kɹɪptˈɑːɡɹəfi wʌz ɹuːtˈiːnli jˈuːzd æɾ ˈɛsdˈɑːk tə dɪvˈɛləp sˈɛvɹəl pɹˈɑːdʌkts, bɹˈɔːdli ˈeɪmd æt ðə ɹᵻlˈaɪəbəl ænd vˈɛɹɪfˌaɪəbəl tɹænsmˈɪʃən ʌv dˈeɪɾə ænd mˈɛsɪdʒᵻz, sˈɛntɚd ɚɹˈaʊnd ðɪ aɪdˈiə əvən "ʌnˈɔltɚɹəbəl, ɛŋkɹˈɪptᵻd ˈɔːdɪt lˈɔɡ sˈɪstəm".
Cryptography was routinely used at S-doc to develop several products, broadly aimed at the reliable and verifiable transmission of data and messages, centered around the idea of an "unalterable, encrypted audit log system".