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HRSS: flatten sample distribution.

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With HRSS-SXY, the sampling algorithm now longer has to be the same
between the two parties. Therefore we can change it at will (as long as
it remains reasonably uniform) and thus take the opportunity to make the
output distribution flatter.

Change-Id: I74c667fcf919fe11ddcf2f4fb8a540b5112268bf
Reviewed-on: https://boringssl-review.googlesource.com/c/34404
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
This commit is contained in:
Adam Langley 2019-01-21 12:53:43 -08:00 committed by CQ bot account: commit-bot@chromium.org
parent c1615719ce
commit 72f015562c
3 changed files with 216 additions and 264 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

74
crypto/hrss/hrss.c
View File

@ -1460,7 +1460,7 @@ static void poly2_from_poly(struct poly2 *out, const struct poly *in) {
*words = word; *words = word;
} }
// mod3 treats |a| is a signed number and returns |a| mod 3. // mod3 treats |a| as a signed number and returns |a| mod 3.
static uint16_t mod3(int16_t a) { static uint16_t mod3(int16_t a) {
const int16_t q = ((int32_t)a * 21845) >> 16; const int16_t q = ((int32_t)a * 21845) >> 16;
int16_t ret = a - 3 * q; int16_t ret = a - 3 * q;
@ -1794,69 +1794,21 @@ static void poly_marshal_mod3(uint8_t out[HRSS_POLY3_BYTES],
// HRSS-specific functions // HRSS-specific functions
// ----------------------- // -----------------------
// poly_short_sample implements the sampling algorithm given in [HRSSNIST] // poly_short_sample samples a vector of values in {0xffff (i.e. -1), 0, 1}.
// section 1.8.1. The output coefficients are in {0, 1, 0xffff} which makes some // This is the same action as the algorithm in [HRSSNIST] section 1.8.1, but
// later computation easier. // with HRSS-SXY the sampling algorithm is now a private detail of the
// implementation (previously it had to match between two parties). This
// function uses that freedom to implement a flatter distribution of values.
static void poly_short_sample(struct poly *out, static void poly_short_sample(struct poly *out,
const uint8_t in[HRSS_SAMPLE_BYTES]) { const uint8_t in[HRSS_SAMPLE_BYTES]) {
// We wish to calculate the difference (mod 3) between two, two-bit numbers. OPENSSL_STATIC_ASSERT(HRSS_SAMPLE_BYTES == N - 1,
// Here is a table of results for a - b. Negative one is written as 0b11 so "HRSS_SAMPLE_BYTES incorrect");
// that a couple of shifts can be used to sign-extend it. Any input value of for (size_t i = 0; i < N - 1; i++) {
// 0b11 is invalid and a convention is adopted that an invalid input results uint16_t v = mod3(in[i]);
// in an invalid output (0b10). // Map {0, 1, 2} -> {0, 1, 0xffff}
// v |= ((v >> 1) ^ 1) - 1;
// b a result out->v[i] = v;
// 00 00 00
// 00 01 01
// 00 10 11
// 00 11 10
// 01 00 11
// 01 01 00
// 01 10 01
// 01 11 10
// 10 00 01
// 10 01 11
// 10 10 00
// 10 11 10
// 11 00 10
// 11 01 10
// 11 10 10
// 11 11 10
//
// The result column is encoded in a single-word lookup-table:
// 0001 1110 1100 0110 0111 0010 1010 1010
// 1 d c 6 7 2 a a
static const uint32_t kLookup = 0x1dc672aa;
// In order to generate pairs of numbers mod 3 (non-uniformly) we treat pairs
// of bits in a uint32 as separate values and sum two random vectors of 1-bit
// numbers. This works because these pairs are isolated because no carry can
// spread between them.
uint16_t *p = out->v;
for (size_t i = 0; i < N / 8; i++) {
uint32_t v;
OPENSSL_memcpy(&v, in, sizeof(v));
in += sizeof(v);
uint32_t sums = (v & 0x55555555) + ((v >> 1) & 0x55555555);
for (unsigned j = 0; j < 8; j++) {
p[j] = (int32_t)(kLookup << ((sums & 15) << 1)) >> 30;
sums >>= 4;
} }
p += 8;
}
// There are four values remaining.
uint16_t v;
OPENSSL_memcpy(&v, in, sizeof(v));
uint16_t sums = (v & 0x5555) + ((v >> 1) & 0x5555);
for (unsigned j = 0; j < 4; j++) {
p[j] = (int32_t)(kLookup << ((sums & 15) << 1)) >> 30;
sums >>= 4;
}
out->v[N - 1] = 0; out->v[N - 1] = 0;
} }

401
crypto/hrss/hrss_test.cc
View File

@ -250,216 +250,217 @@ TEST(HRSS, Golden) {
HRSS_generate_key(&pub, &priv, generate_key_entropy); HRSS_generate_key(&pub, &priv, generate_key_entropy);
static const uint8_t kExpectedPub[HRSS_PUBLIC_KEY_BYTES] = { static const uint8_t kExpectedPub[HRSS_PUBLIC_KEY_BYTES] = {
0xf8, 0x9f, 0xa0, 0xfc, 0xf1, 0xd4, 0xfa, 0x4d, 0x8f, 0x35, 0x28, 0x73, 0x4a, 0x21, 0x39, 0x7c, 0xb4, 0xa6, 0x58, 0x15, 0x35, 0x77, 0xe4, 0x2a,
0x0e, 0x37, 0x18, 0x1d, 0x09, 0xf3, 0x9e, 0x16, 0x0d, 0x7f, 0x9c, 0x82, 0x02, 0x79, 0xc0, 0x02, 0xe2, 0x21, 0x27, 0x5f, 0x49, 0xc7, 0x2c, 0x14,
0x17, 0xa1, 0xa1, 0x88, 0x6b, 0x29, 0x5b, 0x3a, 0x30, 0xcd, 0x6f, 0x8e, 0xb6, 0xe0, 0x67, 0xc2, 0xc7, 0x09, 0x62, 0x0c, 0xe5, 0x23, 0x9c, 0x40,
0x0c, 0xd3, 0x38, 0x0c, 0x05, 0x68, 0x6e, 0x4c, 0xcc, 0x20, 0xd4, 0x06, 0xd7, 0x7e, 0xf5, 0x55, 0x5a, 0xa2, 0xd0, 0x9f, 0xd3, 0x8c, 0x67, 0x7b,
0x77, 0x0c, 0xac, 0x1c, 0x49, 0x14, 0x00, 0xd6, 0x9b, 0x1c, 0xde, 0x43, 0x48, 0xa4, 0x53, 0x8d, 0x39, 0xb1, 0xcc, 0x99, 0x29, 0xf7, 0x83, 0xbf,
0x0a, 0x59, 0x37, 0xd6, 0x46, 0x68, 0x1f, 0x04, 0xcb, 0x73, 0x92, 0x37, 0x6f, 0x9b, 0x16, 0x73, 0x23, 0xcc, 0xc3, 0x86, 0x98, 0xb1, 0x7c, 0x53,
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0x02, 0x5a, 0x71, 0x46, 0xdd, 0xa4, 0xee, 0xb8, 0x78, 0x44, 0xfd, 0x9e, 0xa2, 0xf6, 0xef, 0x94, 0xed, 0x4a, 0x3e, 0xe6, 0x4b, 0xa2, 0xfb, 0x87,
0xd0, 0x71, 0x16, 0x00, 0xbd, 0x01, 0x1e, 0x27, 0x2e, 0xa0, 0xc6, 0x8d, 0xa3, 0xbc, 0x65, 0x1c, 0x17, 0x64, 0x25, 0xa7, 0xb4, 0xa1, 0xe6, 0x84,
0x55, 0x89, 0x7c, 0x2a, 0x01, 0x2b, 0x1b, 0x75, 0xa2, 0xc2, 0xd1, 0x5a, 0x06, 0x72, 0x0c, 0x28, 0xe8, 0xfc, 0xaa, 0xca, 0xf8, 0x20, 0x79, 0x89,
0x67, 0xfa, 0xdd, 0x3b, 0x70, 0x9d, 0xdb, 0xcd, 0x73, 0x32, 0x5e, 0x24, 0xa9, 0xf0, 0x60, 0xdf, 0xd6, 0xd4, 0xe0, 0xaf, 0x99, 0x54, 0x21, 0xaf,
0xb1, 0xcf, 0x23, 0xbe, 0x3c, 0x56, 0xcc, 0xbe, 0x61, 0xdb, 0xe7, 0x3c, 0x76, 0xd5, 0x9a, 0x31, 0x80, 0xea, 0x7f, 0x03, 0x6c, 0x14, 0x74, 0x06,
0xc7, 0xf5, 0x09, 0xe6, 0x87, 0xa0, 0x09, 0x52, 0x9d, 0x61, 0x5b, 0xc6, 0x9c, 0x93, 0xe3, 0x93, 0xcc, 0x46, 0x4d, 0x82, 0xda, 0xdf, 0x67, 0xe9,
0xd4, 0xc5, 0x2e, 0xc2, 0x6c, 0x87, 0x30, 0x36, 0x49, 0x6f, 0x04, 0xaa, 0x6d, 0x58, 0x2b, 0x49, 0xf3, 0x10, 0x71, 0xa0, 0xc5, 0xec, 0xa0, 0x29,
0xb3, 0x26, 0xd5, 0x63, 0xcf, 0xd4, 0x74, 0x1e, 0xc7, 0x79, 0xb3, 0xfc, 0xd7, 0x7c, 0x43, 0xd5, 0x05, 0x7e, 0x14, 0x8c, 0x39, 0x28, 0xf9, 0x46,
0x8c, 0x41, 0x36, 0x79, 0xaa, 0xd5, 0xba, 0x64, 0x49, 0x48, 0xdb, 0xeb, 0x3d, 0xc1, 0x10, 0x6c, 0x2f, 0xaa, 0xca, 0x11, 0x87, 0x6a, 0xe2, 0xb1,
0xe8, 0x33, 0x7d, 0xbe, 0x3b, 0x67, 0xd7, 0xfd, 0x93, 0x1e, 0x80, 0x8d, 0xf6, 0x31, 0x76, 0xb0, 0xdc, 0x30, 0x8a, 0x97, 0x7d, 0xdc, 0xe4, 0xd1,
0x17, 0xab, 0x6f, 0xfd, 0x1c, 0x4b, 0x2d, 0x5b, 0x90, 0xf0, 0xf0, 0x5d, 0x18, 0xe9, 0x03, 0x91, 0xf5, 0xd2, 0x94, 0x4d, 0x71, 0xf7, 0x35, 0xc8,
0xbe, 0x8f, 0x81, 0x18, 0x29, 0x08, 0x9a, 0x47, 0x1b, 0xc2, 0x2d, 0xa2, 0x3e, 0x46, 0xaf, 0xa3, 0xeb, 0x35, 0x07, 0x01, 0x77, 0xc5, 0x58, 0xca,
0x22, 0x5a, 0x4f, 0xe9, 0x81, 0x64, 0xdd, 0x53, 0x2e, 0x67, 0xe5, 0x07, 0x82, 0x67, 0x3e, 0x4f, 0x01, 0x88, 0xa4, 0xa0, 0xea, 0x0a, 0xb7, 0x13,
0x1a, 0xf0, 0x0c, 0x54, 0x9b, 0xe2, 0xf8, 0xe6, 0xb3, 0xb6, 0xe0, 0x5a, 0x06, 0xbe, 0xb6, 0x61, 0xa4, 0xa2, 0x28, 0xe2, 0x32, 0xcf, 0x25, 0x46,
0x74, 0xfa, 0x8d, 0x9c, 0xa5, 0x7c, 0x6e, 0x73, 0xba, 0xee, 0x6e, 0x6e, 0xcf, 0xce, 0xf5, 0x57, 0x9b, 0x74, 0x8f, 0xfd, 0xbc, 0xfa, 0x3a, 0xa2,
0x31, 0xcb, 0x59, 0xd7, 0xfd, 0x94, 0x1c, 0x4d, 0x62, 0xc6, 0x87, 0x0b, 0x18, 0x22, 0xf1, 0xb1, 0x43, 0x12, 0xe8, 0xe2, 0xe3, 0x06, 0xe6, 0x1c,
0x38, 0x54, 0xc6, 0x35, 0xac, 0xc8, 0x8c, 0xc0, 0xd9, 0x99, 0xee, 0xfc, 0xa7, 0x76, 0x2d, 0x0d, 0xe5, 0x5f, 0xbd, 0x8f, 0xa0, 0x95, 0xcd, 0xe9,
0xa9, 0xde, 0xc4, 0x50, 0x88, 0x8e, 0x24, 0xf6, 0xd6, 0x04, 0x54, 0x3e, 0x28, 0xdb, 0xcc, 0xe5, 0x66, 0x33, 0xd4, 0x4b, 0xf9, 0x0c, 0x42, 0x9b,
0x81, 0xc4, 0x96, 0x9a, 0x40, 0xe5, 0xef, 0x8b, 0xec, 0x41, 0x50, 0x1d, 0x27, 0xee, 0x11, 0xd0, 0xe3, 0x0b, 0x9d, 0xce, 0x2c, 0x91, 0x7a, 0x0e,
0x14, 0xae, 0xa4, 0x5a, 0xac, 0xd4, 0x73, 0x31, 0xc3, 0x1d, 0xc1, 0x96, 0xb8, 0xde, 0x31, 0x73, 0x86, 0x8e, 0x34, 0x59, 0x93, 0x2e, 0x37, 0x9d,
0x89, 0xd8, 0x62, 0x97, 0x60, 0x3f, 0x58, 0x2a, 0x5f, 0xcf, 0xcb, 0x26, 0xc2, 0x3e, 0x89, 0x0b, 0x47, 0xff, 0xa6, 0x55, 0x21, 0xe6, 0x4f, 0x72,
0x99, 0x69, 0x81, 0x13, 0x9c, 0xaf, 0x17, 0x91, 0xa8, 0xeb, 0x9a, 0xf9, 0x7c, 0xcc, 0xe5, 0xb8, 0x18, 0x2c, 0x10, 0xcb, 0xce, 0x48, 0xa5, 0xc5,
0xd3, 0x83, 0x47, 0x66, 0xc7, 0xf8, 0xd8, 0xe3, 0xd2, 0x7e, 0x58, 0xa9, 0x26, 0xb6, 0x19, 0x76, 0xc5, 0x38, 0xf0, 0x38, 0x72, 0xec, 0x22, 0xf9,
0xf5, 0xb2, 0x03, 0xbe, 0x7e, 0xa5, 0x29, 0x9d, 0xff, 0xd1, 0xd8, 0x55, 0x25, 0xde, 0x1c, 0x0c, 0x1b, 0x3e, 0x43, 0xc5, 0x5c, 0x8c, 0xdb, 0xf1,
0x39, 0xc7, 0x2c, 0xce, 0x03, 0x64, 0xdc, 0x18, 0xe7, 0xb0, 0x60, 0x46, 0x42, 0x66, 0xbc, 0xdf, 0xa0, 0x82, 0x4b, 0xec, 0xe1, 0x50, 0x42, 0x57,
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0x3e, 0xe6, 0x24, 0x30, 0x44, 0x6e, 0x66, 0x83, 0xb9, 0x2a, 0x22, 0xaf, 0x73, 0x2a, 0x3d, 0x80, 0x56, 0x4b, 0x85, 0x67, 0xca, 0x2a, 0x19, 0xb6,
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0x88, 0xc6, 0x58, 0x61, 0x65, 0x3c, 0x5d, 0x9c, 0x58, 0x25, 0xd6, 0xdf, 0x1a, 0xe0, 0x33, 0xe3, 0x92, 0xe8, 0xde, 0xb5, 0x08, 0x28, 0xcb, 0xd7,
0x4e, 0x3b, 0x93, 0xbf, 0x82, 0xe1, 0x19, 0xb8, 0xda, 0xde, 0x26, 0x38, 0xb6, 0x79, 0xec, 0x71, 0xcc, 0xe5, 0xd1, 0x4b, 0x89, 0x96, 0x5f, 0xfa,
0xf2, 0xd9, 0x95, 0x24, 0x98, 0xde, 0x58, 0xf7, 0x0c, 0xe9, 0x32, 0xbb, 0xfd, 0x4b, 0xd0, 0xa8, 0x66, 0x0d, 0xb4, 0xa7, 0x51, 0x56, 0xbc, 0xa7,
0xcc, 0xf7, 0x92, 0x69, 0xa2, 0xf0, 0xc3, 0xfa, 0xd2, 0x31, 0x8b, 0x43, 0x74, 0x07, 0x7f, 0xae, 0x0e, 0xf6, 0x9c, 0x13, 0xd9, 0xf2, 0xed, 0x12,
0x4e, 0x03, 0xe2, 0x13, 0x79, 0x6e, 0x73, 0x63, 0x3b, 0x45, 0xde, 0x80, 0xa9, 0x87, 0x3e, 0xb7, 0x9d, 0x53, 0x8a, 0x82, 0x2d, 0x03, 0x2f, 0xac,
0xf4, 0x26, 0xb1, 0x38, 0xed, 0x62, 0x55, 0xc6, 0x6a, 0x67, 0x00, 0x2d, 0x94, 0x84, 0x95, 0x00, 0x29, 0x09, 0x01, 0x38, 0x62, 0xff, 0xaf, 0xfd,
0xba, 0xb2, 0xc5, 0xb6, 0x97, 0x62, 0x28, 0x64, 0x30, 0xb9, 0xfb, 0x3f, 0x10, 0x2b, 0x31, 0x03, 0xb2, 0x4f, 0x51, 0xfb, 0x76, 0x27, 0x1e, 0x25,
0x94, 0x03, 0x48, 0x36, 0x2c, 0x5d, 0xfd, 0x08, 0x96, 0x40, 0xd1, 0x6c, 0x82, 0x79, 0x65, 0x69, 0xfa, 0x24, 0xaf, 0xcb, 0xe8, 0x40, 0x8d, 0x7d,
0xe5, 0xd0, 0xf8, 0x99, 0x40, 0x82, 0x87, 0xd7, 0xdc, 0x2f, 0x8b, 0xaa, 0xd2, 0x9a, 0x12, 0x69, 0x2f, 0xe4, 0xce, 0x99, 0x98, 0x4f, 0x6c, 0x46,
0x31, 0x96, 0x0a, 0x34, 0x33, 0xa6, 0xf1, 0x84, 0x6e, 0x33, 0x73, 0xc5, 0xfd, 0x63, 0x40, 0x50, 0xef, 0x22, 0x02, 0x68, 0x2e, 0x53, 0xbb, 0x00,
0xe3, 0x26, 0xad, 0xd0, 0xcb, 0x62, 0x71, 0x82, 0xab, 0xd1, 0x82, 0x33, 0xa3, 0x65, 0x61, 0x3e, 0x97, 0xd4, 0x5f, 0xa2, 0xc1, 0x66, 0xcd, 0x04,
0xe6, 0xca, 0xd0, 0x3e, 0xf5, 0x4d, 0x12, 0x6e, 0xf1, 0x83, 0xbd, 0xdc, 0xdc, 0xda, 0x55, 0x10, 0x28, 0x0d, 0x40, 0x11, 0xe6, 0x68, 0xed, 0x68,
0x4d, 0xdf, 0x49, 0xbc, 0x63, 0xae, 0x7e, 0x59, 0xe8, 0x3c, 0x0d, 0xd6, 0x38, 0x7d, 0x20, 0xc3, 0x97, 0x9d, 0xcb, 0x6e, 0x30, 0xfc, 0xbe, 0x63,
0x1d, 0x41, 0x89, 0x72, 0x52, 0xc0, 0xae, 0xd1, 0x2f, 0x0a, 0x8a, 0xce, 0xe7, 0x72, 0x47, 0x05, 0xf5, 0x0b, 0x7e, 0x66, 0x3b, 0xc5, 0x3a, 0x85,
0x26, 0xd0, 0x3e, 0x0c, 0x71, 0x32, 0x52, 0xb2, 0xe4, 0xee, 0xa2, 0xe5, 0x5a, 0xa3, 0xc5, 0x72, 0x9d, 0xb9, 0xc1, 0xb4, 0x80, 0x98, 0x6e, 0x40,
0x28, 0xb6, 0x33, 0x69, 0x97, 0x5a, 0x53, 0xdb, 0x56, 0x63, 0xe9, 0xb3, 0x86, 0xc9, 0xcb, 0xa3, 0xab, 0x77, 0xc2, 0x56, 0xfc, 0xcb, 0x6e, 0x12,
0x6d, 0x60, 0xf4, 0x7a, 0xce, 0xec, 0x36, 0x65, 0xd5, 0xca, 0x63, 0x2a, 0xf5, 0x63, 0x62, 0xf8, 0xff, 0x91, 0x15, 0xa7, 0xa1, 0x5e, 0xb6, 0xee,
0x19, 0x90, 0x14, 0x7b, 0x02, 0x33, 0xfa, 0x11, 0x58, 0x5a, 0xd9, 0xc5, 0x69, 0x4d, 0x5b, 0x5f, 0x4e, 0xfa, 0xd3, 0x61, 0xca, 0xec, 0x14, 0xfd,
0x54, 0xf3, 0x28, 0xd5, 0x6e, 0xea, 0x85, 0xf5, 0x09, 0xbb, 0x81, 0x44, 0xd9, 0x10, 0xf5, 0x4a, 0x05, 0x5f, 0x29, 0xcb, 0x77, 0x2c, 0x2d, 0xe2,
0x1c, 0x63, 0x66, 0x81, 0xc5, 0x96, 0x2d, 0x7c, 0x0e, 0x75, 0x7b, 0xb4, 0x90, 0x67, 0x62, 0x78, 0x75, 0xa9, 0x4e, 0x20, 0x00, 0x0c, 0x91, 0x84,
0x7e, 0x4e, 0x0c, 0xfd, 0x3c, 0xc5, 0x5a, 0x22, 0x85, 0x5c, 0xc8, 0xf3, 0xba, 0xed, 0x1c, 0xce, 0xbd, 0x57, 0x4f, 0xa5, 0x2f, 0x59, 0x6c, 0x4c,
0x97, 0x98, 0x2c, 0xe9, 0x46, 0xb4, 0x02, 0xcf, 0x7d, 0xa4, 0xf2, 0x44, 0xdf, 0x5f, 0xaa, 0x32, 0xf0, 0x86, 0x09, 0x15, 0x36, 0xc6, 0xe6, 0x6a,
0x7a, 0x89, 0x71, 0xa0, 0xfa, 0xb6, 0xa3, 0xaf, 0x13, 0x25, 0x46, 0xe2, 0x24, 0xb4, 0xb3, 0x09, 0xdd, 0x32, 0xc5, 0x95, 0xac, 0x60, 0xb5, 0x09,
0x64, 0xe3, 0x69, 0xba, 0xf9, 0x68, 0x5c, 0xc0, 0xb7, 0xa8, 0xa6, 0x4b, 0x97, 0x36, 0xa1, 0x3c, 0x8f, 0x0e, 0x90, 0x8e, 0xcd, 0xd0, 0x49, 0x75,
0xe1, 0x42, 0xe9, 0xb5, 0xc7, 0x84, 0xbb, 0xa6, 0x4b, 0x10, 0x4e, 0xd4, 0xf7, 0xf3, 0x80, 0x80, 0xcb, 0x1f, 0xee, 0xf2, 0x6a, 0x2f, 0x19, 0x8c,
0x68, 0x70, 0x0a, 0x75, 0x2a, 0xbb, 0x9d, 0xa0, 0xcb, 0xf0, 0x36, 0x4c, 0xba, 0x10, 0x00, 0xda, 0x13, 0xef, 0x10, 0x2b, 0xb7, 0xef, 0xfd, 0xd1,
0x70, 0x6c, 0x60, 0x4d, 0xfe, 0xe8, 0xc8, 0x66, 0x80, 0x1b, 0xf7, 0xcc, 0xe0, 0x7c, 0xf8, 0x46, 0x01, 0x69, 0x9b, 0x99, 0x80, 0x51, 0x1f, 0x74,
0x1a, 0xdd, 0x6b, 0xa7, 0xa7, 0x25, 0x61, 0x0c, 0x31, 0xf0, 0x34, 0x63, 0x3b, 0x67, 0x93, 0x18, 0x5e, 0xd4, 0x34, 0x6c, 0x81, 0x76, 0x02, 0xef,
0x00, 0x0e, 0x48, 0x6a, 0x5a, 0x8d, 0x47, 0x94, 0x3f, 0x14, 0x16, 0xa8, 0x91, 0xa4, 0x22, 0x2a, 0x23, 0x1b, 0x58, 0x43, 0x75, 0x65, 0x13, 0x87,
0x8a, 0x49, 0xbb, 0x0c, 0x43, 0x21, 0xda, 0xf2, 0xc5, 0xd0, 0xff, 0x19, 0x98, 0x60, 0x14, 0x25, 0x28, 0x67, 0xa3, 0x34, 0x8c, 0xe0, 0xd5, 0xd3,
0x3e, 0x36, 0x64, 0x20, 0xb3, 0x70, 0xae, 0x54, 0xca, 0x73, 0x05, 0x56, 0x51, 0x33, 0x68, 0xff, 0x65, 0x59, 0x5a, 0xa7, 0xb2, 0x6b, 0x01, 0xad,
0x7a, 0x49, 0x45, 0xe9, 0x46, 0xbc, 0xc2, 0x61, 0x70, 0x40, 0x7c, 0xb0, 0x70, 0x06, 0x73, 0x01, 0x51, 0x1b, 0xe1, 0xec, 0x28, 0x2f, 0x8a, 0x85,
0xf7, 0xea, 0xc0, 0xd1, 0xb0, 0x77, 0x2c, 0xc7, 0xdd, 0x88, 0xcb, 0x9d, 0x5a, 0x10, 0xd0, 0x0e, 0x6b, 0x35, 0x45, 0x2e, 0x61, 0xdd, 0x77, 0x20,
0xea, 0x55, 0x6c, 0x5c, 0x28, 0xb8, 0x84, 0x1c, 0x2c, 0x06, 0xb1, 0x35, 0x3b, 0xa8, 0xdd, 0x8a, 0xe2, 0x15, 0x79, 0x07,
}; };
uint8_t pub_bytes[HRSS_PUBLIC_KEY_BYTES]; uint8_t pub_bytes[HRSS_PUBLIC_KEY_BYTES];
HRSS_marshal_public_key(pub_bytes, &pub); HRSS_marshal_public_key(pub_bytes, &pub);
EXPECT_EQ(Bytes(pub_bytes), Bytes(kExpectedPub)); EXPECT_EQ(Bytes(pub_bytes), Bytes(kExpectedPub));
uint8_t encap_entropy[HRSS_ENCAP_BYTES];
for (size_t i = 0; i < sizeof(encap_entropy); i++) {
encap_entropy[i] = 31 + i;
}
uint8_t ciphertext[HRSS_CIPHERTEXT_BYTES]; uint8_t ciphertext[HRSS_CIPHERTEXT_BYTES];
uint8_t shared_key[HRSS_KEY_BYTES]; uint8_t shared_key[HRSS_KEY_BYTES];
OPENSSL_STATIC_ASSERT( HRSS_encap(ciphertext, shared_key, &pub, encap_entropy);
sizeof(kExpectedPub) >= HRSS_ENCAP_BYTES,
"Private key too small to use as input to HRSS encapsulation");
HRSS_encap(ciphertext, shared_key, &pub, kExpectedPub);
static const uint8_t kExpectedCiphertext[HRSS_CIPHERTEXT_BYTES] = { static const uint8_t kExpectedCiphertext[HRSS_CIPHERTEXT_BYTES] = {
0x8e, 0x6b, 0x46, 0x9d, 0x4a, 0xef, 0xa6, 0x8c, 0x28, 0x7b, 0xec, 0x6f, 0xe0, 0xc0, 0x77, 0xeb, 0x7a, 0x48, 0x7d, 0x74, 0x4e, 0x4f, 0x6d, 0xb9,
0x13, 0x2d, 0x7f, 0x6c, 0xca, 0x7d, 0x9e, 0x6b, 0x54, 0x62, 0xa3, 0x13, 0x5c, 0x18, 0xe9, 0x5b, 0x47, 0x6c, 0x78, 0x9d, 0x98, 0x02, 0x84, 0x9f,
0xe1, 0x1e, 0x8f, 0x5f, 0x71, 0x67, 0xc4, 0x85, 0xdf, 0xd5, 0x6b, 0xbd, 0xf2, 0x45, 0x43, 0x86, 0x0e, 0xc6, 0x93, 0x48, 0xd8, 0x20, 0xff, 0x82,
0x86, 0x0f, 0x98, 0xec, 0xa5, 0x04, 0xf7, 0x7b, 0x2a, 0xbe, 0xcb, 0xac, 0x38, 0x9e, 0x78, 0xb4, 0x2c, 0xb3, 0x42, 0xe4, 0xb3, 0xab, 0xdf, 0xed,
0x29, 0xbe, 0xe1, 0x0f, 0xbc, 0x62, 0x87, 0x85, 0x7f, 0x05, 0xae, 0xe4, 0x65, 0x24, 0x0c, 0xa5, 0x95, 0x2c, 0xbf, 0x4c, 0x28, 0xfc, 0xb8, 0xe7,
0x3f, 0x87, 0xfc, 0x1f, 0xf7, 0x45, 0x1e, 0xa3, 0xdb, 0xb1, 0xa0, 0x25, 0xc6, 0xbc, 0x76, 0xa0, 0xf5, 0x3f, 0x29, 0x73, 0x23, 0xf1, 0x6c, 0x10,
0xba, 0x82, 0xec, 0xca, 0x8d, 0xab, 0x7a, 0x20, 0x03, 0xeb, 0xe5, 0x5c, 0x7c, 0x08, 0x8e, 0x16, 0x3a, 0xda, 0x17, 0xa3, 0x0d, 0x46, 0x44, 0xee,
0x9f, 0xd0, 0x46, 0x78, 0xf1, 0x5a, 0xc7, 0x9e, 0xb4, 0x10, 0x6d, 0x37, 0x6f, 0x70, 0xf1, 0x88, 0x51, 0x35, 0x33, 0x91, 0x76, 0xeb, 0x98, 0xc1,
0xc0, 0x75, 0x08, 0xfb, 0xeb, 0xcb, 0xd8, 0x35, 0x21, 0x9b, 0x89, 0xa0, 0x04, 0xdb, 0x97, 0xab, 0x88, 0xb9, 0x04, 0x87, 0xd9, 0xb8, 0x34, 0xd3,
0xaa, 0x87, 0x00, 0x66, 0x38, 0x37, 0x68, 0xa4, 0xa3, 0x93, 0x8e, 0x2b, 0x38, 0xe7, 0x90, 0x05, 0x2e, 0x45, 0xe0, 0xac, 0x36, 0x0c, 0x59, 0x58,
0xca, 0xf7, 0x7a, 0x43, 0xb2, 0x15, 0x79, 0x81, 0xce, 0xa9, 0x09, 0xcb, 0xb1, 0xf5, 0x65, 0x6d, 0x28, 0x1a, 0x39, 0xd9, 0xd2, 0x83, 0x17, 0xee,
0x29, 0xd4, 0xcc, 0xef, 0xf1, 0x9b, 0xbd, 0xe6, 0x63, 0xd5, 0x26, 0x0f, 0xeb, 0x6f, 0x7d, 0x29, 0x3c, 0x79, 0xcf, 0x48, 0xf1, 0x6d, 0x35, 0xc2,
0xe8, 0x8b, 0xdf, 0xf1, 0xc3, 0xb4, 0x18, 0x0e, 0xf2, 0x1d, 0x5d, 0x82, 0x8c, 0xe8, 0x67, 0x18, 0xcc, 0x9d, 0x9b, 0x8d, 0x07, 0x7a, 0x4e, 0x56,
0x9b, 0x1f, 0xf3, 0xca, 0x36, 0x2a, 0x26, 0x0a, 0x7f, 0xc4, 0x0d, 0xbd, 0xa8, 0x00, 0x2e, 0x67, 0x67, 0xbb, 0xc1, 0xda, 0x4a, 0x7b, 0x9f, 0xa6,
0x5b, 0x15, 0x1c, 0x18, 0x6c, 0x11, 0x4e, 0xec, 0x36, 0x01, 0xc1, 0x15, 0x4a, 0x5c, 0x40, 0xcc, 0xe4, 0xdd, 0xf5, 0xc0, 0x44, 0xfe, 0xa5, 0xa2,
0xab, 0xf7, 0x0b, 0x1a, 0xd3, 0xa1, 0xbd, 0x68, 0xc8, 0x59, 0xe7, 0x49, 0x1c, 0xdc, 0xf2, 0x31, 0xf4, 0x01, 0x1f, 0x69, 0x15, 0x7e, 0x8c, 0x54,
0x5c, 0xd5, 0x4b, 0x8c, 0x31, 0xdb, 0xb3, 0xea, 0x88, 0x09, 0x2f, 0xb9, 0xb6, 0x47, 0x0c, 0x1d, 0x9f, 0x1a, 0xfa, 0xf7, 0x46, 0xa3, 0xcb, 0x34,
0x8b, 0xfd, 0x96, 0x35, 0x88, 0x53, 0x72, 0x40, 0xcd, 0x89, 0x75, 0xb4, 0x2c, 0x18, 0x45, 0x65, 0xc4, 0xf2, 0x0e, 0xf8, 0xc7, 0x96, 0x1d, 0x29,
0x20, 0xf6, 0xf6, 0xe5, 0x74, 0x19, 0x48, 0xaf, 0x4b, 0xaa, 0x42, 0xa4, 0x5c, 0x90, 0xd3, 0xdf, 0xb2, 0x8e, 0x21, 0xf9, 0x15, 0x40, 0x7e, 0xd3,
0xc8, 0x90, 0xee, 0xf3, 0x12, 0x04, 0x63, 0x90, 0x92, 0x8a, 0x89, 0xc3, 0x84, 0x52, 0x1d, 0xd9, 0xee, 0xed, 0xe8, 0x71, 0x1c, 0xdb, 0x48, 0xf5,
0xa0, 0x7e, 0xfe, 0x19, 0xb3, 0x54, 0x53, 0x83, 0xe9, 0xc1, 0x6c, 0xe3, 0x20, 0x82, 0xc4, 0x61, 0xfd, 0x6d, 0x71, 0x9f, 0xd8, 0x03, 0x90, 0x8e,
0x97, 0xa6, 0x27, 0xc3, 0x20, 0x9a, 0x79, 0x35, 0xc9, 0xb5, 0xc0, 0x90, 0xfc, 0xed, 0x4d, 0xab, 0x6e, 0xb2, 0xe9, 0x66, 0xfd, 0xcc, 0x3a, 0xa3,
0xe1, 0x56, 0x84, 0x69, 0xc2, 0x54, 0x77, 0x52, 0x48, 0x55, 0x71, 0x3e, 0x99, 0x53, 0x35, 0x76, 0xea, 0x08, 0x88, 0xba, 0xf0, 0xb7, 0x53, 0xf3,
0xcd, 0xa7, 0xd6, 0x25, 0x5d, 0x49, 0x13, 0xd2, 0x59, 0xd7, 0xe1, 0xd1, 0x4c, 0x1a, 0x8f, 0x7f, 0xe4, 0x1b, 0x8b, 0xfc, 0x99, 0x3e, 0x4c, 0xa9,
0x70, 0x46, 0xa0, 0xd4, 0xee, 0x59, 0x13, 0x1f, 0x1a, 0xd3, 0x39, 0x7d, 0xd9, 0x17, 0x10, 0x64, 0x60, 0xfd, 0x81, 0x76, 0xe6, 0x37, 0xb0, 0xe3,
0xb0, 0x79, 0xf7, 0xc0, 0x73, 0x5e, 0xbb, 0x08, 0xf7, 0x5c, 0xb0, 0x31, 0x3e, 0xc0, 0xf7, 0x06, 0x7e, 0x34, 0xa5, 0xf4, 0xb9, 0x5f, 0x66, 0xe6,
0x41, 0x3d, 0x7b, 0x1e, 0xf0, 0xe6, 0x47, 0x5c, 0x37, 0xd5, 0x54, 0xf1, 0x81, 0xc8, 0x5e, 0xb2, 0x26, 0x6b, 0x8c, 0xad, 0xd0, 0x94, 0x01, 0x22,
0xbb, 0x64, 0xd7, 0x41, 0x8b, 0x34, 0x55, 0xaa, 0xc3, 0x5a, 0x9c, 0xa0, 0xf6, 0xbe, 0x1a, 0x0b, 0x34, 0xfc, 0x33, 0xc0, 0x84, 0xa5, 0xe0, 0x12,
0xcc, 0x29, 0x8e, 0x5a, 0x1a, 0x93, 0x5a, 0x49, 0xd3, 0xd0, 0xa0, 0x56, 0x8a, 0x08, 0xae, 0x8a, 0xaf, 0x55, 0x0c, 0x34, 0x4b, 0x2b, 0xdd, 0xa3,
0xda, 0x32, 0xa2, 0xa9, 0xa7, 0x13, 0x42, 0x93, 0x9b, 0x20, 0x32, 0x37, 0x7c, 0xc0, 0xed, 0xe8, 0x8d, 0x98, 0x47, 0x7c, 0x81, 0x25, 0x1b, 0x9f,
0x5c, 0x3e, 0x03, 0xa5, 0x28, 0x10, 0x93, 0xdd, 0xa0, 0x04, 0x7b, 0x2a, 0x08, 0x26, 0x9d, 0xfc, 0x19, 0x8e, 0x39, 0xc4, 0x1a, 0x3c, 0x42, 0x70,
0xbd, 0x31, 0xc3, 0x6a, 0x89, 0x58, 0x6e, 0x55, 0x0e, 0xc9, 0x5c, 0x70, 0x49, 0x37, 0x57, 0x87, 0x0f, 0x76, 0xb1, 0xc4, 0xbe, 0x25, 0x5e, 0x1c,
0x07, 0x10, 0xf1, 0x9a, 0xbd, 0xfb, 0xd2, 0xb7, 0x94, 0x5b, 0x4f, 0x8d, 0x06, 0x57, 0xc6, 0x88, 0x34, 0x28, 0xdf, 0x60, 0x33, 0x09, 0xc5, 0xcc,
0x90, 0xfa, 0xee, 0xae, 0x37, 0x48, 0xc5, 0xf8, 0x16, 0xa1, 0x3b, 0x70, 0xf4, 0xc4, 0x33, 0x85, 0x8b, 0x48, 0xe8, 0x27, 0xb7, 0x72, 0x22, 0x44,
0x03, 0x1f, 0x0e, 0xb8, 0xbd, 0x8d, 0x30, 0x4f, 0x95, 0x31, 0x0b, 0x9f, 0xff, 0xe7, 0x89, 0xf9, 0x71, 0x99, 0xed, 0x62, 0x47, 0xb0, 0x22, 0x9e,
0xfc, 0x80, 0xf8, 0xef, 0xa3, 0x3c, 0xbc, 0xe2, 0x23, 0x23, 0x3e, 0x2a, 0xa6, 0x7c, 0xaf, 0xa9, 0x98, 0x2b, 0x5c, 0x8a, 0x42, 0x34, 0x77, 0xa3,
0x55, 0x11, 0xe8, 0x2c, 0x17, 0xea, 0x1c, 0xbd, 0x1d, 0x2d, 0x1b, 0xd5, 0xc8, 0x13, 0x1e, 0xcf, 0x32, 0xa7, 0x70, 0xa8, 0xad, 0xc1, 0x66, 0x5c,
0x16, 0x9e, 0x05, 0xfc, 0x89, 0x64, 0x50, 0x4d, 0x9a, 0x22, 0x50, 0xc6, 0x8f, 0xaf, 0x14, 0x6d, 0xc4, 0x45, 0x05, 0xcd, 0xcb, 0x80, 0xfa, 0x0e,
0x5a, 0xd9, 0x58, 0x99, 0x8f, 0xbd, 0xf2, 0x4f, 0x2c, 0xdb, 0x51, 0x6a, 0xa6, 0xca, 0x72, 0x86, 0xd2, 0xb7, 0x39, 0x26, 0x77, 0xf8, 0x14, 0xd0,
0x86, 0xe2, 0xc6, 0x64, 0x8f, 0x54, 0x1a, 0xf2, 0xcb, 0x34, 0x88, 0x08, 0xcd, 0xdd, 0xf7, 0xdc, 0xda, 0x25, 0x8e, 0x3c, 0x21, 0xfd, 0xef, 0x92,
0xbd, 0x2a, 0x8f, 0xec, 0x29, 0xf5, 0x22, 0x36, 0x83, 0x99, 0xb9, 0x71, 0xee, 0x52, 0xf7, 0xc3, 0xc7, 0xe2, 0x2d, 0x1c, 0x57, 0x5a, 0xba, 0xd8,
0x8c, 0x99, 0x5c, 0xec, 0x91, 0x78, 0xc1, 0xe2, 0x2d, 0xe9, 0xd1, 0x4d, 0xaa, 0x0d, 0x09, 0xa7, 0xb3, 0xcc, 0xa1, 0x5d, 0xdb, 0x04, 0x21, 0x82,
0xf5, 0x15, 0x93, 0x4d, 0x93, 0x92, 0x9f, 0x0f, 0x33, 0x5e, 0xcd, 0x58, 0xef, 0xba, 0xc2, 0xc8, 0x54, 0xb1, 0xbe, 0xd7, 0x2a, 0x91, 0xd8, 0xeb,
0x5f, 0x3d, 0x52, 0xb9, 0x38, 0x6a, 0x85, 0x63, 0x8b, 0x63, 0x29, 0xcb, 0x72, 0x54, 0xc1, 0x74, 0x24, 0x24, 0x5a, 0x03, 0xf7, 0xcd, 0xab, 0x91,
0x67, 0x12, 0x25, 0xc2, 0x44, 0xd7, 0xab, 0x1a, 0x24, 0xca, 0x3d, 0xca, 0xd1, 0x63, 0xf1, 0x60, 0x9f, 0x22, 0x07, 0xad, 0x10, 0x2b, 0x97, 0x1c,
0x77, 0xce, 0x28, 0x68, 0x1a, 0x91, 0xed, 0x7b, 0xc9, 0x70, 0x84, 0xab, 0x6f, 0xce, 0xc0, 0x29, 0xc2, 0xb2, 0xb8, 0x1b, 0xbd, 0x14, 0xc8, 0xb9,
0xe2, 0xd4, 0xf4, 0xac, 0x58, 0xf6, 0x70, 0x99, 0xfc, 0x99, 0x4d, 0xbd, 0x80, 0x66, 0xc1, 0x86, 0xfc, 0x93, 0x5f, 0x6e, 0x0b, 0x7a, 0x7b, 0x8e,
0xb4, 0x1b, 0x4f, 0x15, 0x86, 0x95, 0x08, 0xd1, 0x4e, 0x73, 0xa9, 0xbc, 0x42, 0x8c, 0x08, 0xd1, 0x60, 0xb9, 0xf8, 0x66, 0x24, 0x7d, 0x88, 0x58,
0x6a, 0x8c, 0xbc, 0xb5, 0x4b, 0xe0, 0xee, 0x35, 0x24, 0xf9, 0x12, 0xf5, 0x2f, 0xd2, 0x52, 0x75, 0x3a, 0x8a, 0x1c, 0xfa, 0x1e, 0xa1, 0x1c, 0x91,
0x88, 0x70, 0x50, 0x6c, 0xfe, 0x0d, 0x35, 0xbd, 0xf7, 0xc4, 0x2e, 0x39, 0x46, 0x79, 0x9a, 0xe5, 0x8a, 0xdd, 0xc2, 0x75, 0xed, 0x0d, 0xb8, 0x2b,
0x16, 0x30, 0x6c, 0xf3, 0xb2, 0x19, 0x44, 0xaa, 0xcb, 0x4a, 0xf6, 0x75, 0x4f, 0x8f, 0x95, 0xca, 0xce, 0x21, 0xa4, 0x7a, 0x0d, 0x14, 0x7f, 0x2d,
0xb7, 0x09, 0xb9, 0xe1, 0x47, 0x71, 0x70, 0x5c, 0x05, 0x5f, 0x50, 0x50, 0x98, 0xf0, 0x88, 0xc3, 0x6f, 0xad, 0xb5, 0x04, 0x24, 0x91, 0x41, 0x65,
0x9c, 0xd0, 0xe3, 0xc7, 0x91, 0xee, 0x6b, 0xc7, 0x0f, 0x71, 0x1b, 0xc3, 0xd3, 0xa5, 0x7e, 0xfb, 0x53, 0x1c, 0xcc, 0xd0, 0xf7, 0x7c, 0x91, 0x08,
0x48, 0x8b, 0xed, 0x15, 0x26, 0x8c, 0xc3, 0xd5, 0x54, 0x08, 0xcc, 0x33, 0x0e, 0xdd, 0xd4, 0x6c, 0x73, 0xaa, 0xa5, 0x7a, 0xd2, 0x24, 0xc9, 0x3b,
0x79, 0xc0, 0x9f, 0x49, 0xc8, 0x75, 0xef, 0xb6, 0xf3, 0x29, 0x89, 0xfd, 0x6f, 0xda, 0x06, 0x8a, 0xdb, 0x2e, 0xa8, 0xe9, 0xe1, 0x3e, 0x08, 0xee,
0x75, 0xd1, 0xda, 0x92, 0xc3, 0x13, 0xc6, 0x76, 0x51, 0x11, 0x40, 0x7b, 0xbe, 0x96, 0x65, 0x72, 0x68, 0x6f, 0xf7, 0x50, 0xe7, 0xa7, 0x18, 0xda,
0x82, 0xf7, 0x30, 0x79, 0x49, 0x04, 0xe3, 0xbb, 0x61, 0x34, 0xa6, 0x58, 0xc2, 0x94, 0xda, 0xe3, 0xbc, 0xca, 0x03, 0xd8, 0xf7, 0x7a, 0xcc, 0x44,
0x0b, 0x7d, 0xef, 0x3e, 0xf9, 0xb3, 0x8d, 0x2a, 0xba, 0xe9, 0xbc, 0xc0, 0xa1, 0x60, 0xa8, 0x7f, 0xdc, 0xef, 0x80, 0xf4, 0x62, 0xc6, 0x06, 0x4e,
0xa7, 0xe6, 0x6c, 0xda, 0xf8, 0x8c, 0xdf, 0x8d, 0x96, 0x83, 0x2d, 0x80, 0xb6, 0xac, 0x77, 0x17, 0xb7, 0xb3, 0x3e, 0xf8, 0x6d, 0x8a, 0x61, 0x83,
0x4f, 0x21, 0x81, 0xde, 0x57, 0x9d, 0x0a, 0x3c, 0xcc, 0xec, 0x3b, 0xb2, 0x3a, 0xfd, 0xbb, 0x93, 0x5b, 0x1a, 0x33, 0xf8, 0xee, 0x7d, 0x9e, 0x5c,
0x25, 0x96, 0x3c, 0xea, 0xfd, 0x46, 0x26, 0xbe, 0x1c, 0x79, 0x82, 0x1d, 0xf8, 0xc9, 0xd5, 0x3e, 0x3d, 0x42, 0x9b, 0xe5, 0x0d, 0xec, 0xc9, 0x0f,
0xe0, 0x14, 0x22, 0x7c, 0x80, 0x3d, 0xbd, 0x05, 0x90, 0xfa, 0xaf, 0x7d, 0x6f, 0x03, 0xb0, 0x41, 0x85, 0xb9, 0xfe, 0xf9, 0xb1, 0xb4, 0xc3, 0xd9,
0x70, 0x13, 0x43, 0x0f, 0x3d, 0xa0, 0x7f, 0x92, 0x3a, 0x53, 0x69, 0xe4, 0x13, 0x03, 0xfa, 0x0d, 0xe7, 0xd1, 0xb4, 0xc8, 0xf6, 0xb5, 0x11, 0x7a,
0xb0, 0x10, 0x0d, 0xa7, 0x73, 0xa8, 0x8c, 0x74, 0xab, 0xd7, 0x78, 0x15, 0x92, 0x09, 0x21, 0x7b, 0xa9, 0x89, 0x4c, 0x19, 0x90, 0x0d, 0x96, 0x32,
0x45, 0xec, 0x6e, 0xc8, 0x8b, 0xa0, 0xba, 0x21, 0x6f, 0xf3, 0x08, 0xb8, 0x4f, 0x77, 0xfc, 0x7f, 0x8c, 0xa3, 0x39, 0x2a, 0x56, 0xe6, 0x5c, 0xd1,
0xc7, 0x4f, 0x14, 0xf5, 0xcc, 0xfd, 0x39, 0xbc, 0x11, 0xf5, 0xb9, 0x11, 0x86, 0x0a, 0x72, 0xf4, 0xa3, 0x1b, 0xa5, 0x30, 0x04, 0x3c, 0x15, 0x20,
0xba, 0xf3, 0x11, 0x24, 0x74, 0x3e, 0x0c, 0x07, 0x4f, 0xac, 0x2a, 0xb2, 0x4b, 0xe4, 0x2d, 0x1a, 0xf1, 0x44, 0x48, 0xfc, 0xda, 0xc1, 0x41, 0xdb,
0xb1, 0x3c, 0x00, 0xfa, 0xbb, 0x8c, 0xd8, 0x7d, 0x17, 0x5b, 0x8d, 0x39, 0x71, 0xfd, 0x92, 0x00, 0x53, 0xe4, 0x70, 0xd0, 0xba, 0xf6, 0xef, 0x17,
0xc6, 0x23, 0x31, 0x32, 0x7d, 0x6e, 0x20, 0x38, 0xd0, 0xc3, 0x58, 0xe2, 0x72, 0xb8, 0xea, 0x6d, 0x41, 0x16, 0x4d, 0x1f, 0x59, 0x18, 0xbd, 0x1f,
0xb1, 0xfe, 0x53, 0x6b, 0xc7, 0x10, 0x13, 0x7e, 0xc6, 0x7c, 0x67, 0x59, 0xc5, 0x6b, 0x6a, 0x6c, 0x2e, 0xa6, 0x1a, 0x33, 0x74, 0x8b, 0xc5, 0x9f,
0x43, 0x70, 0x4a, 0x2d, 0x7f, 0x76, 0xde, 0xbd, 0x45, 0x43, 0x56, 0x60, 0x16, 0x01, 0x77, 0x7e, 0x37, 0xe7, 0x63, 0xe1, 0xa3, 0x8c, 0x1f, 0x71,
0xcd, 0xe9, 0x24, 0x7b, 0xb7, 0x41, 0xce, 0x56, 0xed, 0xd3, 0x74, 0x75, 0xe9, 0x4f, 0xad, 0x15, 0x8b, 0xf3, 0xc9, 0xac, 0xdc, 0x19, 0xad, 0x92,
0xcc, 0x9d, 0x48, 0x61, 0xc8, 0x19, 0x66, 0x08, 0xfb, 0x28, 0x60, 0x1f, 0x18, 0x00, 0xf6, 0xa1, 0xd5, 0x97, 0xa3, 0x3d, 0x9e, 0x78, 0x02, 0xc3,
0x83, 0x11, 0xc0, 0x9b, 0xbd, 0x71, 0x53, 0x36, 0x01, 0x76, 0xa8, 0xc0, 0x8f, 0x75, 0xd8, 0xad, 0x22, 0xbf, 0xef, 0x19, 0x5d, 0x15, 0x34, 0x1a,
0xdc, 0x1d, 0x18, 0x85, 0x19, 0x65, 0xce, 0xcf, 0x14, 0x2e, 0x6c, 0x32, 0x7c, 0x9b, 0xaf, 0xd4, 0xf2, 0xf9, 0x5f, 0x72, 0x88, 0x9c, 0xe4, 0x58,
0x15, 0xbc, 0x2c, 0x5e, 0x8f, 0xfc, 0x3c, 0xf0, 0x2d, 0xf5, 0x5c, 0x04, 0xda, 0x46, 0x8f, 0x79, 0x30, 0x2b, 0xd9, 0x3b, 0xbc, 0xab, 0x28, 0x77,
0xc9, 0x22, 0xf4, 0xc3, 0xb8, 0x57, 0x79, 0x52, 0x41, 0xfd, 0xff, 0xcd, 0x75, 0x0e, 0x2c, 0x23, 0x47, 0x95, 0x14, 0xeb, 0xf0, 0x4a, 0x3e, 0x53,
0x26, 0xa8, 0xc0, 0xd2, 0xe1, 0x71, 0xd6, 0xf1, 0xf4, 0x0c, 0xa8, 0xeb, 0x93, 0xa7, 0xf4, 0x82, 0x9c, 0x34, 0x8b, 0x80, 0x42, 0xb2, 0xa7, 0xb0,
0x0c, 0x33, 0x40, 0x25, 0x73, 0xbb, 0x31, 0xda, 0x0c, 0xa6, 0xee, 0x0c, 0x7c, 0x6c, 0xe1, 0x07, 0xf4, 0x34, 0x3e, 0xed, 0x33, 0x9c, 0xb3, 0xde,
0x41, 0x51, 0x94, 0x3c, 0x24, 0x27, 0x65, 0xe9, 0xb5, 0xc4, 0xe2, 0x88, 0xa5, 0x91, 0x61, 0x25, 0x8e, 0x8c, 0x54, 0x56, 0xbe, 0x1a, 0xac, 0x17,
0xc0, 0x82, 0xd0, 0x72, 0xd9, 0x10, 0x4d, 0x7f, 0xc0, 0x88, 0x94, 0x41, 0xd2, 0x7a, 0xa4, 0x12, 0x54, 0x2a, 0x51, 0xd0, 0x0e, 0xd1, 0xc1, 0x44,
0x2d, 0x05, 0x09, 0xfb, 0x97, 0x31, 0x6e, 0xc1, 0xe9, 0xf4, 0x50, 0x70, 0x50, 0x05, 0x39, 0xa7, 0xb6, 0x14, 0x45, 0xca, 0xf8, 0x5f, 0x06, 0x6b,
0xdc, 0x3f, 0x0a, 0x90, 0x46, 0x37, 0x60, 0x8c, 0xfb, 0x06, 0x6e, 0xde, 0x5d, 0x5e, 0xc7, 0xe9, 0x27, 0x6f, 0x38, 0xe0, 0x31, 0xcf, 0xf8, 0xcc,
0x6f, 0xa7, 0x6b, 0xa3, 0x88, 0x18, 0x96, 0x93, 0x19, 0x87, 0xe7, 0x0a, 0x2e, 0xb9, 0x4a, 0x10, 0x1b, 0xb4, 0x34, 0x4b, 0x90, 0xbb, 0xf2, 0xe0,
0x98, 0xf0, 0x13, 0x01, 0xab, 0x7c, 0xeb, 0x25, 0xa5, 0xe2, 0x98, 0x44, 0x3c, 0x79, 0x7f, 0x39, 0x59, 0x0c, 0x01, 0x4c, 0x0d, 0x2d, 0x71, 0xf1,
0x7d, 0x09, 0xe2, 0x42, 0x33, 0xd4, 0xeb, 0xcc, 0x9b, 0x70, 0xf6, 0x0f, 0xbd, 0xda, 0x1a, 0x78, 0xcf, 0x26, 0x6f, 0xb5, 0xa9, 0x07, 0x20, 0xe6,
0xf0, 0xb2, 0x99, 0xcc, 0x4f, 0x64, 0xc4, 0x69, 0x12, 0xea, 0x56, 0xfe, 0x8c, 0xd0, 0xad, 0xd4, 0xca, 0x24, 0x6c, 0xc5, 0x28, 0x1d, 0xfb, 0xcc,
0x50, 0x0e, 0x02, 0x1f, 0x6d, 0x7a, 0x79, 0x62, 0xaa, 0x2e, 0x52, 0xaf, 0xe7, 0x93, 0x72, 0x99, 0x61, 0x63, 0x60, 0x4c, 0x5c, 0xa9, 0xb6, 0x15,
0xa3, 0xed, 0xcd, 0xa7, 0x45, 0xe6, 0x86, 0xed, 0xa1, 0x73, 0x5b, 0x1e, 0x32, 0xa4, 0xbc, 0x1f, 0xf6, 0x63, 0x61, 0x2c, 0x26, 0xa7, 0x0e, 0x5f,
0x49, 0x4f, 0x92, 0x50, 0x83, 0x99, 0x3c, 0xf4, 0xf6, 0xa8, 0x49, 0xd7, 0x1b, 0x25, 0xce, 0x3f, 0x64, 0xdf, 0x6d, 0xb0, 0x8f, 0xd2, 0xe9, 0x3b,
0x08, 0xf7, 0xdc, 0x28, 0x2c, 0xe6, 0x22, 0x6f, 0xf8, 0xfa, 0xba, 0x9e, 0x35, 0xd0, 0x59, 0x81, 0x22, 0xf1, 0x65, 0x86, 0x15, 0x10, 0xe8, 0xa7,
0x0a, 0xcf, 0x72, 0x74, 0x76, 0x75, 0x99, 0x4d, 0x3d, 0x9a, 0x4c, 0x54, 0xa1, 0x6f, 0xb4, 0x34, 0x1c, 0x79, 0xd5, 0x9e, 0x8d, 0xc8, 0xa5, 0xbb,
0xcd, 0xf8, 0x54, 0xf0, 0xbd, 0x73, 0xe9, 0x4f, 0x29, 0xd0, 0xe1, 0x24, 0x82, 0x71, 0x81, 0x00, 0x34, 0x55, 0x6b, 0x96, 0x56, 0x13, 0x0e, 0xe7,
0x94, 0x52, 0xd6, 0x60, 0x80, 0x71, 0x24, 0x95, 0x92, 0x01, 0x0e, 0xa9, 0x39, 0xa2, 0x6f, 0xbe, 0x54, 0x2a, 0x13, 0x03, 0x13, 0xd2, 0x1d, 0x71,
0x7e, 0x64, 0x2e, 0xed, 0x51, 0xcc, 0xd2, 0xff, 0xfd, 0x0b, 0x9a, 0xbe, 0x09, 0x00, 0xe1, 0x8d, 0x59, 0xb5, 0x44, 0x02,
}; };
EXPECT_EQ(Bytes(ciphertext), Bytes(kExpectedCiphertext)); EXPECT_EQ(Bytes(ciphertext), Bytes(kExpectedCiphertext));
static const uint8_t kExpectedSharedKey[HRSS_KEY_BYTES] = { static const uint8_t kExpectedSharedKey[HRSS_KEY_BYTES] = {
0xbc, 0x98, 0x9c, 0x9c, 0x1f, 0x57, 0x6f, 0x38, 0x0b, 0x5d, 0xc2, 0x57, 0xf2, 0x77, 0xb2, 0xf3, 0x7f, 0xd0, 0x71, 0xb6, 0x7e, 0x64,
0x23, 0x7d, 0x01, 0xae, 0x63, 0x17, 0xe8, 0xe4, 0xb2, 0x02, 0xa7, 0x0f, 0x85, 0x1f, 0x6d, 0x3b, 0xd1, 0x7a, 0x6e, 0x01, 0x04, 0xde,
0xc4, 0x3a, 0x1b, 0x5a, 0xf3, 0xf8, 0xb5, 0xea, 0x6e, 0x22, 0x0f, 0x9e, 0x03, 0x95, 0x55, 0x60, 0xce, 0xda, 0x32, 0x71,
}; };
EXPECT_EQ(Bytes(shared_key), Bytes(kExpectedSharedKey)); EXPECT_EQ(Bytes(shared_key), Bytes(kExpectedSharedKey));
@ -472,9 +473,9 @@ TEST(HRSS, Golden) {
HRSS_decap(shared_key, &priv, ciphertext, sizeof(ciphertext)); HRSS_decap(shared_key, &priv, ciphertext, sizeof(ciphertext));
static const uint8_t kExpectedFailureKey[HRSS_KEY_BYTES] = { static const uint8_t kExpectedFailureKey[HRSS_KEY_BYTES] = {
0x8e, 0x19, 0xfe, 0x2b, 0x12, 0x67, 0xef, 0x9a, 0x63, 0x4d, 0x79, 0x13, 0xf7, 0xed, 0x51, 0x00, 0xbc, 0xca, 0x29, 0xdf, 0xb0, 0xd0,
0x33, 0x8c, 0xce, 0xbf, 0x03, 0xdb, 0x9c, 0xc4, 0xc1, 0x70, 0xe1, 0x5e, 0xa1, 0x9d, 0x15, 0xb2, 0xf6, 0x23, 0x94, 0xfd, 0x93, 0x74,
0x32, 0xa6, 0xb3, 0xd3, 0xa1, 0x43, 0x3c, 0xf1, 0x1f, 0x5a, 0x14, 0x46, 0x85, 0x61, 0x8b, 0x87, 0x30, 0xd3, 0x8d, 0xad,
}; };
EXPECT_EQ(Bytes(shared_key), Bytes(kExpectedFailureKey)); EXPECT_EQ(Bytes(shared_key), Bytes(kExpectedFailureKey));
} }

5
include/openssl/hrss.h
View File

@ -38,9 +38,8 @@ struct HRSS_public_key {
// HRSS_SAMPLE_BYTES is the number of bytes of entropy needed to generate a // HRSS_SAMPLE_BYTES is the number of bytes of entropy needed to generate a
// short vector. There are 701 coefficients, but the final one is always set to // short vector. There are 701 coefficients, but the final one is always set to
// zero when sampling. Otherwise, one byte of input is enough to generate two // zero when sampling. Otherwise, we need one byte of input per coefficient.
// coefficients. #define HRSS_SAMPLE_BYTES (701 - 1)
#define HRSS_SAMPLE_BYTES ((701 - 1) / 2)
// HRSS_GENERATE_KEY_BYTES is the number of bytes of entropy needed to generate // HRSS_GENERATE_KEY_BYTES is the number of bytes of entropy needed to generate
// an HRSS key pair. // an HRSS key pair.
#define HRSS_GENERATE_KEY_BYTES (HRSS_SAMPLE_BYTES + HRSS_SAMPLE_BYTES + 32) #define HRSS_GENERATE_KEY_BYTES (HRSS_SAMPLE_BYTES + HRSS_SAMPLE_BYTES + 32)