Secret Message Exchange vs Archer's Toolbox

Have you ever experienced that the messages between you and your family, friends (partners) on SNS somehow are seen by someone else? If you have such a concern, you can solve the problem if you can exchange messages in a way that only you and your partners can understand. By using this application, a sender can embed a message in an image (photo) and posts it on an SNS, then the receiver can restore and read the embedded message from the image. Since the sender and receiver of the message use the same "key image" to embed (encrypt) and restore (decrypt) the message into/from the key image, the sender and receiver need to register the same image as the key image in advance in this application. One sample key image is registered in this application. So, it is recommended that you try it once by using the sample key image and experience what it feels like. [Note] - Only landscape image with aspect ratio 4: 3 can be used. - The key image to be registered for each of the sender and receiver must have the same image size and file size. If you do not have the exact same key, you can not decrypt the message correctly. - In the case of the image sent by e-mail, the image size may be reduced due to limitation of the e-mail attachment file size, so please pay attention to the file size when you use email. Overview of the operation follows; == Create an encrypted message == 1. Launch this application and tap "Encryption" button. 2. Select a key image. If you use key images other than samples, In-app Purchase is required. 3. Type your message. 4. Tap "Encrypt" button. 5. The message is embedded in the key image and saved in the Photo Library, so post it using SNS applications or email. == Decrypt an encrypted message == 1. Save the image received by SNS applications or email to Photo Library. At this time, it needs to be saved with the image size and file size as it is sent. 2. Open this application and tap "Decryption" button. 3. Select an image from the Photo Library, and select the corresponding key image as well. 4. Tap "Decrypt" button to decrypt and display a message. [Note] - The displayed message is an image. If you want to save the message, please take a screenshot and save it as an image. - Depending on the key image used, noise (black dots) may be displayed on the message screen. We are happy if you are interested in this application. Thanks!

Archer's Toolbox is a pocket toolbox for programmers. Paste anything, and it tells you what it is and every useful way to read it. INSPECT Paste or type any value and Inspect recognizes it on sight: • Error codes: HTTP statuses, NSURLError codes like -1009, POSIX errno (Apple and Linux), Keychain OSStatus codes, Cocoa errors, process exit codes and iOS crash codes like 0x8badf00d, each explained in plain words • Unix timestamps in seconds or milliseconds, and ISO 8601 dates • JSON Web Tokens, with claims and whether they've expired • JSON, with the exact line and column of any mistake • Base64, URL encoding, HTML entities, Unicode escapes and hex bytes, decoded • URLs, broken into host, path and every query parameter • UUIDs, including when a version 7 UUID was made • Cron schedules, in plain English with their next run times • IPv4 and IPv6 addresses and subnets • Numbers in any base, floating-point values and colors INSPECT FROM ANY APP Select text in Safari, Mail, Notes or any other app, or share a link, and choose Inspect in the share sheet. The answer appears right there. 19 TOOLS Numbers: base converter with bits you can tap to flip, bitwise operations and shifts, IEEE 754 floating point (see what 0.1 really is), data sizes in KB and KiB, color codes with WCAG contrast. Text & data: encode and decode, MD5 to SHA-512 and HMAC hashes for text and files with checksum verification, JSON formatter and minifier, regex tester with groups and replacement, JWT decoder, text inspector with case styles and code points. Debugging & systems: error code lookup, Unix time, cron, subnets, chmod permissions. Generate: UUID v4 and v7, passwords and random keys, QR codes for text and Wi-Fi. SHORTCUTS AND SPOTLIGHT Generate a UUID or password, convert a timestamp or number, or inspect text from Spotlight, Siri or the Shortcuts app. PRIVATE BY DESIGN Everything runs on your device. No account, no tracking, no ads, and the app never connects to the internet. Free, with no in-app purchases.