pexcn

#!/usr/bin/env python
"""
Patch a recovery image to enable RTC writing

Unfortunately it has not the intended effect (tested from recovery):
~ # /system/xbin/hwclock -w
hwclock: RTC_SET_TIME: Operation not permitted

<3>[   25.821247] spmi_pmic_arb fc4cf000.qcom,spmi: pmic_arb_wait_for_done: transaction denied (0x5)
<3>[   25.821338] qcom,qpnp-rtc qpnp-rtc-ee162000: SPMI write failed

pexcn

#!/bin/bash -xe

# Replace ******** with your token
export SIGN_IN_URL=http://m.client.10010.com/SigninApp/signin/querySigninActivity.htm?token=********
export DAY_SIGN_URL=http://m.client.10010.com/SigninApp/signin/daySign.do
export SCRIPT_PATH=$(dirname $0)

echo "$(date +'%Y-%m-%d %T')" >> $SCRIPT_PATH/log.txt

curl $SIGN_IN_URL \

pexcn

@echo off
rem Batch file that extracts java from installer
rem Original topic on stackoverflow:
rem http://stackoverflow.com/questions/1619662/how-can-i-get-the-latest-jre-jdk-as-a-zip-file-rather-than-exe-or-msi-installe

setlocal
if [%1]==[] goto usage
set fn=%~n1
7z.exe e %1 .rsrc\1033\JAVA_CAB10\111
if errorlevel 1 goto err

pexcn

SDCard Write Speed Test

# 64k
dd if=/dev/zero of=test bs=64k count=1638 && rm -f test
dd if=/dev/zero of=test bs=64k count=1638 conv=fdatasync && rm -f test
dd if=/dev/zero of=test bs=64k count=1638 conv=fsync && rm -f test
dd if=/dev/zero of=test bs=64k count=1638 oflag=dsync && rm -f test
# 1024k
dd if=/dev/zero of=test bs=1024k count=100 && rm -f test

pexcn

https://www.google.com/android/uncertified

# disable root at first.

# backup
adb shell sqlite3 /data/data/com.google.android.gsf/databases/gservices.db \"select * from main where name='android_id'\"
# update
adb shell sqlite3 /data/data/com.google.android.gsf/databases/gservices.db \"update main set value='<my_certified_android_id>' where name='android_id'\"
# check

pexcn

# unpack
bsdcpio -id < ../extra.lzma

# repack
find . | cpio -o --format='newc' --owner root:root | lzma > ../extra.lzma

pexcn

#!/bin/sh -e
#
# Hurricane Electric DDNS script for OpenWrt
#
# crontab: */5 * * * * INTERFACE=pppoe-wan USE_PEERDNS=1 DOMAIN=example.com KEY=password /usr/bin/he-ddns.sh
#
set -o pipefail

INTERFACE="${INTERFACE:-pppoe-wan}"
DOMAIN="${DOMAIN:-example.com}"

pexcn

#!/bin/bash -e

METHOD="$1"

# prepare
docker stop iperf-client ss-client ss-server iperf-server &>/dev/null || true
docker rm iperf-client ss-client ss-server iperf-server &>/dev/null || true

# iperf server
docker run -d --rm --name iperf-server --network host pexcn/docker-images:iperf -s -B 127.0.0.1 -p 10000 >/dev/null

pexcn

现代密码学实践指南[2015年]

标签（空格分隔）： 密码学

---

本文介绍目前现代密码学的最先进技术， 前半部分主要翻译自 《Cryptographic Right Answers》，附上收集的资料，和byron个人的理解。

pexcn

[Solarized Darcula]
text=d2d8d9
cyan(bold)=15968d
text(bold)=d2d8d9
magenta=797fd4
green=629655
green(bold)=629655
background=3d3f41
cyan=15968d
red(bold)=f24840