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authorWerner Koch <wk@gnupg.org>2010-04-20 19:57:50 +0200
committerWerner Koch <wk@gnupg.org>2010-04-20 19:57:50 +0200
commit21b0a955be63dc69625194ece8557e79b6ad60c2 (patch)
tree97de4727b46f1f2b5dac30142e5a408c898d48fc /g10/seckey-cert.c
parentAdd missing file. (diff)
downloadgnupg2-21b0a955be63dc69625194ece8557e79b6ad60c2.tar.xz
gnupg2-21b0a955be63dc69625194ece8557e79b6ad60c2.zip
Generating an OpenPGP key cia gpg-agent basically works.
Diffstat (limited to 'g10/seckey-cert.c')
-rw-r--r--g10/seckey-cert.c208
1 files changed, 5 insertions, 203 deletions
diff --git a/g10/seckey-cert.c b/g10/seckey-cert.c
index 9995aa416..fed92134e 100644
--- a/g10/seckey-cert.c
+++ b/g10/seckey-cert.c
@@ -260,214 +260,16 @@ do_check( PKT_secret_key *sk, const char *tryagain_text, int mode,
/****************
- * Check the secret key
- * Ask up to 3 (or n) times for a correct passphrase
- * If n is negative, disable the key info prompt and make n=abs(n)
- */
-int
-check_secret_key( PKT_secret_key *sk, int n )
-{
- int rc = gpg_error (GPG_ERR_BAD_PASSPHRASE);
- int i,mode;
-
- if (sk && sk->is_protected && sk->protect.s2k.mode == 1002)
- return 0; /* Let the scdaemon handle this. */
-
- if(n<0)
- {
- n=abs(n);
- mode=1;
- }
- else
- mode=0;
-
- if( n < 1 )
- n = 3; /* Use the default value */
-
- for(i=0; i < n && gpg_err_code (rc) == GPG_ERR_BAD_PASSPHRASE; i++ ) {
- int canceled = 0;
- const char *tryagain = NULL;
- if (i) {
- tryagain = N_("Invalid passphrase; please try again");
- log_info (_("%s ...\n"), _(tryagain));
- }
- rc = do_check( sk, tryagain, mode, &canceled );
- if ( gpg_err_code (rc) == GPG_ERR_BAD_PASSPHRASE
- && is_status_enabled () ) {
- u32 kid[2];
- char buf[50];
-
- keyid_from_sk( sk, kid );
- sprintf(buf, "%08lX%08lX", (ulong)kid[0], (ulong)kid[1]);
- write_status_text( STATUS_BAD_PASSPHRASE, buf );
- }
- if( have_static_passphrase() || canceled)
- break;
- }
-
- if( !rc )
- write_status( STATUS_GOOD_PASSPHRASE );
-
- return rc;
-}
-
-/****************
* check whether the secret key is protected.
* Returns: 0 not protected, -1 on error or the protection algorithm
* -2 indicates a card stub.
* -3 indicates a not-online stub.
*/
int
-is_secret_key_protected( PKT_secret_key *sk )
+is_secret_key_protected (PKT_public_key *pk)
{
- return sk->is_protected?
- sk->protect.s2k.mode == 1002? -2 :
- sk->protect.s2k.mode == 1001? -3 : sk->protect.algo : 0;
-}
-
-
-
-/****************
- * Protect the secret key with the passphrase from DEK
- */
-int
-protect_secret_key( PKT_secret_key *sk, DEK *dek )
-{
- int i,j, rc = 0;
- byte *buffer;
- size_t nbytes;
- u16 csum;
-
- if( !dek )
- return 0;
-
- if( !sk->is_protected ) { /* okay, apply the protection */
- gcry_cipher_hd_t cipher_hd=NULL;
-
- if ( openpgp_cipher_test_algo ( sk->protect.algo ) ) {
- /* Unsupport protection algorithm. */
- rc = gpg_error (GPG_ERR_CIPHER_ALGO);
- }
- else {
- print_cipher_algo_note( sk->protect.algo );
-
- if ( openpgp_cipher_open (&cipher_hd, sk->protect.algo,
- GCRY_CIPHER_MODE_CFB,
- (GCRY_CIPHER_SECURE
- | (sk->protect.algo >= 100 ?
- 0 : GCRY_CIPHER_ENABLE_SYNC))) )
- BUG();
- if ( gcry_cipher_setkey ( cipher_hd, dek->key, dek->keylen ) )
- log_info(_("WARNING: Weak key detected"
- " - please change passphrase again.\n"));
- sk->protect.ivlen = openpgp_cipher_get_algo_blklen (sk->protect.algo);
- assert( sk->protect.ivlen <= DIM(sk->protect.iv) );
- if( sk->protect.ivlen != 8 && sk->protect.ivlen != 16 )
- BUG(); /* yes, we are very careful */
- gcry_create_nonce (sk->protect.iv, sk->protect.ivlen);
- gcry_cipher_setiv (cipher_hd, sk->protect.iv, sk->protect.ivlen);
- if( sk->version >= 4 ) {
- byte *bufarr[PUBKEY_MAX_NSKEY];
- size_t narr[PUBKEY_MAX_NSKEY];
- unsigned int nbits[PUBKEY_MAX_NSKEY];
- int ndata=0;
- byte *p, *data;
-
- for (j=0, i = pubkey_get_npkey(sk->pubkey_algo);
- i < pubkey_get_nskey(sk->pubkey_algo); i++, j++ )
- {
- assert (!gcry_mpi_get_flag (sk->skey[i],
- GCRYMPI_FLAG_OPAQUE));
- if (gcry_mpi_aprint (GCRYMPI_FMT_USG, bufarr+j,
- narr+j, sk->skey[i]))
- BUG();
- nbits[j] = gcry_mpi_get_nbits (sk->skey[i]);
- ndata += narr[j] + 2;
- }
- for ( ; j < PUBKEY_MAX_NSKEY; j++ )
- bufarr[j] = NULL;
-
- ndata += opt.simple_sk_checksum? 2 : 20; /* for checksum */
-
- data = xmalloc_secure( ndata );
- p = data;
- for(j=0; j < PUBKEY_MAX_NSKEY && bufarr[j]; j++ ) {
- p[0] = nbits[j] >> 8 ;
- p[1] = nbits[j];
- p += 2;
- memcpy(p, bufarr[j], narr[j] );
- p += narr[j];
- xfree(bufarr[j]);
- }
-
- if (opt.simple_sk_checksum) {
- log_info (_("generating the deprecated 16-bit checksum"
- " for secret key protection\n"));
- csum = checksum( data, ndata-2);
- sk->csum = csum;
- *p++ = csum >> 8;
- *p++ = csum;
- sk->protect.sha1chk = 0;
- }
- else {
- gcry_md_hd_t h;
-
- if (gcry_md_open (&h, GCRY_MD_SHA1, 1))
- BUG(); /* Algo not available. */
- gcry_md_write (h, data, ndata - 20);
- gcry_md_final (h);
- memcpy (p, gcry_md_read (h, DIGEST_ALGO_SHA1), 20);
- p += 20;
- gcry_md_close (h);
- sk->csum = csum = 0;
- sk->protect.sha1chk = 1;
- }
- assert( p == data+ndata );
-
- gcry_cipher_encrypt (cipher_hd, data, ndata, NULL, 0);
- for (i = pubkey_get_npkey(sk->pubkey_algo);
- i < pubkey_get_nskey(sk->pubkey_algo); i++ )
- {
- gcry_mpi_release (sk->skey[i]);
- sk->skey[i] = NULL;
- }
- i = pubkey_get_npkey(sk->pubkey_algo);
- sk->skey[i] = gcry_mpi_set_opaque (NULL, data, ndata*8 );
- }
- else {
- csum = 0;
- for(i=pubkey_get_npkey(sk->pubkey_algo);
- i < pubkey_get_nskey(sk->pubkey_algo); i++ ) {
- byte *data;
- unsigned int nbits;
-
- csum += checksum_mpi (sk->skey[i]);
-
- if (gcry_mpi_aprint (GCRYMPI_FMT_USG, &buffer,
- &nbytes, sk->skey[i] ))
- BUG();
- gcry_cipher_sync (cipher_hd);
- assert (!gcry_mpi_get_flag (sk->skey[i],
- GCRYMPI_FLAG_OPAQUE));
-
- data = xmalloc (nbytes+2); /* fixme: need xtrymalloc. */
- nbits = gcry_mpi_get_nbits (sk->skey[i]);
- assert (nbytes == (nbits + 7)/8);
- data[0] = nbits >> 8;
- data[1] = nbits;
- gcry_cipher_encrypt (cipher_hd, data+2, nbytes,
- buffer, nbytes);
- xfree( buffer );
-
- gcry_mpi_release (sk->skey[i]);
- sk->skey[i] = gcry_mpi_set_opaque (NULL,
- data, (nbytes+2)*8 );
- }
- sk->csum = csum;
- }
- sk->is_protected = 1;
- gcry_cipher_close (cipher_hd);
- }
- }
- return rc;
+ return 0; /* FIXME: use agent_get_keyinfo?*/
+ /* return sk->is_protected? */
+ /* sk->protect.s2k.mode == 1002? -2 : */
+ /* sk->protect.s2k.mode == 1001? -3 : sk->protect.algo : 0; */
}