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bb54668837
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>
33 lines
918 B
Plaintext
33 lines
918 B
Plaintext
# SPDX-License-Identifier: GPL-2.0
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menu "Accelerated Cryptographic Algorithms for CPU (riscv)"
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config CRYPTO_AES_RISCV64
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tristate "Ciphers: AES, modes: ECB, CBC, CTR, XTS"
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depends on 64BIT && RISCV_ISA_V && TOOLCHAIN_HAS_VECTOR_CRYPTO
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select CRYPTO_ALGAPI
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select CRYPTO_LIB_AES
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select CRYPTO_SKCIPHER
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help
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Block cipher: AES cipher algorithms
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Length-preserving ciphers: AES with ECB, CBC, CTR, XTS
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Architecture: riscv64 using:
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- Zvkned vector crypto extension
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- Zvbb vector extension (XTS)
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- Zvkb vector crypto extension (CTR)
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- Zvkg vector crypto extension (XTS)
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config CRYPTO_CHACHA_RISCV64
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tristate "Ciphers: ChaCha"
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depends on 64BIT && RISCV_ISA_V && TOOLCHAIN_HAS_VECTOR_CRYPTO
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select CRYPTO_SKCIPHER
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select CRYPTO_LIB_CHACHA_GENERIC
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help
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Length-preserving ciphers: ChaCha20 stream cipher algorithm
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Architecture: riscv64 using:
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- Zvkb vector crypto extension
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endmenu
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