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Add an implementation of ChaCha20 using the Zvkb extension. The assembly code is derived from OpenSSL code (openssl/openssl#21923) that was dual-licensed so that it could be reused in the kernel. Nevertheless, the assembly has been significantly reworked for integration with the kernel, for example by using a regular .S file instead of the so-called perlasm, using the assembler instead of bare '.inst', and reducing code duplication. Signed-off-by: Jerry Shih <jerry.shih@sifive.com> Co-developed-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Eric Biggers <ebiggers@google.com> Link: https://lore.kernel.org/r/20240122002024.27477-6-ebiggers@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
9 lines
331 B
Makefile
9 lines
331 B
Makefile
# SPDX-License-Identifier: GPL-2.0-only
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obj-$(CONFIG_CRYPTO_AES_RISCV64) += aes-riscv64.o
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aes-riscv64-y := aes-riscv64-glue.o aes-riscv64-zvkned.o \
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aes-riscv64-zvkned-zvbb-zvkg.o aes-riscv64-zvkned-zvkb.o
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obj-$(CONFIG_CRYPTO_CHACHA_RISCV64) += chacha-riscv64.o
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chacha-riscv64-y := chacha-riscv64-glue.o chacha-riscv64-zvkb.o
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