1. https://andrea.corbellini.name/2015/05/17/elliptic-curve-cryptography-a-gentle-introduction
2. https://www.cnblogs.com/Duxue/p/14998555.html

hashcat crack sha256 with rockyou.txt

cat sha256_hash_rockyou.txt 
F09EDCB1FCEFC6DFB23DC3505A882655FF77375ED8AA2D1C13F640FCCC2D0C85
hashcat -m 1400 -a 0 sha256_hash_rockyou.txt ~/rockyou/rockyou.txt
hashcat -m 1400 --show sha256_hash_rockyou.txt
f09edcb1fcefc6dfb23dc3505a882655ff77375ed8aa2d1c13f640fccc2d0c85:paule

hashcat crack brcypt with rockyou.txt

It’s slow, so just crack the 1. 4 letter word 2. 4 litter letter.…

I have begun learning security skills on the TryHackMe website and have completed two rooms. In my opinion, it is the best site for acquiring and practicing security skills so far.

• Nmap Live Host Discovery
• Linux Process Analysis

And several …

SAP AI Core 接入Cursor

估计这是全网第一篇把SAP AI Core 接入Cursor 的教程。

教程很简单，按照下面项目README，跑一个本地AI Core LLM 代理服务器

• https://github.com/pjq/sap-ai-core-llm-proxy

http://127.0.0.1:5000

接着找一台有公网IP的电脑，注册绑定好域名，在Nginx设置好反向代理

比如 https://ai-proxy

然后在Cursor 设置自定义Open AI URL

https://ai-proxy/v1

这个代理服务器是手工搓的，目前支持gpt-4,gpt-4o, Claude 3.5 sonnet 统一了OpenAI API协议，所以可以用到任何兼容OpenAI API 的客户端。

至此，Token自由。

SAP AI Core LLM Proxy 介绍

sap-ai-core-llm-proxy is …

nmap

sudo nmap --script vuln -p443 host
sudo nmap -sV --script=ssl-heartbleed host

msfconsole

msfconsole 
search heartbleed
use auxiliary/scanner/ssl/openssl_heartbleed
options
set RHOSTS xx.xx.xx.xx
set VERBOSE true
exploit
run

iptables

opkg update
opkg install coreutils-nohup bash iptables dnsmasq-full curl ca-certificates ipset ip-full iptables-mod-tproxy iptables-mod-extra libcap libcap-bin ruby ruby-yaml kmod-tun kmod-inet-diag unzip luci-compat luci luci-base

nftables

opkg update
opkg install coreutils-nohup bash dnsmasq-full curl ca-certificates ipset ip-full libcap libcap-bin ruby …

使用Docker来开启xiaogpt, 当前Docker官文Docker源被墙了，所以可以先找一个国内的镜像，比如

• https://dockerproxy.cn

docker pull dockerproxy.cn/yihong0618/xiaogpt

准备好config.yaml文件，然后命令行启动

docker run -v /volume2/hdd_4T/xiaogpt/config:/config yihong0618/xiaogpt --config=/config/myconfig_livingroom.yaml

I am running my NAS at home, and it has the public IP, but the IP will be changed randomly, so I need to bind it to the subdomain in the Cloudflare, so I can visit it even the IP …

Prepare

1. Download llama2 gguf format model
   • https://huggingface.co/TheBloke/Llama-2-7B-GGUF
   • and put it into “./models/llama-2–7b/”

ls -lht models/llama-2-7b
total 7997112
-rw-r--r--@ 1 user  staff   3.8G Jan  4 13:12 llama-2-7b.Q4_K_M.gguf

• 2. Build the llama.cpp

git clone https://github.com/ggerganov/llama.cpp
cd llama.cpp
make -j

• 3. Prepare the

I am start to learn the cryptography, so I will note the Cryptography journey in my blog

Online resources

Some Cryptography online courses

• https://www.pluralsight.com/search?q=Cryptography

Online hack platform

• https://cryptohack.org/courses/

China Cryptography Cipher

SM4, one China Block Cipher

• https://en.wikipedia.org/wiki/SM4_(cipher)

ShāngMì 4 (