scripts/pubkey_speed.c

   1
   2 #include <stdio.h>
   3 #include <time.h>
   4 #include <library.h>
   5 #include <debug.h>
   6 #include <credentials/keys/private_key.h>
   7
   8 void start_timing(struct timespec *start)
   9 {
  10         clock_gettime(CLOCK_THREAD_CPUTIME_ID, start);
  11 }
  12
  13 double end_timing(struct timespec *start)
  14 {
  15         struct timespec end;
  16
  17         clock_gettime(CLOCK_THREAD_CPUTIME_ID, &end);
  18         return (end.tv_nsec - start->tv_nsec) / 1000000000.0 +
  19                         (end.tv_sec - start->tv_sec) * 1.0;
  20 }
  21
  22 static void usage()
  23 {
  24         printf("usage: pubkey_speed plugins rsa|ecdsa rounds\n");
  25         exit(1);
  26 }
  27
  28 int main(int argc, char *argv[])
  29 {
  30         private_key_t *private;
  31         public_key_t *public;
  32         struct timespec timing;
  33         int round, rounds, read;
  34         char buf[8096], *pos = buf;
  35         key_type_t type = KEY_ANY;
  36         signature_scheme_t scheme = SIGN_UNKNOWN;
  37         chunk_t keydata, *sigs, data;
  38
  39         if (argc < 4)
  40         {
  41                 usage();
  42         }
  43
  44         rounds = atoi(argv[3]);
  45
  46         if (streq(argv[2], "rsa"))
  47         {
  48                 type = KEY_RSA;
  49                 scheme = SIGN_RSA_EMSA_PKCS1_SHA1;
  50         }
  51         else if (streq(argv[2], "ecdsa"))
  52         {
  53                 type = KEY_ECDSA;
  54         }
  55         else
  56         {
  57                 usage();
  58         }
  59
  60         library_init(NULL);
  61         lib->plugins->load(lib->plugins, NULL, argv[1]);
  62         atexit(library_deinit);
  63
  64         keydata = chunk_create(buf, 0);
  65         while ((read = fread(pos, 1, sizeof(buf) - (pos - buf), stdin)))
  66         {
  67                 pos += read;
  68                 keydata.len += read;
  69         }
  70
  71         private = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, type,
  72                                                                  BUILD_BLOB_PEM, keydata, BUILD_END);
  73         if (!private)
  74         {
  75                 printf("parsing private key failed.\n");
  76                 exit(1);
  77         }
  78         if (type == KEY_ECDSA)
  79         {
  80                 switch (private->get_keysize(private))
  81                 {
  82                         case 256:
  83                                 scheme = SIGN_ECDSA_256;
  84                                 break;
  85                         case 384:
  86                                 scheme = SIGN_ECDSA_384;
  87                                 break;
  88                         case 521:
  89                                 scheme = SIGN_ECDSA_521;
  90                                 break;
  91                         default:
  92                                 printf("%d bit ECDSA private key size not supported",
  93                                                 private->get_keysize(private));
  94                                 exit(1);
  95                 }
  96         }
  97
  98         printf("%4d bit %N: ", private->get_keysize(private),
  99                 key_type_names, type);
 100
 101         sigs = malloc(sizeof(chunk_t) * rounds);
 102
 103         data = chunk_from_chars(0x01,0x02,0x03,0x04,0x05,0x06,0x07);
 104         start_timing(&timing);
 105         for (round = 0; round < rounds; round++)
 106         {
 107                 if (!private->sign(private, scheme, data, &sigs[round]))
 108                 {
 109                         printf("creating signature failed\n");
 110                         exit(1);
 111                 }
 112         };
 113         printf("sign()/s: %8.1f   ", rounds / end_timing(&timing));
 114
 115         public = private->get_public_key(private);
 116         if (!public)
 117         {
 118                 printf("extracting public key failed\n");
 119                 exit(1);
 120         }
 121         start_timing(&timing);
 122         for (round = 0; round < rounds; round++)
 123         {
 124                 if (!public->verify(public, scheme, data, sigs[round]))
 125                 {
 126                         printf("signature verification failed\n");
 127                         exit(1);
 128                 }
 129         }
 130         printf("verify()/s: %8.1f\n", rounds / end_timing(&timing));
 131         public->destroy(public);
 132         private->destroy(private);
 133
 134         for (round = 0; round < rounds; round++)
 135         {
 136                 free(sigs[round].ptr);
 137         }
 138         free(sigs);
 139         return 0;
 140 }
 141