diff options
Diffstat (limited to 'security/nss/lib/freebl/verified/Hacl_Poly1305_32.c')
| -rw-r--r-- | security/nss/lib/freebl/verified/Hacl_Poly1305_32.c | 578 |
1 files changed, 578 insertions, 0 deletions
diff --git a/security/nss/lib/freebl/verified/Hacl_Poly1305_32.c b/security/nss/lib/freebl/verified/Hacl_Poly1305_32.c new file mode 100644 index 000000000..246a41af3 --- /dev/null +++ b/security/nss/lib/freebl/verified/Hacl_Poly1305_32.c @@ -0,0 +1,578 @@ +/* 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); +} |