Hi, Instead of keychain, which is a good idea but maybe problematic for cross platform and backing-up / restoring. Don't get me wrong, I like and I trust apple iCloud backups but maybe not a good option for your situation.
There is the PKCS12 file format which is made to store private keys (a keystore)... The file is a secure (encrypted) key store which can be opened with a password. This way, each user has a keystore password (random generated) and a pkcs12 file in a blob, the keystone password is encrypted with a master password (or using a custom user password). The keystore contains the private key. The public key can always be generated from a private key. You will have to be sure that the system works when user changes his main password, etc.. openssl can manage PKCS12. Contact me if you need some help on this (I have done a lot of openssl stuff with 4D components). HTH Bruno LEGAY A&C Consulting ********************************************************************** 4D Internet Users Group (4D iNUG) Archive: http://lists.4d.com/archives.html Options: https://lists.4d.com/mailman/options/4d_tech Unsub: mailto:[email protected] **********************************************************************
