If you are deep in the iOS jailbreaking or sideloading community, you have likely encountered a frustrating, cryptic wall of red text in your command prompt or terminal window. Among the most infamous of these is the "Cydia Impactor error line 37."
if (!EVP_PKEY_cmp(key, cert_key))
error_exit("Private key does not match certificate chain.", 37);
Sideloadly: Currently the most direct replacement for Cydia Impactor. It supports Windows and macOS and allows you to sideload IPAs using your Apple ID with high reliability. cydia impactor error line 37
- Generate an App-Specific Password on Apple’s website.
- Revoke old certificates via the Xcode menu in Impactor.
- Update iTunes (Windows only).
- Accept defeat if you are on iOS 14+ and switch to AltStore or Sideloadly.
Step 7: Reinstall Cydia Impactor
- If none of the above steps work, try reinstalling Cydia Impactor.
If you have Two-Factor Authentication (2FA) enabled on your Apple ID, Cydia Impactor cannot prompt you for the 6-digit code. You must use an App-Specific Password instead of your regular one. Apple ID management page Sign in and navigate to the Sign-In and Security App-Specific Passwords and generate one (e.g., name it "Impactor"). Use this new 16-character password in Cydia Impactor. 2. Revoke Existing Certificates The Ultimate Guide to Fixing "Cydia Impactor Error
Today, Cydia Impactor is mostly considered "legacy software." The iOS community has largely migrated to more robust, frequently updated alternatives that handle the modern Apple signing logic more effectively: Generate an App-Specific Password on Apple’s website
- Visit appleid.apple.com and sign in with your primary Apple ID and password.