The new ASCON-F core is a compact and fast custom-hardware accelerator for the Ascon cryptographic functions recently selected by NIST for lightweight AEAD ...
Silicon IP Cores
SHA-384/512
SHA-384 and SHA-512 Secure Hash Crypto Engine
The SHA-384/512 is a high-throughput, and compact hardware implementation of the SHA-384 and the SHA-512 cryptographic hash functions provisioned by the FIPS180-4 standard.
The core is designed for ease of use and integration and adheres to industry-best coding and verification practices. Technology mapping, and timing closure are trouble-free, as the core contains no multi-cycle or false paths, and uses only rising-edge-triggered D-type flip-flops, no tri-states, and a single-clock/reset domain. The SHA-384/512 core features a simple input and output data interface. Support for AMBA bus interfaces and integration with an external DMA are available as options.
The highly reliable SHA-384/512 has been production-proven in several ASIC and FPGAs designs.
Support
The core as delivered is warranted against defects for ninety days from purchase. Thirty days of phone and email technical support are included, starting with the first interaction. Additional maintenance and support options are available.
Deliverables
The core is available in RTL (VHDL or Verilog) source code or as a targeted FPGA netlist. Its deliverable package includes the following:
- Sophisticated self-checking HDL testbench
- C Model & test vector generator
- Sample simulation & synthesis scripts
- User documentation
The SHA-256 is a purely digital design and it can be mapped to any ASIC technology. The following are sample results with all core I/Os assumed to be routed on-chip. The provided figures do not represent the higher speed or smaller area for the core. Please contact CAST to get characterization data for your target configuration and technology.
| Technology | Logic Resources |
Memory Resources |
Freq. (MHz) |
Throughput (Mbps) |
|---|---|---|---|---|
| TSMC 16nm | 24,300 Eq. Gates | - | 1,700 | 21,49 |
| TSMC 28nm HPC | 21,200 Eq. Gates | - | 1,700 | 21,49 |
| TSMC 40nm G | 27,400 Eq. Gates | - | 1,700 | 21,49 |
The SHA-256 can be mapped to any Altera FPGA device (provided sufficient silicon resources are available). The following are sample results with all core I/Os assumed to be routed on-chip. The provided figures do not represent the higher speed or smaller area for the core. Please contact CAST to get characterization data for your target configuration and technology.
| Technology | Logic Resources |
Memory Resources |
Freq. (MHz) |
Throughput (Mbps) |
|---|---|---|---|---|
| Agilex (-2) | 1,872 ALMs | - | 375 | 4,741 |
| Arria 10 GX (-1) | 1,930 ALMs | 4 RAMB | 250 | 3,160 |
The SHA-256 can be mapped to any AMD FPGA device (provided sufficient silicon resources are available). The following are sample results with all core I/Os assumed to be routed on-chip. The provided figures do not represent the higher speed or smaller area for the core. Please contact CAST to get characterization data for your target configuration and technology.
| Technology | Logic Resources |
Memory Resources |
Freq. (MHz) |
Throughput (Mbps) |
|---|---|---|---|---|
| Kintex UltraScale (-1) | 2,132 LUT | - | 275 | 3,477 |
| Kintex UltraScale+ (-1) | 1,974 LUT | - | 350 | 4,425 |
| Virtex UltraScale (-2) | 2,304 LUT | - | 475 | 6,005 |
| Versal (-2MP) | 2,453LUT | - | 375 | 4,741 |
Engineered by Ocean Logic.
Features List
- Custom-hardware accelerator for the SHA-384 and SHA-512 cryptographic hash functions
- Compliant to FIPS 180-4 with maximum message length up to (2128 – 1) bits
- High throughput:
- 81 clock-cycles per 1024-bit input block
- Throughput scaling with multiple clock instances.
- Small Silicon footprint: 15k-20k Gates
- Easy integration & implementation
- Fully synchronous, uses only the rising clock edge, single-clock domain, no false or multicycle timing paths, scan-ready, LINT-clean, reusable design
- Simple input and output interfaces optionally bridged to AMBA™ interfaces or integrated with a DMA engine.
- Available in VHDL or Verilog source code format, or as a targeted netlist for AMD/Xilinx, Intel FPGA, Lattice, Microsemi, or other FPGA devices
- Complete deliverables include test benches, C model, and test vector generator
- Multiple times production-proven in ASIC and FPGA designs
This core implements encryption functions and as such it is subject to export control regulations. Export to your country may or may not require a special export license. Please contact CAST to determine what applies in your specific case.