Libcurve - An encryption and authentication library for ZeroMQ applications

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Curve implements the CurveZMQ elliptic curve security mechanism, for use in ZeroMQ applications. This library is primarily a reference implementation for the CurveZMQ specification but may also be used for end-to-end security. CurveZMQ creates encrypted sessions ("connections") between two peers using short term keys that it securely exchanges using long term keys. When the session is over, both sides discard their short term keys, rendering the encrypted data unreadable, even if the long term keys are captured. It is not designed for long term encryption of data.

zeromq zeromq-security cryptography security elliptic-curve

blockstack-keychains-js - A keychain library for managing private + public keys

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A library for effective private and public keychain management.This library provides a powerful key derivation interface that is based on the creation of private and public keychains.

key keys keychain keychains hd hd-key hd-keys hierarchical deterministic hierarchical-deterministic hierarchical-key hierarchical-keychain hierarchical-keychains deterministic-key deterministic-keychain deterministic-keychains hierarchical-deterministic-key hierarchical-deterministic-keychain hierarchical-deterministic-keychains bitcoin bitcoin-key bitcoin-keys bitcoin-address bitcoin-addresses bip32 bip-32 bip-32-keys bip32-keys bip44 bip-44 bip-44-keys bip44-keys ecdsa elliptic elliptic-curve ecdsa-key ecdsa-keys ecdsa-keychain private public private-key private-keys public-key public-keys lockchain keylocker keychain-manager crypto cryptography bitcoin-crypto bitcoin-cryptography

elliptic-curve-js - Library for operations on secp256k1 keys.

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Library for operations on secp256k1 keys.

secp256k1 key keys public private public-key public-keys private-key private-keys elliptic elliptic-curve bitcoin

key-encoder-js - Library for encoding and decoding ecdsa private keys and converting between formats

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To get started, first define your key encoder and raw private/public keys.As shown above, there is built in support for SECP256k1 (the curve Bitcoin uses), but you can pass in your own curve parameters for any curve you'd like.

elliptic elliptic-curve asn pem der ecdsa crypto cryptography private key encode decode secp256k1 bitcoin curve private-key private-keys public-key public-keys keys ecdsa-key ecdsa-keys key-converter convert-keys key-format key-formatter format-keys key-encoder encode-keys

curvedns - A DNSCurve Forwarding Name Server

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CurveDNS is the first publicly released forwarding implementation that implements the DNSCurve protocol. Brings us to a new question: what is DNSCurve? Parts of a master thesis have been written to answer this question, but of course there is a short answer. The protocol's official website gives a pretty good impression in only one sentence: 'DNSCurve uses high-speed high-security elliptic-curve cryptography to drastically improve every dimension of DNS security'.What is so special about this implementation is the fact that any authoritative DNS name server can act as a DNSCurve capable one, without changing anything on your current DNS environment. The only thing a DNS data manager (that is probably you) has to do is to install CurveDNS on a machine, generate a keypair, and update NS type records that were pointing towards your authoritative name server and let them point to this machine running CurveDNS. Indeed, it is that easy to become fully protected against almost any of the currently known DNS flaws, such as active and passive cache poisoning.

dnscurve dns-security elliptic-curve dns