www.pudn.com > TomCrypt.rar > goozo_crypt.cpp

//--------------------------------------------------------------------------- 
 
 
 
 
#include "goozo_crypt.h" 
 
 
//--------------------------------------------------------------------------- 
ecc_key ltc_ecc_mykey; 
 
void ltc_eax_encrypt(const struct ltc_cipher_descriptor *cipher, 
              AnsiString key,AnsiString nonce, 
              const unsigned char *pt, 
              unsigned char *ct, unsigned length){ 
    int cn=register_cipher(cipher); 
    if(cn==-1)throw Exception("wrong cipher"); 
 
    unsigned char tkey[32]={0}; 
    unsigned char tnonce[32]={0}; 
    memcpy(tkey,key.c_str(),key.Length()); 
    memcpy(tnonce,nonce.c_str(),nonce.Length()); 
 
    eax_state eax; 
    eax_init( &eax,cn,tkey,32,tnonce,32,NULL,0); 
    eax_encrypt(&eax, pt, ct, length); 
} 
//--------------------------------------------------------------------------- 
void ltc_eax_decrypt(const struct ltc_cipher_descriptor *cipher, 
              AnsiString key,AnsiString nonce, 
              const unsigned char *ct, 
              unsigned char *pt, unsigned length){ 
    int cn=register_cipher(cipher); 
    if(cn==-1)throw Exception("wrong cipher"); 
 
    unsigned char tkey[32]={0}; 
    unsigned char tnonce[32]={0}; 
    memcpy(tkey,key.c_str(),key.Length()); 
    memcpy(tnonce,nonce.c_str(),nonce.Length()); 
 
    eax_state eax; 
    eax_init( &eax,cn,tkey,32,tnonce,32,NULL,0); 
    eax_decrypt(&eax, ct, pt, length); 
} 
//--------------------------------------------------------------------------- 
AnsiString ltc_hash_mem(const struct ltc_hash_descriptor *hash, 
              const unsigned char *in,  unsigned long length){ 
    int hn=register_hash(hash); 
    if(hn==-1)throw Exception("wrong hash"); 
 
    unsigned char out[64]; 
    unsigned long outlen; 
    hash_memory(hn,in,length,out,&outlen); 
 
    AnsiString returnstr; 
    for(int i=0;i