2011/7/6 ZhouTony <redhat-1...@hotmail.com> > Hi all, > > I am new to this mail list. Have some questions about the API: > DES_ede3_cbc_encrypt() > > void DES_ede3_cbc_encrypt(const unsigned char *input, > unsigned char *output, long length, DES_key_schedule *ks1, > DES_key_schedule *ks2, DES_key_schedule *ks3, DES_cblock *ivec, > int enc); > > 1. For the input chars parameter, does the input chars have to terminate > with '\0'? > Not required, as the length parameter will determine the length of input
> 2. How to determine the output length? I guess strlen() is not correct > because the encrypted output may have '\0' in the middle. > Will be similar to the input length. > 3. I looked at the destest.c code in the openssl source package. It seems > the output length for encrypt is determined by (inputlen + 7)/8*8. If this > is the case, how to determine the output length for decrypt? > > Best Regards, > Tony > -- Prashant Batra Follow the dreams!!
