C + + interface of the openssl+ algorithm in its own package

Digest

#ifndef _digestcalc_h#define _digestcalc_h/**********************************/* Use example: (SM3 algorithm)/*digestcalc hashcl;/* Hashcl. Init (DIGESTCALC::ALG_ID::SM3);/*hashcl. Update (IN,INL);/* vector<unsigned int> out (hashcl. Gethashlength ());/*hashcl. Final (Out.data ());/**********************************/class _digestcalc;class Digestcalc{public:class alg_id{ Friend class digestcalc;explicit alg_id (int i): _id (i) {}int _id;public:static const alg_id sm3;static const ALG_ID Sha;sta  Tic Const alg_id sha1;static const ALG_ID sha224;static const ALG_ID sha256;static const ALG_ID sha384;static const ALG_ID sha512;static Const ALG_ID md2;static const ALG_ID md4;static const ALG_ID md5;static const ALG_ID rc2;static const ALG_I D rc4;static Const alg_id rc5;static const ALG_ID dsa;static const ALG_ID mdc2;static const ALG_ID ECDSA;}; Public:digestcalc (); ~digestcalc ();//@param ALG Algorithm ID//@return error returned false, Truebool Init (alg_id ID) successfully returned;//@param in Input buffer address//@param INL input data length//@return error returned false, successfully returned Truebool UPDATE (const unsigned char *in,unsigned int inl);//increases the computed data. @param out output buffer address//@return Error returns false, Truebool Final (unsigned char *out) is returned successfully, and the hash result is computed and stored in the out-pointing buffer. int gethashlength () const;//Call this function to get the hash length before calling final, ensuring that the hash buffer is long enough. Private:_digestcalc *_impl;digestcalc (const DIGESTCALC &);D igestcalc &operator= (const DIGESTCALC &);}; #endif

　　

Cipher

#ifndef _ciphercalc_h#define _ciphercalc_h/**********************************/* Use example: (SM4 algorithm CBC mode encryption)/*ciphercalc Cipher;/*outl=0;/*cipher. Init (ciphercalc::alg_id::sm4_cbc,key,iv,ciphercalc::encrypt,ciphercalc::P admode::openssl_padding);/*cipher. Update (IN,INL,OUT,&OUTL);/*cipher. Final (OUT+OUTL,&OUTL);/**********************************/class _ciphercalc;class CipherCalc{public:// Represents a cryptographic operation or decryption operation class Encmode{friend class Ciphercalc;int enc;explicit encmode (int x): Enc (x) {}public:static const Encmode encrypt;//encryption static const Encmode decrypt;//decryption};//indicates how the data is populated class Padmode{friend class Ciphercalc;int padding; explicit Padmode (int x):p Adding (x) {}public:static const padmode no_padding;//The user fills the data themselves, guaranteeing that the data length is an integer multiple of the grouping length, otherwise the operation is faulted. The static const Padmode OPENSSL_PADDING;//OPENSSL Fill algorithm fills the data to an integer multiple of the packet length. If the length of the data itself is an integer multiple of the group//length, a grouping is appended. All byte values that are populated are equal to the length of the appended data. };//indicates which symmetric algorithm class Alg_id{friend class ciphercalc;explicit alg_id (int id) is used: _id (ID) {}int _id;public:static const ALG_ID sm4_ecb;//State SM4 ECB mode static const ALG_ID sm4_cbc;//State SM4 CBC mode static const ALG_ID des_cfb;static const ALG_ID des_cfb1;static const ALG_ID des_cfb8;static const A lg_id des_ede_cfb;static const ALG_ID des_ede3_cfb;static const ALG_ID des_ede3_cfb1;static const ALG_ID DES_EDE3_CFB8; static const alg_id Des_ofb;static const ALG_ID des_ede_ofb;static const ALG_ID des_ede3_ofb;static const ALG_ID DESX_CBC;  static const ALG_ID des_cbc;//single-des CBC mode static const ALG_ID DES_EDE_CBC; 3DES CBC mode static const ALG_ID des_ede3_cbc;static const ALG_ID des_ecb;//single-des ECB mode static const ALG_ID Des_ede;static Co     NST alg_id Des_ede3; 3DES ECB mode static const ALG_ID rc4;static const ALG_ID rc4_40;static const ALG_ID rc4_hmac_md5;static const ALG_ID idea_e cb;static Const ALG_ID idea_cfb;static const ALG_ID idea_ofb;static const ALG_ID idea_cbc;static const ALG_ID Seed_ecb;sta Tic Const alg_id seed_cfb;static const ALG_ID seed_ofb;static const ALG_ID seed_cbc;static const ALG_ID rc2_ecb;static con St alg_id rc2_cfb;static Const ALG_ID Rc2_ofb;statIC Const ALG_ID rc2_cbc;static const ALG_ID rc2_40_cbc;static const ALG_ID rc2_64_cbc;static const ALG_ID bf_ecb;static Co NST alg_id bf_cfb;static const alg_id bf_ofb;static const ALG_ID bf_cbc;static const ALG_ID cast5_ecb;static const ALG_ID cast5_cfb;static Const ALG_ID cast5_ofb;static const ALG_ID cast5_cbc;static const ALG_ID rc5_32_12_16_ecb;static const A lg_id rc5_32_12_16_cfb;static const ALG_ID rc5_32_12_16_ofb;static const ALG_ID rc5_32_12_16_cbc;static const ALG_ID AES _128_ecb;static Const ALG_ID aes_128_cbc;static const ALG_ID aes_128_cfb;static const ALG_ID aes_128_cfb1;static const AL g_id aes_128_cfb8;static const ALG_ID aes_128_ofb;static const ALG_ID aes_128_ctr;static const ALG_ID aes_128_gcm;static Const ALG_ID aes_128_xts;static const ALG_ID aes_192_ecb;static const ALG_ID aes_192_cbc;static const ALG_ID AES_192_CFB; static const alg_id Aes_192_cfb1;static const ALG_ID aes_192_cfb8;static const ALG_ID aes_192_ofb;static const ALG_ID Aes_ 192_ctr;static Const ALG_ID AEs_192_gcm;static Const ALG_ID aes_256_ecb;static const ALG_ID aes_256_cbc;static const ALG_ID aes_256_cfb;static const AL g_id aes_256_cfb1;static const ALG_ID aes_256_cfb8;static const ALG_ID aes_256_ofb;static const ALG_ID aes_256_ctr; static const alg_id Aes_256_gcm;static const ALG_ID aes_256_xts;static const ALG_ID CAMELLIA_128_ECB; static const ALG_ID CAMELLIA_128_CBC, static const ALG_ID CAMELLIA_128_CFB, static const alg_id camellia_128_cfb1;static const ALG_ID Camelli a_128_cfb8;static const ALG_ID CAMELLIA_128_OFB; static const alg_id CAMELLIA_192_ECB; static const ALG_ID Camellia_192_c BC; static const alg_id CAMELLIA_192_CFB; static const alg_id camellia_192_cfb1;static const ALG_ID Camellia_192_cfb8;sta Tic const alg_id CAMELLIA_192_OFB; static const alg_id CAMELLIA_256_ECB; static const alg_id CAMELLIA_256_CBC; static cons t alg_id camellia_256_cfb; static const alg_id camellia_256_cfb1;static const ALG_ID camellia_256_cfb8;static const ALG_I D CAMELLIA_256_OFB;}; Public:ciphercALC (); ~ciphercalc (void);//@param ALG Algorithm identification//@param key key//@param IV CBC algorithm initial vector, if iv==null, then the IV value is full 0. @param enc encrypt represents cryptographic operations, decrypt means that decryption operations//@param padding data is populated by default for the user to populate, that is, Ciphercalc does not make any corrections to the input data. @return Error returned false, successfully returned Truebool Init (alg_id alg,unsigned char *key,const unsigned char *iv, Encmode enc, padmode padding = padmode::no_padding);//@param in input buffer address//@param INL input data length//@param out output buffer address//@param outl return *outl+ output data length//@return Out Error returned false, successfully returned Truebool Update (const unsigned char *in,int inl,unsigned char *out,int *outl);//@param out output buffer address//@param o UTL return *outl+ output data length//@return error returned false, successfully returned Truebool Final (unsigned char *out,int *outl);p Rivate:_ciphercalc *_impl; Ciphercalc (const CIPHERCALC &); Ciphercalc &operator= (const CIPHERCALC &);}; #endif

　　

C + + interface of the openssl+ algorithm in its own package