In addition, I initiated the HMAC-SHA1 process using the following code
which produced the same output listed in my previous post. I hope this
helps.
const byte pbData [] = "The quick brown fox jumps over the lazy dog";
const byte key [] = "key";
byte pbOutputBuffer[CryptoPP::SHA1::DIGESTSIZE];
CryptoPP::HMAC<CryptoPP::SHA1>(key, 3).CalculateDigest(pbOutputBuffer,
pbData, 43);
Correct Output:
HMAC_SHA1("key", "The quick brown fox jumps over the lazy dog") =
0xde7c9b85b8b78aa6bc8a7a36f70a90701c9db4d9
The procedure above produced:
0xde7c9b85b8b78aa6bc8a7a36f7a90701c9db4d9
The output is off by one digit. The version of the library I am using is
5.6.1.
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