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377b2b624d
Use specific instructions for moving bytes around in a word. This speeds
things up, and as a side-effect, slightly lowers code size.
ARIA_P3 and ARIA_P1 are now 1 single-cycle instruction each (those
instructions are available in all architecture versions starting from v6-M).
Note: ARIA_P3 was already translated to a single instruction by Clang 3.8 and
armclang 6.5, but not arm-gcc 5.4 nor armcc 5.06.
ARIA_P2 is already efficiently translated to the minimal number of
instruction (1 in ARM mode, 2 in thumb mode) by all tested compilers
Manually compiled and inspected generated code with the following compilers:
arm-gcc 5.4, clang 3.8, armcc 5.06 (with and without --gnu), armclang 6.5.
Size reduction (arm-none-eabi-gcc -march=armv6-m -mthumb -Os): 5288 -> 5044 B
Effect on executing time of self-tests on a few boards:
FRDM-K64F (Cortex-M4): 444 -> 385 us (-13%)
LPC1768 (Cortex-M3): 488 -> 432 us (-11%)
FRDM-KL64Z (Cortex-M0): 1429 -> 1134 us (-20%)
Measured using a config.h with no cipher mode and the following program with
aria.c and aria.h copy-pasted to the online compiler:
#include "mbed.h"
#include "aria.h"
int main() {
Timer t;
t.start();
int ret = mbedtls_aria_self_test(0);
t.stop();
printf("ret = %d; time = %d us\n", ret, t.read_us());
}
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| .. | ||
| .gitignore | ||
| aes.c | ||
| aesni.c | ||
| arc4.c | ||
| aria.c | ||
| asn1parse.c | ||
| asn1write.c | ||
| base64.c | ||
| bignum.c | ||
| blowfish.c | ||
| camellia.c | ||
| ccm.c | ||
| certs.c | ||
| cipher.c | ||
| cipher_wrap.c | ||
| cmac.c | ||
| CMakeLists.txt | ||
| ctr_drbg.c | ||
| debug.c | ||
| des.c | ||
| dhm.c | ||
| ecdh.c | ||
| ecdsa.c | ||
| ecjpake.c | ||
| ecp.c | ||
| ecp_curves.c | ||
| entropy.c | ||
| entropy_poll.c | ||
| error.c | ||
| gcm.c | ||
| havege.c | ||
| hmac_drbg.c | ||
| Makefile | ||
| md.c | ||
| md2.c | ||
| md4.c | ||
| md5.c | ||
| md_wrap.c | ||
| memory_buffer_alloc.c | ||
| net_sockets.c | ||
| oid.c | ||
| padlock.c | ||
| pem.c | ||
| pk.c | ||
| pk_wrap.c | ||
| pkcs5.c | ||
| pkcs11.c | ||
| pkcs12.c | ||
| pkparse.c | ||
| pkwrite.c | ||
| platform.c | ||
| ripemd160.c | ||
| rsa.c | ||
| rsa_internal.c | ||
| sha1.c | ||
| sha256.c | ||
| sha512.c | ||
| ssl_cache.c | ||
| ssl_ciphersuites.c | ||
| ssl_cli.c | ||
| ssl_cookie.c | ||
| ssl_srv.c | ||
| ssl_ticket.c | ||
| ssl_tls.c | ||
| threading.c | ||
| timing.c | ||
| version.c | ||
| version_features.c | ||
| x509.c | ||
| x509_create.c | ||
| x509_crl.c | ||
| x509_crt.c | ||
| x509_csr.c | ||
| x509write_crt.c | ||
| x509write_csr.c | ||
| xtea.c | ||