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I’m working on a project with a client based on mbedtls and a server built with vsftpd.
I had basic RSA authentication working but am now upgrading to using the cipher TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256. And I am struggling to get it … Continue reading wrong curve error during TLS handshake with vsftpd
I would like an example of how to generate and use X448 and ED448 in C# through bouncycastle crypto library (X25519 and ED25519 is already provided in libsodium library).
Is it possible to export and import X448 and ED448 public and privat… Continue reading How to use X448 and ED448 in C#(BouncyCastle)? [migrated]
TL;DR: I’m assuming that if GnuPG made it a default then it should be what we use, but it used "bad" defaults in the past so I’m wondering if there are any tradeoffs to this? More specifically: is ECC 25519 sufficiently adopted … Continue reading GnuPG now uses ECC 25519 as default on new key generation – any compatibility issues to worry about?
The Tricentis, Capgemini and Sogeti report explores current SAP adoption and implementation trends, and organizations’ preparedness to deal with the challenges emerging from the changing SAP landscape. “SAP’s ERP system acts as the backbone of business… Continue reading How prepared are organizations for the challenges of the changing SAP landscape
I am using client-side certificate authentication (mutual authentication) in my IoT prototype. we acquire client side certificates using embedded PKI through a CA.
There are the provisions of acquiring ECC or RSA certificates. I was wonder… Continue reading RSA vs ECC certificate for IoT device client side certificate authentication
I have two systems, one running a C environment on a RTOS and another a python program running on a Pi.
I need to generate an encryption key using ECDH between these two systems for symmetric encryption.
On the C Side, I am using https://g… Continue reading Key generation between Tiny-C-ECDH and cryptography.hazmat.primitives.asymmetric.ec
Background information:
I am not a computer scientist. However, in a research project I am currently building a ESP32-based sensor. Multiple sensors of this type are going to be used by multiple users.
Every time a user wants to utilize a … Continue reading ESP32: Secure WiFi credentials via WebCrypto?
Background information:
I am not a computer scientist. However, in a research project I am currently building a ESP32-based sensor. Multiple sensors of this type are going to be used by multiple users.
Every time a user wants to utilize a … Continue reading ESP32: Secure WiFi credentials via WebCrypto?
I generated my self signed certificate using openssl and I chose ECC keys (prime 256v1) for root certificate but while authenticating with the server i.e. IBM cloud and my device the negotiated cipher suite was TLS-ECDHE-RSA-WITH-AES-128-G… Continue reading What is the relation between cipher suite and certificate? [duplicate]
I’m trying to generate a X509 certificate with an EC public key but an RSA signature. I’m using OpenSSL like this:
openssl genpkey -algorithm EC -out ec256key.pem -pkeyopt ec_paramgen_curve:P-256 -pkeyopt ec_param_enc:named_curve
openssl r… Continue reading How to generate a X509 certificate with an EC public key and RSA signature using OpenSSL?