Collaborate Disseminate
Let’s assume that authentication with certificates has been well performed, next step is to generate short-term private&public ECC keys for ECDH shared key computation.
Alice: Generates keyA with RNG and calculates pubkeyA, shares pub… Continue reading Why do you need random number for ECDH shared key computation
The Subject Public Key Info field can have a value like ECDSA_P256 or ECDH_P256 when ECC is used.
Why is it not sufficient to specify "ECC_P256"? In other words, why is it not enough to specify just the curve parameters (like pri… Continue reading Why does the Public Key Info field in an X509 certificate for EC indicate the algorithm
I was talking to my friend who is building an AI startup, and his premise was Deep Learning, can somehow be used, to predict, when fed the correct data (input) and run for multiple (n; n = large) iterations, can predict break encryption, w… Continue reading Can Deep Learning predict Encryption Keys in Elliptic Curve Diffie Hellman Ephemeral
I’m setting up a client TLS CA for authenticating requests over the internet to an AWS API Gateway endpoint. It supports TLS 1.2 but not TLS 1.3, at least from what I can tell.
Is there a minimum version of TLS 1.2 for support of Ed25519 c… Continue reading What is the minimum TLS version for support of Ed25519 Keys?
When running a server, especially one with mission-critical applications, it’s common practice to use error-correcting code (ECC) memory. As the name suggests, it uses an error-correcting algorithm to continually check …read more Continue reading Error-Correcting RAM on the Desktop
Our product stores voucher data in a database.
These voucher data can be retrieved with our app to display a voucher that can be used for payments.
Obviously, these voucher data are extremely sensitive because who ever gets access to them … Continue reading Asymmetric crypto algorithm for encryption with hardware token
I came across a PGP public key that seems invalid. The key is a secp256k1 public key that supported by GPG. In fact, GPG allows importing that key even if it has an invalid secp256k1 public key inside.
Running –list-packets on the key sho… Continue reading GPG allows importing an invalid secp256k1 public key
I have this issue moving some code from python to java.
The following public key:
MDkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDIgAC2X07fCab+nIPAWBb5eRlhdOfR0Bkrhx7TgM3cGbR31g=
can be succesfully read from this python code:
key = bytearray.fromhex(
… Continue reading Read EC Public Key, works in python, error in java [migrated]
I’m doing a spin-off request from this: EC Key request
As my problem is a bit different but similar.
I have the following private key (in this format, not a file):
MHcCAQEEID0VR/I814rQUqWIYPEhno+3kexN/jN2n1ub+mJ6ZWyhoAoGCCqGSM49AwEHoUQDQgA… Continue reading Parsing and loading EC Private key, curve secp256r1 [migrated]
When I run the command btc_address_dump "0x0000000000000000000000000000000000000000000000000000000000000001" the outputed public key is 0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1… Continue reading How to generate public key from private key in python3 with out importing any module [migrated]