Skip to content

Commit dcebb52

Browse files
sjaeckelsjaeckel
committed
use reference-keys for timing of ECC and RSA
1 parent 59e7c88 commit dcebb52

File tree

1 file changed

+59
-63
lines changed

1 file changed

+59
-63
lines changed

‎demos/timing.c‎

Lines changed: 59 additions & 63 deletions
Original file line numberDiff line numberDiff line change
@@ -73,6 +73,9 @@ static void tally_results(int type)
7373
}
7474
}
7575
}
76+
#if defined(LTC_MRSA) || defined(LTC_MECC)
77+
static void read_key(const char *alg, unsigned long sz, void *buf, unsigned long *l);
78+
#endif
7679

7780
#define CSV_SEP ","
7881
#define OUTFILE stdout
@@ -739,25 +742,22 @@ static void time_rsa(void)
739742
{
740743
rsa_key key;
741744
ulong64 t1, t2;
742-
unsigned char buf[2][2048] =
745+
unsigned char buf[2][4096] =
743746
{ 0 };
744747
unsigned long x, y, z, zzz;
745-
int err, zz;
748+
int zz;
746749

747750
if (ltc_mp.name == NULL) return;
748751

749752
print_csv_header("keysize", NULL);
750753
for (x = 2048; x <= 8192; x <<= 1) {
751754

755+
#ifndef TIMING_DONT_MAKE_KEY
752756
t2 = 0;
753757
for (y = 0; y < 4; y++) {
754758
t_start();
755759
t1 = t_read();
756-
if ((err = rsa_make_key(&yarrow_prng, find_prng("yarrow"), x / 8, 65537, &key)) != CRYPT_OK) {
757-
fprintf(stderr, "\n\nrsa_make_key says %s, wait...no it should say %s...damn you!\n", error_to_string(err),
758-
error_to_string(CRYPT_OK));
759-
exit(EXIT_FAILURE);
760-
}
760+
DO(rsa_make_key(&yarrow_prng, find_prng("yarrow"), x / 8, 65537, &key));
761761
t1 = t_read() - t1;
762762
t2 += t1;
763763

@@ -770,19 +770,20 @@ static void time_rsa(void)
770770
}
771771
t2 >>= 2;
772772
print_csv("RSA", "make_key", x, t2);
773+
#endif
774+
775+
zzz = sizeof(buf);
776+
read_key("RSA", x, buf, &zzz);
777+
778+
DO(rsa_import((void*)buf, zzz, &key));
773779

774780
t2 = 0;
775781
for (y = 0; y < 256; y++) {
776782
t_start();
777783
t1 = t_read();
778784
z = sizeof(buf[1]);
779-
if ((err = rsa_encrypt_key(buf[0], 32, buf[1], &z, (const unsigned char * )"testprog", 8, &yarrow_prng,
780-
find_prng("yarrow"), find_hash("sha1"), &key))
781-
!= CRYPT_OK) {
782-
fprintf(stderr, "\n\nrsa_encrypt_key says %s, wait...no it should say %s...damn you!\n",
783-
error_to_string(err), error_to_string(CRYPT_OK));
784-
exit(EXIT_FAILURE);
785-
}
785+
DO(rsa_encrypt_key(buf[0], 32, buf[1], &z, (const unsigned char * )"testprog", 8, &yarrow_prng,
786+
find_prng("yarrow"), find_hash("sha1"), &key));
786787
t1 = t_read() - t1;
787788
t2 += t1;
788789
#ifdef LTC_PROFILE
@@ -798,13 +799,8 @@ static void time_rsa(void)
798799
t_start();
799800
t1 = t_read();
800801
zzz = sizeof(buf[0]);
801-
if ((err = rsa_decrypt_key(buf[1], z, buf[0], &zzz, (const unsigned char * )"testprog", 8, find_hash("sha1"),
802-
&zz, &key))
803-
!= CRYPT_OK) {
804-
fprintf(stderr, "\n\nrsa_decrypt_key says %s, wait...no it should say %s...damn you!\n",
805-
error_to_string(err), error_to_string(CRYPT_OK));
806-
exit(EXIT_FAILURE);
807-
}
802+
DO(rsa_decrypt_key(buf[1], z, buf[0], &zzz, (const unsigned char * )"testprog", 8, find_hash("sha1"),
803+
&zz, &key));
808804
t1 = t_read() - t1;
809805
t2 += t1;
810806
#ifdef LTC_PROFILE
@@ -820,11 +816,7 @@ static void time_rsa(void)
820816
t_start();
821817
t1 = t_read();
822818
z = sizeof(buf[1]);
823-
if ((err = rsa_sign_hash(buf[0], 20, buf[1], &z, &yarrow_prng, find_prng("yarrow"), find_hash("sha1"), 8, &key)) != CRYPT_OK) {
824-
fprintf(stderr, "\n\nrsa_sign_hash says %s, wait...no it should say %s...damn you!\n", error_to_string(err),
825-
error_to_string(CRYPT_OK));
826-
exit(EXIT_FAILURE);
827-
}
819+
DO(rsa_sign_hash(buf[0], 20, buf[1], &z, &yarrow_prng, find_prng("yarrow"), find_hash("sha1"), 8, &key));
828820
t1 = t_read() - t1;
829821
t2 += t1;
830822
#ifdef LTC_PROFILE
@@ -840,11 +832,7 @@ static void time_rsa(void)
840832
int stat;
841833
t_start();
842834
t1 = t_read();
843-
if ((err = rsa_verify_hash(buf[1], z, buf[0], 20, find_hash("sha1"), 8, &stat, &key)) != CRYPT_OK) {
844-
fprintf(stderr, "\n\nrsa_verify_hash says %s, wait...no it should say %s...damn you!\n",
845-
error_to_string(err), error_to_string(CRYPT_OK));
846-
exit(EXIT_FAILURE);
847-
}
835+
DO(rsa_verify_hash(buf[1], z, buf[0], 20, find_hash("sha1"), 8, &stat, &key));
848836
if (stat == 0) {
849837
fprintf(stderr, "\n\nrsa_verify_hash for RSA-%lu failed to verify signature(%lu)\n", x, y);
850838
exit(EXIT_FAILURE);
@@ -872,7 +860,6 @@ static void time_dh(void)
872860
dh_key key;
873861
ulong64 t1, t2;
874862
unsigned long i, x, y;
875-
int err;
876863
static unsigned long sizes[] = {768/8, 1024/8, 1536/8, 2048/8,
877864
#ifndef TFM_DESC
878865
3072/8, 4096/8, 6144/8, 8192/8,
@@ -886,17 +873,11 @@ static void time_dh(void)
886873
for (x = sizes[i=0]; x < 100000; x = sizes[++i]) {
887874
t2 = 0;
888875
for (y = 0; y < 16; y++) {
889-
if((err = dh_set_pg_groupsize(x, &key)) != CRYPT_OK) {
890-
fprintf(stderr, "\n\ndh_set_pg_groupsize says %s, wait...no it should say %s...damn you!\n", error_to_string(err), error_to_string(CRYPT_OK));
891-
exit(EXIT_FAILURE);
892-
}
876+
DO(dh_set_pg_groupsize(x, &key));
893877

894878
t_start();
895879
t1 = t_read();
896-
if ((err = dh_generate_key(&yarrow_prng, find_prng("yarrow"), &key)) != CRYPT_OK) {
897-
fprintf(stderr, "\n\ndh_make_key says %s, wait...no it should say %s...damn you!\n", error_to_string(err), error_to_string(CRYPT_OK));
898-
exit(EXIT_FAILURE);
899-
}
880+
DO(dh_generate_key(&yarrow_prng, find_prng("yarrow"), &key));
900881
t1 = t_read() - t1;
901882
t2 += t1;
902883

@@ -945,20 +926,19 @@ static void time_ecc(void)
945926
ulong64 t1, t2;
946927
unsigned char buf[2][256] = { 0 };
947928
unsigned long i, w, x, y, z;
948-
int err, stat;
929+
int stat;
949930

950931
if (ltc_mp.name == NULL) return;
951932

952933
print_csv_header("keysize", NULL);
953934
for (x = ecc_key_sizes[i=0]; x < 100000; x = ecc_key_sizes[++i]) {
935+
936+
#ifndef TIMING_DONT_MAKE_KEY
954937
t2 = 0;
955938
for (y = 0; y < 256; y++) {
956939
t_start();
957940
t1 = t_read();
958-
if ((err = ecc_make_key(&yarrow_prng, find_prng("yarrow"), x/8, &key)) != CRYPT_OK) {
959-
fprintf(stderr, "\n\necc_make_key says %s, wait...no it should say %s...damn you!\n", error_to_string(err), error_to_string(CRYPT_OK));
960-
exit(EXIT_FAILURE);
961-
}
941+
DO(ecc_make_key(&yarrow_prng, find_prng("yarrow"), x/8, &key));
962942
t1 = t_read() - t1;
963943
t2 += t1;
964944

@@ -973,17 +953,20 @@ static void time_ecc(void)
973953
}
974954
t2 >>= 8;
975955
print_csv("ECC", "make_key", x, t2);
956+
#endif
957+
958+
w = sizeof(buf[0]);
959+
read_key("ECC", x, buf[0], &w);
960+
961+
DO(ecc_import(buf[0], w, &key));
976962

977963
t2 = 0;
978964
for (y = 0; y < 256; y++) {
979965
t_start();
980966
t1 = t_read();
981967
z = sizeof(buf[1]);
982-
if ((err = ecc_encrypt_key(buf[0], 20, buf[1], &z, &yarrow_prng, find_prng("yarrow"), find_hash("sha1"),
983-
&key)) != CRYPT_OK) {
984-
fprintf(stderr, "\n\necc_encrypt_key says %s, wait...no it should say %s...damn you!\n", error_to_string(err), error_to_string(CRYPT_OK));
985-
exit(EXIT_FAILURE);
986-
}
968+
DO(ecc_encrypt_key(buf[0], 20, buf[1], &z, &yarrow_prng, find_prng("yarrow"), find_hash("sha1"),
969+
&key));
987970
t1 = t_read() - t1;
988971
t2 += t1;
989972
#ifdef LTC_PROFILE
@@ -999,10 +982,7 @@ static void time_ecc(void)
999982
t_start();
1000983
t1 = t_read();
1001984
w = 20;
1002-
if ((err = ecc_decrypt_key(buf[1], z, buf[0], &w, &key)) != CRYPT_OK) {
1003-
fprintf(stderr, "\n\necc_decrypt_key says %s, wait...no it should say %s...damn you!\n", error_to_string(err), error_to_string(CRYPT_OK));
1004-
exit(EXIT_FAILURE);
1005-
}
985+
DO(ecc_decrypt_key(buf[1], z, buf[0], &w, &key));
1006986
t1 = t_read() - t1;
1007987
t2 += t1;
1008988
#ifdef LTC_PROFILE
@@ -1018,11 +998,8 @@ static void time_ecc(void)
1018998
t_start();
1019999
t1 = t_read();
10201000
z = sizeof(buf[1]);
1021-
if ((err = ecc_sign_hash(buf[0], 20, buf[1], &z, &yarrow_prng,
1022-
find_prng("yarrow"), &key)) != CRYPT_OK) {
1023-
fprintf(stderr, "\n\necc_sign_hash says %s, wait...no it should say %s...damn you!\n", error_to_string(err), error_to_string(CRYPT_OK));
1024-
exit(EXIT_FAILURE);
1025-
}
1001+
DO(ecc_sign_hash(buf[0], 20, buf[1], &z, &yarrow_prng,
1002+
find_prng("yarrow"), &key));
10261003
t1 = t_read() - t1;
10271004
t2 += t1;
10281005
#ifdef LTC_PROFILE
@@ -1037,10 +1014,7 @@ static void time_ecc(void)
10371014
for (y = 0; y < 256; y++) {
10381015
t_start();
10391016
t1 = t_read();
1040-
if ((err = ecc_verify_hash(buf[1], z, buf[0], 20, &stat, &key)) != CRYPT_OK) {
1041-
fprintf(stderr, "\n\necc_verify_hash says %s, wait...no it should say %s...damn you!\n", error_to_string(err), error_to_string(CRYPT_OK));
1042-
exit(EXIT_FAILURE);
1043-
}
1017+
DO(ecc_verify_hash(buf[1], z, buf[0], 20, &stat, &key));
10441018
if (stat == 0) {
10451019
fprintf(stderr, "\n\necc_verify_hash for ECC-%lu failed to verify signature(%lu)\n", x, y);
10461020
exit(EXIT_FAILURE);
@@ -1066,6 +1040,28 @@ static void time_ecc(void) { fprintf(stderr, "NO ECC\n"); }
10661040
/* generate fresh PKA keys for the timing operations */
10671041
#if defined(LTC_MRSA) || defined(LTC_MECC)
10681042

1043+
static void read_key(const char *alg, unsigned long sz, void *buf, unsigned long *l)
1044+
{
1045+
char name[PATH_MAX];
1046+
FILE *f;
1047+
size_t n;
1048+
1049+
snprintf(name, sizeof(name) - 1, "demos/keys/%s-%lu.privkey", alg, sz);
1050+
f = fopen(name, "rb");
1051+
if (f == NULL) {
1052+
fprintf(stderr, "can't open %s", name);
1053+
exit(EXIT_FAILURE);
1054+
}
1055+
n = fread(buf, 1, *l, f);
1056+
if (feof(f)) {
1057+
*l = n;
1058+
} else if (ferror(f)) {
1059+
fprintf(stderr, "reading of %s errored", name);
1060+
exit(EXIT_FAILURE);
1061+
}
1062+
fclose(f);
1063+
}
1064+
10691065
static void write_key(const char *alg, unsigned long sz, struct list *elmnt, void *buf, unsigned long l)
10701066
{
10711067
char name[PATH_MAX];

0 commit comments

Comments
 (0)