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Commit 9cd651e3 by Wentao Zhang Committed by Sebastian Renner
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knot

parent b95155c4
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knot/Implementations/crypto_aead/knot128v1/armcortexm_7/api.h 0 → 100644
#define CRYPTO_KEYBYTES 16 //
#define CRYPTO_NSECBYTES 0
#define CRYPTO_NPUBBYTES 16
#define CRYPTO_ABYTES 16
#define CRYPTO_NOOVERLAP 1
knot/Implementations/crypto_aead/knot128v1/armcortexm_7/auxFormat.h 0 → 100644
#include"api.h"
#include <string.h>
#define U32BIG(x) (x)
typedef unsigned char u8;
typedef unsigned int u32;
typedef unsigned long long u64;
void P256(unsigned int *s, unsigned char *rc, unsigned char rounds);
void packFormat(u32 * out, const u8 * in);
void unpackFormat(u8 * out, u32 * in);
knot/Implementations/crypto_aead/knot128v1/armcortexm_7/encrypt.c 0 → 100644
#include"auxFormat.h"
//#define RATE (64 / 8)
#define RATE 8
/*
#define PR0_ROUNDS 25
#define PR_ROUNDS 13
#define PRF_ROUNDS 15
* */
#define PR0_ROUNDS 12
#define PR_ROUNDS 6
#define PRF_ROUNDS 7
unsigned char constant6Format[52] = { 0x01, 0x10, 0x02, 0x20, 0x04, 0x41, 0x11,
0x12, 0x22, 0x24, 0x45, 0x50, 0x03, 0x30, 0x06, 0x61, 0x15, 0x53, 0x33,
0x36, 0x67, 0x74, 0x46, 0x60, 0x05, 0x51, 0x13, 0x32, 0x26, 0x65, 0x54,
0x42, 0x21, 0x14, 0x43, 0x31, 0x16, 0x63, 0x35, 0x57, 0x72, 0x27, 0x75,
0x56, 0x62, 0x25, 0x55, 0x52, 0x23, 0x34, 0x47, 0x70, };
int crypto_aead_encrypt(unsigned char *c, unsigned long long *clen,
const unsigned char *m, unsigned long long mlen,
const unsigned char *ad, unsigned long long adlen,
const unsigned char *nsec, const unsigned char *npub,
const unsigned char *k) {
u32 s[8] = { 0 };
u32 dataFormat[2] = { 0 };
u8 tempData[16];
//initialization
*clen = mlen + CRYPTO_ABYTES;
packFormat(s, npub);
packFormat((s + 2), (npub + 8));
packFormat((s + 4), k);
packFormat((s + 6), (k + 8));
P256(s, constant6Format, PR0_ROUNDS);
// process associated data
if (adlen) {
while (adlen >= RATE) {
packFormat(dataFormat, ad);
s[0] ^= dataFormat[0];
s[1] ^= dataFormat[1];
P256(s, constant6Format, PR_ROUNDS);
adlen -= RATE;
ad += RATE;
}
memset(tempData, 0, sizeof(tempData));
memcpy(tempData, ad, adlen * sizeof(unsigned char));
tempData[adlen] = 0x01;
packFormat(dataFormat, tempData);
s[0] ^= dataFormat[0];
s[1] ^= dataFormat[1];
P256(s, constant6Format, PR_ROUNDS);
}
s[6] ^= 0x80000000;
//Encryption:
if (mlen) {
while (mlen >= RATE) {
packFormat(dataFormat, m);
s[0] ^= dataFormat[0];
s[1] ^= dataFormat[1];
unpackFormat(c, s);
P256(s, constant6Format, PR_ROUNDS);
mlen -= RATE;
m += RATE;
c += RATE;
}
memset(tempData, 0, sizeof(tempData));
memcpy(tempData, m, mlen * sizeof(unsigned char));
tempData[mlen] = 0x01;
packFormat(dataFormat, tempData);
s[0] ^= dataFormat[0];
s[1] ^= dataFormat[1];
unpackFormat(tempData, s);
memcpy(c, tempData, mlen * sizeof(unsigned char));
c += mlen;
}
// finalization
P256(s, constant6Format, PRF_ROUNDS);
unpackFormat(tempData, s);
unpackFormat((tempData + 8), (s + 2));
memcpy(c, tempData, CRYPTO_ABYTES);
return 0;
}
int crypto_aead_decrypt(unsigned char *m, unsigned long long *mlen,
unsigned char *nsec, const unsigned char *c, unsigned long long clen,
const unsigned char *ad, unsigned long long adlen,
const unsigned char *npub, const unsigned char *k) {
u32 s[8] = { 0 };
u32 dataFormat[4] = { 0 };
u32 dataFormat_1[2] = { 0 };
u8 tempU8[32] = { 0 };
u8 tempData[16];
*mlen = clen - CRYPTO_ABYTES;
if (clen < CRYPTO_ABYTES)
return -1;
//initialization
packFormat(s, npub);
packFormat((s + 2), (npub + 8));
packFormat((s + 4), k);
packFormat((s + 6), (k + 8));
P256(s, constant6Format, PR0_ROUNDS);
// process associated data
if (adlen) {
while (adlen >= RATE) {
packFormat(dataFormat, ad);
s[0] ^= dataFormat[0];
s[1] ^= dataFormat[1];
P256(s, constant6Format, PR_ROUNDS);
adlen -= RATE;
ad += RATE;
}
memset(tempData, 0, sizeof(tempData));
memcpy(tempData, ad, adlen * sizeof(unsigned char));
tempData[adlen] = 0x01;
packFormat(dataFormat, tempData);
s[0] ^= dataFormat[0];
s[1] ^= dataFormat[1];
P256(s, constant6Format, PR_ROUNDS);
}
s[6] ^= 0x80000000;
// process c
clen = clen - CRYPTO_KEYBYTES;
if (clen) {
while (clen >= RATE) {
packFormat(dataFormat, c);
dataFormat_1[0] = s[0] ^ dataFormat[0];
dataFormat_1[1] = s[1] ^ dataFormat[1];
unpackFormat(m, dataFormat_1);
s[0] = dataFormat[0];
s[1] = dataFormat[1];
P256(s, constant6Format, PR_ROUNDS);
clen -= RATE;
m += RATE;
c += RATE;
}
unpackFormat(tempU8, s);
memset(tempData, 0, sizeof(tempData));
memcpy(tempData, c, clen * sizeof(unsigned char));
tempData[clen] = 0x01;
U32BIG(((u32*)tempU8)[0]) ^= U32BIG(
((u32* )tempData)[0]);
U32BIG(((u32*)tempU8)[1]) ^= U32BIG(
((u32* )tempData)[1]);
memcpy(m, tempU8, clen * sizeof(unsigned char));
memcpy(tempU8, tempData, clen * sizeof(unsigned char));
s[0] ^= dataFormat[0];
s[1] ^= dataFormat[1];
c += clen;
packFormat(s, tempU8);
}
// finalization
P256(s, constant6Format, PRF_ROUNDS);
unpackFormat(tempData, s);
unpackFormat((tempData + 8), (s + 2));
if (memcmp((void*) tempData, (void*) c, CRYPTO_ABYTES)) {
memset(m, 0, sizeof(unsigned char) * (*mlen));
*mlen = 0;
return -1;
}
return 0;
}
knot/Implementations/crypto_aead/knot128v1/opt_1/api.h 0 → 100644
#define CRYPTO_KEYBYTES 16
#define CRYPTO_NSECBYTES 0
#define CRYPTO_NPUBBYTES 16
#define CRYPTO_ABYTES 16
#define CRYPTO_NOOVERLAP 1
knot/Implementations/crypto_aead/knot128v1/opt_1/encrypt.c 0 → 100644
#include <stdio.h>
#include "api.h"
#include <string.h>
typedef unsigned long long u64;
typedef unsigned char u8;
typedef long long i64;
#define RATE 8
#define PR0_ROUNDS 52
#define PR_ROUNDS 28
#define PRF_ROUNDS 32
#define LOTR64(x,n) (((x)<<(n))|((x)>>(64-(n))))
#define U64BIG(x) (x)
static const u8 constant6[52] = { 0x01, 0x02, 0x04, 0x08, 0x10, 0x21, 0x03,
0x06, 0x0c, 0x18, 0x31, 0x22, 0x05, 0x0a, 0x14, 0x29, 0x13, 0x27, 0x0f,
0x1e, 0x3d, 0x3a, 0x34, 0x28, 0x11, 0x23, 0x07, 0x0e, 0x1c, 0x39, 0x32,
0x24, 0x09, 0x12, 0x25, 0x0b, 0x16, 0x2d, 0x1b, 0x37, 0x2e, 0x1d, 0x3b,
0x36, 0x2c, 0x19, 0x33, 0x26, 0x0d, 0x1a, 0x35, 0x2a };
#define sbox(a, b, c, d, f, g, h) \
{ \
t1 = ~a; t2 = b & t1;t3 = c ^ t2; h = d ^ t3; t5 = b | c; t6 = d ^ t1; g = t5 ^ t6; t8 = b ^ d; t9 = t3 & t6; a = t8 ^ t9; t11 = g & t8; f = t3 ^ t11; \
}
#define ROUND256(i) {\
s[0]^=constant6[i];\
sbox(s[0], s[1], s[2], s[3], x5, x6, x7);\
s[1]=LOTR64(x5,1);\
s[2]=LOTR64(x6,8);\
s[3]=LOTR64(x7,25);\
}
int crypto_aead_encrypt(unsigned char *c, unsigned long long *clen,
const unsigned char *m, unsigned long long mlen,
const unsigned char *ad, unsigned long long adlen,
const unsigned char *nsec, const unsigned char *npub,
const unsigned char *k) {
*clen = mlen + CRYPTO_ABYTES;
u64 x7, x6, x5,i;
u64 t1, t2, t3, t5, t6, t8, t9, t11;
u8 tempData[8] = { 0 };
u64 s[4] = { 0 };
// initialization
memcpy(s, npub, CRYPTO_NPUBBYTES);
memcpy(s + 2, k, CRYPTO_KEYBYTES);
for (i = 0; i < PR0_ROUNDS; i++) {
ROUND256(i);
}
// process associated data
if (adlen) {
while (adlen >= RATE) {
s[0] ^= U64BIG(((u64*)ad)[0]);
for (i = 0; i < PR_ROUNDS; i++) {
ROUND256(i);
}
adlen -= RATE;
ad += RATE;
}
memset(tempData, 0, RATE);
memcpy(tempData, ad, adlen );
tempData[adlen] = 0x01;
s[0] ^= U64BIG(((u64*)tempData)[0]);
for (i = 0; i < PR_ROUNDS; i++) {
ROUND256(i);
}
}
s[3] ^= 0x8000000000000000;
// process plaintext
if (mlen) {
while (mlen >= RATE) {
s[0] ^= U64BIG(*(u64* )m);
memcpy(c, s, RATE );
for (i = 0; i < PR_ROUNDS; i++) {
ROUND256(i);
}
mlen -= RATE;
m += RATE;
c += RATE;
}
memset(tempData, 0, RATE);
memcpy(tempData, m, mlen);
tempData[mlen] = 0x01;
s[0] ^= U64BIG(((u64*)tempData)[0]);
memcpy(c, s, mlen );
c += mlen;
}
// finalization
for (i = 0; i < PRF_ROUNDS; i++) {
ROUND256(i);
}
// return tag
memcpy(c, s, CRYPTO_ABYTES);
return 0;
}
int crypto_aead_decrypt(unsigned char *m, unsigned long long *mlen,
unsigned char *nsec, const unsigned char *c, unsigned long long clen,
const unsigned char *ad, unsigned long long adlen,
const unsigned char *npub, const unsigned char *k) {
if (clen < CRYPTO_KEYBYTES)
return -1;
*mlen = clen - CRYPTO_KEYBYTES;
u64 x7, x6, x5, i;
u64 t1, t2, t3, t5, t6, t8, t9, t11;
u8 tempData[8] = { 0 };
u64 s[4] = { 0 };
// initialization
memcpy(s, npub, CRYPTO_NPUBBYTES);
memcpy(s + 2, k, CRYPTO_KEYBYTES);
for (i = 0; i < PR0_ROUNDS; i++) {
ROUND256(i);
}
// process associated data
if (adlen) {
while (adlen >= RATE) {
s[0] ^= U64BIG(((u64*)ad)[0]);
for (i = 0; i < PR_ROUNDS; i++) {
ROUND256(i);
}
adlen -= RATE;
ad += RATE;
}
memset(tempData, 0, RATE);
memcpy(tempData, ad, adlen );
tempData[adlen] = 0x01;
s[0] ^= U64BIG(((u64*)tempData)[0]);
for (i = 0; i < PR_ROUNDS; i++) {
ROUND256(i);
}
}
s[3] ^= 0x8000000000000000;
clen -= CRYPTO_ABYTES;
if (clen) {
while (clen >= RATE) {
U64BIG(*(u64*)(m)) = s[0] ^ U64BIG(*(u64*)(c));
memcpy(s, c, RATE );
for (i = 0; i < PR_ROUNDS; i++) {
ROUND256(i);
}
clen -= RATE;
m += RATE;
c += RATE;
}
memset(tempData, 0, RATE);
memcpy(tempData, c, clen );
tempData[clen] = 0x01;
s[0] ^= U64BIG(*(u64*)(tempData));
memcpy(m, s, clen );
memcpy(s, c, clen );
c += clen;
}
// finalization
for (i = 0; i < PRF_ROUNDS; i++) {
ROUND256(i);
}
if (memcmp((void*)s, (void*)c, CRYPTO_ABYTES)) {
memset(m, 0, (*mlen));
*mlen = 0;
return -1;
}
return 0;
}
knot/Implementations/crypto_aead/knot128v2/opt_1/api.h 0 → 100644
#define CRYPTO_KEYBYTES 16
#define CRYPTO_NSECBYTES 0
#define CRYPTO_NPUBBYTES 16
#define CRYPTO_ABYTES 16
#define CRYPTO_NOOVERLAP 1
knot/Implementations/crypto_aead/knot128v2/opt_1/encrypt.c 0 → 100644
#include"api.h"
typedef unsigned char u8;
typedef unsigned long long u64;
typedef unsigned int u32;
#define PR0_ROUNDS 76
#define PR_ROUNDS 28
#define PRF_ROUNDS 32
#define RATE 24
#define sbox(a, b, c, d, f, g, h) \
{ \
t1 = ~a; t2 = b & t1;t3 = c ^ t2; h = d ^ t3; t5 = b | c; t6 = d ^ t1; g = t5 ^ t6; t8 = b ^ d; t9 = t3 & t6; a = t8 ^ t9; t11 = g & t8; f = t3 ^ t11; \
}
#define ROTR961(a,b,n) (((a)<<(n))|((b)>>(64-n)))
#define ROTR962(a,b,n) (((b)<<(n))|((a)>>(32-n)))
#define ROTR96MORE321(a,b,n) ((b<<(n-32))>>32)
#define ROTR96MORE322(a,b,n) (b<<n|(u64)a<<(n-32)|b>>(96-n))
#define U32BIG(x) (x)
#define U64BIG(x) (x)
u8 constant7[76] = { 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x41, 0x03, 0x06, 0x0c,
0x18, 0x30, 0x61, 0x42, 0x05, 0x0a, 0x14, 0x28, 0x51, 0x23, 0x47, 0x0f,
0x1e, 0x3c, 0x79, 0x72, 0x64, 0x48, 0x11, 0x22, 0x45, 0x0b, 0x16, 0x2c,
0x59, 0x33, 0x67, 0x4e, 0x1d, 0x3a, 0x75, 0x6a, 0x54, 0x29, 0x53, 0x27,
0x4f, 0x1f, 0x3e, 0x7d, 0x7a, 0x74, 0x68, 0x50, 0x21, 0x43, 0x07, 0x0e,
0x1c, 0x38, 0x71, 0x62, 0x44, 0x09, 0x12, 0x24, 0x49, 0x13, 0x26, 0x4d,
0x1b, 0x36, 0x6d, 0x5a, 0x35, 0x6b };
#define ROUND384(i){\
x00 ^= constant7[i];\
sbox(x00, x10, x20, x30, x50, x60, x70);\
sbox(x01, x11, x21, x31, x51, x61, x71);\
x11 = ROTR961(x51, x50, 1);\
x10 = ROTR962(x51, x50, 1);\
x21 = ROTR961(x61, x60, 8);\
x20 = ROTR962(x61, x60, 8);\
x31 = ROTR96MORE321(x71, x70, 55);\
x30 = ROTR96MORE322(x71, x70, 55);\
}
int crypto_aead_encrypt(unsigned char *c, unsigned long long *clen,
const unsigned char *m, unsigned long long mlen,
const unsigned char *ad, unsigned long long adlen,
const unsigned char *nsec, const unsigned char *npub,
const unsigned char *k) {
u64 i;
u64 t1, t2, t3, t5, t6, t8, t9, t11;
u64 x30 = 0, x20 = 0, x10 = 0, x00 = 0;
u32 x31 = 0, x21 = 0, x11 = 0, x01 = 0;
u8 tempData[24] = { 0 };
u8 tempData1[24] = { 0 };
u64 x50, x60, x70;
u32 x51, x61, x71;
*clen = mlen + CRYPTO_KEYBYTES;
// initialization
x00 = U64BIG(*(u64*)(npub));
x01 = U32BIG(*(u32*)(npub + 8));
x10 = ((u64)U32BIG(*(u32*)(k)) << 32)
| ((u64)U32BIG(*(u32*)(npub + 12)));
x11 = U32BIG(*(u32*)(k + 4));
x20 = U64BIG(*(u64*)(k + 8));
x30 = 0;
x31 = 0x80000000;
for (i = 0; i < PR0_ROUNDS; i++) {
ROUND384(i);
}
// process associated data
if (adlen) {
while (adlen >= RATE) {
x00 ^= U64BIG(*(u64*)(ad));
x01 ^= U32BIG(*(u32*)(ad + 8));
x10 ^= ((u64)U32BIG(*(u32*)(ad + 16)) << 32) | ((u64)U32BIG(*(u32*)(ad + 12)));
x11 ^= U32BIG(*(u32*)(ad + 20));
for (i = 0; i < PR_ROUNDS; i++) {
ROUND384(i);
}
adlen -= RATE;
ad += RATE;
}
memset(tempData, 0, RATE);
memcpy(tempData, ad, adlen);
tempData[adlen] = 0x01;
x00 ^= U64BIG(*(u64*)(tempData));
x01 ^= U32BIG(*(u32*)(tempData + 8));
x10 ^= ((u64)U32BIG(*(u32*)(tempData + 16)) << 32) | ((u64)U32BIG(*(u32*)(tempData + 12)));
x11 ^= U32BIG(*(u32*)(tempData + 20));
for (i = 0; i < PR_ROUNDS; i++) {
ROUND384(i);
}
}
x31 ^= 0x80000000;
// process plaintext
if (mlen) {
while (mlen >= RATE) {
x00 ^= U64BIG(*(u64*)(m));
x01 ^= U32BIG(*(u32*)(m + 8));
x10 ^= ((u64)U32BIG(*(u32*)(m + 16)) << 32) | ((u64)U32BIG(*(u32*)(m + 12)));
x11 ^= U32BIG(*(u32*)(m + 20));
*(u64*)c = U64BIG(x00);
*(u32*)(c + 8) = U32BIG(x01);
*(u32*)(c + 12) = U32BIG(x10);
*(u32*)(c + 16) = U32BIG(x10 >> 32);
*(u32*)(c + 20) = U32BIG(x11);
for (i = 0; i < PR_ROUNDS; i++) {
ROUND384(i);
}
mlen -= RATE;
m += RATE;
c += RATE;
}
memset(tempData, 0, RATE);
memcpy(tempData, m, mlen);
tempData[mlen] = 0x01;
x00 ^= U64BIG(*(u64*)(tempData));
x01 ^= U32BIG(*(u32*)(tempData + 8));
x10 ^= ((u64)U32BIG(*(u32*)(tempData + 16)) << 32) | ((u64)U32BIG(*(u32*)(tempData + 12)));
x11 ^= U32BIG(*(u32*)(tempData + 20));
*(u64*)tempData1 = U64BIG(x00);
*(u32*)(tempData1 + 8) = U32BIG(x01);
*(u32*)(tempData1 + 12) = U32BIG(x10);
*(u32*)(tempData1 + 16) = U32BIG(x10 >> 32);
*(u32*)(tempData1 + 20) = U32BIG(x11);
memcpy(c, tempData1, mlen * sizeof(unsigned char));
c += mlen;
}
// finalization
for (i = 0; i < PRF_ROUNDS; i++) {
ROUND384(i);
}
// return tag
*(u64*)tempData = U64BIG(x00);
*(u32*)(tempData + 8) = U32BIG(x01);
*(u32*)(tempData + 12) = U32BIG(x10);
memcpy(c, tempData, CRYPTO_ABYTES);
return 0;
}
int crypto_aead_decrypt(unsigned char *m, unsigned long long *mlen,
unsigned char *nsec, const unsigned char *c, unsigned long long clen,
const unsigned char *ad, unsigned long long adlen,
const unsigned char *npub, const unsigned char *k) {
*mlen = clen - CRYPTO_ABYTES;
if (clen < CRYPTO_ABYTES)
return -1;
u64 i;
u64 t1, t2, t3, t5, t6, t8, t9, t11;
u64 x30 = 0, x20 = 0, x10 = 0, x00 = 0;
u32 x31 = 0, x21 = 0, x11 = 0, x01 = 0;
u8 tempData[24] = { 0 };
u8 tempData1[24] = { 0 };
u64 x50, x60, x70;
u32 x51, x61, x71;
// initialization
x00 = U64BIG(*(u64*)(npub));
x01 = U32BIG(*(u32*)(npub + 8));
x10 = ((u64)U32BIG(*(u32*)(k)) << 32)
| ((u64)U32BIG(*(u32*)(npub + 12)));
x11 = U32BIG(*(u32*)(k + 4));
x20 = U64BIG(*(u64*)(k + 8));
x30 = 0;
x31 = 0x80000000;
for (i = 0; i < PR0_ROUNDS; i++) {
ROUND384(i);
}
// process associated data
if (adlen) {
while (adlen >= RATE) {
x00 ^= U64BIG(*(u64*)(ad));
x01 ^= U32BIG(*(u32*)(ad + 8));
x10 ^= ((u64)U32BIG(*(u32*)(ad + 16)) << 32) | ((u64)U32BIG(*(u32*)(ad + 12)));
x11 ^= U32BIG(*(u32*)(ad + 20));
for (i = 0; i < PR_ROUNDS; i++) {
ROUND384(i);
}
adlen -= RATE;
ad += RATE;
}
memset(tempData, 0, sizeof(tempData));
memcpy(tempData, ad, adlen * sizeof(unsigned char));
tempData[adlen] = 0x01;
x00 ^= U64BIG(*(u64*)(tempData));
x01 ^= U32BIG(*(u32*)(tempData + 8));
x10 ^= ((u64)U32BIG(*(u32*)(tempData + 16)) << 32) | ((u64)U32BIG(*(u32*)(tempData + 12)));
x11 ^= U32BIG(*(u32*)(tempData + 20));
for (i = 0; i < PR_ROUNDS; i++) {
ROUND384(i);
}
}
x31 ^= 0x80000000;
// process plaintext
clen -= CRYPTO_KEYBYTES;
if (clen) {
while (clen >= RATE) {
*(u64*)(m) = U64BIG(x00) ^ (*(u64*)(c));
*(u32*)(m + 8) = U32BIG(x01) ^ (*(u32*)(c + 8));
*(u32*)(m + 12) = U32BIG(x10) ^ (*(u32*)(c + 12));
*(u32*)(m + 16) = U32BIG(x10 >> 32) ^ (*(u32*)(c + 16));
*(u32*)(m + 20) = U32BIG(x11) ^ (*(u32*)(c + 20));
x00 = U64BIG(*(u64*)(c));
x01 = U32BIG(*(u32*)(c + 8));
x10 = U64BIG(*(u64*)(c + 12));
x11 = U32BIG(*(u32*)(c + 20));
for (i = 0; i < PR_ROUNDS; i++) {
ROUND384(i);
}
clen -= RATE;
m += RATE;
c += RATE;
}
memset(tempData, 0, sizeof(tempData));
memcpy(tempData, c, clen * sizeof(unsigned char));
tempData[clen] = 0x01;
*(u64*)(tempData1) = U64BIG(x00) ^ (*(u64*)(tempData));
*(u32*)(tempData1 + 8) = U32BIG(x01) ^ (*(u32*)(tempData + 8));
//*(u64*)(tempData1 + 12) = U64BIG(x10) ^ (*(u64*)(tempData + 12));
*(u32*)(tempData1 + 12) = U32BIG(x10) ^ (*(u32*)(tempData + 12));
*(u32*)(tempData1 + 16) = U32BIG(x10 >> 32) ^ (*(u32*)(tempData + 16));
*(u32*)(tempData1 + 20) = U32BIG(x11) ^ (*(u32*)(tempData + 20));
memcpy(m, tempData1, clen * sizeof(unsigned char));
memcpy(tempData1, c, clen * sizeof(unsigned char));
x00 = U64BIG(*(u64*)(tempData1));
x01 = U32BIG(*(u32*)(tempData1 + 8));
x10 = ((u64)U32BIG(*(u32*)(tempData1 + 16)) << 32) | ((u64)U32BIG(*(u32*)(tempData1 + 12)));
x11 = U32BIG(*(u32*)(tempData1 + 20));
c += clen;
}
// finalization
for (i = 0; i < PRF_ROUNDS; i++) {
ROUND384(i);
}
// return -1 if verification fails
*(u64*)(tempData1) = U64BIG(x00);
*(u32*)(tempData1 + 8) = U32BIG(x01);
*(u32*)(tempData1 + 12) = U32BIG(x10);
if (memcmp((void*)tempData1, (void*)c, CRYPTO_ABYTES)) {
memset(m, 0, sizeof(unsigned char) * (*mlen));
*mlen = 0;
return -1;
}
return 0;
}
knot/Implementations/crypto_aead/knot128v2/opt_2/api.h 0 → 100644
#define CRYPTO_KEYBYTES 16
#define CRYPTO_NSECBYTES 0
#define CRYPTO_NPUBBYTES 16
#define CRYPTO_ABYTES 16
#define CRYPTO_NOOVERLAP 1
knot/Implementations/crypto_aead/knot128v2/opt_2/encrypt.c 0 → 100644
#include"api.h"
#include <string.h>
typedef unsigned char u8;
typedef unsigned long long u64;
typedef unsigned int u32;
#define PR0_ROUNDS 76
#define PR_ROUNDS 28
#define PRF_ROUNDS 32
#define RATE 24
#define sbox(a, b, c, d, f, g, h) \
{ \
t1 = ~a; t2 = b & t1;t3 = c ^ t2; h = d ^ t3; t5 = b | c; t6 = d ^ t1; g = t5 ^ t6; t8 = b ^ d; t9 = t3 & t6; a = t8 ^ t9; t11 = g & t8; f = t3 ^ t11; \
}
#define ROTR961(a,b,n) (((a)<<(n))|((b)>>(64-n)))
#define ROTR962(a,b,n) (((b)<<(n))|((a)>>(32-n)))
#define ROTR96MORE321(a,b,n) ((b<<(n-32))>>32)
#define ROTR96MORE322(a,b,n) (b<<n|(u64)a<<(n-32)|b>>(96-n))
#define U32BIG(x) (x)
#define U64BIG(x) (x)
u8 constant7[76] = { 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x41, 0x03, 0x06, 0x0c,
0x18, 0x30, 0x61, 0x42, 0x05, 0x0a, 0x14, 0x28, 0x51, 0x23, 0x47, 0x0f,
0x1e, 0x3c, 0x79, 0x72, 0x64, 0x48, 0x11, 0x22, 0x45, 0x0b, 0x16, 0x2c,
0x59, 0x33, 0x67, 0x4e, 0x1d, 0x3a, 0x75, 0x6a, 0x54, 0x29, 0x53, 0x27,
0x4f, 0x1f, 0x3e, 0x7d, 0x7a, 0x74, 0x68, 0x50, 0x21, 0x43, 0x07, 0x0e,
0x1c, 0x38, 0x71, 0x62, 0x44, 0x09, 0x12, 0x24, 0x49, 0x13, 0x26, 0x4d,
0x1b, 0x36, 0x6d, 0x5a, 0x35, 0x6b };
#define ROUND384(i){\
x00 ^= constant7[i];\
sbox(x00, x10, x20, x30, x50, x60, x70);\
sbox(x01, x11, x21, x31, x51, x61, x71);\
x11 = ROTR961(x51, x50, 1);\
x10 = ROTR962(x51, x50, 1);\
x21 = ROTR961(x61, x60, 8);\
x20 = ROTR962(x61, x60, 8);\
x31 = ROTR96MORE321(x71, x70, 55);\
x30 = ROTR96MORE322(x71, x70, 55);\
}
int crypto_aead_encrypt(unsigned char *c, unsigned long long *clen,
const unsigned char *m, unsigned long long mlen,
const unsigned char *ad, unsigned long long adlen,
const unsigned char *nsec, const unsigned char *npub,
const unsigned char *k) {
u64 i;
u64 t1, t2, t3, t5, t6, t8, t9, t11;
u64 x30 = 0, x20 = 0, x10 = 0, x00 = 0;
u32 x31 = 0, x21 = 0, x11 = 0, x01 = 0;
u8 tempData[24] = { 0 };
u8 tempData1[24] = { 0 };
u64 x50, x60, x70;
u32 x51, x61, x71;
*clen = mlen + CRYPTO_KEYBYTES;
// initialization