encode.h

windows的加密api源码

#include "algid.h"

#ifndef _ENCODE_H_
#define	_ENCODE_H_

#ifdef __cplusplus
extern "C" {
#endif

/* tag definitions for ASN.1 encoding decoding */
#define	INTEGER_TAG			0x02
#define	CHAR_STRING_TAG		0x16
#define	OCTET_STRING_TAG	0x04
#define	BIT_STRING_TAG		0x03
#define	UTCTIME_TAG			0x17
#define	SEQUENCE_TAG		0x36
#define	SET_OF_TAG			0x11
#define	OBJECT_ID_TAG		0x06

/* definitions of maximum lengths needed for the ASN.1 encoded
   form of some of the common fields in a certificate */
#define	MAXVALIDITYLEN		0x24
#define	MAXKEYINFOLEN		0x50
#define MAXALGIDLEN			0x0A
#define	MAXOBJIDLEN			0x0A
#define MAXNAMEVALUELEN		0x40
#define	UTCTIMELEN			0x0F
#define	MAXPUBKEYDATALEN	0x30
#define	VERSIONLEN			0x03
#define MAXENCODEDSIGLEN	0x30
#define	MAXHEADERLEN		0x08
#define	MINHEADERLEN		0x03
#define	MAXTIMELEN			0x20

/* definitions for scrubbing memory */
#define	ALLBITSOFF			0x00
#define	ALLBITSON			0xFF

/* prototypes for the functions in encode.c */
long EncodeLength (BYTE *pbEncoded, DWORD dwLen, BOOL Writeflag);
long EncodeAlgid (BYTE *pbEncoded, ALG_ID Algid, BOOL Writeflag);
long EncodeInteger (BYTE *pbEncoded, CONST BYTE *pbInt, DWORD dwLen, BOOL Writeflag);
long EncodeString (BYTE *pbEncoded, CONST BYTE *pbStr, DWORD dwLen, BOOL Writeflag);
long EncodeOctetString (BYTE *pbEncoded, CONST BYTE *pbStr, DWORD dwLen, BOOL Writeflag);
long EncodeBitString (BYTE *pbEncoded, CONST BYTE *pbStr, DWORD dwLen, BOOL Writeflag);
long EncodeUTCTime (BYTE *pbEncoded, time_t Time, BOOL Writeflag);
long EncodeHeader (BYTE *pbEncoded, DWORD dwLen, BOOL Writeflag);
long EncodeSetOfHeader (BYTE *pbEncoded, DWORD dwLen, BOOL Writeflag);
long EncodeName (BYTE *pbEncoded, CONST BYTE *pbName, DWORD dwLen, BOOL Writeflag);
long DecodeLength (DWORD *pdwLen, CONST BYTE *pbEncoded);
long DecodeAlgid (ALG_ID *pAlgid, CONST BYTE *pbEncoded, BOOL Writeflag);
long DecodeHeader (DWORD *pdwLen, CONST BYTE *pbEncoded);
long DecodeSetOfHeader (DWORD *pdwLen, CONST BYTE *pbEncoded);
long DecodeInteger (BYTE *pbInt, DWORD *pdwLen, CONST BYTE *pbEncoded, BOOL Writeflag);
long DecodeString (BYTE *pbStr, DWORD *pdwLen, CONST BYTE *pbEncoded, BOOL Writeflag);
long DecodeOctetString (BYTE *pbStr, DWORD *pdwLen, CONST BYTE *pbEncoded, BOOL Writeflag);
long DecodeBitString (BYTE *pbStr, DWORD *pdwLen, CONST BYTE *pbEncoded, BOOL Writeflag);
long DecodeUTCTime (time_t *pTime, CONST BYTE *pbEncoded, BOOL Writeflag);
long DecodeName (BYTE *pbName, DWORD *pdwLen, CONST BYTE *pbEncoded, BOOL Writeflag);

#ifdef __cplusplus
}
#endif

#endif	// _ENCODE_H_