DER encoded certificate

File Format
Name	DER encoded certificate
Ontology	Electronic File Formats Security DER encoded certificate ; ; ;
Extension(s)	.der, .crt, .cer
MIME Type(s)	application/x-x509-user-cert, application/x-x509-ca-cert

Latest revision as of 21:43, 28 December 2023

DER encoded certificate is a file format for storing an X.509 certificate.

It is one type of DER file. DER is a subset of BER format. BER is a serialization format for the abstract ASN.1 format.

To display the contents of a DER encoded certificate using OpenSSL:

 openssl x509 -noout -text -inform der -in example.der

To convert from DER encoded certificate format to PEM encoded certificate format:

 openssl x509 -in example.der -inform der -outform pem -out example.pem

@@ Line 7: / Line 7: @@
 '''DER encoded certificate''' is a file format for storing an [[X.509 certificate]].
-It is one type of [[Distinguished Encoding Rules|DER]] file. DER is a subset of [[Basic Encoding Rules|BER]] format. BER is a serialization format for the abstract [[ASN.1]] format.
+It is one type of [[DER]] file. DER is a subset of [[Basic Encoding Rules|BER]] format. BER is a serialization format for the abstract [[ASN.1]] format.
+See also [[PEM encoded certificate]].
 == Examples ==
@@ Line 17: / Line 19: @@
 == Software ==
-* [http://www.openssl.org/ OpenSSL]
+* [[OpenSSL]]
 == Sample files ==
 * [http://apps.cybersource.com/library/downloads/CyberSource_SJC_US.crt CyberSource certificate]
+* {{DexvertSamples|other/derCertificate}}
 == Links ==
 * [http://www.cybersource.com/developers/test_and_manage/managing/update_keys_and_certificates/ Info on certificate files at CyberSource site]
+* [[Wikipedia:X.690#DER_encoding|Wikipedia: DER encoding]]