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-rw-r--r--scd/app-openpgp.c29
-rw-r--r--scd/command.c8
2 files changed, 26 insertions, 11 deletions
diff --git a/scd/app-openpgp.c b/scd/app-openpgp.c
index d4685916e..8a71caf36 100644
--- a/scd/app-openpgp.c
+++ b/scd/app-openpgp.c
@@ -756,20 +756,29 @@ static void
send_key_data (ctrl_t ctrl, const char *name,
const unsigned char *a, size_t alen)
{
- char *buf;
-
- buf = bin2hex (a, alen, NULL);
- if (!buf)
+ char *buffer, *buf;
+ size_t buflen;
+
+ buffer = buf = bin2hex (a, alen, NULL);
+ if (!buffer)
{
log_error ("memory allocation error in send_key_data\n");
return;
}
+ buflen = strlen (buffer);
+ /* 768 is the hexified size for the modulus of an 3072 bit key. We
+ use extra chunks to transmit larger data (i.e for 4096 bit). */
+ for ( ;buflen > 768; buflen -= 768, buf += 768)
+ send_status_info (ctrl, "KEY-DATA",
+ "-", 1,
+ buf, 768,
+ NULL, 0);
send_status_info (ctrl, "KEY-DATA",
- name, (size_t)strlen(name),
- buf, (size_t)strlen (buf),
+ name, (size_t)strlen(name),
+ buf, buflen,
NULL, 0);
- xfree (buf);
+ xfree (buffer);
}
@@ -2365,7 +2374,7 @@ change_keyattr (app_t app, int keyno, unsigned int nbits,
assert (keyno >=0 && keyno <= 2);
- if (nbits > 3072)
+ if (nbits > 4096)
return gpg_error (GPG_ERR_TOO_LARGE);
/* Read the current attributes into a buffer. */
@@ -2823,7 +2832,7 @@ do_genkey (app_t app, ctrl_t ctrl, const char *keynostr, unsigned int flags,
already lead to a 527 byte long status line and thus a 4096 bit
key would exceed the Assuan line length limit. */
keybits = app->app_local->keyattr[keyno].n_bits;
- if (keybits > 3072)
+ if (keybits > 4096)
return gpg_error (GPG_ERR_TOO_LARGE);
/* Prepare for key generation by verifying the Admin PIN. */
@@ -3377,6 +3386,8 @@ do_decipher (app_t app, const char *keyidstr,
fixuplen = 256 - indatalen;
else if (indatalen >= (384-16) && indatalen < 384) /* 3072 bit key. */
fixuplen = 384 - indatalen;
+ else if (indatalen >= (512-16) && indatalen < 512) /* 4096 bit key. */
+ fixuplen = 512 - indatalen;
else
fixuplen = 0;
diff --git a/scd/command.c b/scd/command.c
index 28bc4df41..52b22c6a0 100644
--- a/scd/command.c
+++ b/scd/command.c
@@ -1287,11 +1287,15 @@ static const char hlp_genkey[] =
"\n"
"Generate a key on-card identified by NO, which is application\n"
"specific. Return values are application specific. For OpenPGP\n"
- "cards 2 status lines are returned:\n"
+ "cards 3 status lines are returned:\n"
"\n"
" S KEY-FPR <hexstring>\n"
" S KEY-CREATED-AT <seconds_since_epoch>\n"
- " S KEY-DATA [p|n] <hexdata>\n"
+ " S KEY-DATA [-|p|n] <hexdata>\n"
+ "\n"
+ " 'p' and 'n' are the names of the RSA parameters; '-' is used to\n"
+ " indicate that HEXDATA is the first chunk of a parameter given\n"
+ " by the next KEY-DATA.\n"
"\n"
"--force is required to overwrite an already existing key. The\n"
"KEY-CREATED-AT is required for further processing because it is\n"