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flowcrypt [2026.01.07 08:10] Steve Isenbergflowcrypt [2026.01.16 13:55] (current) Steve Isenberg
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-This is a work in progress+~~NOCACHE~~ 
 +//<fs x-small>This page last changed ~~LASTMOD~~ Visits: {{counter|today| time| times}} today,  
 +{{counter|yesterday| time| times}} yesterday, and 
 +{{counter|total| time| total times}}.</fs>//  
 + 
 +This is a work in progress, bear with me 
  
  
-====== PGP Encrypted Email on iPad Using Gmail + FlowCrypt ======+====== I. PGP Encrypted Email on iPad Using Gmail + FlowCrypt ======
  
 This guide explains how to add true end-to-end encrypted email (OpenPGP / PGP) to a Gmail account on an iPad using FlowCrypt. This guide explains how to add true end-to-end encrypted email (OpenPGP / PGP) to a Gmail account on an iPad using FlowCrypt.
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 ==== 4. Back Up Your Private Key (CRITICAL) ==== ==== 4. Back Up Your Private Key (CRITICAL) ====
  
-You must back up your private key to avoid permanent data loss.+You must back up your private key to avoid permanent data loss.  \\ //I do this using my free password manager, KeePass. [[security presentation|Learn about KeePass and protecting your passwords]]//
  
 Recommended backup locations: Recommended backup locations:
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 ===== Gmail App Behavior ===== ===== Gmail App Behavior =====
-Encrypted messages cannot be read in the Gmail app +  * Encrypted messages cannot be read in the Gmail app 
- Gmail shows a placeholder such as: +  Gmail shows a placeholder such as: “This message is encrypted” 
-“This message is encrypted” +  You must open FlowCrypt to read or reply securely
- You must open FlowCrypt to read or reply securely +
 This is expected and normal. This is expected and normal.
  
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-If you want, I can also: 
- • Optimize this for your existing DokuWiki structure 
- • Add screenshots placeholders 
- • Create a short checklist version 
- • Add a key recovery & rotation section 
  
-Just tell me what you’like next.+====== II. Viewing and Sharing Your Public Key (FlowCrypt on iPad) ====== 
 + 
 +Your public key is what others need in order to send you PGP-encrypted email. 
 +It is safe to share publicly and does not expose your private key. 
 + 
 +⸻ 
 + 
 +===== Method 1: View & Share from FlowCrypt Settings (Recommended) ===== 
 + 
 +==== Steps ==== 
 + • Open FlowCrypt on your iPad 
 + • Tap the ☰ menu (top left) 
 + • Go to Settings 
 + • Tap Encryption Keys 
 + • Select your active key 
 + • Tap Public Key 
 + 
 +You can now: 
 + • View the full public key text 
 + • Copy it to the clipboard 
 + • Share it via email or other apps 
 + 
 +⸻ 
 + 
 +===== Method 2: Email Your Public Key Directly ===== 
 + 
 +FlowCrypt can automatically send your public key to a contact. 
 + 
 +==== Steps ==== 
 + • Open FlowCrypt 
 + • Tap Compose 
 + • Enter the recipients email address 
 + • If they do not already have your key, FlowCrypt will prompt: 
 + • Send your public key 
 + • Confirm and send 
 + 
 +This sends a normal (unencrypted) email with your public key attached. 
 + 
 +⸻ 
 + 
 +===== Method 3: Attach Your Public Key Manually ===== 
 + 
 +If you want to include your public key with other information: 
 + 
 +==== Steps ==== 
 + • Open FlowCrypt 
 + • Go to Settings → Encryption Keys 
 + • Select your key 
 + • Tap Export Public Key 
 + • Attach the exported file to an email or message 
 + 
 +⸻ 
 + 
 +===== What a Public Key Looks Like ===== 
 + 
 +A public key is plain text and begins and ends like this: 
 + 
 +<code> 
 +-----BEGIN PGP PUBLIC KEY BLOCK----- 
 +... 
 +-----END PGP PUBLIC KEY BLOCK----- 
 +</code> 
 + 
 + 
 +The … is hundreds of apparently random characters.  Anyone can have this (public) key. Only you have the private key (and don’t give the private key to anyone). 
 + 
 +⸻ 
 + 
 +===== Optional: Publish Your Public Key ===== 
 + 
 +You may publish your public key so others can find it automatically. 
 + 
 +Options include: 
 + • PGP public key servers 
 + • Personal website 
 + • Wiki page 
 + • Email signature (link or attachment) 
 + 
 +FlowCrypt can automatically discover keys published on common key servers. 
 + 
 +⸻ 
 + 
 +===== Security Notes ===== 
 +  * Sharing your public key is safe 
 +  * Never share your private key 
 +  * Protect your private key with: 
 +    * Strong passphrase 
 +    * Secure backup (password manager, encrypted vault) 
 + 
 +⸻ 
 + 
 +===== Quick Troubleshooting ===== 
 +  * Can’t see the key? 
 +    * Make sure a key exists under Settings → Encryption Keys 
 +  * Multiple keys listed? 
 +    * Use the one marked Active 
 +  * Recipient can’t encrypt to you? 
 +    * Confirm they imported your public key correctly 
 + 
 +⸻ 
 +====== III. Sending Encrypted Email with a Shared Password (FlowCrypt) ====== 
 + 
 +FlowCrypt primarily uses public-key (PGP) encryption, but it also supports password-encrypted messages for recipients who do not use PGP. 
 + 
 +This method uses a shared secret (password) instead of a public key. 
 + 
 +⸻ 
 + 
 +===== How Password-Encrypted Messages Work ===== 
 +  * You choose a shared password 
 +  * The message is encrypted using that password 
 +  * The recipient receives: An email with a secure FlowCrypt link 
 +  * They enter the password in their browser to read the message 
 +  * No PGP software is required for the recipient 
 + 
 +⸻ 
 + 
 +===== When to Use This Method ===== 
 +  * Recipient does not use PGP 
 +  * One-time or infrequent secure messages 
 +  * You can safely share a password out-of-band 
 +    * Phone call 
 +    * Text message 
 +    * In-person 
 + 
 +⸻ 
 + 
 +===== Limitations Compared to PGP ===== 
 + • Not true end-to-end PGP 
 + • Relies on FlowCrypt’s secure message portal 
 + • Less suitable for long-term or repeated communication 
 + • Password must be shared securely ahead of time 
 + 
 +⸻ 
 + 
 +===== Sending a Password-Encrypted Message ===== 
 + 
 +==== Steps ==== 
 +  - Open FlowCrypt 
 +  - Tap Compose 
 +  - Enter recipient email address 
 +  - If no public key is found, FlowCrypt will prompt: Send a password-encrypted message 
 +  - Choose a strong password 
 +  - Send the message 
 +  - Share the password with the recipient via a different channel 
 + 
 +⸻ 
 + 
 +===== Recipient Experience ===== 
 + • Recipient receives an email with a link 
 + • Clicks the link 
 + • Enters the shared password 
 + • Reads the message in a secure web page 
 + • Can reply securely using the same password 
 + 
 +⸻ 
 + 
 +===== Security Best Practices ===== 
 + • Use a long, unique password 
 + • Never send the password in the same email 
 + • Avoid reusing passwords 
 + • Set expiration dates if offered 
 + 
 +⸻ 
 + 
 +===== Comparison: Public Key vs Shared Password ===== 
 + 
 +^ Feature ^ PGP (Public Key) ^ Shared Password ^ 
 +| Encryption type | True end-to-end | Password-based | 
 +| Key exchange | Public key | Shared secret | 
 +| Recipient setup | Required | None | 
 +| Best for | Ongoing secure email | One-off messages | 
 +| Reliance on FlowCrypt | Minimal | Required | 
 + 
 +⸻ 
 + 
 +===== Important Notes ===== 
 + • Subject lines are not encrypted 
 + • Gmail cannot index encrypted content 
 + • Password-encrypted messages may expire depending on settings 
 + 
 +⸻ 
 + 
 +===== Recommendation ===== 
 + • Use PGP public keys for regular, privacy-critical communication 
 + • Use password-encrypted messages only when PGP is not feasible 
 + 
 +⸻ 
 + 
 +====== IV. Why FlowCrypt on iPad and iPhone  Does Not Offer “Shared Key” Messages ====== 
 + 
 +When composing an email in FlowCrypt on iPad, you may only see: 
 + • Send unencrypted 
 + • Cancel 
 + 
 +and no option to send a password-encrypted (shared secret) message. 
 + 
 +This is by design. 
 + 
 +⸻ 
 + 
 +===== Platform Limitation (Important) ===== 
 + 
 +FlowCrypt features differ by platform: 
 + 
 +^ Platform ^ PGP (Public Key) ^ Password / Shared Key ^ 
 +| Chrome extension (desktop) | Yes | Yes | 
 +| Web app (desktop) | Yes | Yes | 
 +| Android | Yes | Limited | 
 +| iOS (iPad / iPhone) | Yes | No | 
 + 
 +👉 iOS FlowCrypt only supports PGP public-key encryption. 
 + 
 +Password-encrypted messages are not implemented in the iOS app. 
 + 
 +⸻ 
 + 
 +===== Why FlowCrypt Disabled Shared-Key on iOS ===== 
 + 
 +  * FlowCrypt has stated (and demonstrated by behavior) that: Password-encrypted messages rely on a secure web portal 
 +  * This requires browser-based flows that are: 
 +    * Less reliable on iOS 
 +    * Harder to secure consistently 
 +  * FlowCrypt’s security model on iOS is: 
 +    * PGP only 
 +    * Or plaintext 
 + 
 +So if no recipient public key is found, on iOS (iPad, iPhone) FlowCrypt will only offer: 
 +  * Send unencrypted 
 +  * Cancel 
 + 
 +⸻ 
 + 
 +===== What This Means Practically ===== 
 + 
 +On an iPad and iPhone: 
 + • You cannot send encrypted email to non-PGP users using FlowCrypt 
 + • There is no hidden setting to enable shared passwords 
 + • Reinstalling or changing settings will not help 
 + 
 +This is a hard limitation, not a configuration issue. 
 + 
 +⸻ 
 + 
 +===== Your Available Options ===== 
 + 
 +==== Option 1: Use PGP Only (Best Security) ==== 
 +  - Ask recipient to install: 
 +    * FlowCrypt 
 +    * Thunderbird 
 +    * Proton Mail (PGP mode) 
 +  - Exchange public keys with recipient 
 +  - Communicate securely end-to-end 
 + 
 +⸻ 
 + 
 +==== Option 2: Use Desktop FlowCrypt for Shared-Key Messages ==== 
 + 
 +If you occasionally need password-encrypted messages: 
 + • Use FlowCrypt Chrome extension on a desktop 
 + • Send the password-encrypted message there 
 + • Continue PGP communication on iPad 
 + 
 +⸻ 
 + 
 +==== Option 3: Use a Different Tool for Shared Password Messages ==== 
 + 
 +If your use case is mostly shared-secret messaging: 
 + • Proton Mail (password-protected emails) 
 + • Secure file sharing + separate email 
 + • Encrypted notes + link sharing 
 + 
 +FlowCrypt on iOS is not designed for this scenario. 
 + 
 +⸻ 
 + 
 +===== Summary ===== 
 +  * FlowCrypt on iPad and iPhone cannot send shared-password encrypted messages 
 +  * Seeing only “Send unencrypted” is expected behavior 
 +  * PGP public-key encryption does work fully 
 +  * Shared-key encryption requires desktop FlowCrypt 
 + 
 +⸻ 
flowcrypt.1767802202.txt.gz · Last modified: by Steve Isenberg