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I'm using OpenSSL 3.0 EVP_PKEY in C to perform Diffie-Hellman key exchange. I generate Alice's and Bob's key pairs. I extract Bob's public key as a BIGNUM and try to reconstruct an EVP_PKEY for Bob's ...
Progman's user avatar
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I am learning to use the openssl/cryptolib. Am working to build a simple p2p chat room with encryption. My intent is to use a Diffie-Hellman key exchange scheme. As I understand it, it is powered by ...
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I am learning to use the openssl/cryptolib. Am working to build a simple p2p chat room with encryption. My intent is to use a Diffie-Hellman key exchange scheme. As I understand it, it is powered by ...
Progman's user avatar
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I am trying to get Diffie Hellman Key Exchange working between my iOS (swift) app and my ASP.NET 8 Core Web Server but with everything I've tried so far, the shared secrets derived on each platform ...
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Most of the API that EC_KEY* functions like EC_KEY_get0_public_key have been deprecated in OpenSSL 3.0, so as far as I know there's no way but to use the EVP interface. I want to export the public key ...
vibhav950's user avatar
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I'm writing a simple ssh client in C using the OpenSSL library to handle the Diffie-Hellman operations (big numbers, hashing, computing the shared key, server verification, etc.) I'm running a ssh ...
Ruben Boero's user avatar
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EDIT: I realized the EVP_PKEY_print_private function is actually the same as the RFC p, they just have differing endian-ness. I would still appreciate critiques of my code, and pointers to helpful ...
Ruben Boero's user avatar
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I'm Trying to implement a server-client application in C that uses OpenSSL's Diffie-Hellman key exchange for secure communication.However, during compliation, I'm encountering the following error: ...
VIJAY KUMAR's user avatar
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I'm trying to recreate the Bob and Alice Diffie-Hellman Key Exchange, since I'm doing my first steps in cryptography and cyber security. The goal is to implement a non-interactive version of this ...
Rohac's user avatar
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I am trying to delve into some cryptography and am trying to decrypt a base64 encoded encrypted string using js. The actual string has been encrypted using TLS_DHE_WITH_AES_256_CBC_SHA256 cipher. I'm ...
gnarkill78's user avatar
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I'm quite new to cypto and I'm trying to derive DH shared secret between two parties. One part is in OP-TEE (a TA) and other part is a remote server. This is my public and private key values in the TA....
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hope everything is well. I am trying to implement the Diffie_Hellman in Python. I read that for better security, it is recommended that the prime 𝑝 should be at least 2048 bits long, and 𝑔 should ...
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dhparam.par -----BEGIN DH PARAMETERS----- ...== -----END DH PARAMETERS----- Indy OpenSSL: object IdSSLIOHandlerSocketOpenSSL1: TIdSSLIOHandlerSocketOpenSSL Destination = 'smtp.server:587' Host = '...
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https://www.rfc-editor.org/rfc/rfc7748 gives a simple implementation of scalar multiplication on curve25519. They have some Python code and some pseudocode, and I tried my best to connect all of it ...
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Well, I implemented a program to find p and q given N. For p = 11 and q = 7, with a generator of g=2 or g=8 it seems to work pretty well, But when I use a list of prime numbers given on the internet, ...
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