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(_gss_ntlm_set_key): set ntlm v2 keys.

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@19529 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2006-12-28 14:38:07 +00:00
parent d296c67503
commit 2412c6be41
1 changed files with 51 additions and 0 deletions
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51
lib/gssapi/ntlm/crypto.c
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@@ -61,6 +61,57 @@ decode_le_uint32(const void *ptr, uint32_t *n)
*n = (p[0] << 0) | (p[1] << 8) | (p[2] << 16) | (p[3] << 24);
}
/*
*
*/
const char a2i_signmagic[] =
"session key to server-to-client signing key magic constant";
const char a2i_sealmagic[] =
"session key to server-to-client sealing key magic constant";
const char i2a_signmagic[] =
"session key to client-to-server signing key magic constant";
const char i2a_sealmagic[] =
"session key to client-to-server sealing key magic constant";
void
_gss_ntlm_set_key(struct ntlmv2_key *key, int acceptor,
unsigned char *data, size_t len)
{
unsigned char out[16];
MD5_CTX ctx;
const char *signmagic;
const char *sealmagic;
if (acceptor) {
signmagic = a2i_signmagic;
sealmagic = a2i_sealmagic;
} else {
signmagic = i2a_signmagic;
sealmagic = i2a_sealmagic;
}
key->seq = 0;
MD5_Init(&ctx);
MD5_Update(&ctx, data, len);
MD5_Update(&ctx, signmagic, strlen(signmagic) + 1);
MD5_Final(key->signkey, &ctx);
MD5_Init(&ctx);
MD5_Update(&ctx, data, len);
MD5_Update(&ctx, sealmagic, strlen(sealmagic) + 1);
MD5_Final(out, &ctx);
RC4_set_key(&key->sealkey, 16, out);
key->signsealkey = &key->sealkey;
}
/*
*
*/
static OM_uint32
v1_sign_message(gss_buffer_t in,
RC4_KEY *signkey,