On Mon, Aug 25, 2025 at 12:46:57PM +0530, Harsh Jain wrote: > Versal TRNG module consist of array of Ring Oscillators as entropy source > and a deterministic CTR_DRBG random bit generator (DRBG). Add driver to > registers entropy source to hwrng and CTR_DRBG generator to crypto subsystem. > Derivation Function (DF) defined in NIST SP-800-90A for CTR_DRBG is not > supported in current TRNG IP. For DF processing, Update drbg module to > export CTR_DRBG derivation function in df_sp80090a module. > > Testing > > Following compile tests done > > * CONFIG_CRYPTO_DRBG_CTR = n and CONFIG_CRYPTO_DEV_XILINX_TRNG = n > * CONFIG_CRYPTO_DRBG_CTR = y and CONFIG_CRYPTO_DEV_XILINX_TRNG = n > * CONFIG_CRYPTO_DRBG_CTR = n and CONFIG_CRYPTO_DEV_XILINX_TRNG = m > * CONFIG_CRYPTO_DRBG_CTR = y and CONFIG_CRYPTO_DEV_XILINX_TRNG = m > > Changes in v5 > - Direct include header file in df_sp80090a.c > - Add internal/drbg.h > > Changes in v5 > - Direct include header file > - Fix review-by tag position > > Changes in v4 > - Add df_sp80090a module to export CTR_DRBG DF function > > Changes in v3 > - Fix yaml warning introduced in v2. > - Squash fix patches > > Changes in v2 > - Fixed signoff chain > - Added 3 patch to fix Kernel test robot bugs > > Harsh Jain (2): > crypto: xilinx: Add TRNG driver for Versal > crypto: drbg: Export CTR DRBG DF functions > > Mounika Botcha (1): > dt-bindings: crypto: Add node for True Random Number Generator > > .../bindings/crypto/xlnx,versal-trng.yaml | 36 ++ > MAINTAINERS | 6 + > crypto/Kconfig | 8 +- > crypto/Makefile | 2 + > crypto/df_sp80090a.c | 247 ++++++++++ > crypto/drbg.c | 244 +--------- > drivers/crypto/Kconfig | 13 + > drivers/crypto/xilinx/Makefile | 1 + > drivers/crypto/xilinx/xilinx-trng.c | 435 ++++++++++++++++++ > include/crypto/df_sp80090a.h | 27 ++ > include/crypto/drbg.h | 25 +- > include/crypto/internal/drbg.h | 54 +++ > 12 files changed, 833 insertions(+), 265 deletions(-) > create mode 100644 Documentation/devicetree/bindings/crypto/xlnx,versal-trng.yaml > create mode 100644 crypto/df_sp80090a.c > create mode 100644 drivers/crypto/xilinx/xilinx-trng.c > create mode 100644 include/crypto/df_sp80090a.h > create mode 100644 include/crypto/internal/drbg.h > > -- > 2.34.1 Patches 1-2 applied. Thanks. -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
