commit 1 of 50 ??

This says to me: push more often. How can the mynewt community review your
work, if you never push it?

On Mon, Jan 23, 2017 at 9:02 PM, <[email protected]> wrote:

> Repository: incubator-mynewt-core
> Updated Branches:
>   refs/heads/sensors_branch 6247b5afa -> 2681044e8
>
>
> nimble/sm: Use TinyCrypt for AES
>
> TinyCrypt is smaller than mbedTLS and is already used for ECDH.
> Using TC for all crypto in SM results in following code size reductions
> for bletiny application:
>
> Legacy Pairing only from
> >     250     277 *fill*
> >   11160       0 crypto_mbedtls.a
> >   48581    3410 net_nimble_host.a
> >  144992    2784   15788  163564   27eec apps/bletiny/bletiny.elf
>
> to
> <     252     277 *fill*
> <    1112       0 crypto_tinycrypt.a
> <   48563    3130 net_nimble_host.a
> <  134928    2784   15508  153220   25684 app/apps/bletiny/bletiny.elf
>
> Legacy + LE SC from
> >     264     276 *fill*
> >   11160       0 crypto_mbedtls.a
> >   51881    3627 net_nimble_host.a
> >  152272    2980   16004  171256   29cf8 app/apps/bletiny/bletiny.elf
>
> to
> <     254     276 *fill*
> <   51863    3347 net_nimble_host.a
> <  141084    2980   15724  159788   2702c app/apps/bletiny/bletiny.elf
>
>
> Project: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/repo
> Commit: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-
> core/commit/2785cad5
> Tree: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-
> core/tree/2785cad5
> Diff: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-
> core/diff/2785cad5
>
> Branch: refs/heads/sensors_branch
> Commit: 2785cad50147160d21bef9aef143199f294ed093
> Parents: a46fdfe
> Author: Szymon Janc <[email protected]>
> Authored: Wed Jan 18 14:24:44 2017 +0100
> Committer: Szymon Janc <[email protected]>
> Committed: Wed Jan 18 14:54:44 2017 +0100
>
> ----------------------------------------------------------------------
>  net/nimble/host/pkg.yml          |  2 +-
>  net/nimble/host/src/ble_sm_alg.c | 21 +++++++--------------
>  2 files changed, 8 insertions(+), 15 deletions(-)
> ----------------------------------------------------------------------
>
>
> http://git-wip-us.apache.org/repos/asf/incubator-mynewt-
> core/blob/2785cad5/net/nimble/host/pkg.yml
> ----------------------------------------------------------------------
> diff --git a/net/nimble/host/pkg.yml b/net/nimble/host/pkg.yml
> index f7539a4..d025934 100644
> --- a/net/nimble/host/pkg.yml
> +++ b/net/nimble/host/pkg.yml
> @@ -31,7 +31,7 @@ pkg.deps:
>      - util/mem
>
>  pkg.deps.BLE_SM_LEGACY:
> -    - crypto/mbedtls
> +    - crypto/tinycrypt
>
>  pkg.deps.BLE_SM_SC:
>      - crypto/tinycrypt
>
> http://git-wip-us.apache.org/repos/asf/incubator-mynewt-
> core/blob/2785cad5/net/nimble/host/src/ble_sm_alg.c
> ----------------------------------------------------------------------
> diff --git a/net/nimble/host/src/ble_sm_alg.c
> b/net/nimble/host/src/ble_sm_alg.c
> index 8a5365d..f8208b4 100644
> --- a/net/nimble/host/src/ble_sm_alg.c
> +++ b/net/nimble/host/src/ble_sm_alg.c
> @@ -28,20 +28,15 @@
>  #include "nimble/ble.h"
>  #include "nimble/nimble_opt.h"
>  #include "ble_hs_priv.h"
> -#include "mbedtls/aes.h"
> -
> -#if MYNEWT_VAL(BLE_SM_SC)
> -
>  #include "tinycrypt/aes.h"
>  #include "tinycrypt/constants.h"
>  #include "tinycrypt/utils.h"
> +
> +#if MYNEWT_VAL(BLE_SM_SC)
>  #include "tinycrypt/cmac_mode.h"
>  #include "tinycrypt/ecc_dh.h"
> -
>  #endif
>
> -static mbedtls_aes_context ble_sm_alg_ctxt;
> -
>  static void
>  ble_sm_alg_xor_128(uint8_t *p, uint8_t *q, uint8_t *r)
>  {
> @@ -55,22 +50,20 @@ ble_sm_alg_xor_128(uint8_t *p, uint8_t *q, uint8_t *r)
>  static int
>  ble_sm_alg_encrypt(uint8_t *key, uint8_t *plaintext, uint8_t *enc_data)
>  {
> -    mbedtls_aes_init(&ble_sm_alg_ctxt);
> +    struct tc_aes_key_sched_struct s;
>      uint8_t tmp[16];
> -    int rc;
>
>      swap_buf(tmp, key, 16);
>
> -    rc = mbedtls_aes_setkey_enc(&ble_sm_alg_ctxt, tmp, 128);
> -    if (rc != 0) {
> +    if (tc_aes128_set_encrypt_key(&s, tmp) == TC_CRYPTO_FAIL) {
>          return BLE_HS_EUNKNOWN;
>      }
>
>      swap_buf(tmp, plaintext, 16);
>
> -    rc = mbedtls_aes_crypt_ecb(&ble_sm_alg_ctxt, MBEDTLS_AES_ENCRYPT,
> -                               tmp, enc_data);
> -    if (rc != 0) {
> +
> +
> +    if (tc_aes_encrypt(enc_data, tmp, &s) == TC_CRYPTO_FAIL) {
>          return BLE_HS_EUNKNOWN;
>      }
>
>
>

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