Security and Connectivity for the IoT Edge

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Allegro Cryptography Engine – ACE?

FIPS Validated Cryptography for IoT Applications

ACE? is a cryptographic library module for IoT devices that provides validated software implementations of FIPS-approved algorithms for the calculation of message digests, digital signature creation and verification, bulk encryption and decryption, key generation and key exchange.

Embedded FIPS 140-2 Cryptography

The Allegro Cryptography Engine (ACE?) is a platform independent, high performance, resource sensitive, embedded?FIPS 140-2 Validated?cryptography engine specifically engineered for the rigors of embedded computing. ACE? enables OEM manufacturers to add sophisticated FIPS approved encryption technology to their designs and dramatically speed the development cycle. The ACE? cryptography library is designed to meet the requirements needed for FIPS 140-2 validation.

Allegro Cryptography Engine ACE

ACE?

Embedded systems are appearing in virtually all industries with the capability to communicate independently. The rapid adoption and deployment of modern communication technologies have enabled new applications in healthcare, military applications, energy management, consumer devices and many other areas. With these capabilities, comes the need for embedded device security. Any network-enabled device must be considered as a potential target for malicious intent. Encryption of sensitive data while in motion or at rest is a key component to thwarting malicious attacks and reducing risk.

ACE? is a cryptographic library module for resource sensitive IoT devices that provides validated software implementations of FIPS-approved algorithms for the calculation of message digests, digital signature creation and verification, bulk encryption and decryption, key generation and key exchange. Used stand-alone or pre-integrated with the Allegro EdgeAgent Suite, ACE? provides CAVP validated implementations of sophisticated FIPS approved encryption algorithms for use in embedded systems. In 2005, the National Security Agency (NSA) defined a set of cryptographic algorithms that when used together, are the preferred method for assuring the security and integrity of information passed over public networks such as the Internet. Today, Suite B is globally recognized as an advanced standard for cryptography that defines algorithms and strengths for encryption, hashing, calculating digital signatures and key exchange. ACE? includes a platform independent, CAVP validated implementation of the NSA Suite B defined suite of cryptographic algorithms. ACE? is delivered as ANSI C source.

Securing Data in Motion

Many IoT applications often collect and correlate valuable sensitive information at the edge of the Internet and routinely transmit it to servers in the cloud securely. TLS and DTLS are the “defacto” standards for keeping data secure when communicating with servers in the cloud. Allegro’s RomSTL?, embedded TLS, and DTLS toolkit, tightly integrates FIPS validated cryptography with a standards-based, embedded implementation of TLS/DTLS to keep your data secure while in motion. RomTLS? is additionally integrated to make use of ACE’s support of Suite B algorithms (RFC 6460).

Securing Data at Rest

Allegro’s secure data-at-rest solution is tightly integrated with ACE? validated FIPS 140-2 cryptography. Before offloading data to cloud-based applications, any sensitive information stored by IoT devices faces numerous threats and risks of unintentional exposure. Adding data encryption to the transmission process has been the traditional method for reducing this risk. However, simply encrypting data transmissions doesn’t fully address many of the threats aimed at recovering small segments of data or potentially the entire collection. The Allegro EdgeAgent Suite provides IoT design engineers the ability to proactively address the threat surface created when storing sensitive data on persistent media. Rather than encrypting data at a volume or drive level where exposing a single set of keys potentially compromises a significant amount of sensitive data, Allegro’s secure data-at-rest solution encrypts information at the file level.

ACE? can be used stand-alone or pre-integrated with the Allegro EdgeAgent Suite.

TM: A Certification Mark of NIST, which does not imply product endorsement by NIST, the U.S. or Canadian Governments.

ACE? – FIPS Mode

Digital Signature Algorithms

  • RSA (FIPS 186-4) Key lengths: 2048, 3072
    • Padding Modes: ANSI X9.31, PKCS #1v1.5, PSS
  • DSA (FIPS 186-4) Key lengths: 2048, 3072
  • ECDSA (FIPS 186-4) Curves: NIST P-224, P-256, P-384, P-521

Symmetric Keys

  • AES Key lengths: 128, 192, 256
    • Modes: ECB, CBC, CTR, CFB1, CFB8, CFB128, OFB, CCM
  • AES-GCM Key lengths: 128, 192, 256
  • AES-XTS Key lengths: 128, 256
  • TripleDES
    • Modes: ECB, CBC, CFB1, CFB8, CFB64, OFB

Hash Functions

  • SHA-1
  • SHA-224
  • SHA-256
  • SHA-384
  • SHA-512
  • SHA3-224
  • SHA3-256
  • SHA3-384
  • SHA3-512

Message Authentication

  • HMAC-SHA-1
  • HMAC-SHA-224
  • HMAC-SHA-256
  • HMAC-SHA-384
  • HMAC-SHA-512
  • AES-GMAC Keylengths: 128, 192, 256
  • AES-CMAC Keylengths: 128, 192, 256

Key Agreement

  • DH (NIST SP 800-56A)
  • ECDH Curves: NIST P-224, P-256, P-384, P-521

Key Derivation

  • Password-Based Key Derivation Function 2 (PBKDF2)
  • TLS Key Derivation Functions

Random Number Generator

  • DRBG (NIST SP 800-90B)

ACE? – Non-FIPS Mode

All of the above in addition to the following:

Digital Signature Algorithms

  • RSA: arbitrary key lengths 1024, 2048, 3072
  • DSA: arbitrary key lengths 1024, 2048, 3072

Symmetric Keys

  • DES
  • RC4

Hash Functions

  • MD2
  • MD4
  • MD5

Message Authentication

  • HMAC-MD5

Features

Benefits

Small code footprintMore resource available for application features
ANSI C Source Code DistributionBroad processor architecture support eases porting and support
Processor, RTOS, and TCP/IP stack agnosticAllegro’s products will work with new or existing hardware and software designs
Flexible Security and External Security supportUse software encryption or if available make use of hardware cryptography acceleration
Compilation switches for size, feature, and speed trade-offsAllows the development team to optimize for system resources

Supported?RFCs

System?Requirements

  • Processor Architecture – Works with any 16-bit, 32-bit or 64-bit processor
  • Operating System (OS) – Works with any OS vendor and will function without an OS if needed
  • Compiler – ANSI C

FIPS 140-2 Level 2 Logo

NIST CVMP Validation Reference

 

Validated FIPS 140-2 Cryptographic Modules

 

Certificate NumberStatusDate
3432Active4/11/2019
2966Active7/20/2017
2048Historical2/20/2014

 

CAVP Validation References

 

AES Validation

Validation NumberDate
AES 55747/27/2018
AES 55737/27/2018
AES 412110/14/2016
AES 267111/8/2013
AES 23141/18/2013
AES 227111/15/2012

 

DSA Validation

Validation NumberDate
DSA 111610/14/2016
DSA 81011/8/2013
DSA 7281/18/2013
DSA 70811/15/2012

 

RSA Validation

Validation NumberDate
RSA 30007/27/2018
RSA 29997/27/2018
RSA 222710/14/2016
RSA 137411/8/2013
RSA 11971/8/2013
RSA 116411/15/2012

 

ECDSA Validation

Validation NumberDate
ECDSA 15057/27/2018
ECDSA 15047/27/2018
ECDSA 93610/14/2016
ECDSA 46511/8/2013
ECDSA 3791/18/2013
ECDSA 36711/15/2012

 

Triple-DES

Validation NumberDate
TDES 225110/14/2016
TDES 160211/8/2013
TDES 14591/18/2013
TDES 141811/15/2012

 

SHA Validation

Validation NumberDate
SHS 44787/27/2018
SHS 44777/27/2018
SHS 339010/14/2016
SHS 224311/8/2013
SHS 19971/8/2013
SHS 195211/15/2012

 

SHA-3 Validation

Validation NumberDate
SHA-3 87/27/2018

 

SHAKE Validation

Validation NumberDate
SHA-3 87/27/2018

 

DRBG Validation

Validation NumberDate
DRBG 22247/27/2018
DRBG 22237/27/2018
DRBG 124110/14/2016
DRBG 43011/8/2013
DRBG 2861/8/2013
DRBG 27911/15/2012

 

Component Validations

 

KDF-TLS Validations

Validation NumberDate
Component 20629/7/2018
Component 20619/7/2018
Component 10741/27/2017

 

KAS-FFC Validations

Validation NumberDate
Component 92710/14/2016
Component 14811/8/2013
Component 4311/15/2012

 

KAS-ECC Validations

Validation NumberDate
Component 20057/27/2018
Component 20047/27/2018
Component 92710/14/2016
Component 14811/8/2013
Component 501/8/2013
Component 4311/15/2012

 

HMAC-SHA2 Validations

Validation NumberDate
HMAC 37157/27/2018
HMAC 37147/27/2018
HMAC 269210/14/2016
HMAC 166111/8/2013
HMAC 14301/8/2013
HMAC 139011/15/2012

Contact Us Today To Ensure Your IoT is Secure

Implementing IoT device security can be a challenge. Let us help you by sharing our proven framework for integrating a proactive security approach into your design. Click the button below to schedule a one-on-one web conference to discuss your security needs.

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