kevin/libsodium
1
Fork 0
mirror of https://github.com/jedisct1/libsodium.git synced 2024-12-28 22:21:15 -07:00
Code Releases Wiki Activity

Use meaningful variable names instead of having to comment them

Browse Source
This commit is contained in:
Frank Denis 2015-05-27 16:29:57 +02:00
parent 67305902ee
commit 8920cde3a3
2 changed files with 25 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
demos/auth.c
View File

@ -18,46 +18,42 @@
static int
auth(void)
{
unsigned char k[crypto_auth_KEYBYTES]; /* key */
unsigned char a[crypto_auth_BYTES]; /* authentication token */
unsigned char m[MAX_INPUT_SIZE]; /* message */
size_t mlen; /* message length */
int r;
unsigned char key[crypto_auth_KEYBYTES];
unsigned char mac[crypto_auth_BYTES];
unsigned char message[MAX_INPUT_SIZE];
size_t message_len;
int ret;
puts("Example: crypto_auth\n");
/*
* Keys are entered as ascii values. The key is zeroed to
* maintain consistency. Input is read through a special
* function which reads exactly n bytes into a buffer to
* prevent buffer overflows.
*/
memset(k, 0, sizeof k);
prompt_input("Input your key > ", (char*)k, sizeof k);
puts("Your key that you entered");
print_hex(k, sizeof k);
memset(key, 0, sizeof key);
prompt_input("Enter a key > ", (char*)key, sizeof key);
puts("Complete key:");
print_hex(key, sizeof key);
putchar('\n');
mlen = prompt_input("Input your message > ", (char*)m, sizeof m);
message_len = prompt_input("Enter a message > ",
(char*)message, sizeof message);
putchar('\n');
printf("Generating %s authentication...\n", crypto_auth_primitive());
crypto_auth(a, m, mlen, k);
crypto_auth(mac, message, message_len, key);
puts("Format: authentication token::message");
print_hex(a, sizeof a);
puts("Format: authentication tag::message");
print_hex(mac, sizeof mac);
fputs("::", stdout);
puts((const char*)m);
puts((const char*)message);
putchar('\n');
puts("Verifying authentication...");
r = crypto_auth_verify(a, m, mlen, k);
print_verification(r);
puts("Verifying authentication tag...");
ret = crypto_auth_verify(mac, message, message_len, key);
print_verification(ret);
sodium_memzero(k, sizeof k); /* wipe sensitive data */
sodium_memzero(a, sizeof a);
sodium_memzero(m, sizeof m);
return r;
sodium_memzero(key, sizeof key); /* wipe sensitive data */
sodium_memzero(mac, sizeof mac);
sodium_memzero(message, sizeof message);
return ret;
}
int

4
demos/utils.c
View File

@ -70,9 +70,9 @@ void
print_verification(int r)
{
if (r == 0)
puts("Success\n");
puts("Success!\n");
else
puts("Failure\n");
puts("Failure.\n");
}
void