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KEM C-API

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This commit is contained in:
Henry Case 2021-03-24 10:25:45 +00:00
父節點 4a70142872
當前提交 74f8c77e97
共有 5 個檔案被更改，包括 141 行新增 和 52 行删除
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36
.cmake/common.mk
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@ -1,5 +1,8 @@
# Common function for defining algorithm component
function(define_crypto_alg name namespace src inc test_src)
function(define_crypto_alg name namespace src inc)
get_property(OBJ_LIBS GLOBAL PROPERTY obj_libs)
set_property(GLOBAL PROPERTY obj_libs ${OBJ_LIBS} pqclean_${name})
add_library(
pqclean_${name}
OBJECT
@ -17,38 +20,11 @@ function(define_crypto_alg name namespace src inc test_src)
-DPQCLEAN_NAMESPACE=${namespace}
)
add_library(
pqclean_test_${name}
OBJECT
${test_src}
)
target_compile_definitions(
pqclean_test_${name} PRIVATE
-DPQCLEAN_NAMESPACE=${namespace}
)
target_include_directories(
pqclean_test_${name} PRIVATE
src/common
${inc}
)
add_executable(
test_runner_${name}
)
target_link_libraries(
test_runner_${name}
common
pqclean_${name}
pqclean_test_${name}
)
endfunction()
function(define_kem_alg name namespace src inc)
define_crypto_alg(${name} ${namespace} "${src}" "${inc}" ${PROJECT_SOURCE_DIR}/test/kem/testvectors.c)
define_crypto_alg(${name} ${namespace} "${src}" "${inc}")
endfunction()
function(define_sig_alg name namespace src inc)
define_crypto_alg(${name} ${namespace} "${src}" "${inc}" ${PROJECT_SOURCE_DIR}/test/sign/testvectors.c)
define_crypto_alg(${name} ${namespace} "${src}" "${inc}")
endfunction()

18
CMakeLists.txt
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@ -9,6 +9,7 @@ set(CMAKE_VERBOSE_MAKEFILE ON)
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "~/.cmake/Modules")
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "3rd/cmake-modules")
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
string(TOLOWER "${CMAKE_BUILD_TYPE}" CMAKE_BUILD_TYPE_LOWER)
@ -81,6 +82,9 @@ include_directories(
src
)
set_property(GLOBAL PROPERTY obj_libs "")
# Set CPU architecture
set(CMAKE_C_FLAGS "${C_CXX_FLAGS} -D${ARCH}")
set(CMAKE_CXX_FLAGS "${C_CXX_FLAGS} -D${ARCH}")
@ -118,6 +122,7 @@ add_subdirectory(src/sign/sphincs/sphincs-sha256-256s-robust/clean)
add_subdirectory(src/sign/sphincs/sphincs-sha256-128s-robust/clean)
add_subdirectory(src/sign/sphincs/sphincs-sha256-128f-simple/clean)
add_subdirectory(src/sign/sphincs/sphincs-sha256-192f-robust/clean)
add_subdirectory(src/kem/kyber/kyber512/clean)
add_subdirectory(src/kem/kyber/kyber768/clean)
add_subdirectory(src/kem/kyber/kyber1024/clean)
@ -217,21 +222,18 @@ add_library(
pqclean_s
STATIC
)
get_property(OBJ_LIBS GLOBAL PROPERTY obj_libs)
target_link_libraries(
pqclean
common
pqclean_dilithium2_clean
pqclean_dilithium3_clean
pqclean_dilithium5_clean
${OBJ_LIBS}
)
target_link_libraries(
pqclean_s
common
pqclean_dilithium2_clean
pqclean_dilithium3_clean
pqclean_dilithium5_clean
${OBJ_LIBS}
)
add_executable(
@ -243,8 +245,8 @@ add_executable(
target_link_libraries(
mytest
gtest
pqclean_s
gtest_main)
gtest_main
pqclean_s)
target_include_directories(
mytest PRIVATE

53
src/capi/pqapi.c
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@ -1,11 +1,16 @@
#include <stdint.h>
#include <stdbool.h>
#include "pqapi.h"
#include "kem/kyber/kyber512/clean/api.h"
#include "kem/kyber/kyber512/avx2/api.h"
#include "kem/kyber/kyber768/clean/api.h"
#include "kem/kyber/kyber768/avx2/api.h"
#include "kem/kyber/kyber1024/clean/api.h"
#include "kem/kyber/kyber1024/avx2/api.h"
// helpers
#define OPT_VERSION _CLEAN_
// Helper to stringify constants
#define STR(x) STR_(x)
#define STR_(x) #x
@ -29,23 +34,49 @@
#define PQC_SIGN_BSZ(x) GLUE(A(x), CRYPTO_BYTES)
#define PQC_CT_BSZ(x) GLUE(A(x), CRYPTO_CIPHERTEXTBYTES)
#define PQC_NAME(x) GLUE(A(x), CRYPTO_ALGNAME)
#define PQC_FN_KEYGEN(x) GLUE(A(x), crypto_kem_keypair)
#define PQC_FN_ENCAPS(x) GLUE(A(x), crypto_kem_enc)
#define PQC_FN_DECAPS(x) GLUE(A(x), crypto_kem_dec)
#define REG_ALG(ID) \
{ \
.alg_id = ID, \
.alg_name = STR(ID), \
.prv_key_bsz = PQC_PRV_KEY_BSZ(ID), \
.pub_key_bsz = PQC_PUB_KEY_BSZ(ID), \
.keygen = PQC_FN_KEYGEN(ID), \
}
// Macro magic needed to initialize parameters for a scheme
#define REG_KEM(ID) \
{ \
.p.alg_id = ID, \
.p.alg_name = STR(ID), \
.p.prv_key_bsz = PQC_PRV_KEY_BSZ(ID), \
.p.pub_key_bsz = PQC_PUB_KEY_BSZ(ID), \
.ciphertext_bsz = PQC_CT_BSZ(ID), \
.secret_bsz = PQC_KEM_BSZ(ID) \
#define REG_KEM(ID) \
{ \
.p = REG_ALG(ID), \
.ciphertext_bsz = PQC_CT_BSZ(ID),\
.secret_bsz = PQC_KEM_BSZ(ID), \
.encapsulate = PQC_FN_ENCAPS(ID),\
.decapsulate = PQC_FN_DECAPS(ID),\
}
enum {
KYBER512
KYBER512,
KYBER768,
KYBER1024
};
const kem_params_t kems[] = {
REG_KEM(KYBER512)
REG_KEM(KYBER512),
REG_KEM(KYBER768),
REG_KEM(KYBER1024),
};
bool pqc_keygen(const params_t *p, uint8_t *sk, uint8_t *pk) {
return !p->keygen(sk, pk);
}
bool pqc_kem_encapsulate(const params_t *p, uint8_t *ct, uint8_t *ss, const uint8_t *pk) {
return !((kem_params_t*)p)->encapsulate(ct, ss, pk);
}
bool pqc_kem_decapsulate(const params_t *p, uint8_t *ss, const uint8_t *ct, const uint8_t *sk) {
return !((kem_params_t*)p)->decapsulate(ss, ct, sk);
}

60
src/capi/pqapi.h Normal file
查看文件

@ -0,0 +1,60 @@
#ifndef PQAPI_H_
#define PQAPI_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#include <stdbool.h>
// Parameters of the scheme
typedef struct params_t {
const uint8_t alg_id;
const char* alg_name;
const uint32_t prv_key_bsz;
const uint32_t pub_key_bsz;
const bool is_kem;
int (*keygen)(uint8_t *sk, uint8_t *pk);
} params_t;
typedef struct kem_params_t {
params_t p;
const uint32_t ciphertext_bsz;
const uint32_t secret_bsz;
int (*encapsulate)(uint8_t *ct, uint8_t *ss, const uint8_t *pk);
int (*decapsulate)(uint8_t *ss, const uint8_t *ct, const uint8_t *sk);
} kem_params_t;
typedef struct sig_params_t {
params_t p;
const uint32_t sign_bsz;
} sig_params_t;
bool pqc_keygen(const params_t *p, uint8_t *sk, uint8_t *pk);
bool pqc_kem_encapsulate(const params_t *p, uint8_t *ct, uint8_t *ss, const uint8_t *pk);
bool pqc_kem_decapsulate(const params_t *p, uint8_t *ss, const uint8_t *ct, const uint8_t *sk);
inline uint32_t ciphertext_bsz(const params_t *p) {
return ((kem_params_t *)p)->ciphertext_bsz;
}
inline uint32_t shared_secret_bsz(const params_t *p) {
return ((kem_params_t *)p)->secret_bsz;
}
inline uint32_t public_key_bsz(const params_t *p) {
return p->pub_key_bsz;
}
inline uint32_t private_key_bsz(const params_t *p) {
return p->prv_key_bsz;
}
#ifdef __cplusplus
}
#endif
#endif

26
test/mytest.cpp
查看文件

@ -1,9 +1,29 @@
#include <vector>
#include <algorithm>
#include <gtest/gtest.h>
#include "capi/pqapi.h"
extern const kem_params_t kems[];
// TODO: change - just to see if function registration works OK.
TEST(Kyber,XXX) {
ASSERT_EQ(kems[0].p.prv_key_bsz, 1632);
}
TEST(Kyber,KEMOneOff) {
for (int i=0; i<3; i++) {
const params_t *p = (params_t*)&kems[i];
std::vector<uint8_t> ct(ciphertext_bsz(p));
std::vector<uint8_t> ss1(shared_secret_bsz(p));
std::vector<uint8_t> ss2(shared_secret_bsz(p));
std::vector<uint8_t> sk(private_key_bsz(p));
std::vector<uint8_t> pk(public_key_bsz(p));
ASSERT_TRUE(
pqc_keygen(p, pk.data(), sk.data()));
ASSERT_TRUE(
pqc_kem_encapsulate(p, ct.data(), ss1.data(), pk.data()));
ASSERT_TRUE(
pqc_kem_decapsulate(p, ss2.data(), ct.data(), sk.data()));
ASSERT_TRUE(
std::equal(ss1.begin(), ss1.end(), ss2.begin()));
}
}