Apple-Mail uses DES-EDE3-CBC and SHA1 for new S/MIME-messages. Nowadays, both algorithms are considered as VERY WEAK and probably crackable by security agencies ore even large botnets. Is it somehow ...
I just installed my S/MIME certificates on my iPhone 6 for both, signing and encryption. Using a mail client on computers I can configure which hash algorithm and encryption is used. As for example ...
Usually, a signed message shows a checkmark icon. Clicking on this icon displays the certificate that was used to sign the message: Not so when a message lies in an exchange mailbox, and is ...