| /* Copyright 2016-2017 INRIA and Microsoft Corporation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "Hacl_Poly1305_32.h" |
| |
| inline static void |
| Hacl_Bignum_Modulo_reduce(uint32_t *b) |
| { |
| uint32_t b0 = b[0U]; |
| b[0U] = (b0 << (uint32_t)2U) + b0; |
| } |
| |
| inline static void |
| Hacl_Bignum_Modulo_carry_top(uint32_t *b) |
| { |
| uint32_t b4 = b[4U]; |
| uint32_t b0 = b[0U]; |
| uint32_t b4_26 = b4 >> (uint32_t)26U; |
| b[4U] = b4 & (uint32_t)0x3ffffffU; |
| b[0U] = (b4_26 << (uint32_t)2U) + b4_26 + b0; |
| } |
| |
| inline static void |
| Hacl_Bignum_Modulo_carry_top_wide(uint64_t *b) |
| { |
| uint64_t b4 = b[4U]; |
| uint64_t b0 = b[0U]; |
| uint64_t b4_ = b4 & (uint64_t)(uint32_t)0x3ffffffU; |
| uint32_t b4_26 = (uint32_t)(b4 >> (uint32_t)26U); |
| uint64_t b0_ = b0 + (uint64_t)((b4_26 << (uint32_t)2U) + b4_26); |
| b[4U] = b4_; |
| b[0U] = b0_; |
| } |
| |
| inline static void |
| Hacl_Bignum_Fproduct_copy_from_wide_(uint32_t *output, uint64_t *input) |
| { |
| for (uint32_t i = (uint32_t)0U; i < (uint32_t)5U; i = i + (uint32_t)1U) { |
| uint64_t xi = input[i]; |
| output[i] = (uint32_t)xi; |
| } |
| } |
| |
| inline static void |
| Hacl_Bignum_Fproduct_sum_scalar_multiplication_(uint64_t *output, uint32_t *input, uint32_t s) |
| { |
| for (uint32_t i = (uint32_t)0U; i < (uint32_t)5U; i = i + (uint32_t)1U) { |
| uint64_t xi = output[i]; |
| uint32_t yi = input[i]; |
| uint64_t x_wide = (uint64_t)yi; |
| uint64_t y_wide = (uint64_t)s; |
| output[i] = xi + x_wide * y_wide; |
| } |
| } |
| |
| inline static void |
| Hacl_Bignum_Fproduct_carry_wide_(uint64_t *tmp) |
| { |
| for (uint32_t i = (uint32_t)0U; i < (uint32_t)4U; i = i + (uint32_t)1U) { |
| uint32_t ctr = i; |
| uint64_t tctr = tmp[ctr]; |
| uint64_t tctrp1 = tmp[ctr + (uint32_t)1U]; |
| uint32_t r0 = (uint32_t)tctr & (uint32_t)0x3ffffffU; |
| uint64_t c = tctr >> (uint32_t)26U; |
| tmp[ctr] = (uint64_t)r0; |
| tmp[ctr + (uint32_t)1U] = tctrp1 + c; |
| } |
| } |
| |
| inline static void |
| Hacl_Bignum_Fproduct_carry_limb_(uint32_t *tmp) |
| { |
| for (uint32_t i = (uint32_t)0U; i < (uint32_t)4U; i = i + (uint32_t)1U) { |
| uint32_t ctr = i; |
| uint32_t tctr = tmp[ctr]; |
| uint32_t tctrp1 = tmp[ctr + (uint32_t)1U]; |
| uint32_t r0 = tctr & (uint32_t)0x3ffffffU; |
| uint32_t c = tctr >> (uint32_t)26U; |
| tmp[ctr] = r0; |
| tmp[ctr + (uint32_t)1U] = tctrp1 + c; |
| } |
| } |
| |
| inline static void |
| Hacl_Bignum_Fmul_shift_reduce(uint32_t *output) |
| { |
| uint32_t tmp = output[4U]; |
| for (uint32_t i = (uint32_t)0U; i < (uint32_t)4U; i = i + (uint32_t)1U) { |
| uint32_t ctr = (uint32_t)5U - i - (uint32_t)1U; |
| uint32_t z = output[ctr - (uint32_t)1U]; |
| output[ctr] = z; |
| } |
| output[0U] = tmp; |
| Hacl_Bignum_Modulo_reduce(output); |
| } |
| |
| static void |
| Hacl_Bignum_Fmul_mul_shift_reduce_(uint64_t *output, uint32_t *input, uint32_t *input2) |
| { |
| for (uint32_t i = (uint32_t)0U; i < (uint32_t)4U; i = i + (uint32_t)1U) { |
| uint32_t input2i = input2[i]; |
| Hacl_Bignum_Fproduct_sum_scalar_multiplication_(output, input, input2i); |
| Hacl_Bignum_Fmul_shift_reduce(input); |
| } |
| uint32_t i = (uint32_t)4U; |
| uint32_t input2i = input2[i]; |
| Hacl_Bignum_Fproduct_sum_scalar_multiplication_(output, input, input2i); |
| } |
| |
| inline static void |
| Hacl_Bignum_Fmul_fmul(uint32_t *output, uint32_t *input, uint32_t *input2) |
| { |
| uint32_t tmp[5U] = { 0U }; |
| memcpy(tmp, input, (uint32_t)5U * sizeof input[0U]); |
| uint64_t t[5U] = { 0U }; |
| Hacl_Bignum_Fmul_mul_shift_reduce_(t, tmp, input2); |
| Hacl_Bignum_Fproduct_carry_wide_(t); |
| Hacl_Bignum_Modulo_carry_top_wide(t); |
| Hacl_Bignum_Fproduct_copy_from_wide_(output, t); |
| uint32_t i0 = output[0U]; |
| uint32_t i1 = output[1U]; |
| uint32_t i0_ = i0 & (uint32_t)0x3ffffffU; |
| uint32_t i1_ = i1 + (i0 >> (uint32_t)26U); |
| output[0U] = i0_; |
| output[1U] = i1_; |
| } |
| |
| inline static void |
| Hacl_Bignum_AddAndMultiply_add_and_multiply(uint32_t *acc, uint32_t *block, uint32_t *r) |
| { |
| for (uint32_t i = (uint32_t)0U; i < (uint32_t)5U; i = i + (uint32_t)1U) { |
| uint32_t xi = acc[i]; |
| uint32_t yi = block[i]; |
| acc[i] = xi + yi; |
| } |
| Hacl_Bignum_Fmul_fmul(acc, acc, r); |
| } |
| |
| inline static void |
| Hacl_Impl_Poly1305_32_poly1305_update( |
| Hacl_Impl_Poly1305_32_State_poly1305_state st, |
| uint8_t *m) |
| { |
| Hacl_Impl_Poly1305_32_State_poly1305_state scrut0 = st; |
| uint32_t *h = scrut0.h; |
| uint32_t *acc = h; |
| Hacl_Impl_Poly1305_32_State_poly1305_state scrut = st; |
| uint32_t *r = scrut.r; |
| uint32_t *r5 = r; |
| uint32_t tmp[5U] = { 0U }; |
| uint8_t *s0 = m; |
| uint8_t *s1 = m + (uint32_t)3U; |
| uint8_t *s2 = m + (uint32_t)6U; |
| uint8_t *s3 = m + (uint32_t)9U; |
| uint8_t *s4 = m + (uint32_t)12U; |
| uint32_t i0 = load32_le(s0); |
| uint32_t i1 = load32_le(s1); |
| uint32_t i2 = load32_le(s2); |
| uint32_t i3 = load32_le(s3); |
| uint32_t i4 = load32_le(s4); |
| uint32_t r0 = i0 & (uint32_t)0x3ffffffU; |
| uint32_t r1 = i1 >> (uint32_t)2U & (uint32_t)0x3ffffffU; |
| uint32_t r2 = i2 >> (uint32_t)4U & (uint32_t)0x3ffffffU; |
| uint32_t r3 = i3 >> (uint32_t)6U & (uint32_t)0x3ffffffU; |
| uint32_t r4 = i4 >> (uint32_t)8U; |
| tmp[0U] = r0; |
| tmp[1U] = r1; |
| tmp[2U] = r2; |
| tmp[3U] = r3; |
| tmp[4U] = r4; |
| uint32_t b4 = tmp[4U]; |
| uint32_t b4_ = (uint32_t)0x1000000U | b4; |
| tmp[4U] = b4_; |
| Hacl_Bignum_AddAndMultiply_add_and_multiply(acc, tmp, r5); |
| } |
| |
| inline static void |
| Hacl_Impl_Poly1305_32_poly1305_process_last_block_( |
| uint8_t *block, |
| Hacl_Impl_Poly1305_32_State_poly1305_state st, |
| uint8_t *m, |
| uint64_t rem_) |
| { |
| uint32_t tmp[5U] = { 0U }; |
| uint8_t *s0 = block; |
| uint8_t *s1 = block + (uint32_t)3U; |
| uint8_t *s2 = block + (uint32_t)6U; |
| uint8_t *s3 = block + (uint32_t)9U; |
| uint8_t *s4 = block + (uint32_t)12U; |
| uint32_t i0 = load32_le(s0); |
| uint32_t i1 = load32_le(s1); |
| uint32_t i2 = load32_le(s2); |
| uint32_t i3 = load32_le(s3); |
| uint32_t i4 = load32_le(s4); |
| uint32_t r0 = i0 & (uint32_t)0x3ffffffU; |
| uint32_t r1 = i1 >> (uint32_t)2U & (uint32_t)0x3ffffffU; |
| uint32_t r2 = i2 >> (uint32_t)4U & (uint32_t)0x3ffffffU; |
| uint32_t r3 = i3 >> (uint32_t)6U & (uint32_t)0x3ffffffU; |
| uint32_t r4 = i4 >> (uint32_t)8U; |
| tmp[0U] = r0; |
| tmp[1U] = r1; |
| tmp[2U] = r2; |
| tmp[3U] = r3; |
| tmp[4U] = r4; |
| Hacl_Impl_Poly1305_32_State_poly1305_state scrut0 = st; |
| uint32_t *h = scrut0.h; |
| Hacl_Impl_Poly1305_32_State_poly1305_state scrut = st; |
| uint32_t *r = scrut.r; |
| Hacl_Bignum_AddAndMultiply_add_and_multiply(h, tmp, r); |
| } |
| |
| inline static void |
| Hacl_Impl_Poly1305_32_poly1305_process_last_block( |
| Hacl_Impl_Poly1305_32_State_poly1305_state st, |
| uint8_t *m, |
| uint64_t rem_) |
| { |
| uint8_t zero1 = (uint8_t)0U; |
| KRML_CHECK_SIZE(zero1, (uint32_t)16U); |
| uint8_t block[16U]; |
| for (uint32_t _i = 0U; _i < (uint32_t)16U; ++_i) |
| block[_i] = zero1; |
| uint32_t i0 = (uint32_t)rem_; |
| uint32_t i = (uint32_t)rem_; |
| memcpy(block, m, i * sizeof m[0U]); |
| block[i0] = (uint8_t)1U; |
| Hacl_Impl_Poly1305_32_poly1305_process_last_block_(block, st, m, rem_); |
| } |
| |
| static void |
| Hacl_Impl_Poly1305_32_poly1305_last_pass(uint32_t *acc) |
| { |
| Hacl_Bignum_Fproduct_carry_limb_(acc); |
| Hacl_Bignum_Modulo_carry_top(acc); |
| uint32_t t0 = acc[0U]; |
| uint32_t t10 = acc[1U]; |
| uint32_t t20 = acc[2U]; |
| uint32_t t30 = acc[3U]; |
| uint32_t t40 = acc[4U]; |
| uint32_t t1_ = t10 + (t0 >> (uint32_t)26U); |
| uint32_t mask_261 = (uint32_t)0x3ffffffU; |
| uint32_t t0_ = t0 & mask_261; |
| uint32_t t2_ = t20 + (t1_ >> (uint32_t)26U); |
| uint32_t t1__ = t1_ & mask_261; |
| uint32_t t3_ = t30 + (t2_ >> (uint32_t)26U); |
| uint32_t t2__ = t2_ & mask_261; |
| uint32_t t4_ = t40 + (t3_ >> (uint32_t)26U); |
| uint32_t t3__ = t3_ & mask_261; |
| acc[0U] = t0_; |
| acc[1U] = t1__; |
| acc[2U] = t2__; |
| acc[3U] = t3__; |
| acc[4U] = t4_; |
| Hacl_Bignum_Modulo_carry_top(acc); |
| uint32_t t00 = acc[0U]; |
| uint32_t t1 = acc[1U]; |
| uint32_t t2 = acc[2U]; |
| uint32_t t3 = acc[3U]; |
| uint32_t t4 = acc[4U]; |
| uint32_t t1_0 = t1 + (t00 >> (uint32_t)26U); |
| uint32_t t0_0 = t00 & (uint32_t)0x3ffffffU; |
| uint32_t t2_0 = t2 + (t1_0 >> (uint32_t)26U); |
| uint32_t t1__0 = t1_0 & (uint32_t)0x3ffffffU; |
| uint32_t t3_0 = t3 + (t2_0 >> (uint32_t)26U); |
| uint32_t t2__0 = t2_0 & (uint32_t)0x3ffffffU; |
| uint32_t t4_0 = t4 + (t3_0 >> (uint32_t)26U); |
| uint32_t t3__0 = t3_0 & (uint32_t)0x3ffffffU; |
| acc[0U] = t0_0; |
| acc[1U] = t1__0; |
| acc[2U] = t2__0; |
| acc[3U] = t3__0; |
| acc[4U] = t4_0; |
| Hacl_Bignum_Modulo_carry_top(acc); |
| uint32_t i0 = acc[0U]; |
| uint32_t i1 = acc[1U]; |
| uint32_t i0_ = i0 & (uint32_t)0x3ffffffU; |
| uint32_t i1_ = i1 + (i0 >> (uint32_t)26U); |
| acc[0U] = i0_; |
| acc[1U] = i1_; |
| uint32_t a0 = acc[0U]; |
| uint32_t a1 = acc[1U]; |
| uint32_t a2 = acc[2U]; |
| uint32_t a3 = acc[3U]; |
| uint32_t a4 = acc[4U]; |
| uint32_t mask0 = FStar_UInt32_gte_mask(a0, (uint32_t)0x3fffffbU); |
| uint32_t mask1 = FStar_UInt32_eq_mask(a1, (uint32_t)0x3ffffffU); |
| uint32_t mask2 = FStar_UInt32_eq_mask(a2, (uint32_t)0x3ffffffU); |
| uint32_t mask3 = FStar_UInt32_eq_mask(a3, (uint32_t)0x3ffffffU); |
| uint32_t mask4 = FStar_UInt32_eq_mask(a4, (uint32_t)0x3ffffffU); |
| uint32_t mask = (((mask0 & mask1) & mask2) & mask3) & mask4; |
| uint32_t a0_ = a0 - ((uint32_t)0x3fffffbU & mask); |
| uint32_t a1_ = a1 - ((uint32_t)0x3ffffffU & mask); |
| uint32_t a2_ = a2 - ((uint32_t)0x3ffffffU & mask); |
| uint32_t a3_ = a3 - ((uint32_t)0x3ffffffU & mask); |
| uint32_t a4_ = a4 - ((uint32_t)0x3ffffffU & mask); |
| acc[0U] = a0_; |
| acc[1U] = a1_; |
| acc[2U] = a2_; |
| acc[3U] = a3_; |
| acc[4U] = a4_; |
| } |
| |
| static Hacl_Impl_Poly1305_32_State_poly1305_state |
| Hacl_Impl_Poly1305_32_mk_state(uint32_t *r, uint32_t *h) |
| { |
| return ((Hacl_Impl_Poly1305_32_State_poly1305_state){.r = r, .h = h }); |
| } |
| |
| static void |
| Hacl_Standalone_Poly1305_32_poly1305_blocks( |
| Hacl_Impl_Poly1305_32_State_poly1305_state st, |
| uint8_t *m, |
| uint64_t len1) |
| { |
| if (!(len1 == (uint64_t)0U)) { |
| uint8_t *block = m; |
| uint8_t *tail1 = m + (uint32_t)16U; |
| Hacl_Impl_Poly1305_32_poly1305_update(st, block); |
| uint64_t len2 = len1 - (uint64_t)1U; |
| Hacl_Standalone_Poly1305_32_poly1305_blocks(st, tail1, len2); |
| } |
| } |
| |
| static void |
| Hacl_Standalone_Poly1305_32_poly1305_partial( |
| Hacl_Impl_Poly1305_32_State_poly1305_state st, |
| uint8_t *input, |
| uint64_t len1, |
| uint8_t *kr) |
| { |
| Hacl_Impl_Poly1305_32_State_poly1305_state scrut = st; |
| uint32_t *r = scrut.r; |
| uint32_t *x0 = r; |
| FStar_UInt128_t k1 = load128_le(kr); |
| FStar_UInt128_t |
| k_clamped = |
| FStar_UInt128_logand(k1, |
| FStar_UInt128_logor(FStar_UInt128_shift_left(FStar_UInt128_uint64_to_uint128((uint64_t)0x0ffffffc0ffffffcU), |
| (uint32_t)64U), |
| FStar_UInt128_uint64_to_uint128((uint64_t)0x0ffffffc0fffffffU))); |
| uint32_t r0 = (uint32_t)FStar_UInt128_uint128_to_uint64(k_clamped) & (uint32_t)0x3ffffffU; |
| uint32_t |
| r1 = |
| (uint32_t)FStar_UInt128_uint128_to_uint64(FStar_UInt128_shift_right(k_clamped, (uint32_t)26U)) & (uint32_t)0x3ffffffU; |
| uint32_t |
| r2 = |
| (uint32_t)FStar_UInt128_uint128_to_uint64(FStar_UInt128_shift_right(k_clamped, (uint32_t)52U)) & (uint32_t)0x3ffffffU; |
| uint32_t |
| r3 = |
| (uint32_t)FStar_UInt128_uint128_to_uint64(FStar_UInt128_shift_right(k_clamped, (uint32_t)78U)) & (uint32_t)0x3ffffffU; |
| uint32_t |
| r4 = |
| (uint32_t)FStar_UInt128_uint128_to_uint64(FStar_UInt128_shift_right(k_clamped, (uint32_t)104U)) & (uint32_t)0x3ffffffU; |
| x0[0U] = r0; |
| x0[1U] = r1; |
| x0[2U] = r2; |
| x0[3U] = r3; |
| x0[4U] = r4; |
| Hacl_Impl_Poly1305_32_State_poly1305_state scrut0 = st; |
| uint32_t *h = scrut0.h; |
| uint32_t *x00 = h; |
| x00[0U] = (uint32_t)0U; |
| x00[1U] = (uint32_t)0U; |
| x00[2U] = (uint32_t)0U; |
| x00[3U] = (uint32_t)0U; |
| x00[4U] = (uint32_t)0U; |
| Hacl_Standalone_Poly1305_32_poly1305_blocks(st, input, len1); |
| } |
| |
| static void |
| Hacl_Standalone_Poly1305_32_poly1305_complete( |
| Hacl_Impl_Poly1305_32_State_poly1305_state st, |
| uint8_t *m, |
| uint64_t len1, |
| uint8_t *k1) |
| { |
| uint8_t *kr = k1; |
| uint64_t len16 = len1 >> (uint32_t)4U; |
| uint64_t rem16 = len1 & (uint64_t)0xfU; |
| uint8_t *part_input = m; |
| uint8_t *last_block = m + (uint32_t)((uint64_t)16U * len16); |
| Hacl_Standalone_Poly1305_32_poly1305_partial(st, part_input, len16, kr); |
| if (!(rem16 == (uint64_t)0U)) |
| Hacl_Impl_Poly1305_32_poly1305_process_last_block(st, last_block, rem16); |
| Hacl_Impl_Poly1305_32_State_poly1305_state scrut = st; |
| uint32_t *h = scrut.h; |
| uint32_t *acc = h; |
| Hacl_Impl_Poly1305_32_poly1305_last_pass(acc); |
| } |
| |
| static void |
| Hacl_Standalone_Poly1305_32_crypto_onetimeauth_( |
| uint8_t *output, |
| uint8_t *input, |
| uint64_t len1, |
| uint8_t *k1) |
| { |
| uint32_t buf[10U] = { 0U }; |
| uint32_t *r = buf; |
| uint32_t *h = buf + (uint32_t)5U; |
| Hacl_Impl_Poly1305_32_State_poly1305_state st = Hacl_Impl_Poly1305_32_mk_state(r, h); |
| uint8_t *key_s = k1 + (uint32_t)16U; |
| Hacl_Standalone_Poly1305_32_poly1305_complete(st, input, len1, k1); |
| Hacl_Impl_Poly1305_32_State_poly1305_state scrut = st; |
| uint32_t *h5 = scrut.h; |
| uint32_t *acc = h5; |
| FStar_UInt128_t k_ = load128_le(key_s); |
| uint32_t h0 = acc[0U]; |
| uint32_t h1 = acc[1U]; |
| uint32_t h2 = acc[2U]; |
| uint32_t h3 = acc[3U]; |
| uint32_t h4 = acc[4U]; |
| FStar_UInt128_t |
| acc_ = |
| FStar_UInt128_logor(FStar_UInt128_shift_left(FStar_UInt128_uint64_to_uint128((uint64_t)h4), |
| (uint32_t)104U), |
| FStar_UInt128_logor(FStar_UInt128_shift_left(FStar_UInt128_uint64_to_uint128((uint64_t)h3), |
| (uint32_t)78U), |
| FStar_UInt128_logor(FStar_UInt128_shift_left(FStar_UInt128_uint64_to_uint128((uint64_t)h2), |
| (uint32_t)52U), |
| FStar_UInt128_logor(FStar_UInt128_shift_left(FStar_UInt128_uint64_to_uint128((uint64_t)h1), |
| (uint32_t)26U), |
| FStar_UInt128_uint64_to_uint128((uint64_t)h0))))); |
| FStar_UInt128_t mac_ = FStar_UInt128_add_mod(acc_, k_); |
| store128_le(output, mac_); |
| } |
| |
| static void |
| Hacl_Standalone_Poly1305_32_crypto_onetimeauth( |
| uint8_t *output, |
| uint8_t *input, |
| uint64_t len1, |
| uint8_t *k1) |
| { |
| Hacl_Standalone_Poly1305_32_crypto_onetimeauth_(output, input, len1, k1); |
| } |
| |
| void * |
| Hacl_Poly1305_32_op_String_Access(FStar_Monotonic_HyperStack_mem h, uint8_t *b) |
| { |
| return (void *)(uint8_t)0U; |
| } |
| |
| Hacl_Impl_Poly1305_32_State_poly1305_state |
| Hacl_Poly1305_32_mk_state(uint32_t *r, uint32_t *acc) |
| { |
| return Hacl_Impl_Poly1305_32_mk_state(r, acc); |
| } |
| |
| void |
| Hacl_Poly1305_32_init(Hacl_Impl_Poly1305_32_State_poly1305_state st, uint8_t *k1) |
| { |
| Hacl_Impl_Poly1305_32_State_poly1305_state scrut = st; |
| uint32_t *r = scrut.r; |
| uint32_t *x0 = r; |
| FStar_UInt128_t k10 = load128_le(k1); |
| FStar_UInt128_t |
| k_clamped = |
| FStar_UInt128_logand(k10, |
| FStar_UInt128_logor(FStar_UInt128_shift_left(FStar_UInt128_uint64_to_uint128((uint64_t)0x0ffffffc0ffffffcU), |
| (uint32_t)64U), |
| FStar_UInt128_uint64_to_uint128((uint64_t)0x0ffffffc0fffffffU))); |
| uint32_t r0 = (uint32_t)FStar_UInt128_uint128_to_uint64(k_clamped) & (uint32_t)0x3ffffffU; |
| uint32_t |
| r1 = |
| (uint32_t)FStar_UInt128_uint128_to_uint64(FStar_UInt128_shift_right(k_clamped, (uint32_t)26U)) & (uint32_t)0x3ffffffU; |
| uint32_t |
| r2 = |
| (uint32_t)FStar_UInt128_uint128_to_uint64(FStar_UInt128_shift_right(k_clamped, (uint32_t)52U)) & (uint32_t)0x3ffffffU; |
| uint32_t |
| r3 = |
| (uint32_t)FStar_UInt128_uint128_to_uint64(FStar_UInt128_shift_right(k_clamped, (uint32_t)78U)) & (uint32_t)0x3ffffffU; |
| uint32_t |
| r4 = |
| (uint32_t)FStar_UInt128_uint128_to_uint64(FStar_UInt128_shift_right(k_clamped, (uint32_t)104U)) & (uint32_t)0x3ffffffU; |
| x0[0U] = r0; |
| x0[1U] = r1; |
| x0[2U] = r2; |
| x0[3U] = r3; |
| x0[4U] = r4; |
| Hacl_Impl_Poly1305_32_State_poly1305_state scrut0 = st; |
| uint32_t *h = scrut0.h; |
| uint32_t *x00 = h; |
| x00[0U] = (uint32_t)0U; |
| x00[1U] = (uint32_t)0U; |
| x00[2U] = (uint32_t)0U; |
| x00[3U] = (uint32_t)0U; |
| x00[4U] = (uint32_t)0U; |
| } |
| |
| void *Hacl_Poly1305_32_empty_log = (void *)(uint8_t)0U; |
| |
| void |
| Hacl_Poly1305_32_update_block(Hacl_Impl_Poly1305_32_State_poly1305_state st, uint8_t *m) |
| { |
| Hacl_Impl_Poly1305_32_poly1305_update(st, m); |
| } |
| |
| void |
| Hacl_Poly1305_32_update( |
| Hacl_Impl_Poly1305_32_State_poly1305_state st, |
| uint8_t *m, |
| uint32_t len1) |
| { |
| if (!(len1 == (uint32_t)0U)) { |
| uint8_t *block = m; |
| uint8_t *m_ = m + (uint32_t)16U; |
| uint32_t len2 = len1 - (uint32_t)1U; |
| Hacl_Poly1305_32_update_block(st, block); |
| Hacl_Poly1305_32_update(st, m_, len2); |
| } |
| } |
| |
| void |
| Hacl_Poly1305_32_update_last( |
| Hacl_Impl_Poly1305_32_State_poly1305_state st, |
| uint8_t *m, |
| uint32_t len1) |
| { |
| if (!((uint64_t)len1 == (uint64_t)0U)) |
| Hacl_Impl_Poly1305_32_poly1305_process_last_block(st, m, (uint64_t)len1); |
| Hacl_Impl_Poly1305_32_State_poly1305_state scrut = st; |
| uint32_t *h = scrut.h; |
| uint32_t *acc = h; |
| Hacl_Impl_Poly1305_32_poly1305_last_pass(acc); |
| } |
| |
| void |
| Hacl_Poly1305_32_finish( |
| Hacl_Impl_Poly1305_32_State_poly1305_state st, |
| uint8_t *mac, |
| uint8_t *k1) |
| { |
| Hacl_Impl_Poly1305_32_State_poly1305_state scrut = st; |
| uint32_t *h = scrut.h; |
| uint32_t *acc = h; |
| FStar_UInt128_t k_ = load128_le(k1); |
| uint32_t h0 = acc[0U]; |
| uint32_t h1 = acc[1U]; |
| uint32_t h2 = acc[2U]; |
| uint32_t h3 = acc[3U]; |
| uint32_t h4 = acc[4U]; |
| FStar_UInt128_t |
| acc_ = |
| FStar_UInt128_logor(FStar_UInt128_shift_left(FStar_UInt128_uint64_to_uint128((uint64_t)h4), |
| (uint32_t)104U), |
| FStar_UInt128_logor(FStar_UInt128_shift_left(FStar_UInt128_uint64_to_uint128((uint64_t)h3), |
| (uint32_t)78U), |
| FStar_UInt128_logor(FStar_UInt128_shift_left(FStar_UInt128_uint64_to_uint128((uint64_t)h2), |
| (uint32_t)52U), |
| FStar_UInt128_logor(FStar_UInt128_shift_left(FStar_UInt128_uint64_to_uint128((uint64_t)h1), |
| (uint32_t)26U), |
| FStar_UInt128_uint64_to_uint128((uint64_t)h0))))); |
| FStar_UInt128_t mac_ = FStar_UInt128_add_mod(acc_, k_); |
| store128_le(mac, mac_); |
| } |
| |
| void |
| Hacl_Poly1305_32_crypto_onetimeauth( |
| uint8_t *output, |
| uint8_t *input, |
| uint64_t len1, |
| uint8_t *k1) |
| { |
| Hacl_Standalone_Poly1305_32_crypto_onetimeauth(output, input, len1, k1); |
| } |
