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(heim_ntlm_build_ntlm1_master): return session master key.

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@19442 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2006-12-19 15:33:17 +00:00
parent 4a70c638b0
commit 10483c353c
1 changed files with 34 additions and 19 deletions
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53
lib/ntlm/ntlm.c
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@@ -768,38 +768,53 @@ heim_ntlm_calculate_ntlm1(void *key, size_t len,
int
heim_ntlm_build_ntlm1_master(void *key, size_t len,
struct ntlm_buf *session,
struct ntlm_buf *master)
{
unsigned char sessionkey[MD4_DIGEST_LENGTH];
unsigned char masterkey[MD4_DIGEST_LENGTH];
MD4_CTX ctx;
RC4_KEY rc4;
if (len != MD4_DIGEST_LENGTH)
return EINVAL;
session->length = MD4_DIGEST_LENGTH;
session->data = malloc(session->length);
if (session->data == NULL)
goto out;
master->length = MD4_DIGEST_LENGTH;
master->data = malloc(master->length);
if (master->data == NULL)
return ENOMEM;
MD4_Init(&ctx);
MD4_Update(&ctx, key, len);
MD4_Final(sessionkey, &ctx);
RC4_set_key(&rc4, sizeof(sessionkey), sessionkey);
if (RAND_bytes(masterkey, sizeof(masterkey)) != 1) {
free(master->data);
master->data = NULL;
master->length = 0;
return EINVAL;
if (master->data == NULL) {
free(session->data);
goto out;
}
RC4(&rc4, master->length, masterkey, master->data);
{
unsigned char sessionkey[MD4_DIGEST_LENGTH];
MD4_CTX ctx;
MD4_Init(&ctx);
MD4_Update(&ctx, key, len);
MD4_Final(sessionkey, &ctx);
RC4_set_key(&rc4, sizeof(sessionkey), sessionkey);
}
if (RAND_bytes(session->data, session->length) != 1) {
free(master->data);
free(session->data);
goto out;
}
RC4(&rc4, master->length, session->data, master->data);
memset(&rc4, 0, sizeof(rc4));
return 0;
out:
master->data = NULL;
master->length = 0;
session->data = NULL;
session->length = 0;
return EINVAL;
}