Thanks for sharing cppi812.
Though I am using it on a linux, but your example shows this is feasible. I
will try out and share back.
Regards,
Rajat B.
On Wednesday, February 20, 2013 8:28:45 AM UTC+5:30, cppi812 wrote:
> I am new to CryptoPP. I am also new to cyptography and it sounds like you
> may be too. I am using crypto++ to encrypt files on windows 7 systems. I
> use AES in GCM mode. The functions cypography algorithms require a key,
> that key can be randomly generated or you can provide it. I am using
> crypto++ PKCS5_PBKDF1<SHA512> algorithm to generate my key from a password.
> Here is the key code i am using. Please ignore the function name and the
> fact I return it and set it to the provided param. The guts are what you
> may want.
>
> std::string CipherFunc::PBKDF1_DeriveKey(byte* _outkey, size_t
> _outkeylength,const char* _passphrase, size_t _passphraselength,const byte
> * _salt, size_t _saltlen, size_t _iterations){
>
> PKCS5_PBKDF1<SHA512>fn;
> size_t maxsize = fn.MaxDerivedKeyLength();
> try{
>
> fn.DeriveKey(_outkey,_outkeylength,0,(byte*)_passphrase,_passphraselength,_salt,_saltlen,_iterations,0);
> }catch(Exception e){
> //do something
> }
> std::string s((char*)_outkey);
> return s;
> }
>
> If I am wrong in my use of this, I would please like someone else to
> comment on this to help me out too.
>
> Thanks
>
>
> On Tuesday, February 19, 2013 2:56:11 AM UTC-5, Rajat Budhiraja wrote:
>>
>> Hello Everybody
>>
>> I am new to CryptoPP and intend to use the AES algorithm from it. I have
>> downloaded and installed the Version 5.6.1 on a Linux machine. I found a
>> sample AES program on Internet and got it to compile and execute
>> successfully. But, this program is randomly generating keys; then
>> encrypting and decrypting the data.
>>
>> My question is how to use specific values (e.g. "abcd" or "4567") as keys
>> or use these to generate keys and encrypt the plain-text data (and, not use
>> randomly generated keys), because I need to decrypt the data on the other
>> end as well (and for that I need the key on the other end as well).
>>
>> Does Cryptopp AES supports this?
>>
>> Any help on this will be appreciated.
>> I can share the sample program if needed.
>>
>> Thanks
>>
>
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