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wdp
2024-12-15 20:42:32 +08:00
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GB28181Device/bm/digcalc.cpp Normal file
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/***************************************************************************************
*
* IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
*
* By downloading, copying, installing or using the software you agree to this license.
* If you do not agree to this license, do not download, install,
* copy or use the software.
*
* Copyright (C) 2014-2022, Happytimesoft Corporation, all rights reserved.
*
* Redistribution and use in binary forms, with or without modification, are permitted.
*
* Unless required by applicable law or agreed to in writing, software distributed
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, either express or implied. See the License for the specific
* language governing permissions and limitations under the License.
*
****************************************************************************************/
#include "sys_inc.h"
#include "rfc_md5.h"
#include "digcalc.h"
/* calculate H(A1) as per spec */
void DigestCalcHA1(
IN const char * pszAlg,
IN const char * pszUserName,
IN const char * pszRealm,
IN const char * pszPassword,
IN const char * pszNonce,
IN const char * pszCNonce,
OUT HASHHEX SessionKey
)
{
MD5_CTX Md5Ctx;
HASH HA1;
MD5Init(&Md5Ctx);
MD5Update(&Md5Ctx, (uint8 *)pszUserName, strlen(pszUserName));
MD5Update(&Md5Ctx, (uint8 *)&(":"), 1);
MD5Update(&Md5Ctx, (uint8 *)pszRealm, strlen(pszRealm));
MD5Update(&Md5Ctx, (uint8 *)&(":"), 1);
MD5Update(&Md5Ctx, (uint8 *)pszPassword, strlen(pszPassword));
MD5Final(HA1, &Md5Ctx);
if (strcmp(pszAlg, "md5-sess") == 0)
{
MD5Init(&Md5Ctx);
MD5Update(&Md5Ctx, HA1, HASHLEN);
MD5Update(&Md5Ctx, (uint8 *)&(":"), 1);
MD5Update(&Md5Ctx, (uint8 *)pszNonce, strlen(pszNonce));
MD5Update(&Md5Ctx, (uint8 *)&(":"), 1);
MD5Update(&Md5Ctx, (uint8 *)pszCNonce, strlen(pszCNonce));
MD5Final(HA1, &Md5Ctx);
};
BinToHexStr(HA1, SessionKey);
};
/* calculate request-digest/response-digest as per HTTP Digest spec */
void DigestCalcResponseHash(
IN HASHHEX HA1, /* H(A1) */
IN const char * pszNonce, /* nonce from server */
IN const char * pszNonceCount, /* 8 hex digits */
IN const char * pszCNonce, /* client nonce */
IN const char * pszQop, /* qop-value: "", "auth", "auth-int" */
IN const char * pszMethod, /* method from the request */
IN const char * pszDigestUri, /* requested URL */
IN HASHHEX HEntity, /* H(entity body) if qop="auth-int" */
OUT HASH RespHash /* request-digest or response-digest */
)
{
MD5_CTX Md5Ctx;
HASH HA2;
HASHHEX HA2Hex;
// calculate H(A2)
MD5Init(&Md5Ctx);
MD5Update(&Md5Ctx, (uint8 *)pszMethod, strlen(pszMethod));
MD5Update(&Md5Ctx, (uint8 *)&(":"), 1);
MD5Update(&Md5Ctx, (uint8 *)pszDigestUri, strlen(pszDigestUri));
if (strcmp(pszQop, "auth-int") == 0)
{
MD5Update(&Md5Ctx, (uint8 *)&(":"), 1);
MD5Update(&Md5Ctx, (uint8 *)(&HEntity[0]), HASHHEXLEN);
};
MD5Final(HA2, &Md5Ctx);
BinToHexStr(HA2, HA2Hex);
// calculate response
MD5Init(&Md5Ctx);
MD5Update(&Md5Ctx, (uint8 *)(&HA1[0]), HASHHEXLEN);
MD5Update(&Md5Ctx, (uint8 *)&(":"), 1);
MD5Update(&Md5Ctx, (uint8 *)pszNonce, strlen(pszNonce));
MD5Update(&Md5Ctx, (uint8 *)&(":"), 1);
if (*pszQop)
{
MD5Update(&Md5Ctx, (uint8 *)pszNonceCount, strlen(pszNonceCount));
MD5Update(&Md5Ctx, (uint8 *)&(":"), 1);
MD5Update(&Md5Ctx, (uint8 *)pszCNonce, strlen(pszCNonce));
MD5Update(&Md5Ctx, (uint8 *)&(":"), 1);
MD5Update(&Md5Ctx, (uint8 *)pszQop, strlen(pszQop));
MD5Update(&Md5Ctx, (uint8 *)&(":"), 1);
};
MD5Update(&Md5Ctx, (uint8 *)(&HA2Hex[0]), HASHHEXLEN);
MD5Final(RespHash, &Md5Ctx);
};
/* calculate request-digest/response-digest as per HTTP Digest spec */
void DigestCalcResponse(
IN HASHHEX HA1, /* H(A1) */
IN const char * pszNonce, /* nonce from server */
IN const char * pszNonceCount, /* 8 hex digits */
IN const char * pszCNonce, /* client nonce */
IN const char * pszQop, /* qop-value: "", "auth", "auth-int" */
IN const char * pszMethod, /* method from the request */
IN const char * pszDigestUri, /* requested URL */
IN HASHHEX HEntity, /* H(entity body) if qop="auth-int" */
OUT HASHHEX Response /* request-digest or response-digest */
)
{
HASH RespHash;
DigestCalcResponseHash(HA1, pszNonce, pszNonceCount, pszCNonce, pszQop, pszMethod, pszDigestUri, HEntity, RespHash);
BinToHexStr(RespHash, Response);
};