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lockey USB, I2C software protection dongles

lockey versions comparision

lockeybox lockey4box lockey8box

Memory

Memory available for any use, Accessible to read/write by byte or in blocks of chosen length.

256 bytes 4 KB 8 KB

AES encryption/decryption

Encryption done in-hardware, using secret keys stored in lockey. (stored keys are write-only)

none place for securely storing up to 4 encryption keys (AES keys - 128 bits length) place for securely storing up to 8 encryption keys (AES keys - 128 bits length)

Hardware pseudo-random number generator

Generates pseudo-random data blocks of 16-byte length in lockey.

no yes yes

Communication password (logging in)

Programmable password for access to lockey. It's needed to establish communication and then access its resources.

32 bytes table (a key)
or
text pass-phrase

Reset password - restoring factory settings

Programmable password for erasing any stored data and restoring lockey to factory settings.

32 bytes table (a key)
or
text pass-phrase

ID

Programmable ID to easy find the right lockey, when multiple are available.

4 bytes

Serial number

A unique serial number assigned by the manufacturer during production.

4 bytes