scripts/key2keyid.c

   1
   2 #include <stdio.h>
   3 #include <library.h>
   4 #include <debug.h>
   5 #include <credentials/keys/private_key.h>
   6 #include <credentials/keys/public_key.h>
   7
   8 /**
   9  * print the keyids of a private or public key
  10  */
  11 int main(int argc, char *argv[])
  12 {
  13         public_key_t *public;
  14         private_key_t *private;
  15         chunk_t chunk;
  16         char buf[8096];
  17         int read;
  18
  19         library_init(NULL);
  20         lib->plugins->load(lib->plugins, IPSEC_PLUGINDIR, "gmp pubkey sha1");
  21         atexit(library_deinit);
  22
  23         read = fread(buf, 1, sizeof(buf), stdin);
  24         if (read <= 0)
  25         {
  26                 fprintf(stderr, "reading key failed.\n");
  27                 return -1;
  28         }
  29
  30         chunk = chunk_create(buf, read);
  31
  32         private = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, KEY_RSA,
  33                                                                  BUILD_BLOB_ASN1_DER, chunk_clone(chunk),
  34                                                                  BUILD_END);
  35         if (private)
  36         {
  37                 printf("parsed %d bits %N private key.\n",
  38                            private->get_keysize(private)*8,
  39                            key_type_names, private->get_type(private));
  40                 printf("%N is:\t %D\n", id_type_names, ID_PUBKEY_INFO_SHA1,
  41                            private->get_id(private, ID_PUBKEY_INFO_SHA1));
  42                 printf("%N is:\t %D\n", id_type_names, ID_PUBKEY_SHA1,
  43                            private->get_id(private, ID_PUBKEY_SHA1));
  44                 private->destroy(private);
  45                 return 0;
  46         }
  47
  48         public = lib->creds->create(lib->creds, CRED_PUBLIC_KEY, KEY_ANY,
  49                                                                 BUILD_BLOB_ASN1_DER, chunk_clone(chunk),
  50                                                                 BUILD_END);
  51         if (!public)
  52         {
  53                 public = lib->creds->create(lib->creds, CRED_PUBLIC_KEY, KEY_RSA,
  54                                                                         BUILD_BLOB_ASN1_DER, chunk_clone(chunk),
  55                                                                         BUILD_END);
  56         }
  57         if (public)
  58         {
  59                 printf("parsed %d bits %N public key.\n",
  60                            public->get_keysize(public)*8,
  61                            key_type_names, public->get_type(public));
  62                 printf("%N is:\t %D\n", id_type_names, ID_PUBKEY_INFO_SHA1,
  63                            public->get_id(public, ID_PUBKEY_INFO_SHA1));
  64                 printf("%N is:\t %D\n", id_type_names, ID_PUBKEY_SHA1,
  65                            public->get_id(public, ID_PUBKEY_SHA1));
  66                 public->destroy(public);
  67                 return 0;
  68         }
  69
  70         fprintf(stderr, "unable to parse input key.\n");
  71         return -1;
  72 }
  73