Se una delle prime cose che vi vengono in mente pensando ad internet è “la fuori è una giungla” o utilizzate un PC che potrebbe facilmente finire sotto le grinfie di persone che non vi stanno troppo a genio, potreste aver bisogno di software utili alla cifratura di tutti i dati importanti e, le comunicazioni via web.
Lo so, già state pensando “la cifratura dei dati è una cosa seria, chissà quanti soldi ci vorranno per averla” e invece vi sbagliate di grosso! Esistono decine di software assolutamente gratuiti che forniscono una cifratura impeccabile sia dei dati che delle comunicazioni via web. Eccovi i migliori 25, suddivisi in categorie:
Instant Messaging:
- IMsecure: Cifra le conversazioni tramite IM.
Password:
- Password Encryption: File cifrato dove salvare tutte le nostre password.
- RoboForm: Cifra tutte le nostre password con una master password e debella tutti i keylogger. Da la possibilità di creare molteplici profili (e risulta quindi ottimo quando uno stesso PC viene utilizzato da più persone).
VoIP:
- Zfone: Software di Paul Zimmerman che permette di cifrare tutte le telefonate fatte attraverso VoIP. Compatibile con i maggiori client.
Accesso Remoto:
- OpenVPN: Per avere un accesso remoto sicuro VPN, WiFi e non solo. Necessita delle libreri di crittografia OpenSSL.
E-mail:
- Private Post Desktop: Software che cifra le e-mail per una sicura e veloce spedizione. Per aprire le mail, è necessario un reader gratuito.
- Stunnel: SSL wrapper universale che cifra POP, IMAP, LDAP, ed altre e-mail senza cambiare il daemon’s code. Necessita di OpenSSL.
- Packman: Software che permette di cifrare e-mail ed allegati come fossero su un server privato.
- Freenigma: Estensione per Firefox utile a cifrare le web-mail. Supporta Gmail, Yahoo! ed Hotmail.
Chat:
- TrilogyEC: Cifra chat, IM ed il trasferimento di file.
Comunicazione:
- OpenSSL: Implementazione open source dei protocolli SSL e TLS con librerie che eseguono le principali funzioni crittografiche.
- OpenSSH: Elimina i rischi di eavesdropping (ovvero il tracciamento delle telefonate tramite VoIP), hijacking e trasmissione delle password.
- GnuPG: Protegge dati e comunicazioni con una cifratura avanzata. Può essere usato per creare firme digitali.
- Tor: Anonimizza la navigazione sul web.
File:
- FileVault: Crea file auto-estraenti ed auto-decifranti (che quindi non necessitano di alcun software).
- TrueCrypt: Software che crea dischi virtuali cifrati. Funziona su Windows Vista, XP, 2000 e Linux.
- AxCrypt: Permette di cifrare, comprimere, decifrare, eliminare, visualizzare e modificare i file in modo facile e veloce.
- Kruptos: Permette di cifrare i file sia su PC che dispositivi mobili. E’ in grado di generare file auto-decifranti.
Disco Fisso:
- CryptoExpert: Crea dischi fissi virtuali cifrati.
Testi:
- fSekrit: Software per cifrare testi.
- Silver.Zero: Cifra testi in 3 modalità differenti.
- PlainText Crypto: Trasforma i testi in cifre (inviabili anche via e-mail).
Dati:
- Data Scrambler: Trasforma i dati in un’immagine bitmap con algoritmo MD5.
- PixelCryptor: Software per cifrare/decifrare dati attraverso immagini.
Varie:
- Xidie Security Suite: Suite di software che include steganografia, aggiunta di "disturbi" ed altro.
Fonte: Virtual Hosting
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