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- What are the differences between . pem, . cer, and . der?
233 pem, cer and der are all file extensions for files that may contain a X 509 v3 certificate The der extension DER is the method of encoding the data that makes up the certificate DER itself could represent any kind of data, but usually it describes an encoded certificate or a CMS container
- openssl der files importing into java keystore - Stack Overflow
I created a keypair with openssl and want them to import into the java-keystore: 1) openssl genpkey -algorithm RSA -pkeyopt rsa_keygen_bits:2048 -out my_privatekey pem 2) openssl rsa -pubout -outf
- ssl - How to convert a DER file to a PEM file? - Stack Overflow
Unfortunately there are various kinds how keys can be stored - DER vs PEM is not the only variation but there are also different ways to have a key in DER etc
- Encoding of implicit and explicit tags in ASN. 1 - Stack Overflow
This is also not specific to BER DER, it's a feature of ASN 1 Some encoding rules (BER, DER, and OER to a limited extent) use the tags in the encodings, while other encoding rules (PER, JER) don't include the tags in the encodings Still, the tags exist independently of the encoding rules being used
- x509 - Can I view a raw DER binary file? - Stack Overflow
But when I convert it into a DER format with this openssl x509 -in cert pem -out cert der -outform DER I get a DER file and when I view it in a text editor I don't get the binary view Is there a way to see the binary view of DER? Thank you in advance, Dubbed_Kiwi
- How do I decode a DER encoded string in Java? - Stack Overflow
19 I'm trying to read a custom extension from a digital certificate I know the value is a GeneralString encoded in DER Is there an easy way to correctly decode it and get a Java String? I tried the following, but 's' includes some of the encoding metadata as junk characters at the start of the string
- Identifying whether a certificate is der encoded or base 64 encoded
2 Informational since this got a search hit - All X 509 certs pretty much use Distinguished Encoding Rules (DER) as the defacto encoding standard to store certificate data in Abstract Syntax Notation One (ASN 1) Base64 is a form of binary-to-text encoding (usually in ASCII text) This makes it "transmission" friendly
- Do I need to convert . CER to . CRT for Apache SSL certificates? If so . . .
CER and CRT extensions mean nothing Different PKI vendors use different extensions for the same thing If the file is binary, then its probably ASN 1 DER encoded If the file is human readable with -----BEGIN CERTIFICATE-----, then its PEM encoded What do you have (DER or PEM), and what do you need (DER or PEM)?
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