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crypto: inside-secure - Add SHA3 family of basic hash algorithms 

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@verimatrix.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Pascal van Leeuwen 2019-09-13 20:56:47 +02:00 committed by Herbert Xu
parent 1769f704e5
commit aaf5a3839a
3 changed files with 364 additions and 0 deletions
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4
drivers/crypto/inside-secure/safexcel.c
View File

@ -1187,6 +1187,10 @@ static struct safexcel_alg_template *safexcel_algs[] = {
&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)

9
drivers/crypto/inside-secure/safexcel.h
View File

@ -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 @@ extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha1_cbc_sm4;
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

351
drivers/crypto/inside-secure/safexcel_hash.c
View File

@ -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,
},
},
},
};