Jannik Arndt JannikArndt

Introduction
Standards
Common combinations
Conversion
Verification/Inspection
Tips for recognising

Introduction

It happens that there are many standards for storing cryptography materials (key, certificate, ...) and it isn't always obvious to know which standard is used by just looking at file name extension or file content. There are bunch of questions on stackoverflow asking about how to convert from PEM to PKCS#8 or PKCS#12, while many tried to answer the questions, those answers may not help because the correct answer depends on the content inside the PEM file. That is, a PEM file can contain many different things, such as an X509 certificate, a PKCS#1 or PKCS#8 private key. The worst-case scenario is that someone just store a non-PEM content in "something.pem" file.

Applicable for:

IntelliJ IDEA CE 2019.1 (2018.* – ?)
macOS Mojave
may also work for other IDEA/macOS versions

Steps to fix:

Go to directory ~/Library/Preferences/IdeaIC${IDEA_VERSION}/
- for IntelliJ IDEA CE 2019.1: ~/Library/Preferences/IdeaIC2019.1/.
There're two files in this directory:

./settingsRepository/repository/scala.xml;

To add Settings.bundle in Xcode. Command N and in Resource, choose Settings Bundle .
Open Root.plist in source code, paste the code below to replace it,

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>PreferenceSpecifiers</key>

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

	var str = "2018/12/06 12:28 \\ - Ourdoor Run: Making a habbit.fgworkout"

	extension String {
	func sanitized() -> String {
	// see for ressoning on charachrer sets https://superuser.com/a/358861
	let invalidCharacters = CharacterSet(charactersIn: "\\/:*?\"<>\|")
	.union(.newlines)
	.union(.illegalCharacters)
	.union(.controlCharacters)

	i386 : iPhone Simulator
	x86_64 : iPhone Simulator
	arm64 : iPhone Simulator
	iPhone1,1 : iPhone
	iPhone1,2 : iPhone 3G
	iPhone2,1 : iPhone 3GS
	iPhone3,1 : iPhone 4
	iPhone3,2 : iPhone 4 GSM Rev A
	iPhone3,3 : iPhone 4 CDMA
	iPhone4,1 : iPhone 4S

	On a mac, `brew install awscli gnu-sed` before.

	streamname=staging;aws kinesis describe-stream --stream-name $streamname --output text \| grep SHARDS \| awk '{print $2}' \| while read shard; do aws kinesis get-shard-iterator --stream-name $streamname --shard-id $shard --shard-iterator-type LATEST --output text \| while read iterator; do while output=`aws kinesis get-records --shard-iterator $iterator --output text`; do iterator=`echo "$output" \| head -n1`; echo "$output" \| gsed 1d \| grep RECORDS \| while read record; do echo $record \| awk '{print $2}' \| base64 -D; done; done; done; done