@@ -0,0 +1,138 @@ | |||
#include <stddef.h> | |||
#include <stdint.h> | |||
#include "sp800-185.h" | |||
static size_t left_encode(uint8_t *encbuf, size_t value) { | |||
size_t n, i, v; | |||
for (v = value, n = 0; v && (n < sizeof(size_t)); n++, v >>= 8) { | |||
; /* empty */ | |||
} | |||
if (n == 0) { | |||
n = 1; | |||
} | |||
for (i = 1; i <= n; i++) { | |||
encbuf[i] = (uint8_t)(value >> (8 * (n-i))); | |||
} | |||
encbuf[0] = (uint8_t)n; | |||
return n + 1; | |||
} | |||
void cshake128_inc_init(shake128incctx *state, const uint8_t *name, size_t namelen, const uint8_t *cstm, size_t cstmlen) { | |||
uint8_t encbuf[sizeof(size_t)+1]; | |||
shake128_inc_init(state); | |||
shake128_inc_absorb(state, encbuf, left_encode(encbuf, SHAKE128_RATE)); | |||
shake128_inc_absorb(state, encbuf, left_encode(encbuf, namelen * 8)); | |||
shake128_inc_absorb(state, name, namelen); | |||
shake128_inc_absorb(state, encbuf, left_encode(encbuf, cstmlen * 8)); | |||
shake128_inc_absorb(state, cstm, cstmlen); | |||
if (state->ctx[25] != 0) { | |||
state->ctx[25] = SHAKE128_RATE - 1; | |||
encbuf[0] = 0; | |||
shake128_inc_absorb(state, encbuf, 1); | |||
} | |||
} | |||
void cshake128_inc_absorb(shake128incctx *state, const uint8_t *input, size_t inlen) { | |||
shake128_inc_absorb(state, input, inlen); | |||
} | |||
void cshake128_inc_finalize(shake128incctx *state) { | |||
state->ctx[state->ctx[25] >> 3] ^= (uint64_t)0x04 << (8 * (state->ctx[25] & 0x07)); | |||
state->ctx[(SHAKE128_RATE - 1) >> 3] ^= (uint64_t)128 << (8 * ((SHAKE128_RATE - 1) & 0x07)); | |||
state->ctx[25] = 0; | |||
} | |||
void cshake128_inc_squeeze(uint8_t *output, size_t outlen, shake128incctx *state) { | |||
shake128_inc_squeeze(output, outlen, state); | |||
} | |||
void cshake256_inc_init(shake256incctx *state, const uint8_t *name, size_t namelen, const uint8_t *cstm, size_t cstmlen) { | |||
uint8_t encbuf[sizeof(size_t)+1]; | |||
shake256_inc_init(state); | |||
shake256_inc_absorb(state, encbuf, left_encode(encbuf, SHAKE256_RATE)); | |||
shake256_inc_absorb(state, encbuf, left_encode(encbuf, namelen * 8)); | |||
shake256_inc_absorb(state, name, namelen); | |||
shake256_inc_absorb(state, encbuf, left_encode(encbuf, cstmlen * 8)); | |||
shake256_inc_absorb(state, cstm, cstmlen); | |||
if (state->ctx[25] != 0) { | |||
state->ctx[25] = SHAKE256_RATE - 1; | |||
encbuf[0] = 0; | |||
shake256_inc_absorb(state, encbuf, 1); | |||
} | |||
} | |||
void cshake256_inc_absorb(shake256incctx *state, const uint8_t *input, size_t inlen) { | |||
shake256_inc_absorb(state, input, inlen); | |||
} | |||
void cshake256_inc_finalize(shake256incctx *state) { | |||
state->ctx[state->ctx[25] >> 3] ^= (uint64_t)0x04 << (8 * (state->ctx[25] & 0x07)); | |||
state->ctx[(SHAKE256_RATE - 1) >> 3] ^= (uint64_t)128 << (8 * ((SHAKE256_RATE - 1) & 0x07)); | |||
state->ctx[25] = 0; | |||
} | |||
void cshake256_inc_squeeze(uint8_t *output, size_t outlen, shake256incctx *state) { | |||
shake256_inc_squeeze(output, outlen, state); | |||
} | |||
/************************************************* | |||
* Name: cshake128 | |||
* | |||
* Description: cSHAKE128 XOF with non-incremental API | |||
* | |||
* Arguments: - uint8_t *output: pointer to output | |||
* - size_t outlen: requested output length in bytes | |||
* - const uint8_t *name: pointer to function-name string | |||
* - size_t namelen: length of function-name string in bytes | |||
* - const uint8_t *cstm: pointer to non-empty customization string | |||
* - size_t cstmlen: length of customization string in bytes | |||
* - const uint8_t *input: pointer to input | |||
* - size_t inlen: length of input in bytes | |||
**************************************************/ | |||
void cshake128(uint8_t *output, size_t outlen, | |||
const uint8_t *name, size_t namelen, | |||
const uint8_t *cstm, size_t cstmlen, | |||
const uint8_t *input, size_t inlen) { | |||
shake128incctx state; | |||
cshake128_inc_init(&state, name, namelen, cstm, cstmlen); | |||
cshake128_inc_absorb(&state, input, inlen); | |||
cshake128_inc_finalize(&state); | |||
cshake128_inc_squeeze(output, outlen, &state); | |||
} | |||
/************************************************* | |||
* Name: cshake256 | |||
* | |||
* Description: cSHAKE256 XOF with non-incremental API | |||
* | |||
* Arguments: - uint8_t *output: pointer to output | |||
* - size_t outlen: requested output length in bytes | |||
* - const uint8_t *name: pointer to function-name string | |||
* - size_t namelen: length of function-name string in bytes | |||
* - const uint8_t *cstm: pointer to non-empty customization string | |||
* - size_t cstmlen: length of customization string in bytes | |||
* - const uint8_t *input: pointer to input | |||
* - size_t inlen: length of input in bytes | |||
**************************************************/ | |||
void cshake256(uint8_t *output, size_t outlen, | |||
const uint8_t *name, size_t namelen, | |||
const uint8_t *cstm, size_t cstmlen, | |||
const uint8_t *input, size_t inlen) { | |||
shake256incctx state; | |||
cshake256_inc_init(&state, name, namelen, cstm, cstmlen); | |||
cshake256_inc_absorb(&state, input, inlen); | |||
cshake256_inc_finalize(&state); | |||
cshake256_inc_squeeze(output, outlen, &state); | |||
} |
@@ -0,0 +1,23 @@ | |||
#ifndef SP800_185_H | |||
#define SP800_185_H | |||
#include <stddef.h> | |||
#include <stdint.h> | |||
#include "fips202.h" | |||
void cshake128_inc_init(shake128incctx *state, const uint8_t *name, size_t namelen, const uint8_t *cstm, size_t cstmlen); | |||
void cshake128_inc_absorb(shake128incctx *state, const uint8_t *input, size_t inlen); | |||
void cshake128_inc_finalize(shake128incctx *state); | |||
void cshake128_inc_squeeze(uint8_t *output, size_t outlen, shake128incctx *state); | |||
void cshake128(uint8_t *output, size_t outlen, const uint8_t *name, size_t namelen, const uint8_t *cstm, size_t cstmlen, const uint8_t *input, size_t inlen); | |||
void cshake256_inc_init(shake256incctx *state, const uint8_t *name, size_t namelen, const uint8_t *cstm, size_t cstmlen); | |||
void cshake256_inc_absorb(shake256incctx *state, const uint8_t *input, size_t inlen); | |||
void cshake256_inc_finalize(shake256incctx *state); | |||
void cshake256_inc_squeeze(uint8_t *output, size_t outlen, shake256incctx *state); | |||
void cshake256(uint8_t *output, size_t outlen, const uint8_t *name, size_t namelen, const uint8_t* cstm, size_t cstmlen, const uint8_t *input, size_t inlen); | |||
#endif |
@@ -10,7 +10,7 @@ SCHEME_UPPERCASE=$(shell echo $(SCHEME) | tr a-z A-Z | sed 's/-//g') | |||
IMPLEMENTATION_UPPERCASE=$(shell echo $(IMPLEMENTATION) | tr a-z A-Z | sed 's/-//g') | |||
COMMON_DIR=../common | |||
COMMON_FILES=$(COMMON_DIR)/aes.c $(COMMON_DIR)/sha2.c $(COMMON_DIR)/fips202.c | |||
COMMON_FILES=$(COMMON_DIR)/aes.c $(COMMON_DIR)/sha2.c $(COMMON_DIR)/fips202.c $(COMMON_DIR)/sp800-185.c | |||
COMMON_HEADERS=$(COMMON_DIR)/*.h | |||
DEST_DIR=../bin | |||
@@ -56,6 +56,9 @@ $(DEST_DIR)/test_common_fips202: common/fips202.c $(COMMON_FILES) | |||
$(DEST_DIR)/test_common_sha2: common/sha2.c $(COMMON_FILES) | |||
mkdir -p $(DEST_DIR) | |||
$(CC) $(CFLAGS) $< $(COMMON_FILES) -o $@ | |||
$(DEST_DIR)/test_common_sp800-185: common/sp800-185.c $(COMMON_FILES) | |||
mkdir -p $(DEST_DIR) | |||
$(CC) $(CFLAGS) $< $(COMMON_FILES) -o $@ | |||
$(DEST_DIR)/functest_$(SCHEME)_$(IMPLEMENTATION): build-scheme crypto_$(TYPE)/functest.c $(COMMON_FILES) $(COMMON_DIR)/randombytes.c $(COMMON_HEADERS) | |||
mkdir -p $(DEST_DIR) | |||
@@ -82,6 +85,7 @@ clean: | |||
$(RM) $(DEST_DIR)/test_aes | |||
$(RM) $(DEST_DIR)/test_fips202 | |||
$(RM) $(DEST_DIR)/test_sha2 | |||
$(RM) $(DEST_DIR)/test_sp800-185 | |||
.PHONY: distclean | |||
distclean: | |||
@@ -12,8 +12,8 @@ IMPLEMENTATION_UPPERCASE=CLEAN | |||
SCHEME_DIR=..\crypto_$(TYPE)\$(SCHEME)\$(IMPLEMENTATION) | |||
COMMON_DIR=..\common | |||
COMMON_OBJECTS=$(COMMON_DIR)\aes.obj $(COMMON_DIR)\fips202.obj $(COMMON_DIR)\sha2.obj | |||
COMMON_OBJECTS_NOPATH=aes.obj fips202.obj sha2.obj | |||
COMMON_OBJECTS=$(COMMON_DIR)\aes.obj $(COMMON_DIR)\fips202.obj $(COMMON_DIR)\sha2.obj $(COMMON_DIR)\sp800-185.obj | |||
COMMON_OBJECTS_NOPATH=aes.obj fips202.obj sha2.obj sp800-185.obj | |||
DEST_DIR=..\bin | |||
@@ -0,0 +1,146 @@ | |||
#include <stdint.h> | |||
#include <stdio.h> | |||
#include <string.h> | |||
#include "sp800-185.h" | |||
const unsigned char name[] = ""; | |||
const unsigned char customization[] = "Email Signature"; | |||
const unsigned char output1[32] = { | |||
0xC1, 0xC3, 0x69, 0x25, 0xB6, 0x40, 0x9A, 0x04, 0xF1, 0xB5, 0x04, 0xFC, 0xBC, 0xA9, 0xD8, 0x2B, | |||
0x40, 0x17, 0x27, 0x7C, 0xB5, 0xED, 0x2B, 0x20, 0x65, 0xFC, 0x1D, 0x38, 0x14, 0xD5, 0xAA, 0xF5 | |||
}; | |||
const unsigned char output2[32] = { | |||
0xC5, 0x22, 0x1D, 0x50, 0xE4, 0xF8, 0x22, 0xD9, 0x6A, 0x2E, 0x88, 0x81, 0xA9, 0x61, 0x42, 0x0F, | |||
0x29, 0x4B, 0x7B, 0x24, 0xFE, 0x3D, 0x20, 0x94, 0xBA, 0xED, 0x2C, 0x65, 0x24, 0xCC, 0x16, 0x6B | |||
}; | |||
const unsigned char output3[64] = { | |||
0xD0, 0x08, 0x82, 0x8E, 0x2B, 0x80, 0xAC, 0x9D, 0x22, 0x18, 0xFF, 0xEE, 0x1D, 0x07, 0x0C, 0x48, | |||
0xB8, 0xE4, 0xC8, 0x7B, 0xFF, 0x32, 0xC9, 0x69, 0x9D, 0x5B, 0x68, 0x96, 0xEE, 0xE0, 0xED, 0xD1, | |||
0x64, 0x02, 0x0E, 0x2B, 0xE0, 0x56, 0x08, 0x58, 0xD9, 0xC0, 0x0C, 0x03, 0x7E, 0x34, 0xA9, 0x69, | |||
0x37, 0xC5, 0x61, 0xA7, 0x4C, 0x41, 0x2B, 0xB4, 0xC7, 0x46, 0x46, 0x95, 0x27, 0x28, 0x1C, 0x8C | |||
}; | |||
const unsigned char output4[64] = { | |||
0x07, 0xDC, 0x27, 0xB1, 0x1E, 0x51, 0xFB, 0xAC, 0x75, 0xBC, 0x7B, 0x3C, 0x1D, 0x98, 0x3E, 0x8B, | |||
0x4B, 0x85, 0xFB, 0x1D, 0xEF, 0xAF, 0x21, 0x89, 0x12, 0xAC, 0x86, 0x43, 0x02, 0x73, 0x09, 0x17, | |||
0x27, 0xF4, 0x2B, 0x17, 0xED, 0x1D, 0xF6, 0x3E, 0x8E, 0xC1, 0x18, 0xF0, 0x4B, 0x23, 0x63, 0x3C, | |||
0x1D, 0xFB, 0x15, 0x74, 0xC8, 0xFB, 0x55, 0xCB, 0x45, 0xDA, 0x8E, 0x25, 0xAF, 0xB0, 0x92, 0xBB | |||
}; | |||
static int test_cshake128(void) { | |||
unsigned char input[200]; | |||
unsigned char output[32]; | |||
int i; | |||
int returncode = 0; | |||
size_t namelen = strlen((const char *)name); | |||
size_t cstmlen = strlen((const char *)customization); | |||
for (i = 0; i < 4; i++) { | |||
input[i] = i; | |||
} | |||
cshake128(output, 32, name, namelen, customization, cstmlen, input, 4); | |||
if (memcmp(output1, output, 32) != 0) { | |||
puts("ERROR shake128 did not match test vector 1."); | |||
printf(" Expected: "); | |||
for (i = 0; i < 32; i++) { | |||
printf("%02X", output1[i]); | |||
} | |||
puts(""); | |||
printf(" Received: "); | |||
for (i = 0; i < 32; i++) { | |||
printf("%02X", output[i]); | |||
} | |||
puts(""); | |||
returncode = 1; | |||
} | |||
for (i = 0; i < 200; i++) { | |||
input[i] = i; | |||
} | |||
cshake128(output, 32, name, namelen, customization, cstmlen, input, 200); | |||
if (memcmp(output2, output, 32) != 0) { | |||
puts("ERROR shake128 did not match test vector 2."); | |||
printf(" Expected: "); | |||
for (i = 0; i < 32; i++) { | |||
printf("%02X", output2[i]); | |||
} | |||
puts(""); | |||
printf(" Received: "); | |||
for (i = 0; i < 32; i++) { | |||
printf("%02X", output[i]); | |||
} | |||
puts(""); | |||
returncode = 1; | |||
} | |||
return returncode; | |||
} | |||
static int test_cshake256(void) { | |||
unsigned char input[200]; | |||
unsigned char output[64]; | |||
int i; | |||
int returncode = 0; | |||
size_t namelen = strlen((const char *)name); | |||
size_t cstmlen = strlen((const char *)customization); | |||
for (i = 0; i < 4; i++) { | |||
input[i] = i; | |||
} | |||
cshake256(output, 64, name, namelen, customization, cstmlen, input, 4); | |||
if (memcmp(output3, output, 64) != 0) { | |||
puts("ERROR shake256 did not match test vector 3."); | |||
printf(" Expected: "); | |||
for (i = 0; i < 64; i++) { | |||
printf("%02X", output3[i]); | |||
} | |||
puts(""); | |||
printf(" Received: "); | |||
for (i = 0; i < 64; i++) { | |||
printf("%02X", output[i]); | |||
} | |||
puts(""); | |||
returncode = 1; | |||
} | |||
for (i = 0; i < 200; i++) { | |||
input[i] = i; | |||
} | |||
cshake256(output, 64, name, namelen, customization, cstmlen, input, 200); | |||
if (memcmp(output4, output, 64) != 0) { | |||
puts("ERROR shake256 did not match test vector 4."); | |||
printf(" Expected: "); | |||
for (i = 0; i < 64; i++) { | |||
printf("%02X", output4[i]); | |||
} | |||
puts(""); | |||
printf(" Received: "); | |||
for (i = 0; i < 64; i++) { | |||
printf("%02X", output[i]); | |||
} | |||
puts(""); | |||
returncode = 1; | |||
} | |||
return returncode; | |||
} | |||
int main(void) { | |||
int result = 0; | |||
result += test_cshake128(); | |||
result += test_cshake256(); | |||
if (result != 0) { | |||
puts("Errors occurred"); | |||
} | |||
return result; | |||
} |