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FPGA/PLD/ASIC Cores

VOCAL customers in many cases have the option of choosing between software and hardware/firmware-based solutions. In particular, several of VOCAL's encryption/decryption security software modules are also available in FPGA, PLD, or ASIC form factors. These standards-based IP Cores provide robust encryption/decryption functionality in a variety of key and IO interface sizes.

Deliverables for all IP Cores:

• Fully synchronous design
• Fully functional and synthesizable VHDL soft-core
• Testbench files to show operation
• VHDL microprocessor interface module
• C Code for wrapper interface, test vector generation and functional verification

IP Core families:

• AES IP Core
• CCM IP Core

Advanced Encryption Standard (AES)

Common specifications for all AES Cores:

• All implementations in accordance with FIPS PUB 197
• ECB (Electronic Codebook) implementation per NIST SP800-38A
• Pipelined to run two 128-bit values at the same time
• Supports all AES key sizes (128, 192, 256)
• Supports software key expansion
• Uses key registers to hold key

AES Core offerings:

VOCAL Part Number	Implementation	I/O Interface
VOCAL-AES-ENC-32	AES Encryption	32-bit
VOCAL-AES-ENC-64	AES Encryption	64-bit
VOCAL-AES-ENC-128	AES Encryption	128-bit
VOCAL-AES-DEC-32	AES Decryption	32-bit
VOCAL-AES-DEC-64	AES Decryption	64-bit
VOCAL-AES-DEC-128	AES Decryption	128-bit
VOCAL-AES-EDC-32	AES Encryption/Decryption	32-bit
VOCAL-AES-EDC-64	AES Encryption/Decryption	64-bit
VOCAL-AES-EDC-128	AES Encryption/Decryption	128-bit
VOCAL-AES-KEY-EXP	AES Key Expansion	supports all AES key sizes

Counter Mode with Cipher Block Chaining Messag Authentication Code (CCM)

Common specifications for all CCM Cores:

• All implementations in accordance with SP 800-97
• Uses AES encryption core in accordance with FIPS PUB 197
• 32/64/128-bit AES encryption core interfaces available
• Supports all AES key sizes (128, 192, 256)
• Supports software key expansion
• Uses key registers to hold key

CCM Core offerings:

VOCAL Part Number	Implementation	I/O Interface
VOCAL-CCM-32	CCM	32-bit
VOCAL-CCM-64	CCM	64-bit
VOCAL-CCM-128	CCM	128-bit