The Vorago VA416x0 is a radiation-hardened Arm Cortex-M4F microcontroller used in space, satellite and other high-reliability systems, and is fully supported by wolfSSL and wolfBoot. wolfCrypt now adds support for its on-chip True Random Number Generator (TRNG), a hardware entropy source for TLS and key generation.
- Enable with WOLFSSL_VA416X0_TRNG and the Vorago SDK header va416xx.h on the include path. No SDK driver is needed.
- The TRNG seeds the SP800-90A Hash-DRBG, which produces the random output. Keep HAVE_HASHDRBG enabled, since the TRNG alone delivers only about 1.25 kb/s.
- Every block of entropy is checked by the TRNG’s built-in health tests (Von Neumann, CRNGT and autocorrelation). A failed block is discarded and collected again, and wolfCrypt returns an error rather than using bad entropy.
Full details are in the pull request 10671.
Check out the wolfBoot VA416x0 build and flash guide.
If you have questions about any of the above, please contact us at facts@wolfssl.com or call us at +1 425 245 8247.
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