TeaSpeak/tomcrypt
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use zeromem() where appropriate

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This commit is contained in:
Steffen Jaeckel 2017-06-12 13:08:37 +02:00
parent 258de3cecc
commit f2076f0700
3 changed files with 3 additions and 2 deletions
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2
src/prngs/chacha20.c
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@ -71,7 +71,7 @@ int chacha20_prng_add_entropy(const unsigned char *in, unsigned long inlen, prng
/* iv 8 bytes */
if ((err = chacha_ivctr64(&prng->chacha.s, buf + 32, 8, 0)) != CRYPT_OK) goto LBL_UNLOCK;
/* clear KEY + IV */
XMEMSET(buf, 0, sizeof(buf));
zeromem(buf, sizeof(buf));
}
else {
/* chacha20_prng_ready() was not called yet, add entropy to ent buffer */

1
src/prngs/rc4.c
View File

@ -72,6 +72,7 @@ int rc4_add_entropy(const unsigned char *in, unsigned long inlen, prng_state *pr
if ((err = rc4_stream_setup(&prng->rc4.s, buf, sizeof(buf))) != CRYPT_OK) goto LBL_UNLOCK;
/* drop first 3072 bytes - https://en.wikipedia.org/wiki/RC4#Fluhrer.2C_Mantin_and_Shamir_attack */
for (i = 0; i < 12; i++) rc4_stream_keystream(&prng->rc4.s, buf, sizeof(buf));
zeromem(buf, sizeof(buf));
}
else {
/* rc4_ready() was not called yet, add entropy to the buffer */

2
src/prngs/sober128.c
View File

@ -73,7 +73,7 @@ int sober128_add_entropy(const unsigned char *in, unsigned long inlen, prng_stat
/* iv 8 bytes */
if ((err = sober128_stream_setiv(&prng->sober128.s, buf + 32, 8)) != CRYPT_OK) goto LBL_UNLOCK;
/* clear KEY + IV */
XMEMSET(buf, 0, sizeof(buf));
zeromem(buf, sizeof(buf));
}
else {
/* sober128_ready() was not called yet, add entropy to ent buffer */