// proper form is sample[1] = DATA:CSPHandle, sample[2] = DATA:CSSM_KEY,
// sample[3] = auxiliary data (not changed)
if (sample.length() != 4
// proper form is sample[1] = DATA:CSPHandle, sample[2] = DATA:CSSM_KEY,
// sample[3] = auxiliary data (not changed)
if (sample.length() != 4