RSA Experimenter vs DoctorHashes

This app is intended as a tool for understanding a method of encrypting messages known as Public Key Cryptography (RSA). Invented in the 1970's this method still (in 2023) underlies much of the secure electronic transfer of information including communication with a bank (either online or from ATM machines), ordering goods online, transfering medical records and much more. The app is NOT designed for actually sending secure messages; the version of the method implemented here is intensionally a 'toy' version which is more easily understood than the full version. You will see how messages are encoded and decoded and their authenticity verified by using the app to exchange messages with colleagues and friends. The extensive help pages explain most of the mathematics behind this method. It involves concepts often presented to 2nd or 3rd year university students but is accessible to smart and curious middle-school students; the original version of this app was in fact written to accompany a series of sessions of the author with the seventh-grade math class of one of his grandchildren.

DoctorHashes - Ultimate Cryptographic Arsenal Transform your device into a powerful cryptographic workstation with DoctorHashes. Whether you're a security professional, developer, or crypto enthusiast, this comprehensive toolkit provides essential cryptographic operations at your fingertips. Free Usage: You can perform up to 20 operations for free. After reaching this limit, you can continue using all features by upgrading to a Premium Membership. Choose from monthly, yearly, or lifetime plans — all include unlimited operations with no future price increases. Premium Members Enjoy: Unlimited access to all 400+ cryptographic operations Continuous updates with new features and tools Early access to upcoming functionalities Secure, offline performance KEY FEATURES: Multiple Hash Algorithms (MD5, SHA-1, SHA-256, SHA-512, and more) Base64 Encoding/Decoding Hex Operations Advanced Cryptographic Tools Lightning-fast processing Clean, intuitive interface Secure, offline operations Perfect for: Security auditing Password verification Data integrity checking Development and testing Educational purposes Cryptographic research No internet required — all operations are performed locally for maximum security and privacy. Download now and unleash the power of cryptography! SUBSCRIPTION INFORMATION DoctorHashes offers three subscription options: • Monthly Subscription: $4.99/month • Yearly Subscription: $29.99/year • Lifetime Access: $59.99 one-time payment Free users can perform up to 20 operations. Premium subscribers get unlimited access to all features. Your subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Payment will be charged to your iTunes Account at confirmation of purchase. You can manage or cancel your subscription anytime through your iTunes Account settings after purchase. Privacy Policy: https://dbeyzade.github.io/doctorhashes-support/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/