Hi Adam,
> auth.cpp:32: error: expected type-specifier before 'HexEncoder'
CryptoPP::HexEncoder
> byte key [ HMAC<SHA1>::DIGESTSIZE ] =
> {0x0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b}; and changed the string
> to "Hi There", but it said the key was too long.
You have four choices:
1) You can keep guessing
2) You can examine the Crypto++ source code and retrieve the value
2) You can visit a site that discusses SHA1 and read the length of the digest
4) You can try a sample such as below:
int length = HMAC<SHA1>::DIGESTSIZE;
printf("%d", length);
> What other changes would I need to do to use those test cases etc?
Work on the digest size issue first.
Jeff
On Wed, Jun 11, 2008 at 10:11 AM, Adam Harding
<[EMAIL PROTECTED]> wrote:
>
> Got it working now and printing out the result with the printf
> function so really happy with that! Thankyou.
>
> I could not get it working with the String Source bit though. I
> included #include "hex.h but got these errors:
>
> auth.cpp: In function 'int main(int, char**)':
> auth.cpp:32: error: expected type-specifier before 'HexEncoder'
> auth.cpp:32: error: expected `)' before 'HexEncoder'
> auth.cpp:32: error: 'StringSource' was not declared in this scope
>
>
> And lastly just want to just use some of the RFC test cases, so just a
> few question on that and that should be it really!
>
> Here are two test cases:
>
> test_case = 1
> key = 0x0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b
> key_len = 20
> data = "Hi There"
> data_len = 8
> digest = 0xb617318655057264e28bc0b6fb378c8ef146be00
>
> test_case = 2
> key = "Jefe"
> key_len = 4
> data = "what do ya want for nothing?"
> data_len = 28
> digest = 0xeffcdf6ae5eb2fa2d27416d5f184df9c259a7c79
>
>
> So is the "digest =" the result I should also be getting from my mac
> print out if I use the same key and data?
>
> With the first test case I copied in the full key
>
> byte key [ HMAC<SHA1>::DIGESTSIZE ] =
> {0x0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b}; and changed the string
> to "Hi There", but it said the key was too long.
>
> On the 2nd test case I did: byte key [ HMAC<SHA1>::DIGESTSIZE ] =
> {"Jefe"};
> and changed the string "what do ya want for nothing?". It compiled
> and I got a result but it did not match the digest listed on the test
> case.
>
> What other changes would I need to do to use those test cases etc?
>
> Thanks alot.
> Adam.
>
> [SNIP]
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