreas Steffen
   rsa {
356 30 Andreas Steffen
      local_addrs  = 10.10.0.105
357 30 Andreas Steffen
      remote_addrs = 10.10.0.104
358 30 Andreas Steffen
359 30 Andreas Steffen
      local {
360 30 Andreas Steffen
         auth = pubkey 
361 30 Andreas Steffen
         certs = raspi5_ak_rsa_Cert.der
362 30 Andreas Steffen
      }
363 30 Andreas Steffen
      remote {
364 30 Andreas Steffen
         auth = pubkey 
365 30 Andreas Steffen
         id = raspi4.example.com
366 30 Andreas Steffen
      }
367 30 Andreas Steffen
      children {
368 30 Andreas Steffen
         rsa {
369 30 Andreas Steffen
            mode = transport
370 30 Andreas Steffen
            esp_proposals = aes128-sha256-curve25519
371 30 Andreas Steffen
         }
372 30 Andreas Steffen
      }
373 30 Andreas Steffen
      version = 2
374 30 Andreas Steffen
      proposals = aes128-sha256-curve25519
375 30 Andreas Steffen
   }
376 30 Andreas Steffen
}
377 30 Andreas Steffen
</pre>
378 30 Andreas Steffen
379 30 Andreas Steffen
h2. Define IPsec Connection with ECC AK Client Key
380 30 Andreas Steffen
381 58 Andreas Steffen
This connection configuration in *swanctl.conf* references the ECC AK certificate used for client authentication via its handle, i.e. the NV index
382 30 Andreas Steffen
<pre>
383 30 Andreas Steffen
connections {
384 30 Andreas Steffen
   ecc {
385 30 Andreas Steffen
      local_addrs  = 10.10.0.105
386 30 Andreas Steffen
      remote_addrs = 10.10.0.104
387 30 Andreas Steffen
388 30 Andreas Steffen
      local {
389 1 Andreas Steffen
         auth = pubkey
390 58 Andreas Steffen
         cert-tpm {
391 58 Andreas Steffen
            handle = 0x01800004
392 58 Andreas Steffen
         }
393 30 Andreas Steffen
      }
394 30 Andreas Steffen
      remote {
395 30 Andreas Steffen
         auth = pubkey
396 30 Andreas Steffen
         id = raspi4.example.com
397 30 Andreas Steffen
      }
398 30 Andreas Steffen
      children {
399 30 Andreas Steffen
         ecc {
400 30 Andreas Steffen
            mode = transport
401 30 Andreas Steffen
            esp_proposals = aes128-sha256-curve25519
402 30 Andreas Steffen
         }
403 30 Andreas Steffen
      }
404 30 Andreas Steffen
      version = 2
405 30 Andreas Steffen
      proposals = aes128-sha256-curve25519
406 30 Andreas Steffen
   }
407 30 Andreas Steffen
}
408 30 Andreas Steffen
</pre>
409 29 Andreas Steffen
410 29 Andreas Steffen
h2. Starting the strongSwan Daemon
411 29 Andreas Steffen
412 29 Andreas Steffen
<pre>
413 29 Andreas Steffen
systemctl start strongswan-swanctl
414 29 Andreas Steffen
</pre>
415 29 Andreas Steffen
416 29 Andreas Steffen
<pre>
417 44 Andreas Steffen
Feb 19 10:52:01 raspi5 systemd[1]: Starting strongSwan IPsec IKEv1/IKEv2 daemon using swanctl...
418 44 Andreas Steffen
Feb 19 10:52:01 raspi5 charon-systemd[21165]: loaded plugins: charon-systemd charon-systemd random nonce x509 constraints openssl pem pkcs1 pkcs8 pkcs12 pubkey mgf1 ntru curve25519 eap-identity eap-ttls eap-tnc tnc-tnccs tnc-imc tnccs-20 socket-default kernel-netlink vici tpm
419 44 Andreas Steffen
Feb 19 10:52:01 raspi5 charon-systemd[21165]: spawning 16 worker threads
420 44 Andreas Steffen
Feb 19 10:52:01 raspi5 charon-systemd[21165]: loaded certificate 'C=US, O=TNC Demo, OU=AIK RSA, CN=raspi5.example.com'
421 44 Andreas Steffen
Feb 19 10:52:01 raspi5 charon-systemd[21165]: loaded certificate 'C=US, O=TNC Demo, CN=TNC Demo CA'
422 1 Andreas Steffen
</pre>
423 1 Andreas Steffen
424 59 Andreas Steffen
The RSA AK private key is attached to the *charon-systemd* daemon via the TPM 2.0 resource manager
425 1 Andreas Steffen
<pre>
426 44 Andreas Steffen
Feb 19 10:52:01 raspi5 resourcemgr[531]: Accept socket:  0xc
427 44 Andreas Steffen
Feb 19 10:52:01 raspi5 resourcemgr[531]: Resource Manager Other CMD Server accepted client
428 44 Andreas Steffen
Feb 19 10:52:01 raspi5 resourcemgr[531]: Accept socket:  0xd
429 44 Andreas Steffen
Feb 19 10:52:01 raspi5 resourcemgr[531]: Resource Manager TPM CMD Server accepted client
430 53 Andreas Steffen
Feb 19 10:52:01 raspi5 charon-systemd[21165]: TPM 2.0 - manufacturer: IFX (SLB9670) rev: 01.16 2015
431 44 Andreas Steffen
Feb 19 10:52:01 raspi5 charon-systemd[21165]: TPM 2.0 - algorithms: RSA SHA1 HMAC AES KEYEDHASH XOR SHA256 RSASSA RSAES RSAPSS OAEP ECDSA ECDH SM2 KDF1_SP800_56A KDF1_SP800_108 ECC SYMCIPHER CFB
432 44 Andreas Steffen
Feb 19 10:52:01 raspi5 charon-systemd[21165]: TPM 2.0 - ECC curves: NIST_P256 BN_P256
433 44 Andreas Steffen
Feb 19 10:52:01 raspi5 charon-systemd[21165]: TPM 2.0 via TSS2 available
434 44 Andreas Steffen
Feb 19 10:52:01 raspi5 charon-systemd[21165]: AIK signature algorithm is RSASSA with SHA256 hash
435 44 Andreas Steffen
Feb 19 10:52:01 raspi5 charon-systemd[21165]: loaded RSA private key from token
436 1 Andreas Steffen
F</pre>
437 1 Andreas Steffen
438 59 Andreas Steffen
The ECC AK private key is attached to the *charon-systemd* daemon via the TPM 2.0 resource manager
439 29 Andreas Steffen
<pre>
440 44 Andreas Steffen
Feb 19 10:52:01 raspi5 resourcemgr[531]: Accept socket:  0x6
441 44 Andreas Steffen
Feb 19 10:52:01 raspi5 resourcemgr[531]: Resource Manager Other CMD Server accepted client
442 44 Andreas Steffen
Feb 19 10:52:01 raspi5 resourcemgr[531]: Accept socket:  0x7
443 44 Andreas Steffen
Feb 19 10:52:01 raspi5 resourcemgr[531]: Resource Manager TPM CMD Server accepted client
444 53 Andreas Steffen
Feb 19 10:52:01 raspi5 charon-systemd[21165]: TPM 2.0 - manufacturer: IFX (SLB9670) rev: 01.16 2015
445 44 Andreas Steffen
Feb 19 10:52:01 raspi5 charon-systemd[21165]: TPM 2.0 - algorithms: RSA SHA1 HMAC AES KEYEDHASH XOR SHA256 RSASSA RSAES RSAPSS OAEP ECDSA ECDH SM2 KDF1_SP800_56A KDF1_SP800_108 ECC SYMCIPHER CFB
446 44 Andreas Steffen
Feb 19 10:52:02 raspi5 charon-systemd[21165]: TPM 2.0 - ECC curves: NIST_P256 BN_P256
447 1 Andreas Steffen
Feb 19 10:52:02 raspi5 charon-systemd[21165]: TPM 2.0 via TSS2 available
448 1 Andreas Steffen
Feb 19 10:52:02 raspi5 charon-systemd[21165]: AIK signature algorithm is ECDSA with SHA256 hash
449 1 Andreas Steffen
Feb 19 10:52:02 raspi5 charon-systemd[21165]: loaded ECDSA private key from token
450 59 Andreas Steffen
</pre>
451 1 Andreas Steffen
452 59 Andreas Steffen
The ECC AIK certificate is loaded by the *charon-systemd* daemon via the TPM 2.0 resource manager
453 1 Andreas Steffen
<pre>
454 59 Andreas Steffen
Feb 19 10:52:02 raspi5 resourcemgr[531]: Accept socket:  0x8
455 59 Andreas Steffen
Feb 19 10:52:02 raspi5 resourcemgr[531]: Resource Manager Other CMD Server accepted client
456 59 Andreas Steffen
Feb 19 10:52:02 raspi5 resourcemgr[531]: Accept socket:  0x9
457 59 Andreas Steffen
Feb 19 10:52:02 raspi5 resourcemgr[531]: Resource Manager TPM CMD Server accepted client
458 59 Andreas Steffen
Feb 19 10:52:02 raspi5 charon-systemd[21165]: TPM 2.0 - manufacturer: IFX (SLB9670) rev: 01.16 2015
459 59 Andreas Steffen
Feb 19 10:52:02 raspi5 charon-systemd[21165]: TPM 2.0 - algorithms: RSA SHA1 HMAC AES KEYEDHASH XOR SHA256 RSASSA RSAES RSAPSS OAEP ECDSA ECDH SM2 KDF1_SP800_56A KDF1_SP800_108 ECC SYMCIPHER CFB
460 59 Andreas Steffen
Feb 19 10:52:02 raspi5 charon-systemd[21165]: TPM 2.0 - ECC curves: NIST_P256 BN_P256
461 59 Andreas Steffen
Feb 19 10:52:02 raspi5 charon-systemd[21165]: TPM 2.0 via TSS2 available
462 59 Andreas Steffen
Feb 19 10:52:02 raspi5 charon-systemd[21165]: loaded certificate from TPM NV index 0x01800004
463 60 Andreas Steffen
Feb 19 10:52:02 raspi5 resourcemgr[531]: OtherCmdServer died (Other CMD), socket: 0x8.
464 60 Andreas Steffen
Feb 19 10:52:02 raspi5 resourcemgr[531]: TpmCmdServer died (TPM CMD), rval: 0x00000000, socket: 0x9
465 59 Andreas Steffen
</pre>
466 59 Andreas Steffen
467 59 Andreas Steffen
The two connection definitions are received by the *charon-systemd* daemon from the *swanctl* command line tool via the VICI interface
468 59 Andreas Steffen
<pre>
469 1 Andreas Steffen
Feb 19 10:52:02 raspi5 charon-systemd[21165]:   id not specified, defaulting to cert subject 'C=US, O=TNC Demo, OU=AIK RSA, CN=raspi5.example.com'
470 1 Andreas Steffen
Feb 19 10:52:02 raspi5 charon-systemd[21165]: added vici connection: rsa
471 1 Andreas Steffen
Feb 19 10:52:02 raspi5 charon-systemd[21165]:   id not specified, defaulting to cert subject 'C=US, O=TNC Demo, OU=AIK ECC, CN=raspi5.example.com'
472 44 Andreas Steffen
Feb 19 10:52:02 raspi5 charon-systemd[21165]: added vici connection: ecc
473 59 Andreas Steffen
</pre>
474 59 Andreas Steffen
475 59 Andreas Steffen
The *swanctl* command line tool reports its actions
476 59 Andreas Steffen
<pre>
477 44 Andreas Steffen
Feb 19 10:52:02 raspi5 swanctl[21183]: loaded certificate from '/etc/swanctl/x509/raspi5_ak_rsa_Cert.der'
478 44 Andreas Steffen
Feb 19 10:52:02 raspi5 swanctl[21183]: loaded certificate from '/etc/swanctl/x509ca/demoCaCert.pem'
479 44 Andreas Steffen
Feb 19 10:52:02 raspi5 swanctl[21183]: loaded key token_ak_rsa from token [keyid: f49e857dde4e67f5fb870398673f207cf33f2b66]
480 44 Andreas Steffen
Feb 19 10:52:02 raspi5 swanctl[21183]: loaded key token_ak_ecc from token [keyid: c70e63f87f6ff65500e5057f5a3e6b6ce7d2d513]
481 44 Andreas Steffen
Feb 19 10:52:02 raspi5 swanctl[21183]: loaded connection 'rsa'
482 44 Andreas Steffen
Feb 19 10:52:02 raspi5 swanctl[21183]: loaded connection 'ecc'
483 44 Andreas Steffen
Feb 19 10:52:02 raspi5 swanctl[21183]: successfully loaded 2 connections, 0 unloaded
484 31 Andreas Steffen
</pre>
485 31 Andreas Steffen
486 31 Andreas Steffen
<pre>
487 44 Andreas Steffen
Feb 19 10:52:02 raspi5 systemd[1]: Started strongSwan IPsec IKEv1/IKEv2 daemon using swanctl.
488 31 Andreas Steffen
</pre>
489 31 Andreas Steffen
490 31 Andreas Steffen
The following *swanctl* command shows the two loaded connections
491 31 Andreas Steffen
<pre>
492 31 Andreas Steffen
swanctl --list-conns
493 31 Andreas Steffen
</pre>
494 31 Andreas Steffen
495 31 Andreas Steffen
<pre>
496 31 Andreas Steffen
rsa: IKEv2, reauthentication every 10800s, no rekeying
497 31 Andreas Steffen
  local:  10.10.0.105
498 31 Andreas Steffen
  remote: 10.10.0.104
499 31 Andreas Steffen
  local public key authentication:
500 31 Andreas Steffen
    id: C=US, O=TNC Demo, OU=AIK RSA, CN=raspi5.example.com
501 31 Andreas Steffen
    certs: C=US, O=TNC Demo, OU=AIK RSA, CN=raspi5.example.com
502 31 Andreas Steffen
  remote public key authentication:
503 31 Andreas Steffen
    id: raspi4.example.com
504 31 Andreas Steffen
  rsa: TRANSPORT, rekeying every 3600s or 300000000 bytes or 500000 packets
505 31 Andreas Steffen
    local:  dynamic
506 31 Andreas Steffen
    remote: dynamic
507 31 Andreas Steffen
</pre>
508 31 Andreas Steffen
509 31 Andreas Steffen
<pre>
510 31 Andreas Steffen
ecc: IKEv2, reauthentication every 10800s, no rekeying
511 31 Andreas Steffen
  local:  10.10.0.105
512 31 Andreas Steffen
  remote: 10.10.0.104
513 31 Andreas Steffen
  local public key authentication:
514 31 Andreas Steffen
    id: C=US, O=TNC Demo, OU=AIK ECC, CN=raspi5.example.com
515 31 Andreas Steffen
    certs: C=US, O=TNC Demo, OU=AIK ECC, CN=raspi5.example.com
516 31 Andreas Steffen
  remote public key authentication:
517 31 Andreas Steffen
    id: raspi4.example.com
518 31 Andreas Steffen
  ecc: TRANSPORT, rekeying every 3600s or 300000000 bytes or 500000 packets
519 31 Andreas Steffen
    local:  dynamic
520 32 Andreas Steffen
    remote: dynamic
521 31 Andreas Steffen
</pre>
522 31 Andreas Steffen
523 31 Andreas Steffen
The loaded certificates can also be displayed
524 31 Andreas Steffen
<pre>
525 31 Andreas Steffen
swanctl --list-certs
526 31 Andreas Steffen
</pre>
527 31 Andreas Steffen
528 31 Andreas Steffen
You can clearly see that the connection between the AK certificates and their matching AK private key has been established (..., has private key)
529 31 Andreas Steffen
<pre>
530 31 Andreas Steffen
List of X.509 End Entity Certificates
531 31 Andreas Steffen
532 31 Andreas Steffen
  subject:  "C=US, O=TNC Demo, OU=AIK RSA, CN=raspi5.example.com"
533 31 Andreas Steffen
  issuer:   "C=US, O=TNC Demo, CN=TNC Demo CA"
534 31 Andreas Steffen
  validity:  not before Feb 19 09:33:43 2017, ok
535 31 Andreas Steffen
             not after  Aug 29 10:33:43 2026, ok (expires in 3477 days)
536 31 Andreas Steffen
  serial:    11:57:33:3e:2a:8e:8a:32
537 31 Andreas Steffen
  altNames:  raspi5.example.com
538 31 Andreas Steffen
  authkeyId: 21:02:7e:2d:de:8b:77:48:75:de:56:2f:b5:d4:62:ec:c3:09:15:f2
539 31 Andreas Steffen
  subjkeyId: f4:9e:85:7d:de:4e:67:f5:fb:87:03:98:67:3f:20:7c:f3:3f:2b:66
540 31 Andreas Steffen
  pubkey:    RSA 2048 bits, has private key
541 31 Andreas Steffen
  keyid:     71:21:f5:d4:7e:59:4a:88:16:ca:57:85:98:3d:36:a7:b1:d5:75:fa
542 31 Andreas Steffen
  subjkey:   f4:9e:85:7d:de:4e:67:f5:fb:87:03:98:67:3f:20:7c:f3:3f:2b:66
543 31 Andreas Steffen
544 31 Andreas Steffen
  subject:  "C=US, O=TNC Demo, OU=AIK ECC, CN=raspi5.example.com"
545 31 Andreas Steffen
  issuer:   "C=US, O=TNC Demo, CN=TNC Demo CA"
546 31 Andreas Steffen
  validity:  not before Feb 17 23:17:19 2017, ok
547 31 Andreas Steffen
             not after  Aug 30 00:17:19 2026, ok (expires in 3478 days)
548 31 Andreas Steffen
  serial:    52:9d:3e:42:6f:71:63:3d
549 31 Andreas Steffen
  altNames:  raspi5.example.com
550 31 Andreas Steffen
  authkeyId: 21:02:7e:2d:de:8b:77:48:75:de:56:2f:b5:d4:62:ec:c3:09:15:f2
551 31 Andreas Steffen
  subjkeyId: c7:0e:63:f8:7f:6f:f6:55:00:e5:05:7f:5a:3e:6b:6c:e7:d2:d5:13
552 31 Andreas Steffen
  pubkey:    ECDSA 256 bits, has private key
553 31 Andreas Steffen
  keyid:     71:49:7c:42:41:e7:c6:81:bc:31:73:f0:0f:7e:4a:e1:2d:53:00:38
554 31 Andreas Steffen
  subjkey:   c7:0e:63:f8:7f:6f:f6:55:00:e5:05:7f:5a:3e:6b:6c:e7:d2:d5:13
555 31 Andreas Steffen
</pre>
556 31 Andreas Steffen
557 31 Andreas Steffen
<pre>
558 31 Andreas Steffen
List of X.509 CA Certificates
559 31 Andreas Steffen
560 31 Andreas Steffen
  subject:  "C=US, O=TNC Demo, CN=TNC Demo CA"
561 1 Andreas Steffen
  issuer:   "C=US, O=TNC Demo, CN=TNC Demo CA"
562 32 Andreas Steffen
  validity:  not before Aug 31 10:29:27 2016, ok
563 32 Andreas Steffen
             not after  Aug 31 10:29:27 2026, ok (expires in 3479 days)
564 43 Andreas Steffen
  serial:    02:c8:85:e1:ef:fa:8f:20
565 32 Andreas Steffen
  flags:     CA CRLSign self-signed 
566 38 Andreas Steffen
  subjkeyId: 21:02:7e:2d:de:8b:77:48:75:de:56:2f:b5:d4:62:ec:c3:09:15:f2
567 32 Andreas Steffen
  pubkey:    ECDSA 256 bits
568 32 Andreas Steffen
  keyid:     a1:b5:e0:29:d0:4c:a7:62:bd:ca:a3:b4:af:18:42:2c:4a:01:55:9a
569 32 Andreas Steffen
  subjkey:   21:02:7e:2d:de:8b:77:48:75:de:56:2f:b5:d4:62:ec:c3:09:15:f2
570 32 Andreas Steffen
</pre>
571 32 Andreas Steffen
572 32 Andreas Steffen
h2. IKEv2 Authentication with RSA AIK Certificate
573 32 Andreas Steffen
574 32 Andreas Steffen
With the following *swanctl* command the "rsa" connection is established
575 32 Andreas Steffen
<pre>
576 32 Andreas Steffen
swanctl --initiate --child rsa
577 32 Andreas Steffen
</pre>
578 32 Andreas Steffen
579 32 Andreas Steffen
<pre>
580 45 Andreas Steffen
Feb 19 10:52:21 raspi5 charon-systemd[21165]: vici initiate 'rsa'
581 32 Andreas Steffen
Feb 19 10:52:21 raspi5 charon-systemd[21165]: initiating IKE_SA rsa[1] to 10.10.0.104
582 40 Andreas Steffen
Feb 19 10:52:21 raspi5 charon-systemd[21165]: generating IKE_SA_INIT request 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) N(FRAG_SUP) N(HASH_ALG) N(REDIR_SUP) V ]
583 40 Andreas Steffen
Feb 19 10:52:21 raspi5 charon-systemd[21165]: sending packet: from 10.10.0.105[500] to 10.10.0.104[500] (1257 bytes)
584 32 Andreas Steffen
Feb 19 10:52:21 raspi5 charon-systemd[21165]: received packet: from 10.10.0.104[500] to 10.10.0.105[500] (1259 bytes)
585 32 Andreas Steffen
Feb 19 10:52:21 raspi5 charon-systemd[21165]: parsed IKE_SA_INIT response 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) CERTREQ N(HASH_ALG) V ]
586 32 Andreas Steffen
Feb 19 10:52:21 raspi5 charon-systemd[21165]: received strongSwan vendor ID
587 32 Andreas Steffen
Feb 19 10:52:21 raspi5 charon-systemd[21165]: received cert request for "C=US, O=TNC Demo, CN=TNC Demo CA"
588 32 Andreas Steffen
Feb 19 10:52:21 raspi5 charon-systemd[21165]: sending cert request for "C=US, O=TNC Demo, CN=TNC Demo CA"
589 32 Andreas Steffen
</pre>
590 32 Andreas Steffen
591 32 Andreas Steffen
The RSA AK private key stored in the TPM 2.0 is used to generate an *RSA_EMSA_PKCS1_SHA2_256* signature which is sent in the AUTH payload of the IKE_AUTH request. The matching client certificate is sent int the CERT payload.
592 32 Andreas Steffen
<pre>
593 32 Andreas Steffen
Feb 19 10:52:24 raspi5 charon-systemd[21165]: authentication of 'C=US, O=TNC Demo, OU=AIK RSA, CN=raspi5.example.com' (myself) with RSA_EMSA_PKCS1_SHA2_256 successful
594 32 Andreas Steffen
Feb 19 10:52:24 raspi5 charon-systemd[21165]: sending end entity cert "C=US, O=TNC Demo, OU=AIK RSA, CN=raspi5.example.com"
595 32 Andreas Steffen
</pre>
596 32 Andreas Steffen
<pre>
597 32 Andreas Steffen
Feb 19 10:52:24 raspi5 charon-systemd[21165]: establishing CHILD_SA rsa
598 32 Andreas Steffen
Feb 19 10:52:24 raspi5 charon-systemd[21165]: generating IKE_AUTH request 1 [ IDi CERT CERTREQ IDr AUTH N(USE_TRANSP) SA TSi TSr N(MOBIKE_SUP) N(ADD_6_ADDR) N(EAP_ONLY) N(MSG_ID_SYN_SUP) ]
599 32 Andreas Steffen
Feb 19 10:52:24 raspi5 charon-systemd[21165]: sending packet: from 10.10.0.105[4500] to 10.10.0.104[4500] (1296 bytes)
600 32 Andreas Steffen
Feb 19 10:52:24 raspi5 charon-systemd[21165]: received packet: from 10.10.0.104[4500] to 10.10.0.105[4500] (752 bytes)
601 32 Andreas Steffen
Feb 19 10:52:24 raspi5 charon-systemd[21165]: parsed IKE_AUTH response 1 [ IDr CERT AUTH N(USE_TRANSP) SA TSi TSr N(AUTH_LFT) N(MOBIKE_SUP) N(NO_ADD_ADDR) ]
602 32 Andreas Steffen
Feb 19 10:52:24 raspi5 charon-systemd[21165]: received end entity cert "C=US, O=TNC Demo, CN=raspi4.example.com"
603 32 Andreas Steffen
Feb 19 10:52:24 raspi5 charon-systemd[21165]:   using certificate "C=US, O=TNC Demo, CN=raspi4.example.com"
604 32 Andreas Steffen
Feb 19 10:52:24 raspi5 charon-systemd[21165]:   using trusted ca certificate "C=US, O=TNC Demo, CN=TNC Demo CA"
605 32 Andreas Steffen
Feb 19 10:52:24 raspi5 charon-systemd[21165]:   reached self-signed root ca with a path length of 0
606 32 Andreas Steffen
Feb 19 10:52:24 raspi5 charon-systemd[21165]: authentication of 'raspi4.example.com' with ECDSA_WITH_SHA256_DER successful
607 38 Andreas Steffen
Feb 19 10:52:24 raspi5 charon-systemd[21165]: IKE_SA rsa[1] established between 10.10.0.105[C=US, O=TNC Demo, OU=AIK RSA, CN=raspi5.example.com]...10.10.0.104[raspi4.example.com]
608 32 Andreas Steffen
Feb 19 10:52:24 raspi5 charon-systemd[21165]: scheduling reauthentication in 10507s
609 32 Andreas Steffen
Feb 19 10:52:24 raspi5 charon-systemd[21165]: maximum IKE_SA lifetime 11587s
610 32 Andreas Steffen
Feb 19 10:52:24 raspi5 charon-systemd[21165]: CHILD_SA rsa{1} established with SPIs c23deb9d_i ce48d08e_o and TS 10.10.0.105/32 === 10.10.0.104/32
611 32 Andreas Steffen
Feb 19 10:52:24 raspi5 charon-systemd[21165]: received AUTH_LIFETIME of 10103s, scheduling reauthentication in 9023s
612 32 Andreas Steffen
Feb 19 10:52:24 raspi5 charon-systemd[21165]: peer supports MOBIKE
613 32 Andreas Steffen
</pre>
614 32 Andreas Steffen
615 32 Andreas Steffen
The following *swanctl* command shows the established IPsec connection
616 32 Andreas Steffen
<pre>
617 32 Andreas Steffen
 swanctl --list-sas
618 32 Andreas Steffen
</pre>
619 32 Andreas Steffen
<pre>
620 32 Andreas Steffen
rsa: #1, ESTABLISHED, IKEv2, 7ba3b4d06c051ecb_i* 14e1769a8aeb7f28_r
621 32 Andreas Steffen
  local  'C=US, O=TNC Demo, OU=AIK RSA, CN=raspi5.example.com' @ 10.10.0.105[4500]
622 32 Andreas Steffen
  remote 'raspi4.example.com' @ 10.10.0.104[4500]
623 32 Andreas Steffen
  AES_CBC-128/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/CURVE_25519
624 32 Andreas Steffen
  established 252s ago, reauth in 8771s
625 38 Andreas Steffen
  rsa: #1, reqid 1, INSTALLED, TRANSPORT, ESP:AES_CBC-128/HMAC_SHA2_256_128
626 33 Andreas Steffen
    installed 252s ago, rekeying in 3258s, expires in 3708s
627 33 Andreas Steffen
    in  c23deb9d,    640 bytes,    10 packets,     3s ago
628 33 Andreas Steffen
    out ce48d08e,    640 bytes,    10 packets,     3s ago
629 33 Andreas Steffen
    local  10.10.0.105/32
630 33 Andreas Steffen
    remote 10.10.0.104/32
631 33 Andreas Steffen
</pre>
632 33 Andreas Steffen
633 33 Andreas Steffen
With this *swanctl* command the "rsa" connection is terminated
634 33 Andreas Steffen
<pre>
635 33 Andreas Steffen
swanctl --terminate --ike rsa
636 33 Andreas Steffen
</pre>
637 33 Andreas Steffen
638 33 Andreas Steffen
<pre>
639 33 Andreas Steffen
Feb 19 10:59:16 raspi5 charon-systemd[21165]: vici terminate IKE_SA 'rsa'
640 33 Andreas Steffen
Feb 19 10:59:16 raspi5 charon-systemd[21165]: deleting IKE_SA rsa[1] between 10.10.0.105[C=US, O=TNC Demo, OU=AIK RSA, CN=raspi5.example.com]...10.10.0.104[raspi4.example.com]
641 43 Andreas Steffen
Feb 19 10:59:16 raspi5 charon-systemd[21165]: sending DELETE for IKE_SA rsa[1]
642 32 Andreas Steffen
Feb 19 10:59:16 raspi5 charon-systemd[21165]: generating INFORMATIONAL request 2 [ D ]
643 38 Andreas Steffen
Feb 19 10:59:16 raspi5 charon-systemd[21165]: sending packet: from 10.10.0.105[4500] to 10.10.0.104[4500] (80 bytes)
644 32 Andreas Steffen
Feb 19 10:59:16 raspi5 charon-systemd[21165]: received packet: from 10.10.0.104[4500] to 10.10.0.105[4500] (80 bytes)
645 32 Andreas Steffen
Feb 19 10:59:16 raspi5 charon-systemd[21165]: parsed INFORMATIONAL response 2 [ ]
646 33 Andreas Steffen
Feb 19 10:59:16 raspi5 charon-systemd[21165]: IKE_SA deleted
647 33 Andreas Steffen
</pre>
648 33 Andreas Steffen
649 33 Andreas Steffen
h2. IKEv2 Authentication with ECC AIK Certificate
650 33 Andreas Steffen
651 33 Andreas Steffen
Next we initiate the "ecc" connection
652 33 Andreas Steffen
<pre>
653 33 Andreas Steffen
swanctl --initiate --child ecc
654 33 Andreas Steffen
</pre>
655 33 Andreas Steffen
656 33 Andreas Steffen
<pre>
657 45 Andreas Steffen
Feb 19 11:00:32 raspi5 charon-systemd[21165]: vici initiate 'ecc'
658 33 Andreas Steffen
Feb 19 11:00:32 raspi5 charon-systemd[21165]: initiating IKE_SA ecc[2] to 10.10.0.104
659 40 Andreas Steffen
Feb 19 11:00:32 raspi5 charon-systemd[21165]: generating IKE_SA_INIT request 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) N(FRAG_SUP) N(HASH_ALG) N(REDIR_SUP) V ]
660 40 Andreas Steffen
Feb 19 11:00:32 raspi5 charon-systemd[21165]: sending packet: from 10.10.0.105[500] to 10.10.0.104[500] (1257 bytes)
661 33 Andreas Steffen
Feb 19 11:00:32 raspi5 charon-systemd[21165]: received packet: from 10.10.0.104[500] to 10.10.0.105[500] (1259 bytes)
662 33 Andreas Steffen
Feb 19 11:00:32 raspi5 charon-systemd[21165]: parsed IKE_SA_INIT response 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) CERTREQ N(HASH_ALG) V ]
663 33 Andreas Steffen
Feb 19 11:00:32 raspi5 charon-systemd[21165]: received strongSwan vendor ID
664 33 Andreas Steffen
Feb 19 11:00:32 raspi5 charon-systemd[21165]: received cert request for "C=US, O=TNC Demo, CN=TNC Demo CA"
665 33 Andreas Steffen
Feb 19 11:00:32 raspi5 charon-systemd[21165]: sending cert request for "C=US, O=TNC Demo, CN=TNC Demo CA"
666 33 Andreas Steffen
</pre>
667 33 Andreas Steffen
668 33 Andreas Steffen
The ECC AK private key stored in the TPM 2.0 is used to generate an *ECDSA_WITH_SHA256_DER* signature which is sent in the AUTH payload of the IKE_AUTH request. The matching client certificate is sent int the CERT payload.
669 33 Andreas Steffen
<pre>
670 33 Andreas Steffen
Feb 19 11:00:34 raspi5 charon-systemd[21165]: authentication of 'C=US, O=TNC Demo, OU=AIK ECC, CN=raspi5.example.com' (myself) with ECDSA_WITH_SHA256_DER successful
671 33 Andreas Steffen
Feb 19 11:00:34 raspi5 charon-systemd[21165]: sending end entity cert "C=US, O=TNC Demo, OU=AIK ECC, CN=raspi5.example.com"
672 33 Andreas Steffen
</pre>
673 33 Andreas Steffen
<pre>
674 33 Andreas Steffen
Feb 19 11:00:34 raspi5 charon-systemd[21165]: establishing CHILD_SA ecc
675 33 Andreas Steffen
Feb 19 11:00:34 raspi5 charon-systemd[21165]: generating IKE_AUTH request 1 [ IDi CERT CERTREQ IDr AUTH N(USE_TRANSP) SA TSi TSr N(MOBIKE_SUP) N(ADD_6_ADDR) N(EAP_ONLY) N(MSG_ID_SYN_SUP) ]
676 33 Andreas Steffen
Feb 19 11:00:34 raspi5 charon-systemd[21165]: sending packet: from 10.10.0.105[4500] to 10.10.0.104[4500] (912 bytes)
677 33 Andreas Steffen
Feb 19 11:00:34 raspi5 charon-systemd[21165]: received packet: from 10.10.0.104[4500] to 10.10.0.105[4500] (752 bytes)
678 33 Andreas Steffen
Feb 19 11:00:34 raspi5 charon-systemd[21165]: parsed IKE_AUTH response 1 [ IDr CERT AUTH N(USE_TRANSP) SA TSi TSr N(AUTH_LFT) N(MOBIKE_SUP) N(NO_ADD_ADDR) ]
679 33 Andreas Steffen
Feb 19 11:00:34 raspi5 charon-systemd[21165]: received end entity cert "C=US, O=TNC Demo, CN=raspi4.example.com"
680 33 Andreas Steffen
Feb 19 11:00:34 raspi5 charon-systemd[21165]:   using certificate "C=US, O=TNC Demo, CN=raspi4.example.com"
681 33 Andreas Steffen
Feb 19 11:00:34 raspi5 charon-systemd[21165]:   using trusted ca certificate "C=US, O=TNC Demo, CN=TNC Demo CA"
682 33 Andreas Steffen
Feb 19 11:00:34 raspi5 charon-systemd[21165]:   reached self-signed root ca with a path length of 0
683 33 Andreas Steffen
Feb 19 11:00:34 raspi5 charon-systemd[21165]: authentication of 'raspi4.example.com' with ECDSA_WITH_SHA256_DER successful
684 39 Andreas Steffen
Feb 19 11:00:34 raspi5 charon-systemd[21165]: IKE_SA ecc[2] established between 10.10.0.105[C=US, O=TNC Demo, OU=AIK ECC, CN=raspi5.example.com]...10.10.0.104[raspi4.example.com]
685 33 Andreas Steffen
Feb 19 11:00:34 raspi5 charon-systemd[21165]: scheduling reauthentication in 10180s
686 33 Andreas Steffen
Feb 19 11:00:34 raspi5 charon-systemd[21165]: maximum IKE_SA lifetime 11260s
687 33 Andreas Steffen
Feb 19 11:00:34 raspi5 charon-systemd[21165]: CHILD_SA ecc{2} established with SPIs c2c16cd0_i c47ea6f6_o and TS 10.10.0.105/32 === 10.10.0.104/32
688 33 Andreas Steffen
Feb 19 11:00:34 raspi5 charon-systemd[21165]: received AUTH_LIFETIME of 9880s, scheduling reauthentication in 8800s
689 33 Andreas Steffen
Feb 19 11:00:34 raspi5 charon-systemd[21165]: peer supports MOBIKE
690 33 Andreas Steffen
</pre>
691 33 Andreas Steffen
692 33 Andreas Steffen
The establed IKE and CHILD SAs are displayed
693 33 Andreas Steffen
<pre>
694 33 Andreas Steffen
 swanctl --list-sas
695 33 Andreas Steffen
</pre>
696 33 Andreas Steffen
<pre>
697 33 Andreas Steffen
ecc: #2, ESTABLISHED, IKEv2, b7f2652777b0996a_i* 12282b5964ff0658_r
698 1 Andreas Steffen
  local  'C=US, O=TNC Demo, OU=AIK ECC, CN=raspi5.example.com' @ 10.10.0.105[4500]
699 1 Andreas Steffen
  remote 'raspi4.example.com' @ 10.10.0.104[4500]
700 34 Andreas Steffen
  AES_CBC-128/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/CURVE_25519
701 34 Andreas Steffen
  established 126s ago, reauth in 8674s
702 39 Andreas Steffen
  ecc: #2, reqid 2, INSTALLED, TRANSPORT, ESP:AES_CBC-128/HMAC_SHA2_256_128
703 34 Andreas Steffen
    installed 126s ago, rekeying in 3252s, expires in 3834s
704 34 Andreas Steffen
    in  c2c16cd0,    320 bytes,     5 packets,     2s ago
705 34 Andreas Steffen
    out c47ea6f6,    320 bytes,     5 packets,     2s ago
706 34 Andreas Steffen
    local  10.10.0.105/32
707 34 Andreas Steffen
    remote 10.10.0.104/32
708 34 Andreas Steffen
</pre>
709 34 Andreas Steffen
710 34 Andreas Steffen
The IKE and CHILD SAs are terminated
711 34 Andreas Steffen
<pre>
712 34 Andreas Steffen
swanctl --terminate --ike ecc
713 34 Andreas Steffen
</pre>
714 34 Andreas Steffen
715 34 Andreas Steffen
<pre>
716 34 Andreas Steffen
Feb 19 11:04:32 raspi5 charon-systemd[21165]: vici terminate IKE_SA 'ecc'
717 34 Andreas Steffen
Feb 19 11:04:32 raspi5 charon-systemd[21165]: deleting IKE_SA ecc[2] between 10.10.0.105[C=US, O=TNC Demo, OU=AIK ECC, CN=raspi5.example.com]...10.10.0.104[raspi4.example.com]
718 34 Andreas Steffen
Feb 19 11:04:32 raspi5 charon-systemd[21165]: sending DELETE for IKE_SA ecc[2]
719 34 Andreas Steffen
Feb 19 11:04:32 raspi5 charon-systemd[21165]: generating INFORMATIONAL request 2 [ D ]
720 39 Andreas Steffen
Feb 19 11:04:32 raspi5 charon-systemd[21165]: sending packet: from 10.10.0.105[4500] to 10.10.0.104[4500] (80 bytes)
721 34 Andreas Steffen
Feb 19 11:04:32 raspi5 charon-systemd[21165]: received packet: from 10.10.0.104[4500] to 10.10.0.105[4500] (80 bytes)
722 34 Andreas Steffen
Feb 19 11:04:32 raspi5 charon-systemd[21165]: parsed INFORMATIONAL response 2 [ ]
723 34 Andreas Steffen
Feb 19 11:04:32 raspi5 charon-systemd[21165]: IKE_SA deleted
724 1 Andreas Steffen
</pre>
725 39 Andreas Steffen
726 34 Andreas Steffen
h2. Stopping the strongSwan Daemon
727 34 Andreas Steffen
728 34 Andreas Steffen
Stop the *strongswan-swanctl* systemd service
729 34 Andreas Steffen
<pre>
730 1 Andreas Steffen
systemctl stop strongswan-swanctl
731 38 Andreas Steffen
</pre>
732 39 Andreas Steffen
733 34 Andreas Steffen
The strongSwan daemon is stopped
734 34 Andreas Steffen
<pre>
735 34 Andreas Steffen
Feb 19 11:06:02 raspi5 systemd[1]: Stopping strongSwan IPsec IKEv1/IKEv2 daemon using swanctl...
736 34 Andreas Steffen
Feb 19 11:06:02 raspi5 charon-systemd[21165]: SIGTERM received, shutting down
737 34 Andreas Steffen
Feb 19 11:06:02 raspi5 systemd[1]: Stopped strongSwan IPsec IKEv1/IKEv2 daemon using swanctl.
738 29 Andreas Steffen
</pre>
739 1 Andreas Steffen
740 1 Andreas Steffen
The two TPM sockets attaching the RSA and ECC AK private keys via the TPM 2.0 resource managers are released
741 1 Andreas Steffen
<pre>
742 1 Andreas Steffen
Feb 19 11:06:02 raspi5 resourcemgr[531]: TpmCmdServer died (TPM CMD), rval: 0x00000000, socket: 0x7.
743 1 Andreas Steffen
Feb 19 11:06:02 raspi5 resourcemgr[531]: OtherCmdServer died (Other CMD), socket: 0x6.
744 1 Andreas Steffen
Feb 19 11:06:02 raspi5 resourcemgr[531]: TpmCmdServer died (TPM CMD), rval: 0x00000000, socket: 0xd.
745 1 Andreas Steffen
Feb 19 11:06:02 raspi5 resourcemgr[531]: OtherCmdServer died (Other CMD), socket: 0xc.
746 1 Andreas Steffen
</pre>