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DTLS RFC4347 requires client to use rame random field in reply to

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HelloVerifyRequest [from HEAD].
This commit is contained in:
Andy Polyakov
2007-09-30 19:15:46 +00:00
parent c4b0d7879e
commit 0fc3d51b7d
1 changed files with 14 additions and 3 deletions
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17
ssl/d1_clnt.c
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@@ -219,6 +219,8 @@ int dtls1_connect(SSL *s)
s->state=SSL3_ST_CW_CLNT_HELLO_A;
s->ctx->stats.sess_connect++;
s->init_num=0;
/* mark client_random uninitialized */
memset(s->s3->client_random,0,sizeof(s->s3->client_random));
break;
case SSL3_ST_CW_CLNT_HELLO_A:
@@ -422,6 +424,9 @@ int dtls1_connect(SSL *s)
s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;
}
s->init_num=0;
/* mark client_random uninitialized */
memset (s->s3->client_random,0,sizeof(s->s3->client_random));
break;
case SSL3_ST_CR_FINISHED_A:
@@ -544,9 +549,15 @@ int dtls1_client_hello(SSL *s)
/* else use the pre-loaded session */
p=s->s3->client_random;
Time=(unsigned long)time(NULL); /* Time */
l2n(Time,p);
RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-sizeof(Time));
/* if client_random is initialized, reuse it, we are
* required to use same upon reply to HelloVerify */
for (i=0;p[i]=='\0' && i<sizeof(s->s3->client_random);i++) ;
if (i==sizeof(s->s3->client_random))
{
Time=(unsigned long)time(NULL); /* Time */
l2n(Time,p);
RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4);
}
/* Do the message type and length last */
d=p= &(buf[DTLS1_HM_HEADER_LENGTH]);