The unit of encoding and decoding for Distinguished Encoding Rules (DER).
The object identifier assigned to the Distinguished Encoding Rules (DER), per the https://www.itu.int/en/pages/default.aspx, International Telecommunications Union's, http://www.itu.int/rec/T-REC-X.690/en, X.690 - ASN.1 encoding rules
Copyright (C) Jonathan M. Wilbur
Distinguished Encoding Rules (DER) is a standard for encoding ASN.1 data. DER is often used for cryptgraphically-signed data, such as X.509 certificates, because DER's defining feature is that there is only one way to encode each data type, which means that two encodings of the same data could not have different cryptographic signatures. For this reason, DER is generally regarded as the most secure encoding standard for ASN.1. Like Basic Encoding Rules (BER), Canonical Encoding Rules (CER), and Packed Encoding Rules (PER), Distinguished Encoding Rules (DER) is a specification created by the https://www.itu.int/en/pages/default.aspx, International Telecommunications Union, and specified in http://www.itu.int/rec/T-REC-X.690/en, X.690 - ASN.1 encoding rules