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Change loops conditions to make zero loop risk more obvious.

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Fixes openssl#18073.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Todd Short <todd.short@me.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18327)
This commit is contained in:
Daniel Fiala 2022-05-15 04:39:50 +02:00 committed by Pauli
parent 272138795f
commit 36c269c302
2 changed files with 6 additions and 2 deletions
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2
crypto/aria/aria.c
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@ -498,7 +498,7 @@ void ossl_aria_encrypt(const unsigned char *in, unsigned char *out,
ARIA_ADD_ROUND_KEY(rk, reg0, reg1, reg2, reg3);
rk++;
while (Nr -= 2) {
while ((Nr -= 2) > 0) {
ARIA_SUBST_DIFF_EVEN(reg0, reg1, reg2, reg3);
ARIA_ADD_ROUND_KEY(rk, reg0, reg1, reg2, reg3);
rk++;

6
crypto/modes/gcm128.c
View File

@ -545,7 +545,11 @@ static void gcm_ghash_4bit(u64 Xi[2], const u128 Htable[16],
Xi[0] = Z.hi;
Xi[1] = Z.lo;
}
} while (inp += 16, len -= 16);
inp += 16;
/* Block size is 128 bits so len is a multiple of 16 */
len -= 16;
} while (len > 0);
}
# endif
# else