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totp update function

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This commit is contained in:
priscilla 2023-03-03 05:20:40 -05:00
parent b46c03b2c9
commit 263ebf00fc
No known key found for this signature in database
GPG Key ID: B0926AF5C6A7515D
1 changed files with 46 additions and 54 deletions
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100
src/util/crypto_confirmation.c
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@ -168,6 +168,44 @@ base32decode (const char *val,
} }
static char *
executive_totp (void *h_key,
size_t h_key_len,
struct GNUNET_TIME_Timestamp ts)
{
uint64_t code; /* totp code */
char *ret;
ret = NULL;
for (int i = -TIME_INTERVAL_RANGE; i<= TIME_INTERVAL_RANGE; i++)
{
code = compute_totp (ts,
i,
h_key,
h_key_len);
if (NULL == ret)
{
GNUNET_asprintf (&ret,
"%llu",
(unsigned long long) code);
}
else
{
char *tmp;
GNUNET_asprintf (&tmp,
"%s\n%llu",
ret,
(unsigned long long) code);
GNUNET_free (ret);
ret = tmp;
}
}
return ret;
}
/** /**
* It is build pos confirmation to verify payment. * It is build pos confirmation to verify payment.
* *
@ -185,7 +223,6 @@ TALER_build_pos_confirmation (const char *pos_key,
size_t pos_key_length = strlen (pos_key); size_t pos_key_length = strlen (pos_key);
void *key; /* pos_key in binary */ void *key; /* pos_key in binary */
size_t key_len; /* lengh of the key */ size_t key_len; /* lengh of the key */
uint64_t code; /* totp code */
char *ret; char *ret;
int dret; int dret;
@ -212,7 +249,6 @@ TALER_build_pos_confirmation (const char *pos_key,
GNUNET_free (key); GNUNET_free (key);
return NULL; return NULL;
case TALER_MCA_WITHOUT_PRICE: /* and 30s */ case TALER_MCA_WITHOUT_PRICE: /* and 30s */
ret = NULL;
/* Return all T-OTP codes in range separated by new lines, e.g. /* Return all T-OTP codes in range separated by new lines, e.g.
"12345678 "12345678
24522552 24522552
@ -220,42 +256,20 @@ TALER_build_pos_confirmation (const char *pos_key,
42543525 42543525
25253552" 25253552"
*/ */
for (int i = -TIME_INTERVAL_RANGE; i<= TIME_INTERVAL_RANGE; i++) ret = executive_totp (key,
{ key_len,
code = compute_totp (ts, ts);
i,
key,
key_len);
if (NULL == ret)
{
GNUNET_asprintf (&ret,
"%llu",
(unsigned long long) code);
}
else
{
char *tmp;
GNUNET_asprintf (&tmp,
"%s\n%llu",
ret,
(unsigned long long) code);
GNUNET_free (ret);
ret = tmp;
}
}
GNUNET_free (key); GNUNET_free (key);
return ret; return ret;
case TALER_MCA_WITH_PRICE: case TALER_MCA_WITH_PRICE:
{ {
struct GNUNET_HashCode hkey; struct GNUNET_HashCode *hkey;
struct TALER_AmountNBO ntotal; struct TALER_AmountNBO ntotal;
ret = NULL;
TALER_amount_hton (&ntotal, TALER_amount_hton (&ntotal,
total); total);
GNUNET_assert (GNUNET_YES == GNUNET_assert (GNUNET_YES ==
GNUNET_CRYPTO_kdf (&hkey, GNUNET_CRYPTO_kdf (hkey,
sizeof (hkey), sizeof (hkey),
&ntotal, &ntotal,
sizeof (ntotal), sizeof (ntotal),
@ -264,31 +278,9 @@ TALER_build_pos_confirmation (const char *pos_key,
NULL, NULL,
0)); 0));
GNUNET_free (key); GNUNET_free (key);
ret = executive_totp (hkey,
for (int i = -TIME_INTERVAL_RANGE; i<= TIME_INTERVAL_RANGE; i++) sizeof(hkey),
{ ts);
code = compute_totp (ts,
i,
&hkey,
sizeof (hkey));
if (NULL == ret)
{
GNUNET_asprintf (&ret,
"%llu",
(unsigned long long) code);
}
else
{
char *tmp;
GNUNET_asprintf (&tmp,
"%s\n%llu",
ret,
(unsigned long long) code);
GNUNET_free (ret);
ret = tmp;
}
}
GNUNET_free (key); GNUNET_free (key);
return ret; return ret;
} }