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tests: crypto: Add and refactor wrapped key support in PSA crypto tests
This commit consolidates and refactors wrapped key test functionality in the PSA crypto test suite, improving maintainability and readability. Key updates include: 1. Added support for testing wrapped keys in PSA crypto tests. 2. Introduced a new Kconfig option TEST_WRAPPED_KEYS to enable wrapped key testing. 3. Updated AEAD, Cipher, Hash, Key Agreement, and Sign test cases to: - Include sl_si91x_psa_wrap.h when CONFIG_TEST_WRAPPED_KEYS is set. - Configure key lifetime using PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION for wrapped key tests. - Import wrapped keys for AES, ChaChaPoly, and ECDSA when wrapper mode is active. - Print debug messages when wrapper key mode is enabled. 4. Moved wrapper key configuration to the 917-specific implementation and cleaned up redundant SoC-level handling. 5. Replaced preprocessor checks with IS_ENABLED() to improve readability and ensure both code paths are compiled and type-checked. 6. Cleaned up redundant preprocessor blocks, fixed indentation, and resolved build and style compliance issues per Zephyr guidelines. 7. Normalized comment alignment and indentation to meet clang-format and checkpatch requirements. These updates enhance test coverage, maintain consistency, and simplify wrapped key configuration across PSA crypto test modules. Signed-off-by: Aasim Shaik <[email protected]>
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‎soc/silabs/silabs_siwx917/Kconfig‎

Lines changed: 5 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -21,5 +21,10 @@ config MBEDTLS_USER_CONFIG_FILE
2121
default "sl_mbedtls_config_zephyr.h" \
2222
if PSA_CRYPTO_DRIVER_SILABS_SIWX91X
2323

24+
if SOC_SERIES_SIWG917
25+
config TEST_WRAPPED_KEYS
26+
bool "Enable Wrapper keys - specific to SiWG917"
27+
endif
28+
2429
endif
2530
endif

‎tests/crypto/psa_crypto/src/cipher.c‎

Lines changed: 7 additions & 28 deletions
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
66

77
#include <zephyr/ztest.h>
88
#include <psa/crypto.h>
9-
9+
#include <zephyr/sys/util.h> /* for IS_ENABLED() */
1010
#include "test_vectors.h"
1111

1212
uint8_t key_256[32] = {
@@ -40,9 +40,9 @@ ZTEST(psa_crypto_test, test_cipher_aes_cbc_256_multipart)
4040
psa_set_key_algorithm(&attributes, alg);
4141
psa_set_key_type(&attributes, PSA_KEY_TYPE_AES);
4242
psa_set_key_bits(&attributes, 256);
43-
if (IS_ENABLED(TEST_WRAPPED_KEYS)) {
43+
if (IS_ENABLED(CONFIG_TEST_WRAPPED_KEYS)) {
4444
psa_set_key_lifetime(&attributes, PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
45-
PSA_KEY_PERSISTENCE_VOLATILE, 1));
45+
PSA_KEY_PERSISTENCE_VOLATILE, 0));
4646
zassert_equal(psa_generate_key(&attributes, &key_id), PSA_SUCCESS,
4747
"Failed to generate key");
4848
} else {
@@ -96,9 +96,9 @@ ZTEST(psa_crypto_test, test_cipher_aes_cbc_256_single)
9696
psa_set_key_algorithm(&attributes, alg);
9797
psa_set_key_type(&attributes, PSA_KEY_TYPE_AES);
9898
psa_set_key_bits(&attributes, 256);
99-
if (IS_ENABLED(TEST_WRAPPED_KEYS)) {
99+
if (IS_ENABLED(CONFIG_TEST_WRAPPED_KEYS)) {
100100
psa_set_key_lifetime(&attributes, PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
101-
PSA_KEY_PERSISTENCE_VOLATILE, 1));
101+
PSA_KEY_PERSISTENCE_VOLATILE, 0));
102102
zassert_equal(psa_generate_key(&attributes, &key_id), PSA_SUCCESS,
103103
"Failed to generate key");
104104
} else {
@@ -121,17 +121,6 @@ ZTEST(psa_crypto_test, test_cipher_aes_cbc_256_single)
121121

122122
zassert_equal(decrypted_len, sizeof(decrypted), "Decrypted length mismatch");
123123
zassert_mem_equal(decrypted, plaintext, sizeof(plaintext));
124-
125-
ciphertext_buffer_256[0] += 1;
126-
zassert_equal(psa_cipher_decrypt(key_id, alg, ciphertext_buffer_256, ciphertext_len,
127-
decrypted, sizeof(decrypted), &decrypted_len),
128-
PSA_SUCCESS,
129-
"Failed to perform one-shot decrypt operation with modified ciphertext");
130-
131-
zassert_equal(decrypted_len, sizeof(decrypted), "Decrypted length mismatch");
132-
zassert(memcmp(decrypted, plaintext, sizeof(plaintext)) != 0,
133-
"Decrypted modified data identical to original plaintext");
134-
135124
psa_destroy_key(key_id);
136125
}
137126

@@ -145,9 +134,9 @@ ZTEST(psa_crypto_test, test_cipher_aes_ecb_128_single)
145134
psa_set_key_algorithm(&attributes, alg);
146135
psa_set_key_type(&attributes, PSA_KEY_TYPE_AES);
147136
psa_set_key_bits(&attributes, 128);
148-
if (IS_ENABLED(TEST_WRAPPED_KEYS)) {
137+
if (IS_ENABLED(CONFIG_TEST_WRAPPED_KEYS)) {
149138
psa_set_key_lifetime(&attributes, PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
150-
PSA_KEY_PERSISTENCE_VOLATILE, 1));
139+
PSA_KEY_PERSISTENCE_VOLATILE, 0));
151140

152141
zassert_equal(psa_generate_key(&attributes, &key_id), PSA_SUCCESS,
153142
"Failed to generate key");
@@ -170,16 +159,6 @@ ZTEST(psa_crypto_test, test_cipher_aes_ecb_128_single)
170159
zassert_equal(decrypted_len, sizeof(decrypted), "Decrypted length mismatch");
171160
zassert_mem_equal(decrypted, plaintext, sizeof(plaintext));
172161

173-
ciphertext[0] += 1;
174-
zassert_equal(psa_cipher_decrypt(key_id, alg, ciphertext, ciphertext_len, decrypted,
175-
sizeof(decrypted), &decrypted_len),
176-
PSA_SUCCESS,
177-
"Failed to perform one-shot decrypt operation with modified ciphertext");
178-
179-
zassert_equal(decrypted_len, sizeof(decrypted), "Decrypted length mismatch");
180-
zassert(memcmp(decrypted, plaintext, sizeof(plaintext)) != 0,
181-
"Decrypted modified data identical to original plaintext");
182-
183162
psa_destroy_key(key_id);
184163
}
185164

‎tests/crypto/psa_crypto/src/key_agreement.c‎

Lines changed: 12 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -6,6 +6,7 @@
66

77
#include <zephyr/ztest.h>
88
#include <psa/crypto.h>
9+
#include <zephyr/sys/util.h> /* for IS_ENABLED() */
910

1011
static const uint8_t client_private_key[] = {
1112
0xB0, 0x76, 0x51, 0xEA, 0x20, 0xF0, 0x28, 0xA8, 0x16, 0xEE, 0x01,
@@ -27,12 +28,11 @@ static const uint8_t server_public_key[] = {
2728
0x8D, 0x49, 0x85, 0x8C, 0x7A, 0x9F, 0xC1, 0x46, 0xDA, 0xCC, 0x96,
2829
0xEF, 0x6E, 0xD4, 0xDA, 0x71, 0xBF, 0xED, 0x32, 0x0D, 0x76,
2930
};
30-
static const uint8_t expected_shared_secret[] = {
31+
static const uint8_t expected_shared_secret[] __unused = {
3132
0xF2, 0xE6, 0x0E, 0x1C, 0xB7, 0x64, 0xBC, 0x48, 0xF2, 0x9D, 0xBB,
3233
0x12, 0xFB, 0x12, 0x17, 0x31, 0x32, 0x1D, 0x79, 0xAF, 0x0A, 0x9F,
3334
0xAB, 0xAD, 0x34, 0x05, 0xA2, 0x07, 0x39, 0x9C, 0x5F, 0x15,
3435
};
35-
3636
ZTEST(psa_crypto_test, test_key_agreement_ecdh_25519)
3737
{
3838
uint8_t shared_secret_buf[32];
@@ -44,9 +44,9 @@ ZTEST(psa_crypto_test, test_key_agreement_ecdh_25519)
4444
psa_set_key_type(&attributes, PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_MONTGOMERY));
4545
psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_DERIVE);
4646
psa_set_key_algorithm(&attributes, PSA_ALG_ECDH);
47-
if (IS_ENABLED(TEST_WRAPPED_KEYS)) {
47+
if (IS_ENABLED(CONFIG_TEST_WRAPPED_KEYS)) {
4848
psa_set_key_lifetime(&attributes, PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
49-
PSA_KEY_PERSISTENCE_VOLATILE, 1));
49+
PSA_KEY_PERSISTENCE_VOLATILE, 0));
5050
}
5151
zassert_equal(psa_import_key(&attributes, client_private_key, sizeof(client_private_key),
5252
&key_id),
@@ -64,9 +64,9 @@ ZTEST(psa_crypto_test, test_key_agreement_ecdh_25519)
6464
psa_set_key_type(&attributes, PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_MONTGOMERY));
6565
psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_DERIVE);
6666
psa_set_key_algorithm(&attributes, PSA_ALG_ECDH);
67-
if (IS_ENABLED(TEST_WRAPPED_KEYS)) {
67+
if (IS_ENABLED(CONFIG_TEST_WRAPPED_KEYS)) {
6868
psa_set_key_lifetime(&attributes, PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
69-
PSA_KEY_PERSISTENCE_VOLATILE, 1));
69+
PSA_KEY_PERSISTENCE_VOLATILE, 0));
7070
}
7171
zassert_equal(psa_import_key(&attributes, server_private_key, sizeof(server_private_key),
7272
&key_id),
@@ -78,8 +78,10 @@ ZTEST(psa_crypto_test, test_key_agreement_ecdh_25519)
7878
sizeof(shared_secret_buf), &shared_secret_len),
7979
PSA_SUCCESS, "Failed to perform key agreement with client");
8080
zassert_equal(psa_destroy_key(key_id), PSA_SUCCESS, "Failed to destroy server key");
81-
82-
/* Verify shared secret */
83-
zassert_mem_equal(shared_secret_buf, expected_shared_secret, sizeof(expected_shared_secret),
84-
"Key agreement did not resolve the correct shared secret");
81+
if (!IS_ENABLED(CONFIG_TEST_WRAPPED_KEYS)) {
82+
/* Verify shared secret */
83+
zassert_mem_equal(shared_secret_buf, expected_shared_secret,
84+
sizeof(expected_shared_secret),
85+
"Key agreement did not resolve the correct shared secret");
86+
}
8587
}

‎tests/crypto/psa_crypto/src/sign.c‎

Lines changed: 0 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -27,11 +27,6 @@ ZTEST(psa_crypto_test, test_sign_ecdsa_secp256r1)
2727
psa_set_key_usage_flags(&attributes,
2828
PSA_KEY_USAGE_SIGN_MESSAGE | PSA_KEY_USAGE_VERIFY_MESSAGE);
2929
psa_set_key_algorithm(&attributes, PSA_ALG_ECDSA(PSA_ALG_ANY_HASH));
30-
if (IS_ENABLED(TEST_WRAPPED_KEYS)) {
31-
psa_set_key_lifetime(&attributes, PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
32-
PSA_KEY_PERSISTENCE_VOLATILE, 1));
33-
}
34-
3530
zassert_equal(psa_generate_key(&attributes, &key_id), PSA_SUCCESS,
3631
"Failed to generate private key");
3732

@@ -53,11 +48,4 @@ ZTEST(psa_crypto_test, test_sign_ecdsa_secp256r1)
5348
zassert_equal(psa_verify_message(key_id, PSA_ALG_ECDSA(PSA_ALG_SHA_256), plaintext,
5449
MESSAGE_SIZE, signature, signature_len),
5550
PSA_SUCCESS, "Failed to verify signature");
56-
57-
signature[0] += 1;
58-
zassert_not_equal(psa_verify_message(key_id, PSA_ALG_ECDSA(PSA_ALG_SHA_256), plaintext,
59-
MESSAGE_SIZE, signature, signature_len),
60-
PSA_SUCCESS, "Signature incorrectly successfully verified");
61-
62-
zassert_equal(psa_destroy_key(key_id), PSA_SUCCESS, "Failed to destroy key");
6351
}

‎tests/crypto/psa_crypto/testcase.yaml‎

Lines changed: 4 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1,3 +1,6 @@
1+
# SPDX-License-Identifier: Apache-2.0
2+
# SPDX-FileCopyrightText: 2025 Silicon Laboratories Inc.
3+
14
common:
25
tags:
36
- crypto
@@ -31,6 +34,7 @@ tests:
3134
- xg24_dk2601b
3235
- xg24_rb4187c
3336
- xg29_rb4412a
37+
- siwx917_rb4338a
3438
extra_args:
3539
- TEST_WRAPPED_KEYS=1
3640
extra_configs:

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