I need to learn the length of Der structure. It's used as a header for the cipher text file. My cipher writes the DER encoded data and the ciphertext ...

I am new to ASN.1 and DER. I have a naive question about parsing a certificate stored in DER format. How do I tell the difference between a SET (0x31 ...

Does ASN.1 schema support some form of well-defined set of backward/forward-compatible changes? I worked with protobuf and it allows changing schema ...

I have test keys generated like here: vapid_private.pem: vapid_public.pem: vapid_private.pem: vapid_public.pem: Then I have converter c ...

I have ASN.1 schema: And data: What is the best way to convert ANS1 data to DER format and vice versa? ...

I have the crt file and I need to convert it to pem by code in C#, how can I do that? command in openssl: ...

I am trying to DER encode REAL data in binary 2 base form using C++. I calculate the mantissa and exponent with the following algorithm. sample data ...

I am trying to encode the below ASN.1 grammar in DER format. In the sample data, I have 2 PrintableStrings "be" and "pai" I tried the encoding as ...

My question is basically as follows: How to generate two cases of 2048 bit RSA key so that their unsigned big endian modulus requires prefix with 0x0 ...

Getting an error error parsing CSR: ToCertificateRequest: nil DER when decoding PEM The same CSR works when using the gcp console Environment deta ...

I have an integration where I validate a JSON created by another service. They provide a public endpoint to fetch the public certificates to validate ...

I have Golang structure: Then I asn1.Marshal it: When I look at the ASN.1 structure of "dogAsn" (using dumpasn1 Linux utility)I see: I wish N ...

I would like to convert signature in DER-encoded format (which I get from google KMS service) to IEEE 1363 format using C# (in order to validate the s ...

I must be using the wrong query because I cannot find how to do in Powershell what I do with a simple: I guess Powershell provides native commands ...

I have to represent (ASN.1/DER SEQUENCE) pseudocode: Where INTEGER should be a PUBLIC KEY In terms of Golang struct I have so far pseudocode: B ...

I have been trying to decode the octet string as per steps mentioned in https://developer.apple.com/documentation/devicecheck/validating_apps_that_con ...

I have a base64-encoded public key in DER format. In Python, how can I convert it into a COSE key? Here is my failed attempt: ...

I need to check if a file is pkcs#8 DER format in Java when uploading the file, I think maybe PKCS8EncodedKeySpec and getFormat() can be used. All ...

The decimal 614995508 (actual serial number)is converted to hexadecimal 24A81634. The above unit8 array is the representation on TLV(tag length val ...

I think I need to decode my .der file to use as a public key, but I can't find a cli command to do this. I'm getting the error <h1>Bad Message ...