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ATVAULTIC460 Datasheet(PDF) 4 Page - ATMEL Corporation |
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ATVAULTIC460 Datasheet(HTML) 4 Page - ATMEL Corporation |
4 / 30 page 4 TPR0441BX–SMS–09/09 ATVaultIC460 3. The authenticator checks the signature using either the same secret key or the public key associated to the claimant’s private key and decides whether the claimant is authorized or not based on the signature verification result. This strong authentication method requires storing secret data. Pure software multi-factor solu- tions are thus not reliable. Numerous companies are now providing authentication solutions based on USB tokens. Tokens connected through USB are a convenient solution since they require no additional hardware. Atmel’s turnkey USB Secure Microcontroller Solutions can help providers focus on their security model and their application without loosing too much time on tamper protection and other com- plex hardware security concerns. 1.3 Secure storage If sensitive data is stored in files on a hard disk, even if those files are encrypted, the files can be stolen, cloned and subjected to various kinds of attacks (e.g. brute force or dictionary attack on passwords). Therefore secure microcontrollers-based hardware tokens are a must. Placing secrets outside the computer avoids risking exposure to malicious software, security breaches in web browsers, files stealing, etc. 1.4 Flexibility The ATVaultIC460 product features: • Various communication interfaces including SPI (Serial Protocol Interface), I2C (Twisted Wire Interface), USB (Universal Serial Bus) and ISO7816 SmartCard interface. • Low pin count (Reset, Vcc, GND, and communication interface specific pins) making integration into an existing board simple. ATVaultIC460 modules are available in small packages (SOIC8 or QFN44) to fit into the most size-constrained devices. • Low power consumption, in order to extend battery life in portable devices and low-power systems. ATVaultIC460 devices consume less than 400μA in standby mode, and only 10 to 20 mA during CPU-intensive operations depending on the required action. • Embedded firmware that provides advanced functions: – Secure storage: a fully user-defined non-volatile storage of sensitive or secret data. – Identity-based authentication with user, administrator and manufacturer roles supported. – Administration mode to manage user authentication data and security features – Manufacturer mode to initialize the file system content and module parameters. – Cryptographic command set to perform cryptographic operations using keys and data from the file system including: authentication, digital signature, encryption/decryption, hash, one-time password generation, random generation and public key pair generation. – Public domain cryptographic algorithms such as DES, 3DES, AES, RSA® PKCS#1 v2.1, DSA, EC-DSA, MAC using DES, 3DES or AES – Cryptographic protocols such as secret-key unilateral or mutual authentication [3] and public key based unilateral or mutual authentication [4]. – Secure Channel Protocol using 3DES or AES. – Robust communication protocol stacked over the physical communication interfaces. |
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