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Add generic AES C implement and Zvk* assembly for riscv64 #178

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96d9e54
aes: Add C AES software implementations for RISC-V
HeliC829 Jun 14, 2026
3137db5
aes/riscv64: add RISC-V Zvk* AES implementation for AES CBC/GCM/XTS
HeliC829 Jun 14, 2026
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6 changes: 6 additions & 0 deletions Makefile.am
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Original file line number Diff line number Diff line change
Expand Up @@ -48,6 +48,12 @@ endif
if CPU_AARCH64
include aes/Makefile.am
endif
if CPU_RISCV64
include aes/Makefile.am
endif
if CPU_UNDEFINED
include aes/Makefile.am
endif
include fips/Makefile.am

# LIB version info not necessarily the same as package version
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5 changes: 5 additions & 0 deletions Makefile.unx
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Expand Up @@ -44,6 +44,11 @@ ifneq ($(arch),noarch)
arch = aarch64
units +=aes
endif

ifeq ($(host_cpu)_$(arch),riscv64_)
arch = riscv64
units +=aes
endif
endif

default: lib
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3 changes: 3 additions & 0 deletions README.md
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Expand Up @@ -55,6 +55,9 @@ RISC-V 64:
* For RISC-V Vector (RVV) support:
* Assembler: gas v2.39 or later.
* Compiler: gcc v12.1 or later.
* For RISC-V Vector Crypto (Zvk*) support (Zvkned, Zvkg, Zvkb):
* Assembler: gas v2.42 or later.
* Compiler: gcc v14.1 or later.

other:
* Compiler: Portable base functions are available that build with most C compilers.
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32 changes: 32 additions & 0 deletions aes/Makefile.am
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Expand Up @@ -111,10 +111,40 @@ lsrc_aarch64 += aes/aarch64/gcm_multibinary_aarch64.S \
aes/aarch64/cbc_enc_aes.S \
aes/aarch64/cbc_dec_aes.S

lsrc_aes = aes/aes_base.c \
aes/aes_keyexp_base.c \
aes/aes_cbc_base.c \
aes/aes_gcm_base.c \
aes/aes_xts_base.c

lsrc_riscv64 += ${lsrc_aes} \
aes/riscv64/keyexp_multibinary_riscv64.S \
aes/riscv64/keyexp_riscv64_dispatcher.c \
aes/riscv64/cbc_multibinary_riscv64.S \
aes/riscv64/cbc_riscv64_dispatcher.c \
aes/riscv64/cbc_zvkned_wrap.c \
aes/riscv64/cbc_zvkned.S \
aes/riscv64/gcm_multibinary_riscv64.S \
aes/riscv64/gcm_riscv64_dispatcher.c \
aes/riscv64/gcm_ctr32_zvkned_zvkb.S \
aes/riscv64/ghash_zvkg.S \
aes/riscv64/gcm_zvk.c \
aes/riscv64/xts_multibinary_riscv64.S \
aes/riscv64/xts_riscv64_dispatcher.c \
aes/riscv64/aes_block_zvkned.S \
aes/riscv64/xts_zvkned.c

lsrc_base_aliases += ${lsrc_aes} \
aes/aes_keyexp_base_aliases.c \
aes/aes_cbc_base_aliases.c \
aes/aes_gcm_base_aliases.c \
aes/aes_xts_base_aliases.c

other_src += include/multibinary.asm
other_src += include/internal/test.h include/isa-l_crypto/types.h include/reg_sizes.asm
other_src += aes/gcm_defines.asm
other_src += aes/aes_common.asm
other_src += aes/aes_base.h
other_src += aes/clear_regs.asm
other_src += aes/cbc_common.asm aes/cbc_std_vectors.h
other_src += aes/gcm_vectors.h aes/ossl_helper.h
Expand All @@ -125,6 +155,8 @@ other_src += aes/gcm_avx_gen2.asm
other_src += aes/gcm_avx_gen4.asm
other_src += aes/gcm_keys_vaes_avx512.asm
other_src += aes/gcm_vaes_avx512.asm
other_src += aes/riscv64/aes_zvk_internal.h
other_src += aes/riscv64/aes_zvk_macros.S

check_tests += aes/cbc_std_vectors_test
check_tests += aes/gcm_std_vectors_test
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