投稿時間:2022-05-08 14:19:56 RSSフィード2022-05-08 14:00 分まとめ(25件)

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AWS	lambdaタグが付けられた新着投稿 - Qiita	Error: Failed to parse template: 'utf-8' codec can't decode byte 0x83 in position XXX: invalid start byteの対処法	https://qiita.com/memomaruRey/items/05976b3d97877e74eaec	ErrorFailedtoparsetemplatexutfxcodeccanxtdecodebytexinpositionXXXinvalidstartbyteの対処法はじめにsamlocalinvoke時に題記のエラーが発生したので、対処法を調べてまとめます。	2022-05-08 13:41:05
python	Pythonタグが付けられた新着投稿 - Qiita	県から８地方区分に変換する実装例	https://qiita.com/horiponzu/items/aae0cd8f8f3743dc6c35	自分	2022-05-08 13:50:15
python	Pythonタグが付けられた新着投稿 - Qiita	【xarray】データの時間座標の変換（resample）	https://qiita.com/YukTam/items/8572c68e8577f2ac009f	lexar	2022-05-08 13:30:56
js	JavaScriptタグが付けられた新着投稿 - Qiita	Reactでindex.js:1 Warning: Received true for a non-boolean attribute outline.が出た時の対処法	https://qiita.com/memomaruRey/items/50255c6c1fc149f899b8	ibuteoutlineifyouwanttowr	2022-05-08 13:59:18
js	JavaScriptタグが付けられた新着投稿 - Qiita	ReactでQRコードリーダーを実装する	https://qiita.com/faunsu/items/2f13f1378b4f36b040b6	react	2022-05-08 13:48:59
js	JavaScriptタグが付けられた新着投稿 - Qiita	JupyterLab(JavaScriptノートブック)にて「Kernel Restarting」が頻発する際の対処法	https://qiita.com/M_S/items/440e94cac028e2f12d07	javascript	2022-05-08 13:45:23
Linux	Ubuntuタグが付けられた新着投稿 - Qiita	UEFIブートのx86_64 Ubuntu AMIを作成する	https://qiita.com/lighthawk/items/908311898b2201d6f106	xubuntuami	2022-05-08 13:49:39
AWS	AWSタグが付けられた新着投稿 - Qiita	【AWS】オートメーションの失敗を通知する仕組みを作ってみた	https://qiita.com/santasan1224/items/2ca3a0b57ba38f9515df	作ってみた	2022-05-08 13:54:03
AWS	AWSタグが付けられた新着投稿 - Qiita	CloudWatch Logsで複数の条件でログを検索する	https://qiita.com/memomaruRey/items/0f837599d522678b7786	cloudwatchlogs	2022-05-08 13:53:08
AWS	AWSタグが付けられた新着投稿 - Qiita	UEFIブートのx86_64 Ubuntu AMIを作成する	https://qiita.com/lighthawk/items/908311898b2201d6f106	xubuntuami	2022-05-08 13:49:39
AWS	AWSタグが付けられた新着投稿 - Qiita	Error: Failed to parse template: 'utf-8' codec can't decode byte 0x83 in position XXX: invalid start byteの対処法	https://qiita.com/memomaruRey/items/05976b3d97877e74eaec	ErrorFailedtoparsetemplatexutfxcodeccanxtdecodebytexinpositionXXXinvalidstartbyteの対処法はじめにsamlocalinvoke時に題記のエラーが発生したので、対処法を調べてまとめます。	2022-05-08 13:41:05
Docker	dockerタグが付けられた新着投稿 - Qiita	Docker環境でAPI Blueprint+aglioを使ってAPI仕様書を作成する	https://qiita.com/hinako_n/items/83f9d34cf31d2979dd2c	aglio	2022-05-08 13:13:45
Git	Gitタグが付けられた新着投稿 - Qiita	gitで直前のコミットを上書きしたい	https://qiita.com/memomaruRey/items/fc263258c6b80c4e4354	gitcommitamend	2022-05-08 13:55:28
Git	Gitタグが付けられた新着投稿 - Qiita	gitで複数コミットをまとめる際のコマンドまとめ	https://qiita.com/memomaruRey/items/43a59b63a249d764edf9	elinedatestdbtesteaetest	2022-05-08 13:35:58
Ruby	Railsタグが付けられた新着投稿 - Qiita	nginx.confの中身を理解したい初学者	https://qiita.com/na0kiB/items/a8b081fe30ff1c6d99a9	nginx	2022-05-08 13:12:23
海外TECH	DEV Community	Types of Steganography methods that are used for hiding confidential data.	https://dev.to/prasan26/types-of-steganography-methods-that-are-used-for-hiding-confidential-data-1ebj	Types of Steganography methods that are used for hiding confidential data Are the images really safe Steganography according to Wikipedia is the practice of concealing a message within another message or a physical object In computing electronic contexts a computer file message image or video is hidden within another file message image or video The word steganography comes from Greek steganographia which combines the words steganós meaning “covered or concealed and graphia meaning “writing Steganography TypesThe type of cover data is also the type of steganography Today steganography is examined as text image audio video and protocol steganography Text SteganographyConfidential data is hidden in text files Different methods can be used to hide the data in the text file These methods include •Format Based Method Confidential data is hidden inside cover data with techniques such as adding text spaces deliberate typing errors and sizes of writing types This method is easily detectable by computer software Hence it is a less preferred method •Random and Statistical Method Hidden data is stored inside character strings Places where confidential information is hidden must be reported to the extractor •Linguistics Method Hidden data is stored in the syntactic structure Image steganographyis the method of hiding data inside an image file as cover data In image steganography pixel densities are used to hide the data The most commonly used image formats as cover data are BMP PNG JPEG TIFF and GIF Kamble et al Image steganography uses the weaknesses of the human visual system HVS Most commonly used methods in image steganography •Least Significant Bit LSB •Spread spectrum•F•Palette embedding•Wavelet transform Data maskingAudio SteganographyThis method hides data inside sound files This method uses audio file formats such as WAV AU and MP as cover data Audio steganography has different methods These methods include •Least Significant Bit LSB •Parity coding•Phase coding•Spread spectrum•Echo hiding Video SteganographyIt is the technique of hiding any file or data inside a digital video format file Video steganography uses H Mp MPEG and AVI video formats as cover data So almost all of the steganography techniques that can be applied to image and audio files can be used for video files Video steganography provides less perceptibility because the video is a flow of images and sounds at a high frame rate Due to the large size of video files the payload capacities of video steganography is quite large Network or Protocol SteganographyIt aims to hide confidential data inside a cover object protocol such as TCP UDP ICM and IP There are hidden channels in the OSI layer networking model where steganography can be used Steganography DefenseDetecting and managing malicious use of steganography already happening on a network is very difficult According to Barwise “If an adversary is to able to penetrate a network successfully and unsuspectingly install malware onto a system that uses digital steganography to hide its presence then the network and all associated data contained therein should be considered entirely compromised Theoretical Framework This is a good description of how difficult it is to detect and respond to the use of hidden data techniques against your information resources Antivirus and IPS are not likely to detect malicious content in images or audio It is difficult to detect network based steganography with monitoring solutions Consequently the best approach to steganography defense is the implementation of known ways to prevent the infiltration of malware and unwanted utility software Prevention For prevention the first step is identifying ways steganographic tools and infected carriers can find their way onto your network The next step is to block them In addition to implementing antivirus IPS and firewalls according to current best practices •Remove local admin access from all day to day accounts•Only allow installation of whitelisted applications•Strictly enforce least privilege and need to know•Segment the network and prevent access to database servers to anything but application servers and strictly manage traffic entering and leaving the segments by using explicit allows•Ensure all applications that access database servers have strong input validation•Prohibit or strictly manage script and macro execution•Consider blocking or alerting on suspicious movement of certain file types including stripping them from all email messages Image files Audio files Video files Larger than regular Office applications normal for your organization •Only download and install applications or other media from the internet that includes a valid hash value you can check•Block general use of USB storage•Train users not to download images songs videos and other media from the internet especially from social networking sites How an organization approaches these controls depends on its unique operating environment and management s willingness to deal with the potential employee frustration It is all about risk and management s appetite for risk Deep Secure developed a novel approach to prevention Their content threat removal tools assume all content is compromised Original content is not delivered to the recipient Instead obvious business functional information is stripped and placed into a new document file This reconstructed document file is delivered and the original is dropped Monitoring and DetectionAs always assume malicious actors find ways to circumvent your prevention controls Some ways to proceed are •Monitor network behavior for anomalous packet traffic such as that described in the section Attack Command and Control•Monitor user behavior for unusual access and large data transfers•Scan all computers especially user devices for steganography tools•Periodically use forensics tools to test all or a meaningful sample of potential carriers found on the network to determine if they might contain hidden informationCONCLUSION Steganography is used for good and malicious purposes from securing confidential and sensitive data to stealing or backdooring the network Connect with me LinkedIn Twitter Join The Community LinkedIn Discord Support my HackClub	2022-05-08 04:14:05
海外科学	NYT > Science	Quotation of the Day: Trump Ally in Nebraska Opens Feuds in G.O.P.	https://www.nytimes.com/2022/05/08/science/quotation-of-the-day-trump-ally-in-nebraska-opens-feuds-in-gop.html	feuds	2022-05-08 04:32:01
ニュース	BBC News - Home	Hong Kong's John Lee: Ex-security chief becomes new leader	https://www.bbc.co.uk/news/world-asia-china-61345463?at_medium=RSS&at_campaign=KARANGA	china	2022-05-08 04:45:49
ニュース	BBC News - Home	The Papers: Sinn Fein's 'seismic' win and 'leaked' Beergate memo	https://www.bbc.co.uk/news/blogs-the-papers-61367343?at_medium=RSS&at_campaign=KARANGA	front	2022-05-08 04:28:59
ニュース	BBC News - Home	Ukraine war: 'If this is true, then I am also a Nazi'	https://www.bbc.co.uk/news/world-europe-61361827?at_medium=RSS&at_campaign=KARANGA	nazis	2022-05-08 04:47:05
北海道	北海道新聞	大リーグ、筒香が１号２ラン　鈴木は初三塁打、大谷１安打	https://www.hokkaido-np.co.jp/article/678137/	大リーグ	2022-05-08 13:27:00
北海道	北海道新聞	春の高校野球支部予選・５月８日の試合結果	https://www.hokkaido-np.co.jp/article/678096/	春の高校野球	2022-05-08 13:30:39
北海道	北海道新聞	暴力団組長宅に車突っ込む　大阪・豊中、けが人なし	https://www.hokkaido-np.co.jp/article/678136/	大阪府豊中市	2022-05-08 13:15:57
北海道	北海道新聞	専門業者が水中カメラで船体調査　知床・観光船事故	https://www.hokkaido-np.co.jp/article/678134/	水中カメラ	2022-05-08 13:02:57
ビジネス	東洋経済オンライン	鏡の前で｢私が好き｣と言える人･言えない人の差 肯定感を高めるおまじない｢アファメーション｣ | リーダーシップ・教養・資格・スキル | 東洋経済オンライン	https://toyokeizai.net/articles/-/582272?utm_source=rss&utm_medium=http&utm_campaign=link_back	東洋経済オンライン	2022-05-08 13:30:00