CryptoGraf
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| CryptoGraf | |
 CryptoGraf (S60, Symbian OS 7.1) |
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| Developer: | CryptoGraf Co., Ltd. |
|---|---|
| Latest release: | 1.0 / December 28, 2006 |
| OS: | Symbian |
| Use: | Encryption |
| Website: | www.cryptograf.com |
CryptoGraf is a secure messaging application for smartphones running Symbian OS. It allows one to compose and send secure messages that are encrypted and digitally signed using S/MIME standard based methods.
The encryption algorithms supported by CryptoGraf include AES, RSA and SHA-256.
The user send encrypted SMS and MMS to Crypto Contacts (RSA Public Keys). Crypto Contacts must be exchanged before messages can be sent. The way a Crypto Contact is received determines the trust level assigned.
- Hi trust for Crypto Contacts received by Bluetooth.
- Medium trust for Crypto Contacts received via Hi trust contacts.
- Low trust for Crypto Contacts received by SMS or MMS.
The use of Crypto Contacts builds a trust model similar to Web of trust, known from PGP. Crypto Contacts are compatible with X.509 digital certificates and contain RSA (1024/2048 bit) public keys. Messages are encrypted using AES-256 bit, and digitally signed using RSA (1024/2048 bit) with SHA-256. CryptoGraf uses default Symbian Messaging App's Inbox, Sent and other folders.
[edit] CryptoGraf in the press
CryptoGraf got attention from local newspaper after their first release.
- The Nation, 23 Jan 2007. Data-encryption firm upbeat
- Bangkok Post, 31 Jan 2007. Mobile encryption solution
