That did it... thanks a million Kim :)
----- Original Message -----
From: "Kim Hyung Chan" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, December 08, 2002 2:15 AM
Subject: Re: Errors while dealing with AES
> And, simeple example for AES with Counter mode.
>
> CTR_Mode<AES>::Encryption aes_ctr_enc(s_key, 16, s_iv);
> aes_ctr_enc.ProcessString((unsigned char*)buf, buf_size);
>
> CTR_Mode<AES>::Decryption aes_ctr_dec(s_key, 16, s_iv);
> aes_ctr_dec.ProcessString((unsigned char*)buf, buf_size);
>
> ----- Original Message -----
> From: Anthony Cosgrove
> To: [EMAIL PROTECTED]
> Sent: Sunday, December 08, 2002 3:49 PM
> Subject: Errors while dealing with AES
>
>
> I know I'm not doing something right but I can't seem to find any example
code that will show me how to properly initialize the AES class. Below is a
snippet that I ripped from test.cpp and attempted to mangle it to what I
need to do. Can someone please tell me what I'm missing / doing wrong?
>
> void AES_test(byte *&text, int itsize)
> {
> const byte key[] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x01,
0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef};
> const byte iv[] =
{0x12,0x34,0x56,0x78,0x90,0xab,0xcd,0xef,0x12,0x34,0x56,0x78,0x90,0xab,0xcd,
0xef};
> byte *ciphertext = new byte[itsize];
> CFB_Mode<AES>::Encryption encryption_AES_CBC;
> encryption_AES_CBC.SetKeyWithIV(key, 16, iv);
> encryption_AES_CBC.ProcessString(ciphertext, text, itsize);
> byte *decrypted = new byte[itsize];
> CFB_Mode<AES>::Decryption decryption_AES_CBC;
> decryption_AES_CBC.ProcessString(decrypted, ciphertext, itsize);
> }
>
> I can get the encryption function to work (I think because during debug
VC6 is spitting out my encrypted result) - but if I call the decryption, I
get an unhandled exception 0xc0000005 - In the debugger it points to the
CFB_DecryptionTemplate<BASE>::CombineMessageAndShiftRegister(byte *output,
byte *reg, const byte *message, unsigned int length) function in strciphr.cp
p.
>
> Can someone give me a pointer please? Or at least point me to some example
AES code that someone wrote using crypto++?
>
> Thanks in advance,
>
> Anthony
>
>
