Collaborate Disseminate
We use Zulu JDK and want to customize the default enabled EC curves.
Oracle JRE provides this using jdk.tls.namedGroups system property in java.security.
https://www.oracle.com/technetwork/java/javase/8u121-relnotes-3315208…. Continue reading How to customize default enabled EC curves or the curves preference in Azul Zulu JDK
Given that secp256k1 is used to underpin the entire Bitcoin network (worth $174B as of today) — it appears to offer demonstrably better security than other EC curves as no one has yet taken the bounty. It also stands to rea… Continue reading secp256k1 GPG key?
How reasonable would it be to speak TLS over the secp256k1 curve? My initial experiments show that OpenSSL supports it (albeit with special flags, see below): Running an OpenSSL client against an OpenSSL server (or some rando… Continue reading Talking TLS with EC cryptography and the secp256k1 curve
We’ve been asked to generate certificate signing request using elliptic curve and we can’t use any third-party library it’s an embedded application with very limited resources).
We are used to generate CSR using RSA, but we… Continue reading CSR signature using elliptic curve
I want to generate an ECC key where the primary key is just for cert and has 3 subkeys for auth, sign, encrypt.
I’ve found 2 methods to generate it. But I want to use unattended key generation via
gpg —-batch —generate-key
Work method… Continue reading GPG unattended ECC key and subkey generation
We all know the usual jokes about the ‘S’ in ‘IoT’ standing for ‘Security’. It’s hardly a secret that security in embedded, networked devices (‘IoT devices’) is all too often a last-minute task that gets left to whichever intern was unfortunate enough to walk first into the office that day. …read more
Continue reading Understanding Elliptic Curve Cryptography And Embedded Security
I need a simple message scheme where a sender can send a private message to a receiver using a public database and without relieving who the receiver. All parties have an Elliptic Curve public and private key pair.
Is there… Continue reading Elliptic Curve searchable encryption for message delivery
Businesses actively embracing artificial intelligence and striving to bring technological advancements into their operations are reaping dividends not seen by companies who fail to properly adapt and adopt. While most business and technology leaders ar… Continue reading Organizations need capabilities and practices to generate value from AI
NIST standardized 5 elliptic curves (P-192, P-224, P-256, P-384, P-521) for prime fields. When I looked into openssl, these curves are named as prime192v1, secp224r1, prime256v1, secp384r1, secp521r1. Is there any reason why … Continue reading NIST Elliptic Curves on prime field in OpenSSL [on hold]
I am trying to convert a raw EC key and EVP_PKEY structure. The process seems straightforward but am running into issues.
Here is the code I am using —
unsigned char tmpPubKey[] = {
0x04, 0xbf, 0x7a, 0x7f, 0xf3, 0x… Continue reading Converting a raw EC public key into EVP_PKEY using openssl