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flowcrypt [2026.01.07 13:59] Steve Isenbergflowcrypt [2026.01.07 14:15] (current) – [Recommendation] Steve Isenberg
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-If you wantcan also+Short answer: Yes, but with important limitations. 
-Add fingerprint verification steps +FlowCrypt supports password-encrypted messages (shared secret) instead of public-key (PGP) encryption, but this is not the same as true PGP and works differently. 
-Explain key rotation and expiration + 
-Provide short checklist version for your wiki+Below is a DokuWiki-formatted explanation you can paste directly into your wiki. 
 + 
 +⸻ 
 + 
 +====== 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 
 + 
 +⸻ 
 +This is a known and intentional behavior in FlowCrypt, not something you’re doing wrong. 
 + 
 +Short answer: 
 +👉 On iOS (iPad/iPhone)FlowCrypt does NOT support password-encrypted (“shared key”) messages. 
 +That’s why you only see “Send unencrypted” or “Cancel.” 
 + 
 +Below is a DokuWiki-formatted explanation you can paste into your wiki. 
 + 
 +⸻ 
 + 
 +====== Why FlowCrypt on iPad 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 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, FlowCrypt will only offer: 
 + • Send unencrypted 
 + • Cancel 
 + 
 +⸻ 
 + 
 +===== What This Means Practically ===== 
 + 
 +On an iPad: 
 + • 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 
 + • 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 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 
 + 
 +
  
-Just say the word. 
flowcrypt.1767823156.txt.gz · Last modified: by Steve Isenberg