ASN.1 as used by Internet PKIX X.509 uses [1] a form known as DER (Distinguished Encoding Rules) which provide a canonical way encoding any particular value suc

ASN.1 as used by Internet PKIX X.509 uses [1] a form known as DER (Distinguished Encoding Rules) which provide a canonical way encoding any particular value such that any particular value can take only one specific form. [1] https://tools.ietf.org/html/rfc5280#section-4.1 https://tools.ietf.org/html/rfc5280#section-4.1