Alternatives
Products that do what How I bypassed Exchange security on Android does
I was messing around with AOSPA, wanted to figure out a way to bypass the encryption requirement to get exchange mails. Initially I thought I would have to modify the Email app or the part where the OS the administrative provisioning. But as it turns out all I had to do was comment out 8 lines of code private int getEncryptionStatus() { /*String status = SystemProperties.get("ro.crypto.state", "unsupported"); if ("encrypted".equalsIgnoreCase(status)) { return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; } else if ("unencrypted".equalsIgnoreCase(status)) { return…
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2013 · streak.com
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Hey HN! I made a service to share passwords easy and secure but never promoted it. It's called instapass.io I noticed that people besides my friends and clients actually started to use, so maybe it will be helpful for you too! You share one-time self-destruct message using one time links and I won't even be able to see what you wrote. How does it work? When you generate a message the client-side makes a random password and use that to encrypt the message. The password is appended as an anchor tag which all modern browsers never send to the server. This way, I don't even know what you shared.…
2019
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Recently I've been playing with an idea of a file server on my Android phone, with a web browser access. I wanted to replace: - AirDroid - sending files to my own PC or laptop. - ShareIt - sending big files over the local network to my family devices. - Dropbox - sharing select files with other people over the Internet. Requirements I had in mind: - end-to-end encryption, no sign ups, no accounts, no passwords - local connection if devices are on the same network - asynchronous access, server should work seamlessly in the background This week I finally managed to stitch the pieces together…
2020
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Hi HN! I'm Louw, founder of the enterprise insurtech scale-up Root[0]. Over the last 8 years, my inbox has been flooded with unsolicited emails, especially since early 2023. Recruitment services, outsourced software development agencies, and a crazy amount of lead generation services (thanks, Apollo!) drowned my inbox. To solve this, I created Unspam. Initially, it was a simple tool for myself and fellow founders to reduce noise. And it worked — about 10% of my emails were swiftly and accurately categorized as unsolicited messages. Given its success, I've decided to package and share Unspam…
2024 · unspam.io
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Hi HN, we have recently completed a research project on how to encrypt emails with post-quantum secure algorithms as well as Forward Secrecy. We'd love to hear your feedback and discuss technical issues. The paper can be found here: https://eprint.iacr.org/2021/875
2021
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2021 · github.com
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Hi All! I wanted to show you guys EmailUSD, an app I’ve been working on for some time. It lets you send and receive TRON USDT using just email addresses simplifying onboarding and making it super easy to use + send and receive. I think for a lot of non crypto folks crypto is this scary new thing because the onboarding and usage experience is really novel. Upon introduction you have to write down your 12 words and we put scary messages everywhere about it. And then when you want to send and receive you have to transmit this complex combination of numbers and letters to someone and get it…
2024 · emailusd.net
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Hey HN, I co-created a simple iOS/Android app designed to help you securely gather important information in the form of notes, screenshots, and photos (e.g., life insurance, pension funds, bank accounts, information about your crypto - not necessarily leaving your passphrases here, but mentioning where you've hidden them - why not?) that significant others will need when you pass away. The app automatically passes this info on to them when it detects you’re gone (i.e., you stop responding to app notifications and - if configured - it’s confirmed by your Trusted Friends). It's secure…
2024 · legacyapp.rip
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I've created an educational app to help people learn about how RSA cryptography works. Right now it's iPhone only (though the iPhone version will run on iPads), and it requires iOS 16. Any feedback, positive or negative, would be greatly appreciated. I'm happy to answer any questions if you comment here or email me at [email protected] Link: https://apps.apple.com/us/app/learn-rsa-cryptography/id16714... Thanks!
2023 · apps.apple.com
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Hi HN, I'm excited to share a project I've been working on: UnwrapEmail(https://unwrap.email), an API designed to detect and verify disposable or temporary email addresses. Features: - Detect disposable email addresses - Extract labels from email addresses (e.g., Gmail) - Normalize addresses by removing labels or special characters (e.g., Gmail) - Validate MX records of domains - Check whether it’s safe to send to a given email to reduce bounces and maintain sender reputation Why I Built This: As the owner of an AI wrapper app, I've seen decent traffic thanks to SEO efforts + ads,…
2024 · unwrap.email
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While playing with agents I realised it might be quite handy if they could get access to OTP codes. And while at it, why not give them ability to send the SMS as well. Twillio is expensive and annoying to set up for my taste. I vibe coded simple Android app that can read/send SMS and simple relay server that acts as MCP for agents. Works surprisingly well and my old android phone from a drawer is doing something useful again. Feel free to use it if you find it useful. I put it just to a $5 vps. If it's crashed, you should be able to spin up your own instance on your own VPS just in a…
Jun 2026 · simlink.snaz.cz
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I kept reaching for Hashids/Sqids to keep sequential IDs out of URLs, but they don't use a real key — the alphabet is shuffled by a salt, and the Sqids FAQ says outright "there is no encryption of any kind." arxid is a keyed reversible permutation instead: a balanced Feistel network with an ARX (add-rotate-xor) round function over a 40-bit domain, mapping to a 7-char base62 code. Feed it an integer, get an unpredictable code back; same key reverses it. Runs ~16x faster than a structurally identical Feistel using HMAC-SHA256, because the round function is integer ops instead of a hash…
Aug 2026 · github.com
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Hey HN, A long time ago, due to the lack of viable solutions with E2EE and offline-first syncing, I decided to dedicate my time to making one (which has its own story: https://yaad.one/blog/yaad-story). In the course of ~3 years, I developed a knowledge management app with these primary features: - Primitives: Notes, Tasks, Contacts - Grouping with "Boxes" - Offline-first - Multiplatform; currently available for Android, Windows (x64), macOS, and Linux (ARM). - Fully end-to-end encrypted (AES-256-GCM) - 13 Languages, 8 calendar systems - Light & dark mode Last night, I…
2024 · yaad.one
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