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arch/xtensa/espressif: Add SHA accelerator features

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Add SHA accelerator features for esp32[-s2|-s3]

Signed-off-by: Eren Terzioglu <eren.terzioglu@espressif.com>
This commit is contained in:
Eren Terzioglu
2026-02-10 14:25:22 +01:00
committed by Xiang Xiao
parent c1f542687b
commit 515e87391a
1 changed files with 128 additions and 5 deletions
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arch/xtensa/src/common/espressif/esp_crypto.c
+128 -5
View File
@@ -59,6 +59,46 @@ SLIST_HEAD(esp_crypto_list, esp_crypto_data);
static struct esp_crypto_list *g_esp_sessions = NULL;
static uint32_t g_esp_sesnum = 0;
const struct auth_hash g_auth_hash_sha1_esp =
{
CRYPTO_SHA1, "SHA1",
0, 20, 12, sizeof(struct esp_sha1_context_s),
0,
sha1_init, NULL, NULL,
sha1_update,
sha1_final
};
const struct auth_hash g_auth_hash_sha256_esp =
{
CRYPTO_SHA2_256, "SHA256",
0, 32, 12, sizeof(struct esp_sha256_context_s),
0,
sha256_init, NULL, NULL,
sha256_update,
sha256_final
};
const struct auth_hash g_auth_hash_sha384_esp =
{
CRYPTO_SHA2_384, "SHA384",
0, 48, 12, sizeof(struct esp_sha512_context_s),
0,
sha384_init, NULL, NULL,
sha512_update,
sha512_final
};
const struct auth_hash g_auth_hash_sha512_esp =
{
CRYPTO_SHA2_512, "SHA512",
0, 64, 12, sizeof(struct esp_sha512_context_s),
0,
sha512_init, NULL, NULL,
sha512_update,
sha512_final
};
const struct auth_hash g_auth_hash_hmac_sha1_esp =
{
CRYPTO_SHA1_HMAC, "HMAC-SHA1",
@@ -344,6 +384,50 @@ static void sha512_final(uint8_t *out, void *ctx)
(unsigned char *)out);
}
/****************************************************************************
* Name: hash
*
* Description:
* Calculate the hash.
*
* Input Parameters:
* crp - The description of the crypto operation
* crd - Boundaries of the crypto operation
* data - Specific crypto operation data
* buf - Input data to be hashed
*
* Returned Value:
* OK is returned on success.
* Otherwise, a negated errno value is returned.
*
****************************************************************************/
static int hash(struct cryptop *crp,
struct cryptodesc *crd,
struct esp_crypto_data *data,
caddr_t buf)
{
const struct auth_hash *axf;
if (data->hw_ictx == 0)
{
return -EINVAL;
}
axf = data->hw_axf;
if (crd->crd_flags & CRD_F_UPDATE)
{
return axf->update(data->hw_ictx, (uint8_t *)buf, crd->crd_len);
}
else
{
axf->final((uint8_t *)crp->crp_mac, data->hw_ictx);
}
return 0;
}
/****************************************************************************
* Name: authcompute
*
@@ -390,6 +474,8 @@ static int authcompute(struct cryptop *crp, struct cryptodesc *crd,
{
case CRYPTO_SHA1_HMAC:
case CRYPTO_SHA2_256_HMAC:
case CRYPTO_SHA2_384_HMAC:
case CRYPTO_SHA2_512_HMAC:
if (data->hw_octx == NULL)
{
return -EINVAL;
@@ -488,19 +574,42 @@ static int esp_newsession(uint32_t *sid, struct cryptoini *cri)
switch (cri->cri_alg)
{
case CRYPTO_SHA1:
axf = &g_auth_hash_sha1_esp;
goto sha_common;
case CRYPTO_SHA2_256:
axf = &g_auth_hash_sha256_esp;
goto sha_common;
case CRYPTO_SHA2_384:
axf = &g_auth_hash_sha384_esp;
goto sha_common;
case CRYPTO_SHA2_512:
axf = &g_auth_hash_sha512_esp;
goto sha_common;
sha_common:
data->hw_ictx = kmm_malloc(axf->ctxsize);
if (data->hw_ictx == NULL)
{
kmm_free(data);
return -ENOBUFS;
}
axf->init(data->hw_ictx);
data->hw_axf = axf;
break;
case CRYPTO_SHA1_HMAC:
axf = &g_auth_hash_hmac_sha1_esp;
goto common;
goto hmac_common;
case CRYPTO_SHA2_256_HMAC:
axf = &g_auth_hash_hmac_sha256_esp;
goto common;
goto hmac_common;
case CRYPTO_SHA2_384_HMAC:
axf = &g_auth_hash_hmac_sha384_esp;
goto common;
goto hmac_common;
case CRYPTO_SHA2_512_HMAC:
axf = &g_auth_hash_hmac_sha512_esp;
goto common;
common:
goto hmac_common;
hmac_common:
data->hw_ictx = kmm_malloc(axf->ctxsize);
if (data->hw_ictx == NULL)
{
@@ -684,6 +793,16 @@ static int esp_process(struct cryptop *crp)
switch (data->alg)
{
case CRYPTO_SHA1:
case CRYPTO_SHA2_256:
case CRYPTO_SHA2_384:
case CRYPTO_SHA2_512:
if ((crp->crp_etype = hash(crp, crd, data,
crp->crp_buf)) != 0)
{
return 0;
}
break;
case CRYPTO_SHA1_HMAC:
case CRYPTO_SHA2_256_HMAC:
case CRYPTO_SHA2_384_HMAC:
@@ -727,6 +846,10 @@ void hwcr_init(void)
memset(algs, 0, sizeof(algs));
algs[CRYPTO_SHA1] = CRYPTO_ALG_FLAG_SUPPORTED;
algs[CRYPTO_SHA2_256] = CRYPTO_ALG_FLAG_SUPPORTED;
algs[CRYPTO_SHA2_384] = CRYPTO_ALG_FLAG_SUPPORTED;
algs[CRYPTO_SHA2_512] = CRYPTO_ALG_FLAG_SUPPORTED;
algs[CRYPTO_SHA1_HMAC] = CRYPTO_ALG_FLAG_SUPPORTED;
algs[CRYPTO_SHA2_256_HMAC] = CRYPTO_ALG_FLAG_SUPPORTED;
algs[CRYPTO_SHA2_384_HMAC] = CRYPTO_ALG_FLAG_SUPPORTED;