diff options
Diffstat (limited to 'src/lib/pubkey/newhope')
| -rw-r--r-- | src/lib/pubkey/newhope/newhope.cpp | 61 | ||||
| -rw-r--r-- | src/lib/pubkey/newhope/newhope.h | 11 |
2 files changed, 35 insertions, 37 deletions
diff --git a/src/lib/pubkey/newhope/newhope.cpp b/src/lib/pubkey/newhope/newhope.cpp index d367cc982..178cf340e 100644 --- a/src/lib/pubkey/newhope/newhope.cpp +++ b/src/lib/pubkey/newhope/newhope.cpp @@ -103,7 +103,7 @@ inline void ntt(uint16_t * a, const uint16_t* omega) } } -inline void poly_frombytes(poly *r, const unsigned char *a) +inline void poly_frombytes(poly *r, const uint8_t *a) { int i; for(i=0;i<PARAM_N/4;i++) @@ -115,13 +115,13 @@ inline void poly_frombytes(poly *r, const unsigned char *a) } } -inline void poly_tobytes(unsigned char *r, const poly *p) +inline void poly_tobytes(uint8_t *r, const poly *p) { int i; - uint16_t t0,t1,t2,t3,m; - int16_t c; for(i=0;i<PARAM_N/4;i++) { + uint16_t t0,t1,t2,t3,m; + int16_t c; t0 = barrett_reduce(p->coeffs[4*i+0]); //Make sure that coefficients have only 14 bits t1 = barrett_reduce(p->coeffs[4*i+1]); t2 = barrett_reduce(p->coeffs[4*i+2]); @@ -159,7 +159,7 @@ inline void poly_tobytes(unsigned char *r, const poly *p) inline void poly_getnoise(Botan::RandomNumberGenerator& rng, poly *r) { - unsigned char buf[4*PARAM_N]; + uint8_t buf[4*PARAM_N]; uint32_t *tp, t,d, a, b; int i,j; @@ -274,7 +274,7 @@ static const uint16_t psis_inv_montgomery[PARAM_N] = {256,10570,1510,7238,1034,7 } -inline void encode_a(unsigned char *r, const poly *pk, const unsigned char *seed) +inline void encode_a(uint8_t *r, const poly *pk, const uint8_t *seed) { int i; poly_tobytes(r, pk); @@ -282,7 +282,7 @@ inline void encode_a(unsigned char *r, const poly *pk, const unsigned char *seed r[NEWHOPE_POLY_BYTES+i] = seed[i]; } -inline void decode_a(poly *pk, unsigned char *seed, const unsigned char *r) +inline void decode_a(poly *pk, uint8_t *seed, const uint8_t *r) { int i; poly_frombytes(pk, r); @@ -290,7 +290,7 @@ inline void decode_a(poly *pk, unsigned char *seed, const unsigned char *r) seed[i] = r[NEWHOPE_POLY_BYTES+i]; } -inline void encode_b(unsigned char *r, const poly *b, const poly *c) +inline void encode_b(uint8_t *r, const poly *b, const poly *c) { int i; poly_tobytes(r,b); @@ -298,7 +298,7 @@ inline void encode_b(unsigned char *r, const poly *b, const poly *c) r[NEWHOPE_POLY_BYTES+i] = c->coeffs[4*i] | (c->coeffs[4*i+1] << 2) | (c->coeffs[4*i+2] << 4) | (c->coeffs[4*i+3] << 6); } -inline void decode_b(poly *b, poly *c, const unsigned char *r) +inline void decode_b(poly *b, poly *c, const uint8_t *r) { int i; poly_frombytes(b, r); @@ -379,14 +379,14 @@ inline int16_t LDDecode(int32_t xi0, int32_t xi1, int32_t xi2, int32_t xi3) inline void helprec(poly *c, const poly *v, RandomNumberGenerator& rng) { int32_t v0[4], v1[4]; - unsigned char rand[32]; + uint8_t rand[32]; int i; rng.randomize(rand, 32); for(i=0; i<256; i++) { - unsigned char rbit = (rand[i>>3] >> (i&7)) & 1; + uint8_t rbit = (rand[i>>3] >> (i&7)) & 1; int32_t k; k = f(v0+0, v1+0, 8*v->coeffs[ 0+i] + 4*rbit); @@ -409,7 +409,7 @@ inline void helprec(poly *c, const poly *v, RandomNumberGenerator& rng) } } -inline void rec(unsigned char *key, const poly *v, const poly *c) +inline void rec(uint8_t *key, const poly *v, const poly *c) { int i; int32_t tmp[4]; @@ -437,11 +437,11 @@ inline void rec(unsigned char *key, const poly *v, const poly *c) void keccak_absorb(uint64_t *s, unsigned int r, - const unsigned char *m, unsigned long long int mlen, - unsigned char p) + const uint8_t *m, size_t mlen, + uint8_t p) { - unsigned long long i; - unsigned char t[200]; + size_t i; + uint8_t t[200]; for (i = 0; i < 25; ++i) s[i] = 0; @@ -466,10 +466,9 @@ void keccak_absorb(uint64_t *s, s[i] ^= load_le<u64bit>(t, i); } -inline void keccak_squeezeblocks(unsigned char *h, unsigned long long int nblocks, +inline void keccak_squeezeblocks(uint8_t *h, size_t nblocks, uint64_t *s, unsigned int r) { - unsigned int i; while(nblocks > 0) { Keccak_1600::permute(s); @@ -481,27 +480,27 @@ inline void keccak_squeezeblocks(unsigned char *h, unsigned long long int nblock } } -inline void shake128_absorb(uint64_t *s, const unsigned char *input, unsigned int inputByteLen) +inline void shake128_absorb(uint64_t *s, const uint8_t *input, size_t inputByteLen) { keccak_absorb(s, SHAKE128_RATE, input, inputByteLen, 0x1F); } -inline void shake128_squeezeblocks(unsigned char *output, unsigned long long nblocks, uint64_t *s) +inline void shake128_squeezeblocks(uint8_t *output, size_t nblocks, uint64_t *s) { keccak_squeezeblocks(output, nblocks, s, SHAKE128_RATE); } -void gen_a(poly *a, const unsigned char *seed) +void gen_a(poly *a, const uint8_t *seed) { unsigned int pos=0, ctr=0; uint16_t val; uint64_t state[25]; unsigned int nblocks=16; - uint8_t buf[SHAKE128_RATE*nblocks]; + uint8_t buf[SHAKE128_RATE*16]; shake128_absorb(state, seed, NEWHOPE_SEED_BYTES); - shake128_squeezeblocks((unsigned char *) buf, nblocks, state); + shake128_squeezeblocks((uint8_t *) buf, nblocks, state); while(ctr < PARAM_N) { @@ -512,7 +511,7 @@ void gen_a(poly *a, const unsigned char *seed) if(pos > SHAKE128_RATE*nblocks-2) { nblocks=1; - shake128_squeezeblocks((unsigned char *) buf,nblocks,state); + shake128_squeezeblocks((uint8_t *) buf,nblocks,state); pos = 0; } } @@ -522,12 +521,12 @@ void gen_a(poly *a, const unsigned char *seed) // API FUNCTIONS -void newhope_hash(unsigned char *output, const unsigned char *input, unsigned int inputByteLen) +void newhope_hash(uint8_t *output, const uint8_t *input, size_t inputByteLen) { const size_t SHA3_256_RATE = 136; uint64_t s[25]; - unsigned char t[SHA3_256_RATE]; + uint8_t t[SHA3_256_RATE]; int i; keccak_absorb(s, SHA3_256_RATE, input, inputByteLen, 0x06); @@ -536,10 +535,10 @@ const size_t SHA3_256_RATE = 136; output[i] = t[i]; } -void newhope_keygen(unsigned char *send, poly *sk, RandomNumberGenerator& rng) +void newhope_keygen(uint8_t *send, poly *sk, RandomNumberGenerator& rng) { poly a, e, r, pk; - unsigned char seed[NEWHOPE_SEED_BYTES]; + uint8_t seed[NEWHOPE_SEED_BYTES]; rng.randomize(seed, NEWHOPE_SEED_BYTES); @@ -557,11 +556,11 @@ void newhope_keygen(unsigned char *send, poly *sk, RandomNumberGenerator& rng) encode_a(send, &pk, seed); } -void newhope_sharedb(unsigned char *sharedkey, unsigned char *send, const unsigned char *received, +void newhope_sharedb(uint8_t *sharedkey, uint8_t *send, const uint8_t *received, RandomNumberGenerator& rng) { poly sp, ep, v, a, pka, c, epp, bp; - unsigned char seed[NEWHOPE_SEED_BYTES]; + uint8_t seed[NEWHOPE_SEED_BYTES]; decode_a(&pka, seed, received); gen_a(&a, seed); @@ -590,7 +589,7 @@ void newhope_sharedb(unsigned char *sharedkey, unsigned char *send, const unsign } -void newhope_shareda(unsigned char *sharedkey, const poly *sk, const unsigned char *received) +void newhope_shareda(uint8_t *sharedkey, const poly *sk, const uint8_t *received) { poly v,bp, c; diff --git a/src/lib/pubkey/newhope/newhope.h b/src/lib/pubkey/newhope/newhope.h index 189833f8d..794f0750f 100644 --- a/src/lib/pubkey/newhope/newhope.h +++ b/src/lib/pubkey/newhope/newhope.h @@ -26,18 +26,17 @@ namespace Botan { typedef struct { uint16_t coeffs[1024]; -} newhope_poly __attribute__ ((aligned (32))); +} newhope_poly; - -void BOTAN_DLL newhope_keygen(unsigned char *send, newhope_poly *sk, RandomNumberGenerator& rng); -void BOTAN_DLL newhope_sharedb(unsigned char *sharedkey, unsigned char *send, const unsigned char *received, RandomNumberGenerator& rng); -void BOTAN_DLL newhope_shareda(unsigned char *sharedkey, const newhope_poly *ska, const unsigned char *received); +void BOTAN_DLL newhope_keygen(uint8_t *send, newhope_poly *sk, RandomNumberGenerator& rng); +void BOTAN_DLL newhope_sharedb(uint8_t *sharedkey, uint8_t *send, const uint8_t *received, RandomNumberGenerator& rng); +void BOTAN_DLL newhope_shareda(uint8_t *sharedkey, const newhope_poly *ska, const uint8_t *received); /* * This is just exposed for testing */ -void BOTAN_DLL newhope_hash(unsigned char *output, const unsigned char *input, unsigned int inputByteLen); +void BOTAN_DLL newhope_hash(uint8_t *output, const uint8_t *input, size_t inputByteLen); } |