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What are the differences between . pem, . cer, and . der? 232 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
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
OpenSsl cannot read DER formatted certificate - Stack Overflow Update I have based my solution on this and this answers Background I am trying to read a DER formatted certificate file and attempt to verify it My cert is in DER format I have confirmed t
ssl - Difference between pem, crt, key files - Stack Overflow I'm having problems understanding the difference between files produced by openssl and how to detect them For example I'm trying to generate Self-signed cert with private key and generate JKS file
mbedtls DER formatted certificate chain verification I am trying to verify a certificate chain using mbedTLS version 2 16 2 The certificate chain in DER format as individual files The PKI is simple as three levels (1) Root_CA (2) Intermediate_CA (3)
ssl : Unable to load certificate - Stack Overflow The problem is not PEM vs DER but that you are using a certificate request in a place where a certificate is expected This is clearly shown by the PEM header -----BEGIN CERTIFICATE REQUEST----- To show the content of a certificate request use openssl req -in CSR csr -text To show the content of a certificate use openssl x509 -in CERT crt -text
How to verify DER certificate with openssl? - Stack Overflow openssl x509 -inform der -in \leaf cert cer -outform pem Converts the DER certificate to PEM format with the output to the stdout openssl verify -CAfile CA ca crt Verifies the PEM certificate from stdin And you combine the two with the pipe '|' command which pipes the stdout from the first command to the stdin for the second command