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samples: drivers: crypto: Align buffers

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This change extends what e1e19732bc
(samples: drivers: crypto: Aligned AES key) has started: For certain
architectures (i.e. Si32), the alignment of the used buffers is
important as the AES HW engine uses DMA and inherits its restrictions.

Signed-off-by: Reto Schneider <reto.schneider@husqvarnagroup.com>
This commit is contained in:
Reto Schneider 2024-09-16 02:09:04 +02:00 committed by Dan Kalowsky
parent 83345401d6
commit 09dc9dcb0d
1 changed files with 19 additions and 16 deletions
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35
samples/drivers/crypto/src/main.c
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@ -37,12 +37,15 @@ LOG_MODULE_REGISTER(main);
#error "You need to enable one crypto device" #error "You need to enable one crypto device"
#endif #endif
const static uint8_t key[16] __aligned(4) = { /* Some crypto drivers require IO buffers to be aligned, i.e. due to underlying DMA requirements. */
#define IO_ALIGNMENT_BYTES 4
const static uint8_t key[16] __aligned(IO_ALIGNMENT_BYTES) = {
0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88, 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88,
0x09, 0xcf, 0x4f, 0x3c 0x09, 0xcf, 0x4f, 0x3c
}; };
static uint8_t plaintext[64] = { static uint8_t plaintext[64] __aligned(IO_ALIGNMENT_BYTES) = {
0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11, 0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11,
0x73, 0x93, 0x17, 0x2a, 0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, 0x73, 0x93, 0x17, 0x2a, 0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c,
0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51, 0x30, 0xc8, 0x1c, 0x46, 0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51, 0x30, 0xc8, 0x1c, 0x46,
@ -119,17 +122,17 @@ void ecb_mode(const struct device *dev)
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F
}; };
uint8_t ecb_plaintext[16] = { uint8_t ecb_plaintext[16] __aligned(IO_ALIGNMENT_BYTES) = {
0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF
}; };
uint8_t ecb_ciphertext[16] = { uint8_t ecb_ciphertext[16] __aligned(IO_ALIGNMENT_BYTES) = {
0x69, 0xC4, 0xE0, 0xD8, 0x6A, 0x7B, 0x04, 0x30, 0x69, 0xC4, 0xE0, 0xD8, 0x6A, 0x7B, 0x04, 0x30,
0xD8, 0xCD, 0xB7, 0x80, 0x70, 0xB4, 0xC5, 0x5A 0xD8, 0xCD, 0xB7, 0x80, 0x70, 0xB4, 0xC5, 0x5A
}; };
uint8_t encrypted[16] = {0}; uint8_t encrypted[16] __aligned(IO_ALIGNMENT_BYTES) = {0};
uint8_t decrypted[16] = {0}; uint8_t decrypted[16] __aligned(IO_ALIGNMENT_BYTES) = {0};
struct cipher_ctx ini = { struct cipher_ctx ini = {
.keylen = sizeof(ecb_key), .keylen = sizeof(ecb_key),
.key.bit_stream = ecb_key, .key.bit_stream = ecb_key,
@ -210,8 +213,8 @@ static const uint8_t cbc_ciphertext[80] = {
void cbc_mode(const struct device *dev) void cbc_mode(const struct device *dev)
{ {
uint8_t encrypted[80] = {0}; uint8_t encrypted[80] __aligned(IO_ALIGNMENT_BYTES) = {0};
uint8_t decrypted[64] = {0}; uint8_t decrypted[64] __aligned(IO_ALIGNMENT_BYTES) = {0};
struct cipher_ctx ini = { struct cipher_ctx ini = {
.keylen = sizeof(key), .keylen = sizeof(key),
.key.bit_stream = key, .key.bit_stream = key,
@ -299,8 +302,8 @@ static const uint8_t ctr_ciphertext[64] = {
void ctr_mode(const struct device *dev) void ctr_mode(const struct device *dev)
{ {
uint8_t encrypted[64] = {0}; uint8_t encrypted[64] __aligned(IO_ALIGNMENT_BYTES) = {0};
uint8_t decrypted[64] = {0}; uint8_t decrypted[64] __aligned(IO_ALIGNMENT_BYTES) = {0};
struct cipher_ctx ini = { struct cipher_ctx ini = {
.keylen = sizeof(key), .keylen = sizeof(key),
.key.bit_stream = key, .key.bit_stream = key,
@ -387,7 +390,7 @@ static uint8_t ccm_nonce[13] = {
static uint8_t ccm_hdr[8] = { static uint8_t ccm_hdr[8] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07
}; };
static uint8_t ccm_data[23] = { static uint8_t ccm_data[23] __aligned(IO_ALIGNMENT_BYTES) = {
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13,
0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e
}; };
@ -399,8 +402,8 @@ static const uint8_t ccm_expected[31] = {
void ccm_mode(const struct device *dev) void ccm_mode(const struct device *dev)
{ {
uint8_t encrypted[50]; uint8_t encrypted[50] __aligned(IO_ALIGNMENT_BYTES);
uint8_t decrypted[25]; uint8_t decrypted[25] __aligned(IO_ALIGNMENT_BYTES);
struct cipher_ctx ini = { struct cipher_ctx ini = {
.keylen = sizeof(ccm_key), .keylen = sizeof(ccm_key),
.key.bit_stream = ccm_key, .key.bit_stream = ccm_key,
@ -499,7 +502,7 @@ static uint8_t gcm_hdr[20] = {
0xe2, 0x01, 0x06, 0xd7, 0xcd, 0x0d, 0xf0, 0x76, 0x1e, 0x8d, 0xcd, 0x3d, 0xe2, 0x01, 0x06, 0xd7, 0xcd, 0x0d, 0xf0, 0x76, 0x1e, 0x8d, 0xcd, 0x3d,
0x88, 0xe5, 0x4c, 0x2a, 0x76, 0xd4, 0x57, 0xed 0x88, 0xe5, 0x4c, 0x2a, 0x76, 0xd4, 0x57, 0xed
}; };
static uint8_t gcm_data[42] = { static uint8_t gcm_data[42] __aligned(IO_ALIGNMENT_BYTES) = {
0x08, 0x00, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x08, 0x00, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24,
0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30,
@ -516,8 +519,8 @@ static const uint8_t gcm_expected[58] = {
void gcm_mode(const struct device *dev) void gcm_mode(const struct device *dev)
{ {
uint8_t encrypted[60] = {0}; uint8_t encrypted[60] __aligned(IO_ALIGNMENT_BYTES) = {0};
uint8_t decrypted[44] = {0}; uint8_t decrypted[44] __aligned(IO_ALIGNMENT_BYTES) = {0};
struct cipher_ctx ini = { struct cipher_ctx ini = {
.keylen = sizeof(gcm_key), .keylen = sizeof(gcm_key),
.key.bit_stream = gcm_key, .key.bit_stream = gcm_key,