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View Code? Open in Web Editor NEW[HISTORICAL] FIPS and higher-level algorithm tests for RISC-V Crypto Extension
License: Other
[HISTORICAL] FIPS and higher-level algorithm tests for RISC-V Crypto Extension
License: Other
Have installed RISCV toolchain from https://github.com/riscv/riscv-crypto/ with the arch of RISCV64. However, the cross compiling (make -f rv64.mk) showed error "unsupported extension 'zkn'".
The detailed log is shown as below.
% make -f rv64.mk
/path/to/build/riscv64-unknown-elf/bin/spike --isa=rv64imac_zkn_zks_zkr /path/to/build/riscv64-unknown-elf/riscv64-unknown-elf/bin/pk ./xtest
error: bad --isa option 'rv64imac_zkn_zks_zkr'. unsupported extension 'zkn'
make: *** [rv64.mk:25: spike64] Error 255
Any suggestion would be much appreciated.
Hi, all
We notice that the definition of intrinsic for sm3 is
static inline long _rv_sm3p1(long rs1)
{ return _RVK_INTRIN_IMPL(sm3p1)(rs1); } // SM3P1
while the operation defined in the specification is
We found that sm3p1
only use low 32 bit of rs1
in both rv32 and rv64, but the type of parameter rs1 in intrinsic is long
.
so, what about we change the type of rs1
into uint32_t
?
Bonjour, Do you have any planned support for CRSTALS Kyber or any other PQ algorithm in RISC-V simulation?
Some code here relies on (pretty bad) rvintrin.h
file from bitmanip v0.93.
This is not how rvintrin.h
should look like.
See: riscv/riscv-bitmanip#29 (comment)
"the idea is put in all intrinsics in one file, and conditionalize them based on enabled extensions, similar to x86intrin.h."
Here is how rvintrin.h
may look like:
/****************************************************************************
*
* RISC-V intrinsics top-level header file.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
****************************************************************************/
#ifndef __RVINTRIN_H__
#define __RVINTRIN_H__
// Bitmanip intrinsics (Zba, Zbb, Zbc, Zbs) are not implemented.
// Bitmanip spec ver. 1.0.0. does not require any of them.
// There are some reasons not to implement them:
// > Redundantness: all these functions have their machine descriptions --
// because they are simple enough for compiler to emit them.
// > Readability: e.g. a | ~b is more readable than __rv_orn(a, b).
// > Robustness: no unexpected type cast issues / redundant warnings.
#include "rvzkndintrin.h"
#include "rvzkneintrin.h"
...
#endif // __RVINTRIN_H__
Lower-level files should neither rely on depricated options nor require anything implicitly.
This is how rvzkndintrin.h
may look like:
/****************************************************************************
*
* RISC-V intrinsics header file with AES decoding intrinsics.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
****************************************************************************/
#ifndef __RVZKNDINTRIN_H__
#define __RVZKNDINTRIN_H__
#ifndef __RVINTRIN_H__
#error Never use <rvzkndintrin.h> directly; include <rvintrin.h> instead.
#endif
// if you rely on any other intrinsic file, you may either include it explicitly or generate some error
#ifndef __RVZBKBINTRIN_H__
#error <rvzbkbintrin.h> must be included before <rvzkndintrin.h>.
#endif
// but never rely on other extension's intrinsics.
As there is no upstream file with bitmanip intrinsics, do not heir its bad habits, i.e.:
__rv_
as the only prefix for intrinsic functions;RVINTRINEMULATE
or other non-spec defines. Compiler-defined __riscv_zknd
(and similar) is enough for compile-time discovery of enabled extensions;long
. Use [u]int(32,64,XLEN)_t
instead.Hi , I found bswap has builtin function but doesn't have Intrinsics in riscv_crypto.md . In addition, I also can't find bswap in riscv_crypto_scalar.h . Is this what it is or is it forgotten?
While reading the current intrinsic definition, I noticed that some functions are using long
type instead of a fixed length type like int32_t
as many other occurrences do. An example is static inline long _rv_sha256sum1(long rs1)
here.
Thus, I am wondering whether are there some special reasons for this difference? If not, would changing it into int32_t
a better option? The reason is, the function above uses _rv32_ror
intrinsic from B extension whose function signature uses int32_t
type and this change could increase the clarity of the type and may make it more uniformed across extensions and the file itself. Thanks in advance.
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