diff --git a/sys/crypto/modes/ccm.c b/sys/crypto/modes/ccm.c
index 6c7d1e7ba47929243b48221e54371450e35eb013..50ad97008ead0007179aede633737db63078a549 100644
--- a/sys/crypto/modes/ccm.c
+++ b/sys/crypto/modes/ccm.c
@@ -34,8 +34,8 @@ static inline int min(int a, int b)
}
}
-int ccm_compute_cbc_mac(cipher_t* cipher, uint8_t iv[16],
- uint8_t* input, size_t length, uint8_t* mac)
+int ccm_compute_cbc_mac(cipher_t* cipher, const uint8_t iv[16],
+ const uint8_t* input, size_t length, uint8_t* mac)
{
uint8_t offset, block_size, mac_enc[16] = {0};
@@ -64,7 +64,7 @@ int ccm_compute_cbc_mac(cipher_t* cipher, uint8_t iv[16],
int ccm_create_mac_iv(cipher_t* cipher, uint8_t auth_data_len, uint8_t M,
- uint8_t L, uint8_t* nonce, uint8_t nonce_len,
+ uint8_t L, const uint8_t* nonce, uint8_t nonce_len,
size_t plaintext_len, uint8_t X1[16])
{
uint8_t M_, L_;
@@ -99,7 +99,7 @@ int ccm_create_mac_iv(cipher_t* cipher, uint8_t auth_data_len, uint8_t M,
return 0;
}
-int ccm_compute_adata_mac(cipher_t* cipher, uint8_t* auth_data,
+int ccm_compute_adata_mac(cipher_t* cipher, const uint8_t* auth_data,
uint32_t auth_data_len, uint8_t X1[16])
{
if (auth_data_len > 0) {
@@ -144,10 +144,11 @@ static inline int _fits_in_nbytes(size_t value, uint8_t num_bytes)
}
-int cipher_encrypt_ccm(cipher_t* cipher, uint8_t* auth_data, uint32_t auth_data_len,
+int cipher_encrypt_ccm(cipher_t* cipher,
+ const uint8_t* auth_data, uint32_t auth_data_len,
uint8_t mac_length, uint8_t length_encoding,
- uint8_t* nonce, size_t nonce_len,
- uint8_t* input, size_t input_len,
+ const uint8_t* nonce, size_t nonce_len,
+ const uint8_t* input, size_t input_len,
uint8_t* output)
{
int len = -1;
@@ -207,10 +208,12 @@ int cipher_encrypt_ccm(cipher_t* cipher, uint8_t* auth_data, uint32_t auth_data_
}
-int cipher_decrypt_ccm(cipher_t* cipher, uint8_t* auth_data,
- uint32_t auth_data_len, uint8_t mac_length,
- uint8_t length_encoding, uint8_t* nonce, size_t nonce_len,
- uint8_t* input, size_t input_len, uint8_t* plain)
+int cipher_decrypt_ccm(cipher_t* cipher,
+ const uint8_t* auth_data, uint32_t auth_data_len,
+ uint8_t mac_length, uint8_t length_encoding,
+ const uint8_t* nonce, size_t nonce_len,
+ const uint8_t* input, size_t input_len,
+ uint8_t* plain)
{
int len = -1;
uint8_t nonce_counter[16] = {0}, mac_iv[16] = {0}, mac[16] = {0},
diff --git a/sys/crypto/modes/ctr.c b/sys/crypto/modes/ctr.c
index 24034c53a2fbb45ecc75b626a189f3b22d6397c5..ad74c003ed9f4b3ce2ef42ca3c2a79e3f0cc000d 100644
--- a/sys/crypto/modes/ctr.c
+++ b/sys/crypto/modes/ctr.c
@@ -22,7 +22,7 @@
#include "crypto/modes/ctr.h"
int cipher_encrypt_ctr(cipher_t* cipher, uint8_t nonce_counter[16],
- uint8_t nonce_len, uint8_t* input, size_t length,
+ uint8_t nonce_len, const uint8_t* input, size_t length,
uint8_t* output)
{
size_t offset = 0;
@@ -50,7 +50,7 @@ int cipher_encrypt_ctr(cipher_t* cipher, uint8_t nonce_counter[16],
}
int cipher_decrypt_ctr(cipher_t* cipher, uint8_t nonce_counter[16],
- uint8_t nonce_len, uint8_t* input, size_t length,
+ uint8_t nonce_len, const uint8_t* input, size_t length,
uint8_t* output)
{
return cipher_encrypt_ctr(cipher, nonce_counter, nonce_len, input,
diff --git a/sys/include/crypto/modes/ccm.h b/sys/include/crypto/modes/ccm.h
index 03ac25a5f15b3b7b008c44c284e3c4063c9d1480..aacf2f05a83a1e873e380ef74562e01e809b049e 100644
--- a/sys/include/crypto/modes/ccm.h
+++ b/sys/include/crypto/modes/ccm.h
@@ -57,10 +57,12 @@ extern "C" {
* @return Length of encrypted data on a successful encryption
* @return A negative error code if something went wrong
*/
-int cipher_encrypt_ccm(cipher_t* cipher, uint8_t* auth_data,
- uint32_t auth_data_len, uint8_t mac_length,
- uint8_t length_encoding, uint8_t* nonce, size_t nonce_len,
- uint8_t* input, size_t input_len, uint8_t* output);
+int cipher_encrypt_ccm(cipher_t* cipher,
+ const uint8_t* auth_data, uint32_t auth_data_len,
+ uint8_t mac_length, uint8_t length_encoding,
+ const uint8_t* nonce, size_t nonce_len,
+ const uint8_t* input, size_t input_len,
+ uint8_t* output);
/**
@@ -84,10 +86,12 @@ int cipher_encrypt_ccm(cipher_t* cipher, uint8_t* auth_data,
* @return Length of the decrypted data on a successful decryption
* @return A negative error code if something went wrong
*/
-int cipher_decrypt_ccm(cipher_t* cipher, uint8_t* auth_data,
- uint32_t auth_data_len, uint8_t mac_length,
- uint8_t length_encoding, uint8_t* nonce, size_t nonce_len,
- uint8_t* input, size_t input_len, uint8_t* output);
+int cipher_decrypt_ccm(cipher_t* cipher,
+ const uint8_t* auth_data, uint32_t auth_data_len,
+ uint8_t mac_length, uint8_t length_encoding,
+ const uint8_t* nonce, size_t nonce_len,
+ const uint8_t* input, size_t input_len,
+ uint8_t* output);
#ifdef __cplusplus
}
diff --git a/sys/include/crypto/modes/ctr.h b/sys/include/crypto/modes/ctr.h
index 36d2aefd1d0b18c398d6b181113950d7dc16dfa3..45b5223dbc2f97ff20b8babf9956f659bc05cf32 100644
--- a/sys/include/crypto/modes/ctr.h
+++ b/sys/include/crypto/modes/ctr.h
@@ -45,7 +45,7 @@ extern "C" {
* @return A negative error code if something went wrong
*/
int cipher_encrypt_ctr(cipher_t* cipher, uint8_t nonce_counter[16],
- uint8_t nonce_len, uint8_t* input, size_t length,
+ uint8_t nonce_len, const uint8_t* input, size_t length,
uint8_t* output);
@@ -69,7 +69,7 @@ int cipher_encrypt_ctr(cipher_t* cipher, uint8_t nonce_counter[16],
* @return A negative error code if something went wrong
*/
int cipher_decrypt_ctr(cipher_t* cipher, uint8_t nonce_counter[16],
- uint8_t nonce_len, uint8_t* input, size_t length,
+ uint8_t nonce_len, const uint8_t* input, size_t length,
uint8_t* output);
#ifdef __cplusplus
diff --git a/tests/unittests/tests-crypto/tests-crypto-modes-ccm.c b/tests/unittests/tests-crypto/tests-crypto-modes-ccm.c
index c9151d9ef57a8124ac8b5f7aa7066524186807c9..e315e6400084769ce91bd1fde2587a6f2a7fdd45 100644
--- a/tests/unittests/tests-crypto/tests-crypto-modes-ccm.c
+++ b/tests/unittests/tests-crypto/tests-crypto-modes-ccm.c
@@ -20,79 +20,79 @@
static const size_t nonce_and_len_encoding_size = 15;
/* PACKET VECTOR #1 (RFC 3610 - Page 10) */
-static uint8_t TEST_1_KEY[] = {
+static const uint8_t TEST_1_KEY[] = {
0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF
};
-static size_t TEST_1_KEY_LEN = 16;
+static const size_t TEST_1_KEY_LEN = 16;
-static uint8_t TEST_1_NONCE[] = {
+static const uint8_t TEST_1_NONCE[] = {
0x00, 0x00, 0x00, 0x03, 0x02, 0x01, 0x00, 0xA0,
0xA1, 0xA2, 0xA3, 0xA4, 0xA5
};
-static size_t TEST_1_NONCE_LEN = 13;
+static const size_t TEST_1_NONCE_LEN = 13;
-static size_t TEST_1_MAC_LEN = 8;
+static const size_t TEST_1_MAC_LEN = 8;
-static uint8_t TEST_1_INPUT[] = {
+static const uint8_t TEST_1_INPUT[] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* additional auth data */
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, /* input */
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* input */
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E /* input */
};
-static size_t TEST_1_INPUT_LEN = 23;
-static size_t TEST_1_ADATA_LEN = 8;
+static const size_t TEST_1_INPUT_LEN = 23;
+static const size_t TEST_1_ADATA_LEN = 8;
-static uint8_t TEST_1_EXPECTED[] = {
+static const uint8_t TEST_1_EXPECTED[] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x58, 0x8C, 0x97, 0x9A, 0x61, 0xC6, 0x63, 0xD2,
0xF0, 0x66, 0xD0, 0xC2, 0xC0, 0xF9, 0x89, 0x80,
0x6D, 0x5F, 0x6B, 0x61, 0xDA, 0xC3, 0x84, 0x17,
0xE8, 0xD1, 0x2C, 0xFD, 0xF9, 0x26, 0xE0
};
-static size_t TEST_1_EXPECTED_LEN = 39;
+static const size_t TEST_1_EXPECTED_LEN = 39;
/* PACKET VECTOR #2 (RFC 3610 - Page 10) */
-static uint8_t TEST_2_KEY[] = {
+static const uint8_t TEST_2_KEY[] = {
0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF
};
-static size_t TEST_2_KEY_LEN = 16;
+static const size_t TEST_2_KEY_LEN = 16;
-static uint8_t TEST_2_NONCE[] = {
+static const uint8_t TEST_2_NONCE[] = {
0x00, 0x00, 0x00, 0x04, 0x03, 0x02, 0x01, 0xA0,
0xA1, 0xA2, 0xA3, 0xA4, 0xA5
};
-static size_t TEST_2_NONCE_LEN = 13;
+static const size_t TEST_2_NONCE_LEN = 13;
-static size_t TEST_2_MAC_LEN = 8;
+static const size_t TEST_2_MAC_LEN = 8;
-static uint8_t TEST_2_INPUT[] = {
+static const uint8_t TEST_2_INPUT[] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F
};
-static size_t TEST_2_INPUT_LEN = 24;
-static size_t TEST_2_ADATA_LEN = 8;
+static const size_t TEST_2_INPUT_LEN = 24;
+static const size_t TEST_2_ADATA_LEN = 8;
-static uint8_t TEST_2_EXPECTED[] = {
+static const uint8_t TEST_2_EXPECTED[] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x72, 0xC9, 0x1A, 0x36, 0xE1, 0x35, 0xF8, 0xCF,
0x29, 0x1C, 0xA8, 0x94, 0x08, 0x5C, 0x87, 0xE3,
0xCC, 0x15, 0xC4, 0x39, 0xC9, 0xE4, 0x3A, 0x3B,
0xA0, 0x91, 0xD5, 0x6E, 0x10, 0x40, 0x09, 0x16
};
-static size_t TEST_2_EXPECTED_LEN = 40;
+static const size_t TEST_2_EXPECTED_LEN = 40;
/* Share test buffer output */
static uint8_t data[60];
-static void test_encrypt_op(uint8_t* key, uint8_t key_len,
- uint8_t* adata, size_t adata_len,
- uint8_t* nonce, uint8_t nonce_len,
- uint8_t* plain, size_t plain_len,
- uint8_t* output_expected,
+static void test_encrypt_op(const uint8_t* key, uint8_t key_len,
+ const uint8_t* adata, size_t adata_len,
+ const uint8_t* nonce, uint8_t nonce_len,
+ const uint8_t* plain, size_t plain_len,
+ const uint8_t* output_expected,
size_t output_expected_len,
uint8_t mac_length)
{
@@ -117,11 +117,11 @@ static void test_encrypt_op(uint8_t* key, uint8_t key_len,
}
-static void test_decrypt_op(uint8_t* key, uint8_t key_len,
- uint8_t* adata, size_t adata_len,
- uint8_t* nonce, uint8_t nonce_len,
- uint8_t* encrypted, size_t encrypted_len,
- uint8_t* output_expected,
+static void test_decrypt_op(const uint8_t* key, uint8_t key_len,
+ const uint8_t* adata, size_t adata_len,
+ const uint8_t* nonce, uint8_t nonce_len,
+ const uint8_t* encrypted, size_t encrypted_len,
+ const uint8_t* output_expected,
size_t output_expected_len,
uint8_t mac_length)
{
@@ -190,11 +190,12 @@ static void test_crypto_modes_ccm_decrypt(void)
}
-typedef int (*func_ccm_t)(cipher_t*, uint8_t*, uint32_t, uint8_t, uint8_t,
- uint8_t*, size_t, uint8_t*, size_t, uint8_t*);
+typedef int (*func_ccm_t)(cipher_t*, const uint8_t*, uint32_t,
+ uint8_t, uint8_t, const uint8_t*, size_t,
+ const uint8_t*, size_t, uint8_t*);
static int _test_ccm_len(func_ccm_t func, uint8_t len_encoding,
- uint8_t *input, size_t input_len, size_t adata_len)
+ const uint8_t *input, size_t input_len, size_t adata_len)
{
int ret;
cipher_t cipher;
diff --git a/tests/unittests/tests-crypto/tests-crypto.h b/tests/unittests/tests-crypto/tests-crypto.h
index db49773288e4fc6b7dc2b9af863d0b86e62fce21..f8cac4578d61d8c14016724d575173ec8c2b7ddc 100644
--- a/tests/unittests/tests-crypto/tests-crypto.h
+++ b/tests/unittests/tests-crypto/tests-crypto.h
@@ -40,7 +40,7 @@ void tests_crypto(void);
*/
Test *tests_crypto_chacha_tests(void);
-static inline int compare(uint8_t *a, uint8_t *b, uint8_t len)
+static inline int compare(const uint8_t *a, const uint8_t *b, uint8_t len)
{
int result = 1;