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Releases: kryptohash/cgminer-khc

cgminer for Kryptohash Coin v3.7.8c

12 Jul 14:21
@kryptohash kryptohash
v3.7.8c
b140902
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cgminer for Kryptohash Coin v3.7.8c Latest
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Changes since v3.7.8

Updated CURL DLL to v7.30 and OpenSSL DLLs to 1.0.1p to address FREAK and Logjam vulnerabilities. The cgminer.exe remains unchanged.

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cgminer for Kryptohash Coin v3.7.8

26 Apr 23:41
@kryptohash kryptohash
v3.7.8
b140902
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cgminer for Kryptohash Coin v3.7.8

This version replaces the current version 3.7.7.

Here is the list of changes/enhancements:

  • Updated DLLs to the latest available versions.
  • Added the "--secure" option to enhance security(*).

(*)The Secure mode allows cgminer-khc to use HTTPS protocol for RPC calls but, unlike other miner software, cgminer-khc connects only to Wallets and Pools that present a "trusted" SSL Certificate.
Why is this important? Because not checking for trusted SSL Certificates opens the door to Man-In-The-Middle attacks, where an adversary (a.k.a. Hacker) could steal your credentials and even your coins.

How to enable Secure mode for Solo mining:

Note: This should only be used if cgminer-khc runs on a different computer than the Wallet.

  1. Download OpenSSL for Windows ( https://www.openssl.org/related/binaries.html )

  2. Use openSSL command lines below to create a Self-Signed SSL Certificate for the Computer running the Wallet.

openssl genrsa -out server.pem 2048
openssl req -new -x509 -nodes -sha256 -days 3650 -key server.pem > server.cert

  1. Copy the server.pem and server.cert to your kryptohash/region0 folder

  2. Edit the kryptohash.conf file and add/uncomment these lines:

server=1
rpcport=38912
rpcuser=
rpcpassword=

  1. Enable SSL

rpcssl=1
rpcsslciphers=TLSv1.2+HIGH:!SSLv2:!aNULL:!eNULL:!AH:!3DES:@strength
rpcsslcertificatechainfile=server.cert
rpcsslprivatekeyfile=server.pem

  1. Specify the IP address of the Computer where cgminer-khc will connect from.

rpcallowip=192.168.1.1

  1. Ensure the line below is commented:

#rpcconnect=127.0.0.1

  1. Copy the server.cert file to the computer where cgminer-khc will run. Place the cert file inside the cgminer-khc-3.7.8 folder

  2. Rename the server.cert file to cacert.pem or, append the content of server.cert to the end of the existing cacert.pem file.

  3. Execute cgminer-khc using:

    cgminer --kryptohash --secure -o https://:38912 -u -p --shaders --shaders-mul <usually 8>

How to enable Secure mode for Pools:

  1. Ensure your Pool supports HTTPS for RPC calls.

  2. Download the latest cacert.pem file available at the CURL website ( http://curl.haxx.se/docs/caextract.html ) and place the file inside the cgminer-khc-3.7.8 folder.

  3. If your Pool doesn't have a SSL Certificate signed by a public CA, ask the Pool to provide you with a Self-Signed SSL Certificate in PEM format.

  4. Edit the cacert.pem file and append the Self-Signed SSL Certificate provided by your the Pool at the end of cacert.pem.

  5. Execute cgminer-khc using

    cgminer --kryptohash --secure -o https://: -u -p --shaders --shaders-mul <usually 8>

Assets 4
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