xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[CRYPTO] crc32c: Fix unconventional setkey usage

Browse Source 
The convention for setkey is that once it is set it should not change,
in particular, init must not wipe out the key set by it.  In fact, init
should always be used after setkey before any digestion is performed.

The only user of crc32c that sets the key is tcrypt.  This patch adds
the necessary init calls there.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu
2006-08-06 23:03:08 +10:00
parent 58ec415289
commit 25cdbcd9e5
2 changed files with 19 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
crypto/tcrypt.c
View File

@@ -810,6 +810,7 @@ static void test_crc32c(void)
seed = SEEDTESTVAL;
(void)crypto_digest_setkey(tfm, (const u8*)&seed, sizeof(u32));
crypto_digest_init(tfm);
crypto_digest_final(tfm, (u8*)&crc);
printk("testing crc32c setkey returns %08x : %s\n", crc, (crc == (SEEDTESTVAL ^ ~(u32)0)) ?
"pass" : "ERROR");
@@ -821,6 +822,7 @@ static void test_crc32c(void)
for (i = 0; i < NUMVEC; i++) {
seed = ~(u32)0;
(void)crypto_digest_setkey(tfm, (const u8*)&seed, sizeof(u32));
crypto_digest_init(tfm);
crypto_digest_update(tfm, &sg[i], 1);
crypto_digest_final(tfm, (u8*)&crc);
if (crc == vec_results[i]) {
@@ -836,6 +838,7 @@ static void test_crc32c(void)
for (i = 0; i < NUMVEC; i++) {
seed = (crc ^ ~(u32)0);
(void)crypto_digest_setkey(tfm, (const u8*)&seed, sizeof(u32));
crypto_digest_init(tfm);
crypto_digest_update(tfm, &sg[i], 1);
crypto_digest_final(tfm, (u8*)&crc);
}
@@ -849,6 +852,7 @@ static void test_crc32c(void)
printk("\ntesting crc32c using digest:\n");
seed = ~(u32)0;
(void)crypto_digest_setkey(tfm, (const u8*)&seed, sizeof(u32));
crypto_digest_init(tfm);
crypto_digest_digest(tfm, sg, NUMVEC, (u8*)&crc);
if (crc == tot_vec_results) {
printk(" %08x:OK", crc);