The GSMK CryptoPhone 220 is a secure Tri-Band mobile phone that comes with full source-code available for independent review.

• Secures your voice's privacy
• Strongest and most secure algorithms available today
• AES256 and Twofish
• 4096 bit Diffie-Hellman key exchange with SHA256 hash function
• Readout-hash based key authentication
• 256 bit effective key length
• Encryption key is destroyed immediately after the call ends
• Source code available online for independent security assessments
• Also supports unencrypted calls, unencrypted SMS, address book, calendar etc.
• Works in any 900/1800/1900 GSM network that provides data call facilities
• Standby: 180 hours
• Talk time: up to 3 hours 30 minutes

Download the CryptoPhone video:   MPG or WMF

The full source code of the GSMK CryptoPhone