This patch adds support for sha3-224, sha3-256, sha3-384 and sha3-512
basic hashes.
The patch has been tested with the eip197c_iewxkbc configuration on the
Xilinx VCU118 development board, including the testmgr extra tests.
changes since v1:
- nothing
Signed-off-by: Pascal van Leeuwen <pvanleeuwen@xxxxxxxxxxxxxx>
---
drivers/crypto/inside-secure/safexcel.c | 4 +
drivers/crypto/inside-secure/safexcel.h | 9 +
drivers/crypto/inside-secure/safexcel_hash.c | 351 +++++++++++++++++++++++++++
3 files changed, 364 insertions(+)
diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c
index 8f7fdd0..4c91bbf 100644
--- a/drivers/crypto/inside-secure/safexcel.c
+++ b/drivers/crypto/inside-secure/safexcel.c
@@ -1187,6 +1187,10 @@ static int safexcel_request_ring_irq(void *pdev, int irqid,
&safexcel_alg_authenc_hmac_sm3_cbc_sm4,
&safexcel_alg_authenc_hmac_sha1_ctr_sm4,
&safexcel_alg_authenc_hmac_sm3_ctr_sm4,
+ &safexcel_alg_sha3_224,
+ &safexcel_alg_sha3_256,
+ &safexcel_alg_sha3_384,
+ &safexcel_alg_sha3_512,
};
static int safexcel_register_algorithms(struct safexcel_crypto_priv *priv)
diff --git a/drivers/crypto/inside-secure/safexcel.h b/drivers/crypto/inside-secure/safexcel.h
index 1d75044..f41982d 100644
--- a/drivers/crypto/inside-secure/safexcel.h
+++ b/drivers/crypto/inside-secure/safexcel.h
@@ -360,6 +360,7 @@ struct safexcel_context_record {
#define CONTEXT_CONTROL_CRYPTO_ALG_AES256 (0x7 << 17)
#define CONTEXT_CONTROL_CRYPTO_ALG_CHACHA20 (0x8 << 17)
#define CONTEXT_CONTROL_CRYPTO_ALG_SM4 (0xd << 17)
+#define CONTEXT_CONTROL_DIGEST_INITIAL (0x0 << 21)
#define CONTEXT_CONTROL_DIGEST_PRECOMPUTED (0x1 << 21)
#define CONTEXT_CONTROL_DIGEST_XCM (0x2 << 21)
#define CONTEXT_CONTROL_DIGEST_HMAC (0x3 << 21)
@@ -375,6 +376,10 @@ struct safexcel_context_record {
#define CONTEXT_CONTROL_CRYPTO_ALG_XCBC192 (0x2 << 23)
#define CONTEXT_CONTROL_CRYPTO_ALG_XCBC256 (0x3 << 23)
#define CONTEXT_CONTROL_CRYPTO_ALG_SM3 (0x7 << 23)
+#define CONTEXT_CONTROL_CRYPTO_ALG_SHA3_256 (0xb << 23)
+#define CONTEXT_CONTROL_CRYPTO_ALG_SHA3_224 (0xc << 23)
+#define CONTEXT_CONTROL_CRYPTO_ALG_SHA3_512 (0xd << 23)
+#define CONTEXT_CONTROL_CRYPTO_ALG_SHA3_384 (0xe << 23)
#define CONTEXT_CONTROL_CRYPTO_ALG_POLY1305 (0xf << 23)
#define CONTEXT_CONTROL_INV_FR (0x5 << 24)
#define CONTEXT_CONTROL_INV_TR (0x6 << 24)
@@ -888,5 +893,9 @@ int safexcel_hmac_setkey(const char *alg, const u8 *key, unsigned int keylen,
extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sm3_cbc_sm4;
extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha1_ctr_sm4;
extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sm3_ctr_sm4;
+extern struct safexcel_alg_template safexcel_alg_sha3_224;
+extern struct safexcel_alg_template safexcel_alg_sha3_256;
+extern struct safexcel_alg_template safexcel_alg_sha3_384;
+extern struct safexcel_alg_template safexcel_alg_sha3_512;
#endif
diff --git a/drivers/crypto/inside-secure/safexcel_hash.c b/drivers/crypto/inside-secure/safexcel_hash.c
index 272e5fd..1d67cf2 100644
--- a/drivers/crypto/inside-secure/safexcel_hash.c
+++ b/drivers/crypto/inside-secure/safexcel_hash.c
@@ -9,6 +9,7 @@
#include <crypto/hmac.h>
#include <crypto/md5.h>
#include <crypto/sha.h>
+#include <crypto/sha3.h>
#include <crypto/skcipher.h>
#include <crypto/sm3.h>
#include <linux/device.h>
@@ -24,11 +25,14 @@ struct safexcel_ahash_ctx {
u32 alg;
u8 key_sz;
bool cbcmac;
+ bool do_fallback;
+ bool fb_init_done;
u32 ipad[SHA512_DIGEST_SIZE / sizeof(u32)];
u32 opad[SHA512_DIGEST_SIZE / sizeof(u32)];
struct crypto_cipher *kaes;
+ struct crypto_ahash *fback;
};
struct safexcel_ahash_req {
@@ -2355,3 +2359,350 @@ struct safexcel_alg_template safexcel_alg_hmac_sm3 = {
},
},
};
+
+static int safexcel_sha3_224_init(struct ahash_request *areq)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
+ struct safexcel_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct safexcel_ahash_req *req = ahash_request_ctx(areq);
+
+ memset(req, 0, sizeof(*req));
+
+ ctx->alg = CONTEXT_CONTROL_CRYPTO_ALG_SHA3_224;
+ req->digest = CONTEXT_CONTROL_DIGEST_INITIAL;
+ req->state_sz = SHA3_224_DIGEST_SIZE;
+ req->block_sz = SHA3_224_BLOCK_SIZE;
+ ctx->do_fallback = false;
+ ctx->fb_init_done = false;
+ return 0;
+}
+
+static int safexcel_sha3_fbcheck(struct ahash_request *req)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct safexcel_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct ahash_request *subreq = ahash_request_ctx(req);
+ int ret = 0;
+
+ if (ctx->do_fallback) {
+ ahash_request_set_tfm(subreq, ctx->fback);
+ ahash_request_set_callback(subreq, req->base.flags,
+ req->base.complete, req->base.data);
+ ahash_request_set_crypt(subreq, req->src, req->result,
+ req->nbytes);
+ if (!ctx->fb_init_done) {
+ ret = crypto_ahash_init(subreq);
+ ctx->fb_init_done = true;
+ }
+ }
+ return ret;
+}
+
+static int safexcel_sha3_update(struct ahash_request *req)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct safexcel_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct ahash_request *subreq = ahash_request_ctx(req);
+
+ ctx->do_fallback = true;
+ return safexcel_sha3_fbcheck(req) ?: crypto_ahash_update(subreq);
+}
+
+static int safexcel_sha3_final(struct ahash_request *req)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct safexcel_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct ahash_request *subreq = ahash_request_ctx(req);
+
+ ctx->do_fallback = true;
+ return safexcel_sha3_fbcheck(req) ?: crypto_ahash_final(subreq);
+}
+
+static int safexcel_sha3_finup(struct ahash_request *req)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct safexcel_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct ahash_request *subreq = ahash_request_ctx(req);
+
+ ctx->do_fallback |= !req->nbytes;
+ if (ctx->do_fallback)
+ /* Update or ex/import happened or len 0, cannot use the HW */
+ return safexcel_sha3_fbcheck(req) ?:
+ crypto_ahash_finup(subreq);
+ else
+ return safexcel_ahash_finup(req);
+}
+
+static int safexcel_sha3_digest_fallback(struct ahash_request *req)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct safexcel_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct ahash_request *subreq = ahash_request_ctx(req);
+
+ ctx->do_fallback = true;
+ ctx->fb_init_done = false;
+ return safexcel_sha3_fbcheck(req) ?: crypto_ahash_finup(subreq);
+}
+
+static int safexcel_sha3_224_digest(struct ahash_request *req)
+{
+ if (req->nbytes)
+ return safexcel_sha3_224_init(req) ?: safexcel_ahash_finup(req);
+
+ /* HW cannot do zero length hash, use fallback instead */
+ return safexcel_sha3_digest_fallback(req);
+}
+
+static int safexcel_sha3_export(struct ahash_request *req, void *out)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct safexcel_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct ahash_request *subreq = ahash_request_ctx(req);
+
+ ctx->do_fallback = true;
+ return safexcel_sha3_fbcheck(req) ?: crypto_ahash_export(subreq, out);
+}
+
+static int safexcel_sha3_import(struct ahash_request *req, const void *in)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct safexcel_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct ahash_request *subreq = ahash_request_ctx(req);
+
+ ctx->do_fallback = true;
+ return safexcel_sha3_fbcheck(req) ?: crypto_ahash_import(subreq, in);
+ // return safexcel_ahash_import(req, in);
+}
+
+static int safexcel_sha3_cra_init(struct crypto_tfm *tfm)
+{
+ struct crypto_ahash *ahash = __crypto_ahash_cast(tfm);
+ struct safexcel_ahash_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_ahash_cra_init(tfm);
+
+ /* Allocate fallback implementation */
+ ctx->fback = crypto_alloc_ahash(crypto_tfm_alg_name(tfm), 0,
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_NEED_FALLBACK);
+ if (IS_ERR(ctx->fback))
+ return PTR_ERR(ctx->fback);
+
+ /* Update statesize from fallback algorithm! */
+ crypto_hash_alg_common(ahash)->statesize =
+ crypto_ahash_statesize(ctx->fback);
+ crypto_ahash_set_reqsize(ahash, max(sizeof(struct safexcel_ahash_req),
+ sizeof(struct ahash_request) +
+ crypto_ahash_reqsize(ctx->fback)));
+ return 0;
+}
+
+static void safexcel_sha3_cra_exit(struct crypto_tfm *tfm)
+{
+ struct safexcel_ahash_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ crypto_free_ahash(ctx->fback);
+ safexcel_ahash_cra_exit(tfm);
+}
+
+struct safexcel_alg_template safexcel_alg_sha3_224 = {
+ .type = SAFEXCEL_ALG_TYPE_AHASH,
+ .algo_mask = SAFEXCEL_ALG_SHA3,
+ .alg.ahash = {
+ .init = safexcel_sha3_224_init,
+ .update = safexcel_sha3_update,
+ .final = safexcel_sha3_final,
+ .finup = safexcel_sha3_finup,
+ .digest = safexcel_sha3_224_digest,
+ .export = safexcel_sha3_export,
+ .import = safexcel_sha3_import,
+ .halg = {
+ .digestsize = SHA3_224_DIGEST_SIZE,
+ .statesize = sizeof(struct safexcel_ahash_export_state),
+ .base = {
+ .cra_name = "sha3-224",
+ .cra_driver_name = "safexcel-sha3-224",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SHA3_224_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_ahash_ctx),
+ .cra_init = safexcel_sha3_cra_init,
+ .cra_exit = safexcel_sha3_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+ },
+};
+
+static int safexcel_sha3_256_init(struct ahash_request *areq)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
+ struct safexcel_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct safexcel_ahash_req *req = ahash_request_ctx(areq);
+
+ memset(req, 0, sizeof(*req));
+
+ ctx->alg = CONTEXT_CONTROL_CRYPTO_ALG_SHA3_256;
+ req->digest = CONTEXT_CONTROL_DIGEST_INITIAL;
+ req->state_sz = SHA3_256_DIGEST_SIZE;
+ req->block_sz = SHA3_256_BLOCK_SIZE;
+ ctx->do_fallback = false;
+ ctx->fb_init_done = false;
+ return 0;
+}
+
+static int safexcel_sha3_256_digest(struct ahash_request *req)
+{
+ if (req->nbytes)
+ return safexcel_sha3_256_init(req) ?: safexcel_ahash_finup(req);
+
+ /* HW cannot do zero length hash, use fallback instead */
+ return safexcel_sha3_digest_fallback(req);
+}
+
+struct safexcel_alg_template safexcel_alg_sha3_256 = {
+ .type = SAFEXCEL_ALG_TYPE_AHASH,
+ .algo_mask = SAFEXCEL_ALG_SHA3,
+ .alg.ahash = {
+ .init = safexcel_sha3_256_init,
+ .update = safexcel_sha3_update,
+ .final = safexcel_sha3_final,
+ .finup = safexcel_sha3_finup,
+ .digest = safexcel_sha3_256_digest,
+ .export = safexcel_sha3_export,
+ .import = safexcel_sha3_import,
+ .halg = {
+ .digestsize = SHA3_256_DIGEST_SIZE,
+ .statesize = sizeof(struct safexcel_ahash_export_state),
+ .base = {
+ .cra_name = "sha3-256",
+ .cra_driver_name = "safexcel-sha3-256",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SHA3_256_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_ahash_ctx),
+ .cra_init = safexcel_sha3_cra_init,
+ .cra_exit = safexcel_sha3_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+ },
+};
+
+static int safexcel_sha3_384_init(struct ahash_request *areq)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
+ struct safexcel_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct safexcel_ahash_req *req = ahash_request_ctx(areq);
+
+ memset(req, 0, sizeof(*req));
+
+ ctx->alg = CONTEXT_CONTROL_CRYPTO_ALG_SHA3_384;
+ req->digest = CONTEXT_CONTROL_DIGEST_INITIAL;
+ req->state_sz = SHA3_384_DIGEST_SIZE;
+ req->block_sz = SHA3_384_BLOCK_SIZE;
+ ctx->do_fallback = false;
+ ctx->fb_init_done = false;
+ return 0;
+}
+
+static int safexcel_sha3_384_digest(struct ahash_request *req)
+{
+ if (req->nbytes)
+ return safexcel_sha3_384_init(req) ?: safexcel_ahash_finup(req);
+
+ /* HW cannot do zero length hash, use fallback instead */
+ return safexcel_sha3_digest_fallback(req);
+}
+
+struct safexcel_alg_template safexcel_alg_sha3_384 = {
+ .type = SAFEXCEL_ALG_TYPE_AHASH,
+ .algo_mask = SAFEXCEL_ALG_SHA3,
+ .alg.ahash = {
+ .init = safexcel_sha3_384_init,
+ .update = safexcel_sha3_update,
+ .final = safexcel_sha3_final,
+ .finup = safexcel_sha3_finup,
+ .digest = safexcel_sha3_384_digest,
+ .export = safexcel_sha3_export,
+ .import = safexcel_sha3_import,
+ .halg = {
+ .digestsize = SHA3_384_DIGEST_SIZE,
+ .statesize = sizeof(struct safexcel_ahash_export_state),
+ .base = {
+ .cra_name = "sha3-384",
+ .cra_driver_name = "safexcel-sha3-384",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SHA3_384_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_ahash_ctx),
+ .cra_init = safexcel_sha3_cra_init,
+ .cra_exit = safexcel_sha3_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+ },
+};
+
+static int safexcel_sha3_512_init(struct ahash_request *areq)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
+ struct safexcel_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct safexcel_ahash_req *req = ahash_request_ctx(areq);
+
+ memset(req, 0, sizeof(*req));
+
+ ctx->alg = CONTEXT_CONTROL_CRYPTO_ALG_SHA3_512;
+ req->digest = CONTEXT_CONTROL_DIGEST_INITIAL;
+ req->state_sz = SHA3_512_DIGEST_SIZE;
+ req->block_sz = SHA3_512_BLOCK_SIZE;
+ ctx->do_fallback = false;
+ ctx->fb_init_done = false;
+ return 0;
+}
+
+static int safexcel_sha3_512_digest(struct ahash_request *req)
+{
+ if (req->nbytes)
+ return safexcel_sha3_512_init(req) ?: safexcel_ahash_finup(req);
+
+ /* HW cannot do zero length hash, use fallback instead */
+ return safexcel_sha3_digest_fallback(req);
+}
+
+struct safexcel_alg_template safexcel_alg_sha3_512 = {
+ .type = SAFEXCEL_ALG_TYPE_AHASH,
+ .algo_mask = SAFEXCEL_ALG_SHA3,
+ .alg.ahash = {
+ .init = safexcel_sha3_512_init,
+ .update = safexcel_sha3_update,
+ .final = safexcel_sha3_final,
+ .finup = safexcel_sha3_finup,
+ .digest = safexcel_sha3_512_digest,
+ .export = safexcel_sha3_export,
+ .import = safexcel_sha3_import,
+ .halg = {
+ .digestsize = SHA3_512_DIGEST_SIZE,
+ .statesize = sizeof(struct safexcel_ahash_export_state),
+ .base = {
+ .cra_name = "sha3-512",
+ .cra_driver_name = "safexcel-sha3-512",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SHA3_512_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_ahash_ctx),
+ .cra_init = safexcel_sha3_cra_init,
+ .cra_exit = safexcel_sha3_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+ },
+};
--
1.8.3.1
