/******************************************************************************
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* FILE: MD5Calc.h
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* Description:
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* MD5 arithmetic calculation interface class.
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*
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* Modified Code History
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* Mark Date By Modification Reason
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*******************************************************************************
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* 01 2007-6-6 Song-Xiaowen Initial creation.
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******************************************************************************/
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#if !defined(__MD5_CALC_H__)
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#define __MD5_CALC_H__
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#include "TypeDef.h"
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//#include "osipparser2/osip_md5.h"
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#include "osip_md5.h"
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#include "str.h"
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using namespace std;
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#define DIGEST_MD5HEX_LEN 32
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#define RANDOM_TAG_LEN 16
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#define DIGEST_NONCE_LEN 64
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#define MD5_SESSION_KEY_LEN 64
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#define MD5_RESPONSE_LEN 64
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#define DIGEST_HASH_LEN 16
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#define SIP_PRIVATE_KEY "private key"
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#define SIP_REGISTER_NONCE_EXPIRE 6 //6 minute
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#define SIP_MAX_CHALLENGES 3 //if failed challenges > 3,means failure
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#define SIP_MD5_URL_MAXLEN 128
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/**
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* Definition of the Authorization header.
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* @struct osip_authorization
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*/
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struct rtsp_authorization_t
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{
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char auth_type[32]; /**< Authentication Type (Basic or Digest) */
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char username[64]; /**< login */
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char realm[128]; /**< realm (as a quoted-string) */
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char nonce[64]; /**< nonce */
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char uri[128]; /**< uri */
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char response[64]; /**< response */
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char digest[64]; /**< digest */
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char algorithm[64]; /**< algorithm (optionnal) */
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char cnonce[64]; /**< cnonce (optionnal) */
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char opaque[64]; /**< opaque (optionnal) */
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char message_qop[64]; /**< message_qop (optionnal) */
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char nonce_count[64]; /**< nonce_count (optionnal) */
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char auth_param[64]; /**< other parameters (optionnal) */
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};
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/* Class for MD5 calculation */
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class CMD5Calc
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{
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public:
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CMD5Calc();
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~CMD5Calc();
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inline bool MD5Encode(const char *pSource, char target[DIGEST_MD5HEX_LEN+1]);
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void SIPGenerateNonce(char *pTarget, UINT32 timestamp, const char *pETag);
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inline bool SIPCheckNonceExpire(const char *pszNonce, const char *pETag);
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void DigestCalcHA1
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(
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char *pszAlg,
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char *pszUserName,
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char *pszRealm,
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char *pszPassword,
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char *pszNonce,
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char *pszCNonce,
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char SessionKey[DIGEST_MD5HEX_LEN+1]
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);
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void DigestCalcResponse
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(
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char HA1[DIGEST_MD5HEX_LEN+1], /* H(A1) */
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char *pszNonce, /* nonce from server */
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char *pszNonceCount, /* 8 hex digits */
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char *pszCNonce, /* client nonce */
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char *pszQop, /* qop-value: "", "auth", "auth-int" */
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char *pszMethod, /* method from the request */
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char *pszDigestUri, /* requested URL */
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char HEntity[DIGEST_MD5HEX_LEN+1], /* H(entity body) if qop="auth-int" */
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char Response[DIGEST_MD5HEX_LEN+1] /* request-digest or response-digest */
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);
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//Random character string operations
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inline UINT32 GenerateRandom(UINT32 i1, UINT32 i2);
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char *GenerateRandomTag(char *pStr);
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char *unquote(char* s);
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};
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/* Reference md5 functions in libosip2 */
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typedef osip_MD5_CTX MD5_CTX;
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#define MD5Init osip_MD5Init
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#define MD5Update osip_MD5Update
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#define MD5Final osip_MD5Final
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#endif //#if !defined(__MD5_CALC_H__)
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