diff options
author | Pascal van Leeuwen <pascalvanl@gmail.com> | 2019-09-13 17:20:37 +0200 |
---|---|---|
committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-10-05 01:06:03 +1000 |
commit | aa3a43e6e41901a82e47aee172df1eb406470f94 (patch) | |
tree | f3f42fb7c00ada17a32d8231d906e62ade7b0806 /drivers/crypto/inside-secure | |
parent | 0f2bc13181ce22d365929176a3d3d47fb857c202 (diff) |
crypto: inside-secure - Added support for HMAC-SM3 ahash
Added support for the hmac(sm3) ahash authentication algorithm
changes since v1:
- added Acked-by tag below, no changes to the source
changes since v2:
- nothing
Acked-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: Pascal van Leeuwen <pvanleeuwen@verimatrix.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/inside-secure')
-rw-r--r-- | drivers/crypto/inside-secure/safexcel.c | 1 | ||||
-rw-r--r-- | drivers/crypto/inside-secure/safexcel.h | 1 | ||||
-rw-r--r-- | drivers/crypto/inside-secure/safexcel_hash.c | 70 |
3 files changed, 72 insertions, 0 deletions
diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c index 32682e0cf84e..87d431afd44d 100644 --- a/drivers/crypto/inside-secure/safexcel.c +++ b/drivers/crypto/inside-secure/safexcel.c @@ -1177,6 +1177,7 @@ static struct safexcel_alg_template *safexcel_algs[] = { &safexcel_alg_chachapoly, &safexcel_alg_chachapoly_esp, &safexcel_alg_sm3, + &safexcel_alg_hmac_sm3, }; 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 e2993b58e596..1b2d709dff39 100644 --- a/drivers/crypto/inside-secure/safexcel.h +++ b/drivers/crypto/inside-secure/safexcel.h @@ -877,5 +877,6 @@ extern struct safexcel_alg_template safexcel_alg_chacha20; extern struct safexcel_alg_template safexcel_alg_chachapoly; extern struct safexcel_alg_template safexcel_alg_chachapoly_esp; extern struct safexcel_alg_template safexcel_alg_sm3; +extern struct safexcel_alg_template safexcel_alg_hmac_sm3; #endif diff --git a/drivers/crypto/inside-secure/safexcel_hash.c b/drivers/crypto/inside-secure/safexcel_hash.c index 873b77449b90..272e5fd0de7e 100644 --- a/drivers/crypto/inside-secure/safexcel_hash.c +++ b/drivers/crypto/inside-secure/safexcel_hash.c @@ -2285,3 +2285,73 @@ struct safexcel_alg_template safexcel_alg_sm3 = { }, }, }; + +static int safexcel_hmac_sm3_setkey(struct crypto_ahash *tfm, const u8 *key, + unsigned int keylen) +{ + return safexcel_hmac_alg_setkey(tfm, key, keylen, "safexcel-sm3", + SM3_DIGEST_SIZE); +} + +static int safexcel_hmac_sm3_init(struct ahash_request *areq) +{ + struct safexcel_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); + struct safexcel_ahash_req *req = ahash_request_ctx(areq); + + memset(req, 0, sizeof(*req)); + + /* Start from ipad precompute */ + memcpy(req->state, ctx->ipad, SM3_DIGEST_SIZE); + /* Already processed the key^ipad part now! */ + req->len = SM3_BLOCK_SIZE; + req->processed = SM3_BLOCK_SIZE; + + ctx->alg = CONTEXT_CONTROL_CRYPTO_ALG_SM3; + req->digest = CONTEXT_CONTROL_DIGEST_PRECOMPUTED; + req->state_sz = SM3_DIGEST_SIZE; + req->block_sz = SM3_BLOCK_SIZE; + req->hmac = true; + + return 0; +} + +static int safexcel_hmac_sm3_digest(struct ahash_request *areq) +{ + int ret = safexcel_hmac_sm3_init(areq); + + if (ret) + return ret; + + return safexcel_ahash_finup(areq); +} + +struct safexcel_alg_template safexcel_alg_hmac_sm3 = { + .type = SAFEXCEL_ALG_TYPE_AHASH, + .algo_mask = SAFEXCEL_ALG_SM3, + .alg.ahash = { + .init = safexcel_hmac_sm3_init, + .update = safexcel_ahash_update, + .final = safexcel_ahash_final, + .finup = safexcel_ahash_finup, + .digest = safexcel_hmac_sm3_digest, + .setkey = safexcel_hmac_sm3_setkey, + .export = safexcel_ahash_export, + .import = safexcel_ahash_import, + .halg = { + .digestsize = SM3_DIGEST_SIZE, + .statesize = sizeof(struct safexcel_ahash_export_state), + .base = { + .cra_name = "hmac(sm3)", + .cra_driver_name = "safexcel-hmac-sm3", + .cra_priority = SAFEXCEL_CRA_PRIORITY, + .cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_KERN_DRIVER_ONLY, + .cra_blocksize = SM3_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct safexcel_ahash_ctx), + .cra_init = safexcel_ahash_cra_init, + .cra_exit = safexcel_ahash_cra_exit, + .cra_module = THIS_MODULE, + }, + }, + }, +}; |