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XTEA Block Cipher IP Core for FPGA and ASIC |
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The flexible and highly scalable
InformAsic XTEA core makes it possible to add encryption
functionality into an FPGA or ASIC design. The core requires minimal
hardware resources, hence it is suitable for designs where resource
intensive algorithms like AES and 3DES does not fit.
The InformAsic XTEA core implements the
XTEA (Extended Tiny Encryption Algorithm) block cipher, developed by
Wheeler and Needham. This cipher is suitable for embedded solutions
where high security with a small footprint is needed. The cipher uses
a 128 bit key and works on 64 bits blocks. The core implements ECB
mode but other modes can be provided upon request.
The core provides the ability to
balance between performance and security by selecting the number of
rounds to be performed on any given block at compile time. (Note that
at least 24 rounds per block is recommended)The core is suitable for
embedded systems with moderate bandwidth requirements, i.e. up to 100
Mbit/s. The core features a very fast two-cycle-only setup time and
the core complete each round in two cycles. This means that a 32
round operation has a total latency of 66 cycles. All inputs and
outputs are registered and the design uses no memory blocks,
multipliers or DSP functions. The design also uses a single positive
edge triggered clock and a single synchronous, active low reset.
| FEATURES |
| Block cipher for embedded SoC solutions |
| Implements the standardized XTEA cipher with 128 bit key and 64 bit block size |
| Provides hardware accelerated crypto processing support with a very small footprint |
| Compile time control of number of rounds allows to balance between performance and security |
| Cipher initialization in two cycles |
| 66 cycles total latency for 32 rounds |
| Can be delivered as Verilog 2001 RTL Source or EDIF Netlist |
| Delivered with Reference Model, Design Integration Example and Documentation |
| FPGA Model |
Logic Utilization [LE] |
Registers |
Frequency [MHz] |
| Altera Cyclone-II (EP2C20 C6) |
565 [LE] |
238 |
100 |
| Altera Stratix-II (EP2S15 C3) |
435 [ALUT] |
238 |
135 |
| Xilinx Spartan 2E |
566 [LC] |
238 |
80 |
For pricing and licensing please send your request by using the form on the contact page. Click here.
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