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0af31aeb26
libsodium/test/default/sodium_utils.c
Frank Denis 0af31aeb26 Fill the max output buffer size in sodium_bin2base64() 
Unlike hex encoding, due to optional padding, computing the correct size is
not straightforward. Ensuring that the string ends with `\0` is fine, but
if the size is not exact, some unrelated data might be send around by the
application. So, zero it to be safe.
2017-08-31 19:32:14 +02:00

320 lines
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C
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#define TEST_NAME "sodium_utils"
#include "cmptest.h"
int
main(void)
{
unsigned char buf_add[1000];
unsigned char buf1[1000];
unsigned char buf2[1000];
unsigned char buf1_rev[1000];
unsigned char buf2_rev[1000];
char buf3[33];
unsigned char buf4[4];
unsigned char nonce[24];
char nonce_hex[49];
const char *b64;
char *b64_;
const char *b64_end;
unsigned char *bin;
unsigned char *bin_padded;
const char *hex;
const char *hex_end;
size_t b64_len;
size_t bin_len, bin_len2;
size_t hex_len;
size_t bin_padded_len;
size_t bin_padded_maxlen;
size_t blocksize;
unsigned int i;
unsigned int j;
randombytes_buf(buf1, sizeof buf1);
memcpy(buf2, buf1, sizeof buf2);
printf("%d\n", sodium_memcmp(buf1, buf2, sizeof buf1));
sodium_memzero(buf1, 0U);
printf("%d\n", sodium_memcmp(buf1, buf2, sizeof buf1));
sodium_memzero(buf1, sizeof buf1 / 2);
printf("%d\n", sodium_memcmp(buf1, buf2, sizeof buf1));
printf("%d\n", sodium_memcmp(buf1, buf2, 0U));
sodium_memzero(buf2, sizeof buf2 / 2);
printf("%d\n", sodium_memcmp(buf1, buf2, sizeof buf1));
printf("%s\n",
sodium_bin2hex(buf3, 33U, (const unsigned char *) "0123456789ABCDEF",
16U));
hex = "Cafe : 6942";
sodium_hex2bin(buf4, sizeof buf4, hex, strlen(hex), ": ", &bin_len,
&hex_end);
printf("%lu:%02x%02x%02x%02x\n", (unsigned long) bin_len, buf4[0], buf4[1],
buf4[2], buf4[3]);
printf("dt1: %ld\n", (long) (hex_end - hex));
hex = "Cafe : 6942";
sodium_hex2bin(buf4, sizeof buf4, hex, strlen(hex), ": ", &bin_len, NULL);
printf("%lu:%02x%02x%02x%02x\n", (unsigned long) bin_len,
buf4[2], buf4[3], buf4[2], buf4[3]);
hex = "deadbeef";
if (sodium_hex2bin(buf1, 1U, hex, 8U, NULL, &bin_len, &hex_end) != -1) {
printf("sodium_hex2bin() overflow not detected\n");
}
printf("dt2: %ld\n", (long) (hex_end - hex));
hex = "de:ad:be:eff";
if (sodium_hex2bin(buf1, 4U, hex, 12U, ":", &bin_len, &hex_end) != -1) {
printf(
"sodium_hex2bin() with an odd input length and a short output "
"buffer\n");
}
printf("dt3: %ld\n", (long) (hex_end - hex));
hex = "de:ad:be:eff";
if (sodium_hex2bin(buf1, sizeof buf1, hex, 12U, ":", &bin_len, &hex_end) !=
0) {
printf("sodium_hex2bin() with an odd input length\n");
}
printf("dt4: %ld\n", (long) (hex_end - hex));
hex = "de:ad:be:eff";
if (sodium_hex2bin(buf1, sizeof buf1, hex, 13U, ":", &bin_len, &hex_end) !=
0) {
printf("sodium_hex2bin() with an odd input length\n");
}
printf("dt5: %ld\n", (long) (hex_end - hex));
printf("%s\n",
sodium_bin2base64(buf3, 31U, (const unsigned char *) "\xfb\xf0\xf1" "0123456789ABCDEFab",
21U, sodium_base64_VARIANT_ORIGINAL));
printf("%s\n",
sodium_bin2base64(buf3, 33U, (const unsigned char *) "\xfb\xf0\xf1" "0123456789ABCDEFabc",
22U, sodium_base64_VARIANT_ORIGINAL_NO_PADDING));
printf("%s\n",
sodium_bin2base64(buf3, 31U, (const unsigned char *) "\xfb\xf0\xf1" "0123456789ABCDEFab",
21U, sodium_base64_VARIANT_URLSAFE));
printf("%s\n",
sodium_bin2base64(buf3, 33U, (const unsigned char *) "\xfb\xf0\xf1" "0123456789ABCDEFabc",
22U, sodium_base64_VARIANT_URLSAFE_NO_PADDING));
printf("%s\n",
sodium_bin2base64(buf3, 1U, NULL,
0U, sodium_base64_VARIANT_ORIGINAL));
printf("%s\n",
sodium_bin2base64(buf3, 5U, (const unsigned char *) "a",
1U, sodium_base64_VARIANT_ORIGINAL));
printf("%s\n",
sodium_bin2base64(buf3, 5U, (const unsigned char *) "ab",
2U, sodium_base64_VARIANT_ORIGINAL));
printf("%s\n",
sodium_bin2base64(buf3, 5U, (const unsigned char *) "abc",
3U, sodium_base64_VARIANT_ORIGINAL));
printf("%s\n",
sodium_bin2base64(buf3, 1U, NULL,
0U, sodium_base64_VARIANT_ORIGINAL_NO_PADDING));
printf("%s\n",
sodium_bin2base64(buf3, 3U, (const unsigned char *) "a",
1U, sodium_base64_VARIANT_ORIGINAL_NO_PADDING));
printf("%s\n",
sodium_bin2base64(buf3, 4U, (const unsigned char *) "ab",
2U, sodium_base64_VARIANT_ORIGINAL_NO_PADDING));
printf("%s\n",
sodium_bin2base64(buf3, 5U, (const unsigned char *) "abc",
3U, sodium_base64_VARIANT_ORIGINAL_NO_PADDING));
b64 = "VGhpcyBpcyBhIGpvdXJu" "\n" "ZXkgaW50by" " " "Bzb3VuZA==";
memset(buf4, '*', sizeof buf4);
assert(sodium_base642bin(buf4, sizeof buf4, b64, strlen(b64), "\n\r ", &bin_len,
&b64_end, sodium_base64_VARIANT_ORIGINAL) == -1);
buf4[bin_len] = 0;
printf("[%s]\n", (const char *) buf4);
printf("[%s]\n", b64_end);
memset(buf1, '*', sizeof buf1);
sodium_base642bin(buf1, sizeof buf1, b64, strlen(b64), "\n\r ", &bin_len,
&b64_end, sodium_base64_VARIANT_ORIGINAL);
buf1[bin_len] = 0;
printf("[%s]\n", (const char *) buf1);
assert(*b64_end == 0);
memset(buf1, '*', sizeof buf1);
sodium_base642bin(buf1, sizeof buf1, b64, strlen(b64), NULL, &bin_len,
&b64_end, sodium_base64_VARIANT_ORIGINAL);
buf1[bin_len] = 0;
printf("[%s]\n", (const char *) buf1);
printf("[%s]\n", b64_end);
assert(sodium_base642bin(buf1, sizeof buf1, b64, strlen(b64), NULL, NULL,
NULL, sodium_base64_VARIANT_ORIGINAL) == 0);
assert(sodium_base642bin(buf1, sizeof buf1, b64, strlen(b64), NULL, NULL,
NULL, sodium_base64_VARIANT_ORIGINAL_NO_PADDING) == 0);
assert(sodium_base642bin(buf1, sizeof buf1, b64, strlen(b64), " \r\n", NULL,
NULL, sodium_base64_VARIANT_ORIGINAL_NO_PADDING) == 0);
assert(sodium_base642bin(buf1, sizeof buf1, b64, strlen(b64), NULL, NULL,
NULL, sodium_base64_VARIANT_URLSAFE_NO_PADDING) == 0);
assert(sodium_base642bin(buf1, sizeof buf1, b64, strlen(b64), " \r\n", NULL,
NULL, sodium_base64_VARIANT_URLSAFE_NO_PADDING) == 0);
for (i = 0; i < 1000; i++) {
assert(sizeof buf1 >= 100);
bin_len = (size_t) randombytes_uniform(100);
bin = (unsigned char *) sodium_malloc(bin_len);
b64_len = 1 + (bin_len + 2) / 3 * 4;
b64_ = (char *) sodium_malloc(b64_len);
randombytes_buf(bin, bin_len);
memcpy(buf1, bin, bin_len);
b64 = sodium_bin2base64(b64_, b64_len, bin, bin_len,
sodium_base64_VARIANT_URLSAFE);
assert(b64 != NULL);
assert(sodium_base642bin(bin, bin_len + 10, b64, b64_len,
NULL, NULL, &b64_end,
sodium_base64_VARIANT_URLSAFE) == 0);
assert(b64_end == &b64[b64_len - 1]);
assert(memcmp(bin, buf1, bin_len) == 0);
sodium_free(bin);
sodium_free(b64_);
}
memset(nonce, 0, sizeof nonce);
sodium_increment(nonce, sizeof nonce);
printf("%s\n",
sodium_bin2hex(nonce_hex, sizeof nonce_hex, nonce, sizeof nonce));
memset(nonce, 255, sizeof nonce);
sodium_increment(nonce, sizeof nonce);
printf("%s\n",
sodium_bin2hex(nonce_hex, sizeof nonce_hex, nonce, sizeof nonce));
nonce[1] = 1U;
sodium_increment(nonce, sizeof nonce);
printf("%s\n",
sodium_bin2hex(nonce_hex, sizeof nonce_hex, nonce, sizeof nonce));
nonce[1] = 0U;
sodium_increment(nonce, sizeof nonce);
printf("%s\n",
sodium_bin2hex(nonce_hex, sizeof nonce_hex, nonce, sizeof nonce));
nonce[0] = 255U;
nonce[2] = 255U;
sodium_increment(nonce, sizeof nonce);
printf("%s\n",
sodium_bin2hex(nonce_hex, sizeof nonce_hex, nonce, sizeof nonce));
for (i = 0U; i < 1000U; i++) {
bin_len = (size_t) randombytes_uniform(sizeof buf1);
randombytes_buf(buf1, bin_len);
randombytes_buf(buf2, bin_len);
for (j = 0U; j < bin_len; j++) {
buf1_rev[bin_len - 1 - j] = buf1[j];
buf2_rev[bin_len - 1 - j] = buf2[j];
}
if (memcmp(buf1_rev, buf2_rev, bin_len) *
sodium_compare(buf1, buf2, bin_len) <
0) {
printf("sodium_compare() failure with length=%u\n",
(unsigned int) bin_len);
}
memcpy(buf1, buf2, bin_len);
if (sodium_compare(buf1, buf2, bin_len)) {
printf("sodium_compare() equality failure with length=%u\n",
(unsigned int) bin_len);
}
}
memset(buf1, 0, sizeof buf1);
if (sodium_is_zero(buf1, sizeof buf1) != 1) {
printf("sodium_is_zero() failed\n");
}
for (i = 0U; i < sizeof buf1; i++) {
buf1[i]++;
if (sodium_is_zero(buf1, sizeof buf1) != 0) {
printf("sodium_is_zero() failed\n");
}
buf1[i]--;
}
bin_len = randombytes_uniform(sizeof buf1);
randombytes_buf(buf1, bin_len);
memcpy(buf2, buf1, bin_len);
memset(buf_add, 0, bin_len);
j = randombytes_uniform(10000);
for (i = 0U; i < j; i++) {
sodium_increment(buf1, bin_len);
sodium_increment(buf_add, bin_len);
}
sodium_add(buf2, buf_add, bin_len);
if (sodium_compare(buf1, buf2, bin_len) != 0) {
printf("sodium_add() failed\n");
}
bin_len = randombytes_uniform(sizeof buf1);
randombytes_buf(buf1, bin_len);
memcpy(buf2, buf1, bin_len);
memset(buf_add, 0xff, bin_len);
sodium_increment(buf2, bin_len);
sodium_increment(buf2, 0U);
sodium_add(buf2, buf_add, bin_len);
sodium_add(buf2, buf_add, 0U);
if (sodium_compare(buf1, buf2, bin_len) != 0) {
printf("sodium_add() failed\n");
}
assert(sizeof nonce >= 24U);
memset(nonce, 0xfe, 24U);
memset(nonce, 0xff, 6U);
sodium_increment(nonce, 8U);
printf("%s\n",
sodium_bin2hex(nonce_hex, sizeof nonce_hex, nonce, sizeof nonce));
memset(nonce, 0xfe, 24U);
memset(nonce, 0xff, 10U);
sodium_increment(nonce, 12U);
printf("%s\n",
sodium_bin2hex(nonce_hex, sizeof nonce_hex, nonce, sizeof nonce));
memset(nonce, 0xff, 22U);
sodium_increment(nonce, 24U);
printf("%s\n",
sodium_bin2hex(nonce_hex, sizeof nonce_hex, nonce, sizeof nonce));
assert(sizeof nonce >= 24U);
memset(nonce, 0xfe, 24U);
memset(nonce, 0xff, 6U);
sodium_add(nonce, nonce, 7U);
sodium_add(nonce, nonce, 8U);
printf("%s\n",
sodium_bin2hex(nonce_hex, sizeof nonce_hex, nonce, sizeof nonce));
memset(nonce, 0xfe, 24U);
memset(nonce, 0xff, 10U);
sodium_add(nonce, nonce, 11U);
sodium_add(nonce, nonce, 12U);
printf("%s\n",
sodium_bin2hex(nonce_hex, sizeof nonce_hex, nonce, sizeof nonce));
memset(nonce, 0xff, 22U);
sodium_add(nonce, nonce, 23U);
sodium_add(nonce, nonce, 24U);
printf("%s\n",
sodium_bin2hex(nonce_hex, sizeof nonce_hex, nonce, sizeof nonce));
for (i = 0; i < 2000U; i++) {
bin_len = randombytes_uniform(200U);
blocksize = 1U + randombytes_uniform(100U);
bin_padded_maxlen = bin_len + (blocksize - bin_len % blocksize);
bin_padded = (unsigned char *) sodium_malloc(bin_padded_maxlen);
randombytes_buf(bin_padded, bin_padded_maxlen);
assert(sodium_pad(&bin_padded_len, bin_padded, bin_len,
blocksize, bin_padded_maxlen - 1U) == -1);
assert(sodium_pad(NULL, bin_padded, bin_len,
blocksize, bin_padded_maxlen + 1U) == 0);
assert(sodium_pad(&bin_padded_len, bin_padded, bin_len,
blocksize, bin_padded_maxlen + 1U) == 0);
assert(sodium_pad(&bin_padded_len, bin_padded, bin_len,
0U, bin_padded_maxlen) == -1);
assert(sodium_pad(&bin_padded_len, bin_padded, bin_len,
blocksize, bin_padded_maxlen) == 0);
assert(bin_padded_len == bin_padded_maxlen);
assert(sodium_unpad(&bin_len2, bin_padded, bin_padded_len,
bin_padded_len + 1U) == -1);
assert(sodium_unpad(&bin_len2, bin_padded, bin_padded_len,
0U) == -1);
assert(sodium_unpad(&bin_len2, bin_padded, bin_padded_len,
blocksize) == 0);
assert(bin_len2 == bin_len);
sodium_free(bin_padded);
}
return 0;
}
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