T.T.PorninT.T., Deterministic Usage of the Digital Signature Algorithm (DSA) and Elliptic Curve Digital Signature Algorithm (ECDSA), RFC 6979, IETF, sierpień 2013, DOI:10.17487/RFC6979, ISSN2070-1721, OCLC943595667(ang.).
T.T.PorninT.T., Deterministic Usage of the Digital Signature Algorithm (DSA) and Elliptic Curve Digital Signature Algorithm (ECDSA), RFC 6979, IETF, sierpień 2013, DOI:10.17487/RFC6979, ISSN2070-1721, OCLC943595667(ang.).
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T.T.PorninT.T., Deterministic Usage of the Digital Signature Algorithm (DSA) and Elliptic Curve Digital Signature Algorithm (ECDSA), RFC 6979, IETF, sierpień 2013, DOI:10.17487/RFC6979, ISSN2070-1721, OCLC943595667(ang.).