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update master-with-bazel from master branch

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BoringSSL Robot
2023-02-14 16:00:45 +00:00
parent 56a7b8fec8 3950d6ce25
commit c00d7ca810
9 changed files with 247 additions and 31 deletions
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src/crypto/ec_extra/hash_to_curve.c
+78
View File
@@ -375,6 +375,18 @@ static int felem_from_u8(const EC_GROUP *group, EC_FELEM *out, uint8_t a) {
return ec_felem_from_bytes(group, out, bytes, len);
}
// kP256Sqrt10 is sqrt(10) in P-256's field. It was computed as follows in
// python3:
//
// p = 2**256 - 2**224 + 2**192 + 2**96 - 1
// c2 = pow(10, (p+1)//4, p)
// assert pow(c2, 2, p) == 10
// ", ".join("0x%02x" % b for b in c2.to_bytes(256//8, 'big'))
static const uint8_t kP256Sqrt10[] = {
0xda, 0x53, 0x8e, 0x3b, 0xe1, 0xd8, 0x9b, 0x99, 0xc9, 0x78, 0xfc,
0x67, 0x51, 0x80, 0xaa, 0xb2, 0x7b, 0x8d, 0x1f, 0xf8, 0x4c, 0x55,
0xd5, 0xb6, 0x2c, 0xcd, 0x34, 0x27, 0xe4, 0x33, 0xc4, 0x7f};
// kP384Sqrt12 is sqrt(12) in P-384's field. It was computed as follows in
// python3:
//
@@ -388,6 +400,72 @@ static const uint8_t kP384Sqrt12[] = {
0x1f, 0x87, 0x2f, 0xcb, 0x9c, 0xcb, 0x80, 0xc5, 0x3c, 0x0d, 0xe1, 0xf8,
0xa8, 0x0f, 0x7e, 0x19, 0x14, 0xe2, 0xec, 0x69, 0xf5, 0xa6, 0x26, 0xb3};
int ec_hash_to_curve_p256_xmd_sha256_sswu(const EC_GROUP *group,
EC_RAW_POINT *out, const uint8_t *dst,
size_t dst_len, const uint8_t *msg,
size_t msg_len) {
// See section 8.3 of draft-irtf-cfrg-hash-to-curve-16.
if (EC_GROUP_get_curve_name(group) != NID_X9_62_prime256v1) {
OPENSSL_PUT_ERROR(EC, EC_R_GROUP_MISMATCH);
return 0;
}
// Z = -10, c2 = sqrt(10)
EC_FELEM Z, c2;
if (!felem_from_u8(group, &Z, 10) ||
!ec_felem_from_bytes(group, &c2, kP256Sqrt10, sizeof(kP256Sqrt10))) {
return 0;
}
ec_felem_neg(group, &Z, &Z);
return hash_to_curve(group, EVP_sha256(), &Z, &c2, /*k=*/128, out, dst,
dst_len, msg, msg_len);
}
int EC_hash_to_curve_p256_xmd_sha256_sswu(const EC_GROUP *group, EC_POINT *out,
const uint8_t *dst, size_t dst_len,
const uint8_t *msg, size_t msg_len) {
if (EC_GROUP_cmp(group, out->group, NULL) != 0) {
OPENSSL_PUT_ERROR(EC, EC_R_INCOMPATIBLE_OBJECTS);
return 0;
}
return ec_hash_to_curve_p256_xmd_sha256_sswu(group, &out->raw, dst, dst_len,
msg, msg_len);
}
int ec_hash_to_curve_p384_xmd_sha384_sswu(const EC_GROUP *group,
EC_RAW_POINT *out, const uint8_t *dst,
size_t dst_len, const uint8_t *msg,
size_t msg_len) {
// See section 8.3 of draft-irtf-cfrg-hash-to-curve-16.
if (EC_GROUP_get_curve_name(group) != NID_secp384r1) {
OPENSSL_PUT_ERROR(EC, EC_R_GROUP_MISMATCH);
return 0;
}
// Z = -12, c2 = sqrt(12)
EC_FELEM Z, c2;
if (!felem_from_u8(group, &Z, 12) ||
!ec_felem_from_bytes(group, &c2, kP384Sqrt12, sizeof(kP384Sqrt12))) {
return 0;
}
ec_felem_neg(group, &Z, &Z);
return hash_to_curve(group, EVP_sha384(), &Z, &c2, /*k=*/192, out, dst,
dst_len, msg, msg_len);
}
int EC_hash_to_curve_p384_xmd_sha384_sswu(const EC_GROUP *group, EC_POINT *out,
const uint8_t *dst, size_t dst_len,
const uint8_t *msg, size_t msg_len) {
if (EC_GROUP_cmp(group, out->group, NULL) != 0) {
OPENSSL_PUT_ERROR(EC, EC_R_INCOMPATIBLE_OBJECTS);
return 0;
}
return ec_hash_to_curve_p384_xmd_sha384_sswu(group, &out->raw, dst, dst_len,
msg, msg_len);
}
int ec_hash_to_curve_p384_xmd_sha512_sswu_draft07(
const EC_GROUP *group, EC_RAW_POINT *out, const uint8_t *dst,
size_t dst_len, const uint8_t *msg, size_t msg_len) {
src/crypto/ec_extra/internal.h
+17 -5
View File
@@ -26,11 +26,23 @@ extern "C" {
// Hash-to-curve.
//
// The following functions implement primitives from
// draft-irtf-cfrg-hash-to-curve. The |dst| parameter in each function is the
// domain separation tag and must be unique for each protocol and between the
// |hash_to_curve| and |hash_to_scalar| variants. See section 3.1 of the spec
// for additional guidance on this parameter.
// Internal |EC_RAW_POINT| versions of the corresponding public APIs.
// ec_hash_to_curve_p256_xmd_sha256_sswu hashes |msg| to a point on |group| and
// writes the result to |out|, implementing the P256_XMD:SHA-256_SSWU_RO_ suite
// from draft-irtf-cfrg-hash-to-curve-16. It returns one on success and zero on
// error.
OPENSSL_EXPORT int ec_hash_to_curve_p256_xmd_sha256_sswu(
const EC_GROUP *group, EC_RAW_POINT *out, const uint8_t *dst,
size_t dst_len, const uint8_t *msg, size_t msg_len);
// ec_hash_to_curve_p384_xmd_sha384_sswu hashes |msg| to a point on |group| and
// writes the result to |out|, implementing the P384_XMD:SHA-384_SSWU_RO_ suite
// from draft-irtf-cfrg-hash-to-curve-16. It returns one on success and zero on
// error.
OPENSSL_EXPORT int ec_hash_to_curve_p384_xmd_sha384_sswu(
const EC_GROUP *group, EC_RAW_POINT *out, const uint8_t *dst,
size_t dst_len, const uint8_t *msg, size_t msg_len);
// ec_hash_to_curve_p384_xmd_sha512_sswu_draft07 hashes |msg| to a point on
// |group| and writes the result to |out|, implementing the
src/crypto/fipsmodule/ec/ec_montgomery.c
+5 -5
View File
@@ -156,8 +156,8 @@ int ec_GFp_mont_felem_from_bytes(const EC_GROUP *group, EC_FELEM *out,
return 1;
}
static void ec_GFp_mont_felem_reduce(const EC_GROUP *group, EC_FELEM *out,
const BN_ULONG *words, size_t num) {
void ec_GFp_mont_felem_reduce(const EC_GROUP *group, EC_FELEM *out,
const BN_ULONG *words, size_t num) {
// Convert "from" Montgomery form so the value is reduced mod p.
bn_from_montgomery_small(out->words, group->field.width, words, num,
group->mont);
@@ -167,9 +167,9 @@ static void ec_GFp_mont_felem_reduce(const EC_GROUP *group, EC_FELEM *out,
ec_GFp_mont_felem_to_montgomery(group, out, out);
}
static void ec_GFp_mont_felem_exp(const EC_GROUP *group, EC_FELEM *out,
const EC_FELEM *a, const BN_ULONG *exp,
size_t num_exp) {
void ec_GFp_mont_felem_exp(const EC_GROUP *group, EC_FELEM *out,
const EC_FELEM *a, const BN_ULONG *exp,
size_t num_exp) {
bn_mod_exp_mont_small(out->words, a->words, group->field.width, exp, num_exp,
group->mont);
}
src/crypto/fipsmodule/ec/ec_test.cc
+83 -15
View File
@@ -1207,8 +1207,18 @@ TEST(ECTest, DeriveFromSecret) {
}
TEST(ECTest, HashToCurve) {
auto hash_to_curve_p384_sha512_draft07 =
[](const EC_GROUP *group, EC_POINT *out, const uint8_t *dst,
size_t dst_len, const uint8_t *msg, size_t msg_len) -> int {
if (EC_GROUP_cmp(group, out->group, NULL) != 0) {
return 0;
}
return ec_hash_to_curve_p384_xmd_sha512_sswu_draft07(group, &out->raw, dst,
dst_len, msg, msg_len);
};
struct HashToCurveTest {
int (*hash_to_curve)(const EC_GROUP *group, EC_RAW_POINT *out,
int (*hash_to_curve)(const EC_GROUP *group, EC_POINT *out,
const uint8_t *dst, size_t dst_len, const uint8_t *msg,
size_t msg_len);
int curve_nid;
@@ -1218,26 +1228,71 @@ TEST(ECTest, HashToCurve) {
const char *y_hex;
};
static const HashToCurveTest kTests[] = {
// See draft-irtf-cfrg-hash-to-curve-16, appendix J.1.1.
{&EC_hash_to_curve_p256_xmd_sha256_sswu, NID_X9_62_prime256v1,
"QUUX-V01-CS02-with-P256_XMD:SHA-256_SSWU_RO_", "",
"2c15230b26dbc6fc9a37051158c95b79656e17a1a920b11394ca91"
"c44247d3e4",
"8a7a74985cc5c776cdfe4b1f19884970453912e9d31528c060be9a"
"b5c43e8415"},
{&EC_hash_to_curve_p256_xmd_sha256_sswu, NID_X9_62_prime256v1,
"QUUX-V01-CS02-with-P256_XMD:SHA-256_SSWU_RO_", "abc",
"0bb8b87485551aa43ed54f009230450b492fead5f1cc91658775da"
"c4a3388a0f",
"5c41b3d0731a27a7b14bc0bf0ccded2d8751f83493404c84a88e71"
"ffd424212e"},
{&EC_hash_to_curve_p256_xmd_sha256_sswu, NID_X9_62_prime256v1,
"QUUX-V01-CS02-with-P256_XMD:SHA-256_SSWU_RO_", "abcdef0123456789",
"65038ac8f2b1def042a5df0b33b1f4eca6bff7cb0f9c6c15268118"
"64e544ed80",
"cad44d40a656e7aff4002a8de287abc8ae0482b5ae825822bb870d"
"6df9b56ca3"},
{&EC_hash_to_curve_p256_xmd_sha256_sswu, NID_X9_62_prime256v1,
"QUUX-V01-CS02-with-P256_XMD:SHA-256_SSWU_RO_",
"q128_qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq"
"qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq"
"qqqqqqqqqqqqqqqqqqqqqqqqq",
"4be61ee205094282ba8a2042bcb48d88dfbb609301c49aa8b07853"
"3dc65a0b5d",
"98f8df449a072c4721d241a3b1236d3caccba603f916ca680f4539"
"d2bfb3c29e"},
{&EC_hash_to_curve_p256_xmd_sha256_sswu, NID_X9_62_prime256v1,
"QUUX-V01-CS02-with-P256_XMD:SHA-256_SSWU_RO_",
"a512_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"457ae2981f70ca85d8e24c308b14db22f3e3862c5ea0f652ca38b5"
"e49cd64bc5",
"ecb9f0eadc9aeed232dabc53235368c1394c78de05dd96893eefa6"
"2b0f4757dc"},
// See draft-irtf-cfrg-hash-to-curve-07, appendix G.2.1.
{&ec_hash_to_curve_p384_xmd_sha512_sswu_draft07, NID_secp384r1,
{hash_to_curve_p384_sha512_draft07, NID_secp384r1,
"P384_XMD:SHA-512_SSWU_RO_TESTGEN", "",
"2fc0b9efdd63a8e43b4db88dc12f03c798f6fd91bccac0c9096185"
"4386e58fdc54fc2a01f0f358759054ce1f9b762025",
"949b936fabb72cdb02cd7980b86cb6a3adf286658e81301648851d"
"b8a49d9bec00ccb57698d559fc5960fa5030a8e54b"},
{&ec_hash_to_curve_p384_xmd_sha512_sswu_draft07, NID_secp384r1,
{hash_to_curve_p384_sha512_draft07, NID_secp384r1,
"P384_XMD:SHA-512_SSWU_RO_TESTGEN", "abc",
"4f3338035391e8ce8ce40c974136f0edc97f392ffd44a643338741"
"8ed1b8c2603487e1688ec151f048fbc6b2c138c92f",
"152b90aef6558be328a3168855fb1906452e7167b0f7c8a56ff9d4"
"fa87d6fb522cdf8e409db54418b2c764fd26260757"},
{&ec_hash_to_curve_p384_xmd_sha512_sswu_draft07, NID_secp384r1,
{hash_to_curve_p384_sha512_draft07, NID_secp384r1,
"P384_XMD:SHA-512_SSWU_RO_TESTGEN", "abcdef0123456789",
"e9e5d7ac397e123d060ad44301cbc8eb972f6e64ebcff29dcc9b9a"
"10357902aace2240c580fec85e5b427d98b4e80703",
"916cb8963521ad75105be43cc4148e5a5bbb4fcf107f1577e4f7fa"
"3ca58cd786aa76890c8e687d2353393bc16c78ec4d"},
{&ec_hash_to_curve_p384_xmd_sha512_sswu_draft07, NID_secp384r1,
{hash_to_curve_p384_sha512_draft07, NID_secp384r1,
"P384_XMD:SHA-512_SSWU_RO_TESTGEN",
"a512_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
@@ -1264,7 +1319,7 @@ TEST(ECTest, HashToCurve) {
bssl::UniquePtr<EC_POINT> p(EC_POINT_new(group.get()));
ASSERT_TRUE(p);
ASSERT_TRUE(test.hash_to_curve(
group.get(), &p->raw, reinterpret_cast<const uint8_t *>(test.dst),
group.get(), p.get(), reinterpret_cast<const uint8_t *>(test.dst),
strlen(test.dst), reinterpret_cast<const uint8_t *>(test.msg),
strlen(test.msg)));
@@ -1281,17 +1336,30 @@ TEST(ECTest, HashToCurve) {
// hash-to-curve functions should check for the wrong group.
bssl::UniquePtr<EC_GROUP> p224(EC_GROUP_new_by_curve_name(NID_secp224r1));
ASSERT_TRUE(p224);
EC_RAW_POINT p;
static const uint8_t kDST[] = {0, 1, 2, 3};
static const uint8_t kMessage[] = {4, 5, 6, 7};
EXPECT_FALSE(ec_hash_to_curve_p384_xmd_sha512_sswu_draft07(
p224.get(), &p, kDST, sizeof(kDST), kMessage, sizeof(kMessage)));
// Zero-length DSTs are not allowed.
bssl::UniquePtr<EC_GROUP> p384(EC_GROUP_new_by_curve_name(NID_secp384r1));
ASSERT_TRUE(p384);
EXPECT_FALSE(ec_hash_to_curve_p384_xmd_sha512_sswu_draft07(
p384.get(), &p, nullptr, 0, kMessage, sizeof(kMessage)));
EC_RAW_POINT raw;
bssl::UniquePtr<EC_POINT> p_p384(EC_POINT_new(p384.get()));
ASSERT_TRUE(p_p384);
bssl::UniquePtr<EC_POINT> p_p224(EC_POINT_new(p224.get()));
ASSERT_TRUE(p_p224);
static const uint8_t kDST[] = {0, 1, 2, 3};
static const uint8_t kMessage[] = {4, 5, 6, 7};
EXPECT_FALSE(ec_hash_to_curve_p384_xmd_sha384_sswu(
p224.get(), &raw, kDST, sizeof(kDST), kMessage, sizeof(kMessage)));
EXPECT_FALSE(EC_hash_to_curve_p384_xmd_sha384_sswu(
p224.get(), p_p224.get(), kDST, sizeof(kDST), kMessage,
sizeof(kMessage)));
EXPECT_FALSE(EC_hash_to_curve_p384_xmd_sha384_sswu(
p224.get(), p_p384.get(), kDST, sizeof(kDST), kMessage,
sizeof(kMessage)));
EXPECT_FALSE(EC_hash_to_curve_p384_xmd_sha384_sswu(
p384.get(), p_p224.get(), kDST, sizeof(kDST), kMessage,
sizeof(kMessage)));
// Zero-length DSTs are not allowed.
EXPECT_FALSE(ec_hash_to_curve_p384_xmd_sha384_sswu(
p384.get(), &raw, nullptr, 0, kMessage, sizeof(kMessage)));
}
TEST(ECTest, HashToScalar) {
src/crypto/fipsmodule/ec/internal.h
+11
View File
@@ -560,6 +560,12 @@ struct ec_method_st {
//
// This function is used in hash-to-curve and may be NULL in curves not used
// with hash-to-curve.
//
// TODO(https://crbug.com/boringssl/567): hash-to-curve uses this as part of
// computing a square root, which is what compressed coordinates ultimately
// needs to avoid |BIGNUM|. Can we unify this a bit? By generalizing to
// arbitrary exponentiation, we also miss an opportunity to use a specialized
// addition chain.
void (*felem_exp)(const EC_GROUP *group, EC_FELEM *out, const EC_FELEM *a,
const BN_ULONG *exp, size_t num_exp);
@@ -650,6 +656,11 @@ void ec_GFp_mont_mul_precomp(const EC_GROUP *group, EC_RAW_POINT *r,
const EC_PRECOMP *p0, const EC_SCALAR *scalar0,
const EC_PRECOMP *p1, const EC_SCALAR *scalar1,
const EC_PRECOMP *p2, const EC_SCALAR *scalar2);
void ec_GFp_mont_felem_reduce(const EC_GROUP *group, EC_FELEM *out,
const BN_ULONG *words, size_t num);
void ec_GFp_mont_felem_exp(const EC_GROUP *group, EC_FELEM *out,
const EC_FELEM *a, const BN_ULONG *exp,
size_t num_exp);
// ec_compute_wNAF writes the modified width-(w+1) Non-Adjacent Form (wNAF) of
// |scalar| to |out|. |out| must have room for |bits| + 1 elements, each of
src/crypto/fipsmodule/ec/p256-nistz.c
+4
View File
@@ -625,6 +625,10 @@ DEFINE_METHOD_FUNCTION(EC_METHOD, EC_GFp_nistz256_method) {
out->felem_sqr = ec_GFp_mont_felem_sqr;
out->felem_to_bytes = ec_GFp_mont_felem_to_bytes;
out->felem_from_bytes = ec_GFp_mont_felem_from_bytes;
out->felem_reduce = ec_GFp_mont_felem_reduce;
// TODO(davidben): This should use the specialized field arithmetic
// implementation, rather than the generic one.
out->felem_exp = ec_GFp_mont_felem_exp;
out->scalar_inv0_montgomery = ecp_nistz256_inv0_mod_ord;
out->scalar_to_montgomery_inv_vartime =
ecp_nistz256_scalar_to_montgomery_inv_vartime;
src/crypto/fipsmodule/ec/p256.c
+4
View File
@@ -739,6 +739,10 @@ DEFINE_METHOD_FUNCTION(EC_METHOD, EC_GFp_nistp256_method) {
out->felem_sqr = ec_GFp_mont_felem_sqr;
out->felem_to_bytes = ec_GFp_mont_felem_to_bytes;
out->felem_from_bytes = ec_GFp_mont_felem_from_bytes;
out->felem_reduce = ec_GFp_mont_felem_reduce;
// TODO(davidben): This should use the specialized field arithmetic
// implementation, rather than the generic one.
out->felem_exp = ec_GFp_mont_felem_exp;
out->scalar_inv0_montgomery = ec_simple_scalar_inv0_montgomery;
out->scalar_to_montgomery_inv_vartime =
ec_simple_scalar_to_montgomery_inv_vartime;
src/include/openssl/ec.h
+25
View File
@@ -319,6 +319,31 @@ OPENSSL_EXPORT int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r,
const BIGNUM *m, BN_CTX *ctx);
// Hash-to-curve.
//
// The following functions implement primitives from
// draft-irtf-cfrg-hash-to-curve-16. The |dst| parameter in each function is the
// domain separation tag and must be unique for each protocol and between the
// |hash_to_curve| and |hash_to_scalar| variants. See section 3.1 of the spec
// for additional guidance on this parameter.
// EC_hash_to_curve_p256_xmd_sha256_sswu hashes |msg| to a point on |group| and
// writes the result to |out|, implementing the P256_XMD:SHA-256_SSWU_RO_ suite
// from draft-irtf-cfrg-hash-to-curve-16. It returns one on success and zero on
// error.
OPENSSL_EXPORT int EC_hash_to_curve_p256_xmd_sha256_sswu(
const EC_GROUP *group, EC_POINT *out, const uint8_t *dst, size_t dst_len,
const uint8_t *msg, size_t msg_len);
// EC_hash_to_curve_p384_xmd_sha384_sswu hashes |msg| to a point on |group| and
// writes the result to |out|, implementing the P384_XMD:SHA-384_SSWU_RO_ suite
// from draft-irtf-cfrg-hash-to-curve-16. It returns one on success and zero on
// error.
OPENSSL_EXPORT int EC_hash_to_curve_p384_xmd_sha384_sswu(
const EC_GROUP *group, EC_POINT *out, const uint8_t *dst, size_t dst_len,
const uint8_t *msg, size_t msg_len);
// Deprecated functions.
// EC_GROUP_new_curve_GFp creates a new, arbitrary elliptic curve group based
src/tool/speed.cc
+20 -6
View File
@@ -968,24 +968,38 @@ static bool SpeedHashToCurve(const std::string &selected) {
TimeResults results;
{
EC_GROUP *group = EC_GROUP_new_by_curve_name(NID_secp384r1);
if (group == NULL) {
const EC_GROUP *p256 = EC_GROUP_new_by_curve_name(NID_X9_62_prime256v1);
if (p256 == NULL) {
return false;
}
if (!TimeFunction(&results, [&]() -> bool {
EC_RAW_POINT out;
return ec_hash_to_curve_p384_xmd_sha512_sswu_draft07(
group, &out, kLabel, sizeof(kLabel), input, sizeof(input));
return ec_hash_to_curve_p256_xmd_sha256_sswu(
p256, &out, kLabel, sizeof(kLabel), input, sizeof(input));
})) {
fprintf(stderr, "hash-to-curve failed.\n");
return false;
}
results.Print("hash-to-curve P384_XMD:SHA-512_SSWU_RO_");
results.Print("hash-to-curve P256_XMD:SHA-256_SSWU_RO_");
const EC_GROUP *p384 = EC_GROUP_new_by_curve_name(NID_secp384r1);
if (p384 == NULL) {
return false;
}
if (!TimeFunction(&results, [&]() -> bool {
EC_RAW_POINT out;
return ec_hash_to_curve_p384_xmd_sha384_sswu(
p384, &out, kLabel, sizeof(kLabel), input, sizeof(input));
})) {
fprintf(stderr, "hash-to-curve failed.\n");
return false;
}
results.Print("hash-to-curve P384_XMD:SHA-384_SSWU_RO_");
if (!TimeFunction(&results, [&]() -> bool {
EC_SCALAR out;
return ec_hash_to_scalar_p384_xmd_sha512_draft07(
group, &out, kLabel, sizeof(kLabel), input, sizeof(input));
p384, &out, kLabel, sizeof(kLabel), input, sizeof(input));
})) {
fprintf(stderr, "hash-to-scalar failed.\n");
return false;