Differential D17276 Diff 48655 crypto/heimdal/lib/gssapi/ntlm/crypto.c

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	v2_sign_message(gss_buffer_t in,			v2_sign_message(gss_buffer_t in,
	unsigned char signkey[16],			unsigned char signkey[16],
	RC4_KEY *sealkey,			RC4_KEY *sealkey,
	uint32_t seq,			uint32_t seq,
	unsigned char out[16])			unsigned char out[16])
	{			{
	unsigned char hmac[16];			unsigned char hmac[16];
	unsigned int hmaclen;			unsigned int hmaclen;
	HMAC_CTX c;			HMAC_CTX *c;

	HMAC_CTX_init(&c);			c = HMAC_CTX_new();
	HMAC_Init_ex(&c, signkey, 16, EVP_md5(), NULL);			if (c == NULL)
				return GSS_S_FAILURE;
				HMAC_Init_ex(c, signkey, 16, EVP_md5(), NULL);

	encode_le_uint32(seq, hmac);			encode_le_uint32(seq, hmac);
	HMAC_Update(&c, hmac, 4);			HMAC_Update(c, hmac, 4);
	HMAC_Update(&c, in->value, in->length);			HMAC_Update(c, in->value, in->length);
	HMAC_Final(&c, hmac, &hmaclen);			HMAC_Final(c, hmac, &hmaclen);
	HMAC_CTX_cleanup(&c);			HMAC_CTX_free(c);

	encode_le_uint32(1, &out[0]);			encode_le_uint32(1, &out[0]);
	if (sealkey)			if (sealkey)
	RC4(sealkey, 8, hmac, &out[4]);			RC4(sealkey, 8, hmac, &out[4]);
	else			else
	memcpy(&out[4], hmac, 8);			memcpy(&out[4], hmac, 8);

	memset(&out[12], 0, 4);			memset(&out[12], 0, 4);
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