diff options
Diffstat (limited to 'lib/liboqs/src/common/sha2')
| -rw-r--r-- | lib/liboqs/src/common/sha2/Makefile | 49 | ||||
| -rw-r--r-- | lib/liboqs/src/common/sha2/config.mk | 17 | ||||
| -rw-r--r-- | lib/liboqs/src/common/sha2/manifest.mn | 24 | ||||
| -rw-r--r-- | lib/liboqs/src/common/sha2/sha2.c | 132 | ||||
| -rw-r--r-- | lib/liboqs/src/common/sha2/sha2.gyp | 40 | ||||
| -rw-r--r-- | lib/liboqs/src/common/sha2/sha2.h | 257 | ||||
| -rw-r--r-- | lib/liboqs/src/common/sha2/sha2_c.c | 777 | ||||
| -rw-r--r-- | lib/liboqs/src/common/sha2/sha2_local.h | 86 |
8 files changed, 1382 insertions, 0 deletions
diff --git a/lib/liboqs/src/common/sha2/Makefile b/lib/liboqs/src/common/sha2/Makefile new file mode 100644 index 000000000..fe090f3ff --- /dev/null +++ b/lib/liboqs/src/common/sha2/Makefile @@ -0,0 +1,49 @@ +#! gmake +# +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +####################################################################### +# (1) Include initial platform-independent assignments (MANDATORY). # +####################################################################### + +include manifest.mn + +####################################################################### +# (2) Include "global" configuration information. (OPTIONAL) # +####################################################################### + +USE_GCOV = +include $(CORE_DEPTH)/coreconf/config.mk + +####################################################################### +# (3) Include "component" configuration information. (OPTIONAL) # +####################################################################### + + + +####################################################################### +# (4) Include "local" platform-dependent assignments (OPTIONAL). # +####################################################################### + +include config.mk + +####################################################################### +# (5) Execute "global" rules. (OPTIONAL) # +####################################################################### + +include $(CORE_DEPTH)/coreconf/rules.mk + +####################################################################### +# (6) Execute "component" rules. (OPTIONAL) # +####################################################################### + + + +####################################################################### +# (7) Execute "local" rules. (OPTIONAL). # +####################################################################### + +WARNING_CFLAGS = $(NULL) + diff --git a/lib/liboqs/src/common/sha2/config.mk b/lib/liboqs/src/common/sha2/config.mk new file mode 100644 index 000000000..b28c9ce64 --- /dev/null +++ b/lib/liboqs/src/common/sha2/config.mk @@ -0,0 +1,17 @@ +# DO NOT EDIT: generated from config.mk.subdirs.template +# +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +# add fixes for platform integration issues here. +# +# liboqs programs expect the public include files to be in oqs/xxxx, +# So we put liboqs in it's own module, oqs, and point to the dist files +INCLUDES += -I$(CORE_DEPTH)/lib/liboqs/src/common/pqclean_shims -I$(CORE_DEPTH)/lib/liboqs/src/common/sha3/xkcp_low/KeccakP-1600/plain-64bits +DEFINES += + +ifeq ($(OS_ARCH), Darwin) +DEFINES += -DOQS_HAVE_ALIGNED_ALLOC -DOQS_HAVE_MEMALIGN -DOQS_HAVE_POSIX_MEMALIGN +endif + diff --git a/lib/liboqs/src/common/sha2/manifest.mn b/lib/liboqs/src/common/sha2/manifest.mn new file mode 100644 index 000000000..cf7207622 --- /dev/null +++ b/lib/liboqs/src/common/sha2/manifest.mn @@ -0,0 +1,24 @@ +# DO NOT EDIT: generated from manifest.mn.subdirs.template +# +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. +CORE_DEPTH = ../../../../.. + +MODULE = oqs + +LIBRARY_NAME = oqs_src_common_sha2 +SHARED_LIBRARY = $(NULL) + +CSRCS = \ + sha2.c \ + sha2_c.c \ + $(NULL) + +# only add module debugging in opt builds if DEBUG_PKCS11 is set +ifdef DEBUG_PKCS11 + DEFINES += -DDEBUG_MODULE +endif + +# This part of the code, including all sub-dirs, can be optimized for size +export ALLOW_OPT_CODE_SIZE = 1 diff --git a/lib/liboqs/src/common/sha2/sha2.c b/lib/liboqs/src/common/sha2/sha2.c new file mode 100644 index 000000000..d622b883f --- /dev/null +++ b/lib/liboqs/src/common/sha2/sha2.c @@ -0,0 +1,132 @@ +// SPDX-License-Identifier: MIT +#include <stdio.h> + +#include <oqs/common.h> + +#include "sha2.h" +#include "sha2_local.h" + +#if defined(OQS_DIST_ARM64_V8_BUILD) +#define C_OR_ARM(stmt_c, stmt_arm) \ + do { \ + if (OQS_CPU_has_extension(OQS_CPU_EXT_ARM_SHA2)) { \ + stmt_arm; \ + } else { \ + stmt_c; \ + } \ + } while(0) +#elif defined(OQS_USE_ARM_SHA2_INSTRUCTIONS) +#define C_OR_ARM(stmt_c, stmt_arm) \ + stmt_arm +#else +#define C_OR_ARM(stmt_c, stmt_arm) \ + stmt_c +#endif +void OQS_SHA2_sha224_inc_init(OQS_SHA2_sha224_ctx *state) { + oqs_sha2_sha224_inc_init_c((sha224ctx *) state); +} + +void OQS_SHA2_sha224_inc_ctx_clone(OQS_SHA2_sha224_ctx *dest, const OQS_SHA2_sha224_ctx *src) { + oqs_sha2_sha224_inc_ctx_clone_c((sha224ctx *) dest, (const sha224ctx *) src); +} + +void OQS_SHA2_sha224_inc_blocks(OQS_SHA2_sha224_ctx *state, const uint8_t *in, size_t inblocks) { + C_OR_ARM( + oqs_sha2_sha224_inc_blocks_c((sha224ctx *) state, in, inblocks), + oqs_sha2_sha224_inc_blocks_armv8((sha224ctx *) state, in, inblocks) + ); +} + +void OQS_SHA2_sha224_inc_finalize(uint8_t *out, OQS_SHA2_sha224_ctx *state, const uint8_t *in, size_t inlen) { + oqs_sha2_sha224_inc_finalize_c(out, (sha224ctx *) state, in, inlen); +} + +void OQS_SHA2_sha224_inc_ctx_release(OQS_SHA2_sha224_ctx *state) { + oqs_sha2_sha224_inc_ctx_release_c((sha224ctx *) state); +} + +void OQS_SHA2_sha256_inc_init(OQS_SHA2_sha256_ctx *state) { + oqs_sha2_sha256_inc_init_c((sha256ctx *) state); +} + +void OQS_SHA2_sha256_inc_ctx_clone(OQS_SHA2_sha256_ctx *dest, const OQS_SHA2_sha256_ctx *src) { + oqs_sha2_sha256_inc_ctx_clone_c((sha256ctx *) dest, (const sha256ctx *) src); +} + +void OQS_SHA2_sha256_inc_blocks(OQS_SHA2_sha256_ctx *state, const uint8_t *in, size_t inblocks) { + C_OR_ARM( + oqs_sha2_sha256_inc_blocks_c((sha256ctx *) state, in, inblocks), + oqs_sha2_sha256_inc_blocks_armv8((sha256ctx *) state, in, inblocks) + ); +} + +void OQS_SHA2_sha256_inc_finalize(uint8_t *out, OQS_SHA2_sha256_ctx *state, const uint8_t *in, size_t inlen) { + oqs_sha2_sha256_inc_finalize_c(out, (sha256ctx *) state, in, inlen); +} + +void OQS_SHA2_sha256_inc_ctx_release(OQS_SHA2_sha256_ctx *state) { + oqs_sha2_sha256_inc_ctx_release_c((sha256ctx *) state); +} + +void OQS_SHA2_sha384_inc_init(OQS_SHA2_sha384_ctx *state) { + oqs_sha2_sha384_inc_init_c((sha384ctx *)state); +} + +void OQS_SHA2_sha384_inc_ctx_clone(OQS_SHA2_sha384_ctx *dest, const OQS_SHA2_sha384_ctx *src) { + oqs_sha2_sha384_inc_ctx_clone_c((sha384ctx *) dest, (const sha384ctx *) src); +} + +void OQS_SHA2_sha384_inc_blocks(OQS_SHA2_sha384_ctx *state, const uint8_t *in, size_t inblocks) { + oqs_sha2_sha384_inc_blocks_c((sha384ctx *) state, in, inblocks); +} + +void OQS_SHA2_sha384_inc_finalize(uint8_t *out, OQS_SHA2_sha384_ctx *state, const uint8_t *in, size_t inlen) { + oqs_sha2_sha384_inc_finalize_c(out, (sha384ctx *) state, in, inlen); +} + +void OQS_SHA2_sha384_inc_ctx_release(OQS_SHA2_sha384_ctx *state) { + oqs_sha2_sha384_inc_ctx_release_c((sha384ctx *) state); +} + +void OQS_SHA2_sha512_inc_init(OQS_SHA2_sha512_ctx *state) { + oqs_sha2_sha512_inc_init_c((sha512ctx *)state); +} + +void OQS_SHA2_sha512_inc_ctx_clone(OQS_SHA2_sha512_ctx *dest, const OQS_SHA2_sha512_ctx *src) { + oqs_sha2_sha512_inc_ctx_clone_c((sha512ctx *) dest, (const sha512ctx *) src); +} + +void OQS_SHA2_sha512_inc_blocks(OQS_SHA2_sha512_ctx *state, const uint8_t *in, size_t inblocks) { + oqs_sha2_sha512_inc_blocks_c((sha512ctx *) state, in, inblocks); +} + +void OQS_SHA2_sha512_inc_finalize(uint8_t *out, OQS_SHA2_sha512_ctx *state, const uint8_t *in, size_t inlen) { + oqs_sha2_sha512_inc_finalize_c(out, (sha512ctx *) state, in, inlen); +} + +void OQS_SHA2_sha512_inc_ctx_release(OQS_SHA2_sha512_ctx *state) { + oqs_sha2_sha512_inc_ctx_release_c((sha512ctx *) state); +} + +void OQS_SHA2_sha224(uint8_t *out, const uint8_t *in, size_t inlen) { + C_OR_ARM ( + oqs_sha2_sha224_c(out, in, inlen), + oqs_sha2_sha224_armv8(out, in, inlen) + ); +} + +void OQS_SHA2_sha256(uint8_t *out, const uint8_t *in, size_t inlen) { + C_OR_ARM ( + oqs_sha2_sha256_c(out, in, inlen), + oqs_sha2_sha256_armv8(out, in, inlen) + ); +} + +void OQS_SHA2_sha384(uint8_t *out, const uint8_t *in, size_t inlen) { + oqs_sha2_sha384_c(out, in, inlen); +} + +void OQS_SHA2_sha512(uint8_t *out, const uint8_t *in, size_t inlen) { + oqs_sha2_sha512_c(out, in, inlen); +} + diff --git a/lib/liboqs/src/common/sha2/sha2.gyp b/lib/liboqs/src/common/sha2/sha2.gyp new file mode 100644 index 000000000..ae77cd08a --- /dev/null +++ b/lib/liboqs/src/common/sha2/sha2.gyp @@ -0,0 +1,40 @@ +# DO NOT EDIT: generated from subdir.gyp.template +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. +{ + 'includes': [ + '../../../../../coreconf/config.gypi' + ], + 'targets': [ + { + 'target_name': 'oqs_src_common_sha2', + 'type': 'static_library', + 'sources': [ + 'sha2.c', + 'sha2_c.c', + ], + 'dependencies': [ + '<(DEPTH)/exports.gyp:nss_exports' + ] + } + ], + 'target_defaults': { + 'defines': [ + ], + 'include_dirs': [ + '<(DEPTH)/lib/liboqs/src/common/pqclean_shims', + '<(DEPTH)/lib/liboqs/src/common/sha3/xkcp_low/KeccakP-1600/plain-64bits', + ], + [ 'OS=="mac"', { + 'defines': [ + 'OQS_HAVE_POSIX_MEMALIGN', + 'OQS_HAVE_ALIGNED_ALLOC', + 'OQS_HAVE_MEMALIGN' + ] + }] + }, + 'variables': { + 'module': 'oqs' + } +} diff --git a/lib/liboqs/src/common/sha2/sha2.h b/lib/liboqs/src/common/sha2/sha2.h new file mode 100644 index 000000000..8d8973e4c --- /dev/null +++ b/lib/liboqs/src/common/sha2/sha2.h @@ -0,0 +1,257 @@ +/** + * \file sha2.h + * \brief SHA2 functions; not part of the OQS public API + * + * Contains the API and documentation for SHA2 digest implementation + * + * <b>Note this is not part of the OQS public API: implementations within liboqs can use these + * functions, but external consumers of liboqs should not use these functions.</b> + * + * \author Douglas Stebila + * + * SPDX-License-Identifier: MIT + */ + +#ifndef OQS_SHA2_H +#define OQS_SHA2_H + +#include <stddef.h> +#include <stdint.h> + +#if defined(__cplusplus) +extern "C" { +#endif + +/** Data structure for the state of the SHA-224 incremental hashing API. */ +typedef struct { + /** Internal state */ + void *ctx; +} OQS_SHA2_sha224_ctx; + +/** + * \brief Process a message with SHA-256 and return the hash code in the output byte array. + * + * \warning The output array must be at least 32 bytes in length. + * + * \param output The output byte array + * \param input The message input byte array + * \param inplen The number of message bytes to process + */ +void OQS_SHA2_sha256(uint8_t *output, const uint8_t *input, size_t inplen); + +/** Data structure for the state of the SHA-256 incremental hashing API. */ +typedef struct { + /** Internal state */ + void *ctx; +} OQS_SHA2_sha256_ctx; + +/** + * \brief Allocate and initialize the state for the SHA-256 incremental hashing API. + * + * \warning The state must be released by OQS_SHA2_sha256_inc_finalize + * or OQS_SHA2_sha256_inc_ctx_release. + * + * \param state Pointer to the state + */ +void OQS_SHA2_sha256_inc_init(OQS_SHA2_sha256_ctx *state); + +/** + * \brief Duplicate state for the SHA-256 incremental hashing API. + * + * \warning dest must be allocated by the caller. Caller is responsible + * for releasing dest by calling either OQS_SHA3_sha3_256_inc_finalize or + * OQS_SHA3_sha3_256_inc_ctx_release. + * + * \param dest The function state to copy into; must be initialized + * \param src The function state to copy; must be initialized + */ +void OQS_SHA2_sha256_inc_ctx_clone(OQS_SHA2_sha256_ctx *dest, const OQS_SHA2_sha256_ctx *src); + +/** + * \brief Process blocks with SHA-256 and update the state. + * + * \warning The state must be initialized by OQS_SHA2_sha256_inc_init or OQS_SHA2_sha256_inc_ctx_clone. + * + * \param state The state to update + * \param in Message input byte array + * \param inblocks The number of blocks of message bytes to process + */ +void OQS_SHA2_sha256_inc_blocks(OQS_SHA2_sha256_ctx *state, const uint8_t *in, size_t inblocks); + +/** + * \brief Process more message bytes with SHA-256 and return the hash code in the output byte array. + * + * \warning The output array must be at least 32 bytes in length. The state is + * deallocated by this function and can not be used again after calling + * this function without calling OQS_SHA2_sha256_inc_init again. + * + * \param out The output byte array + * \param state The state + * \param in Additional message input byte array + * \param inlen The number of additional message bytes to process + */ +void OQS_SHA2_sha256_inc_finalize(uint8_t *out, OQS_SHA2_sha256_ctx *state, const uint8_t *in, size_t inlen); + +/** + * \brief Destroy state. + * + * \warning The state is deallocated by this function and can not be used again after calling + * this function without calling OQS_SHA2_sha256_inc_init again. + * + * \param state The state + */ +void OQS_SHA2_sha256_inc_ctx_release(OQS_SHA2_sha256_ctx *state); + +/** + * \brief Process a message with SHA-384 and return the hash code in the output byte array. + * + * \warning The output array must be at least 48 bytes in length. + * + * \param output The output byte array + * \param input The message input byte array + * \param inplen The number of message bytes to process + */ +void OQS_SHA2_sha384(uint8_t *output, const uint8_t *input, size_t inplen); + +/** Data structure for the state of the SHA-384 incremental hashing API. */ +typedef struct { + /** Internal state. */ + void *ctx; +} OQS_SHA2_sha384_ctx; + +/** + * \brief Allocate and initialize the state for the SHA-384 incremental hashing API. + * + * \warning The state must be released by OQS_SHA2_sha384_inc_finalize + * or OQS_SHA2_sha384_inc_ctx_release. + * + * \param state Pointer to the state + */ +void OQS_SHA2_sha384_inc_init(OQS_SHA2_sha384_ctx *state); + +/** + * \brief Duplicate state for the SHA-384 incremental hashing API. + * + * \warning dest must be allocated by the caller. Caller is responsible + * for releasing dest by calling either OQS_SHA3_sha3_384_inc_finalize or + * OQS_SHA3_sha3_384_inc_ctx_release. + * + * \param dest The function state to copy into; must be initialized + * \param src The function state to copy; must be initialized + */ +void OQS_SHA2_sha384_inc_ctx_clone(OQS_SHA2_sha384_ctx *dest, const OQS_SHA2_sha384_ctx *src); + +/** + * \brief Process blocks with SHA-384 and update the state. + * + * \warning The state must be initialized by OQS_SHA2_sha384_inc_init or OQS_SHA2_sha384_inc_ctx_clone. + * + * \param state The state to update + * \param in Message input byte array + * \param inblocks The number of blocks of message bytes to process + */ +void OQS_SHA2_sha384_inc_blocks(OQS_SHA2_sha384_ctx *state, const uint8_t *in, size_t inblocks); + +/** + * \brief Process more message bytes with SHA-384 and return the hash code in the output byte array. + * + * \warning The output array must be at least 48 bytes in length. The state is + * deallocated by this function and can not be used again after calling + * this function without calling OQS_SHA2_sha384_inc_init again. + * + * \param out The output byte array + * \param state The state + * \param in Additional message input byte array + * \param inlen The number of additional message bytes to process + */ +void OQS_SHA2_sha384_inc_finalize(uint8_t *out, OQS_SHA2_sha384_ctx *state, const uint8_t *in, size_t inlen); + +/** + * \brief Destroy state. + * + * \warning The state is deallocated by this function and can not be used again after calling + * this function without calling OQS_SHA2_sha384_inc_init again. + * + * \param state The state + */ +void OQS_SHA2_sha384_inc_ctx_release(OQS_SHA2_sha384_ctx *state); + +/** + * \brief Process a message with SHA-512 and return the hash code in the output byte array. + * + * \warning The output array must be at least 64 bytes in length. + * + * \param output The output byte array + * \param input The message input byte array + * \param inplen The number of message bytes to process + */ +void OQS_SHA2_sha512(uint8_t *output, const uint8_t *input, size_t inplen); + +/** Data structure for the state of the SHA-512 incremental hashing API. */ +typedef struct { + /** Internal state. */ + void *ctx; +} OQS_SHA2_sha512_ctx; + +/** + * \brief Allocate and initialize the state for the SHA-512 incremental hashing API. + * + * \warning The state must be released by OQS_SHA2_sha512_inc_finalize + * or OQS_SHA2_sha512_inc_ctx_release. + * + * \param state Pointer to the state + */ +void OQS_SHA2_sha512_inc_init(OQS_SHA2_sha512_ctx *state); + +/** + * \brief Duplicate state for the SHA-512 incremental hashing API. + * + * \warning dest must be allocated by the caller. Caller is responsible + * for releasing dest by calling either OQS_SHA3_sha3_512_inc_finalize or + * OQS_SHA3_sha3_512_inc_ctx_release. + * + * \param dest The function state to copy into; must be initialized + * \param src The function state to copy; must be initialized + */ +void OQS_SHA2_sha512_inc_ctx_clone(OQS_SHA2_sha512_ctx *dest, const OQS_SHA2_sha512_ctx *src); + +/** + * \brief Process blocks with SHA-512 and update the state. + * + * \warning The state must be initialized by OQS_SHA2_sha512_inc_init or OQS_SHA2_sha512_inc_ctx_clone. + * + * \param state The state to update + * \param in Message input byte array + * \param inblocks The number of blocks of message bytes to process + */ +void OQS_SHA2_sha512_inc_blocks(OQS_SHA2_sha512_ctx *state, const uint8_t *in, size_t inblocks); + +/** + * \brief Process more message bytes with SHA-512 and return the hash code in the output byte array. + * + * \warning The output array must be at least 64 bytes in length. The state is + * deallocated by this function and can not be used again after calling + * this function without calling OQS_SHA2_sha512_inc_init again. + * + * \param out The output byte array + * \param state The state + * \param in Additional message input byte array + * \param inlen The number of additional message bytes to process + */ +void OQS_SHA2_sha512_inc_finalize(uint8_t *out, OQS_SHA2_sha512_ctx *state, const uint8_t *in, size_t inlen); + +/** + * \brief Destroy state. + * + * \warning The state is deallocated by this function and can not be used again after calling + * this function without calling OQS_SHA2_sha512_inc_init again. + * + * \param state The state + */ +void OQS_SHA2_sha512_inc_ctx_release(OQS_SHA2_sha512_ctx *state); + +#if defined(__cplusplus) +} // extern "C" +#endif + +#endif // OQS_SHA2_H diff --git a/lib/liboqs/src/common/sha2/sha2_c.c b/lib/liboqs/src/common/sha2/sha2_c.c new file mode 100644 index 000000000..1de100c30 --- /dev/null +++ b/lib/liboqs/src/common/sha2/sha2_c.c @@ -0,0 +1,777 @@ +// SPDX-License-Identifier: Public domain + +#include <oqs/oqs.h> + +#include "sha2_local.h" +#include <stdio.h> + +#define PQC_SHA256CTX_BYTES 40 +#define PQC_SHA512CTX_BYTES 72 +/* Based on the public domain implementation in + * crypto_hash/sha512/ref/ from http://bench.cr.yp.to/supercop.html + * by D. J. Bernstein */ + +#include <stddef.h> +#include <stdint.h> +#include <stdlib.h> +#include <string.h> + +static uint32_t load_bigendian_32(const uint8_t *x) { + return (uint32_t)(x[3]) | (((uint32_t)(x[2])) << 8) | + (((uint32_t)(x[1])) << 16) | (((uint32_t)(x[0])) << 24); +} + +static uint64_t load_bigendian_64(const uint8_t *x) { + return (uint64_t)(x[7]) | (((uint64_t)(x[6])) << 8) | + (((uint64_t)(x[5])) << 16) | (((uint64_t)(x[4])) << 24) | + (((uint64_t)(x[3])) << 32) | (((uint64_t)(x[2])) << 40) | + (((uint64_t)(x[1])) << 48) | (((uint64_t)(x[0])) << 56); +} + +static void store_bigendian_32(uint8_t *x, uint64_t u) { + x[3] = (uint8_t) u; + u >>= 8; + x[2] = (uint8_t) u; + u >>= 8; + x[1] = (uint8_t) u; + u >>= 8; + x[0] = (uint8_t) u; +} + +static void store_bigendian_64(uint8_t *x, uint64_t u) { + x[7] = (uint8_t) u; + u >>= 8; + x[6] = (uint8_t) u; + u >>= 8; + x[5] = (uint8_t) u; + u >>= 8; + x[4] = (uint8_t) u; + u >>= 8; + x[3] = (uint8_t) u; + u >>= 8; + x[2] = (uint8_t) u; + u >>= 8; + x[1] = (uint8_t) u; + u >>= 8; + x[0] = (uint8_t) u; +} + +#define SHR(x, c) ((x) >> (c)) +#define ROTR_32(x, c) (((x) >> (c)) | ((x) << (32 - (c)))) +#define ROTR_64(x, c) (((x) >> (c)) | ((x) << (64 - (c)))) + +#define Ch(x, y, z) (((x) & (y)) ^ (~(x) & (z))) +#define Maj(x, y, z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z))) + +#define Sigma0_32(x) (ROTR_32(x, 2) ^ ROTR_32(x,13) ^ ROTR_32(x,22)) +#define Sigma1_32(x) (ROTR_32(x, 6) ^ ROTR_32(x,11) ^ ROTR_32(x,25)) +#define sigma0_32(x) (ROTR_32(x, 7) ^ ROTR_32(x,18) ^ SHR(x, 3)) +#define sigma1_32(x) (ROTR_32(x,17) ^ ROTR_32(x,19) ^ SHR(x,10)) + +#define Sigma0_64(x) (ROTR_64(x, 28) ^ ROTR_64(x, 34) ^ ROTR_64(x, 39)) +#define Sigma1_64(x) (ROTR_64(x, 14) ^ ROTR_64(x, 18) ^ ROTR_64(x, 41)) +#define sigma0_64(x) (ROTR_64(x, 1) ^ ROTR_64(x, 8) ^ SHR(x, 7)) +#define sigma1_64(x) (ROTR_64(x, 19) ^ ROTR_64(x, 61) ^ SHR(x, 6)) + +#define M_32(w0, w14, w9, w1) w0 = sigma1_32(w14) + (w9) + sigma0_32(w1) + (w0); +#define M_64(w0, w14, w9, w1) w0 = sigma1_64(w14) + (w9) + sigma0_64(w1) + (w0); + +#define EXPAND_32 \ + M_32(w0, w14, w9, w1) \ + M_32(w1, w15, w10, w2) \ + M_32(w2, w0, w11, w3) \ + M_32(w3, w1, w12, w4) \ + M_32(w4, w2, w13, w5) \ + M_32(w5, w3, w14, w6) \ + M_32(w6, w4, w15, w7) \ + M_32(w7, w5, w0, w8) \ + M_32(w8, w6, w1, w9) \ + M_32(w9, w7, w2, w10) \ + M_32(w10, w8, w3, w11) \ + M_32(w11, w9, w4, w12) \ + M_32(w12, w10, w5, w13) \ + M_32(w13, w11, w6, w14) \ + M_32(w14, w12, w7, w15) \ + M_32(w15, w13, w8, w0) + +#define EXPAND_64 \ + M_64(w0, w14, w9, w1) \ + M_64(w1, w15, w10, w2) \ + M_64(w2, w0, w11, w3) \ + M_64(w3, w1, w12, w4) \ + M_64(w4, w2, w13, w5) \ + M_64(w5, w3, w14, w6) \ + M_64(w6, w4, w15, w7) \ + M_64(w7, w5, w0, w8) \ + M_64(w8, w6, w1, w9) \ + M_64(w9, w7, w2, w10) \ + M_64(w10, w8, w3, w11) \ + M_64(w11, w9, w4, w12) \ + M_64(w12, w10, w5, w13) \ + M_64(w13, w11, w6, w14) \ + M_64(w14, w12, w7, w15) \ + M_64(w15, w13, w8, w0) + +#define F_32(w, k) \ + T1 = h + Sigma1_32(e) + Ch(e, f, g) + (k) + (w); \ + T2 = Sigma0_32(a) + Maj(a, b, c); \ + h = g; \ + g = f; \ + f = e; \ + e = d + T1; \ + d = c; \ + c = b; \ + b = a; \ + a = T1 + T2; + +#define F_64(w, k) \ + T1 = h + Sigma1_64(e) + Ch(e, f, g) + (k) + (w); \ + T2 = Sigma0_64(a) + Maj(a, b, c); \ + h = g; \ + g = f; \ + f = e; \ + e = d + T1; \ + d = c; \ + c = b; \ + b = a; \ + a = T1 + T2; + +static size_t crypto_hashblocks_sha256_c(uint8_t *statebytes, + const uint8_t *in, size_t inlen) { + uint32_t state[8]; + uint32_t a; + uint32_t b; + uint32_t c; + uint32_t d; + uint32_t e; + uint32_t f; + uint32_t g; + uint32_t h; + uint32_t T1; + uint32_t T2; + + a = load_bigendian_32(statebytes + 0); + state[0] = a; + b = load_bigendian_32(statebytes + 4); + state[1] = b; + c = load_bigendian_32(statebytes + 8); + state[2] = c; + d = load_bigendian_32(statebytes + 12); + state[3] = d; + e = load_bigendian_32(statebytes + 16); + state[4] = e; + f = load_bigendian_32(statebytes + 20); + state[5] = f; + g = load_bigendian_32(statebytes + 24); + state[6] = g; + h = load_bigendian_32(statebytes + 28); + state[7] = h; + + while (inlen >= 64) { + uint32_t w0 = load_bigendian_32(in + 0); + uint32_t w1 = load_bigendian_32(in + 4); + uint32_t w2 = load_bigendian_32(in + 8); + uint32_t w3 = load_bigendian_32(in + 12); + uint32_t w4 = load_bigendian_32(in + 16); + uint32_t w5 = load_bigendian_32(in + 20); + uint32_t w6 = load_bigendian_32(in + 24); + uint32_t w7 = load_bigendian_32(in + 28); + uint32_t w8 = load_bigendian_32(in + 32); + uint32_t w9 = load_bigendian_32(in + 36); + uint32_t w10 = load_bigendian_32(in + 40); + uint32_t w11 = load_bigendian_32(in + 44); + uint32_t w12 = load_bigendian_32(in + 48); + uint32_t w13 = load_bigendian_32(in + 52); + uint32_t w14 = load_bigendian_32(in + 56); + uint32_t w15 = load_bigendian_32(in + 60); + + F_32(w0, 0x428a2f98) + F_32(w1, 0x71374491) + F_32(w2, 0xb5c0fbcf) + F_32(w3, 0xe9b5dba5) + F_32(w4, 0x3956c25b) + F_32(w5, 0x59f111f1) + F_32(w6, 0x923f82a4) + F_32(w7, 0xab1c5ed5) + F_32(w8, 0xd807aa98) + F_32(w9, 0x12835b01) + F_32(w10, 0x243185be) + F_32(w11, 0x550c7dc3) + F_32(w12, 0x72be5d74) + F_32(w13, 0x80deb1fe) + F_32(w14, 0x9bdc06a7) + F_32(w15, 0xc19bf174) + + EXPAND_32 + + F_32(w0, 0xe49b69c1) + F_32(w1, 0xefbe4786) + F_32(w2, 0x0fc19dc6) + F_32(w3, 0x240ca1cc) + F_32(w4, 0x2de92c6f) + F_32(w5, 0x4a7484aa) + F_32(w6, 0x5cb0a9dc) + F_32(w7, 0x76f988da) + F_32(w8, 0x983e5152) + F_32(w9, 0xa831c66d) + F_32(w10, 0xb00327c8) + F_32(w11, 0xbf597fc7) + F_32(w12, 0xc6e00bf3) + F_32(w13, 0xd5a79147) + F_32(w14, 0x06ca6351) + F_32(w15, 0x14292967) + + EXPAND_32 + + F_32(w0, 0x27b70a85) + F_32(w1, 0x2e1b2138) + F_32(w2, 0x4d2c6dfc) + F_32(w3, 0x53380d13) + F_32(w4, 0x650a7354) + F_32(w5, 0x766a0abb) + F_32(w6, 0x81c2c92e) + F_32(w7, 0x92722c85) + F_32(w8, 0xa2bfe8a1) + F_32(w9, 0xa81a664b) + F_32(w10, 0xc24b8b70) + F_32(w11, 0xc76c51a3) + F_32(w12, 0xd192e819) + F_32(w13, 0xd6990624) + F_32(w14, 0xf40e3585) + F_32(w15, 0x106aa070) + + EXPAND_32 + + F_32(w0, 0x19a4c116) + F_32(w1, 0x1e376c08) + F_32(w2, 0x2748774c) + F_32(w3, 0x34b0bcb5) + F_32(w4, 0x391c0cb3) + F_32(w5, 0x4ed8aa4a) + F_32(w6, 0x5b9cca4f) + F_32(w7, 0x682e6ff3) + F_32(w8, 0x748f82ee) + F_32(w9, 0x78a5636f) + F_32(w10, 0x84c87814) + F_32(w11, 0x8cc70208) + F_32(w12, 0x90befffa) + F_32(w13, 0xa4506ceb) + F_32(w14, 0xbef9a3f7) + F_32(w15, 0xc67178f2) + + a += state[0]; + b += state[1]; + c += state[2]; + d += state[3]; + e += state[4]; + f += state[5]; + g += state[6]; + h += state[7]; + + state[0] = a; + state[1] = b; + state[2] = c; + state[3] = d; + state[4] = e; + state[5] = f; + state[6] = g; + state[7] = h; + + in += 64; + inlen -= 64; + } + + store_bigendian_32(statebytes + 0, state[0]); + store_bigendian_32(statebytes + 4, state[1]); + store_bigendian_32(statebytes + 8, state[2]); + store_bigendian_32(statebytes + 12, state[3]); + store_bigendian_32(statebytes + 16, state[4]); + store_bigendian_32(statebytes + 20, state[5]); + store_bigendian_32(statebytes + 24, state[6]); + store_bigendian_32(statebytes + 28, state[7]); + + return inlen; +} + +static size_t crypto_hashblocks_sha512_c(uint8_t *statebytes, + const uint8_t *in, size_t inlen) { + uint64_t state[8]; + uint64_t a; + uint64_t b; + uint64_t c; + uint64_t d; + uint64_t e; + uint64_t f; + uint64_t g; + uint64_t h; + uint64_t T1; + uint64_t T2; + + a = load_bigendian_64(statebytes + 0); + state[0] = a; + b = load_bigendian_64(statebytes + 8); + state[1] = b; + c = load_bigendian_64(statebytes + 16); + state[2] = c; + d = load_bigendian_64(statebytes + 24); + state[3] = d; + e = load_bigendian_64(statebytes + 32); + state[4] = e; + f = load_bigendian_64(statebytes + 40); + state[5] = f; + g = load_bigendian_64(statebytes + 48); + state[6] = g; + h = load_bigendian_64(statebytes + 56); + state[7] = h; + + while (inlen >= 128) { + uint64_t w0 = load_bigendian_64(in + 0); + uint64_t w1 = load_bigendian_64(in + 8); + uint64_t w2 = load_bigendian_64(in + 16); + uint64_t w3 = load_bigendian_64(in + 24); + uint64_t w4 = load_bigendian_64(in + 32); + uint64_t w5 = load_bigendian_64(in + 40); + uint64_t w6 = load_bigendian_64(in + 48); + uint64_t w7 = load_bigendian_64(in + 56); + uint64_t w8 = load_bigendian_64(in + 64); + uint64_t w9 = load_bigendian_64(in + 72); + uint64_t w10 = load_bigendian_64(in + 80); + uint64_t w11 = load_bigendian_64(in + 88); + uint64_t w12 = load_bigendian_64(in + 96); + uint64_t w13 = load_bigendian_64(in + 104); + uint64_t w14 = load_bigendian_64(in + 112); + uint64_t w15 = load_bigendian_64(in + 120); + + F_64(w0, 0x428a2f98d728ae22ULL) + F_64(w1, 0x7137449123ef65cdULL) + F_64(w2, 0xb5c0fbcfec4d3b2fULL) + F_64(w3, 0xe9b5dba58189dbbcULL) + F_64(w4, 0x3956c25bf348b538ULL) + F_64(w5, 0x59f111f1b605d019ULL) + F_64(w6, 0x923f82a4af194f9bULL) + F_64(w7, 0xab1c5ed5da6d8118ULL) + F_64(w8, 0xd807aa98a3030242ULL) + F_64(w9, 0x12835b0145706fbeULL) + F_64(w10, 0x243185be4ee4b28cULL) + F_64(w11, 0x550c7dc3d5ffb4e2ULL) + F_64(w12, 0x72be5d74f27b896fULL) + F_64(w13, 0x80deb1fe3b1696b1ULL) + F_64(w14, 0x9bdc06a725c71235ULL) + F_64(w15, 0xc19bf174cf692694ULL) + + EXPAND_64 + + F_64(w0, 0xe49b69c19ef14ad2ULL) + F_64(w1, 0xefbe4786384f25e3ULL) + F_64(w2, 0x0fc19dc68b8cd5b5ULL) + F_64(w3, 0x240ca1cc77ac9c65ULL) + F_64(w4, 0x2de92c6f592b0275ULL) + F_64(w5, 0x4a7484aa6ea6e483ULL) + F_64(w6, 0x5cb0a9dcbd41fbd4ULL) + F_64(w7, 0x76f988da831153b5ULL) + F_64(w8, 0x983e5152ee66dfabULL) + F_64(w9, 0xa831c66d2db43210ULL) + F_64(w10, 0xb00327c898fb213fULL) + F_64(w11, 0xbf597fc7beef0ee4ULL) + F_64(w12, 0xc6e00bf33da88fc2ULL) + F_64(w13, 0xd5a79147930aa725ULL) + F_64(w14, 0x06ca6351e003826fULL) + F_64(w15, 0x142929670a0e6e70ULL) + + EXPAND_64 + + F_64(w0, 0x27b70a8546d22ffcULL) + F_64(w1, 0x2e1b21385c26c926ULL) + F_64(w2, 0x4d2c6dfc5ac42aedULL) + F_64(w3, 0x53380d139d95b3dfULL) + F_64(w4, 0x650a73548baf63deULL) + F_64(w5, 0x766a0abb3c77b2a8ULL) + F_64(w6, 0x81c2c92e47edaee6ULL) + F_64(w7, 0x92722c851482353bULL) + F_64(w8, 0xa2bfe8a14cf10364ULL) + F_64(w9, 0xa81a664bbc423001ULL) + F_64(w10, 0xc24b8b70d0f89791ULL) + F_64(w11, 0xc76c51a30654be30ULL) + F_64(w12, 0xd192e819d6ef5218ULL) + F_64(w13, 0xd69906245565a910ULL) + F_64(w14, 0xf40e35855771202aULL) + F_64(w15, 0x106aa07032bbd1b8ULL) + + EXPAND_64 + + F_64(w0, 0x19a4c116b8d2d0c8ULL) + F_64(w1, 0x1e376c085141ab53ULL) + F_64(w2, 0x2748774cdf8eeb99ULL) + F_64(w3, 0x34b0bcb5e19b48a8ULL) + F_64(w4, 0x391c0cb3c5c95a63ULL) + F_64(w5, 0x4ed8aa4ae3418acbULL) + F_64(w6, 0x5b9cca4f7763e373ULL) + F_64(w7, 0x682e6ff3d6b2b8a3ULL) + F_64(w8, 0x748f82ee5defb2fcULL) + F_64(w9, 0x78a5636f43172f60ULL) + F_64(w10, 0x84c87814a1f0ab72ULL) + F_64(w11, 0x8cc702081a6439ecULL) + F_64(w12, 0x90befffa23631e28ULL) + F_64(w13, 0xa4506cebde82bde9ULL) + F_64(w14, 0xbef9a3f7b2c67915ULL) + F_64(w15, 0xc67178f2e372532bULL) + + EXPAND_64 + + F_64(w0, 0xca273eceea26619cULL) + F_64(w1, 0xd186b8c721c0c207ULL) + F_64(w2, 0xeada7dd6cde0eb1eULL) + F_64(w3, 0xf57d4f7fee6ed178ULL) + F_64(w4, 0x06f067aa72176fbaULL) + F_64(w5, 0x0a637dc5a2c898a6ULL) + F_64(w6, 0x113f9804bef90daeULL) + F_64(w7, 0x1b710b35131c471bULL) + F_64(w8, 0x28db77f523047d84ULL) + F_64(w9, 0x32caab7b40c72493ULL) + F_64(w10, 0x3c9ebe0a15c9bebcULL) + F_64(w11, 0x431d67c49c100d4cULL) + F_64(w12, 0x4cc5d4becb3e42b6ULL) + F_64(w13, 0x597f299cfc657e2aULL) + F_64(w14, 0x5fcb6fab3ad6faecULL) + F_64(w15, 0x6c44198c4a475817ULL) + + a += state[0]; + b += state[1]; + c += state[2]; + d += state[3]; + e += state[4]; + f += state[5]; + g += state[6]; + h += state[7]; + + state[0] = a; + state[1] = b; + state[2] = c; + state[3] = d; + state[4] = e; + state[5] = f; + state[6] = g; + state[7] = h; + + in += 128; + inlen -= 128; + } + + store_bigendian_64(statebytes + 0, state[0]); + store_bigendian_64(statebytes + 8, state[1]); + store_bigendian_64(statebytes + 16, state[2]); + store_bigendian_64(statebytes + 24, state[3]); + store_bigendian_64(statebytes + 32, state[4]); + store_bigendian_64(statebytes + 40, state[5]); + store_bigendian_64(statebytes + 48, state[6]); + store_bigendian_64(statebytes + 56, state[7]); + + return inlen; +} + +static const uint8_t iv_224[32] = { + 0xc1, 0x05, 0x9e, 0xd8, 0x36, 0x7c, 0xd5, 0x07, + 0x30, 0x70, 0xdd, 0x17, 0xf7, 0x0e, 0x59, 0x39, + 0xff, 0xc0, 0x0b, 0x31, 0x68, 0x58, 0x15, 0x11, + 0x64, 0xf9, 0x8f, 0xa7, 0xbe, 0xfa, 0x4f, 0xa4 +}; + +static const uint8_t iv_256[32] = { + 0x6a, 0x09, 0xe6, 0x67, 0xbb, 0x67, 0xae, 0x85, + 0x3c, 0x6e, 0xf3, 0x72, 0xa5, 0x4f, 0xf5, 0x3a, + 0x51, 0x0e, 0x52, 0x7f, 0x9b, 0x05, 0x68, 0x8c, + 0x1f, 0x83, 0xd9, 0xab, 0x5b, 0xe0, 0xcd, 0x19 +}; + +static const uint8_t iv_384[64] = { + 0xcb, 0xbb, 0x9d, 0x5d, 0xc1, 0x05, 0x9e, 0xd8, 0x62, 0x9a, 0x29, + 0x2a, 0x36, 0x7c, 0xd5, 0x07, 0x91, 0x59, 0x01, 0x5a, 0x30, 0x70, + 0xdd, 0x17, 0x15, 0x2f, 0xec, 0xd8, 0xf7, 0x0e, 0x59, 0x39, 0x67, + 0x33, 0x26, 0x67, 0xff, 0xc0, 0x0b, 0x31, 0x8e, 0xb4, 0x4a, 0x87, + 0x68, 0x58, 0x15, 0x11, 0xdb, 0x0c, 0x2e, 0x0d, 0x64, 0xf9, 0x8f, + 0xa7, 0x47, 0xb5, 0x48, 0x1d, 0xbe, 0xfa, 0x4f, 0xa4 +}; + +static const uint8_t iv_512[64] = { + 0x6a, 0x09, 0xe6, 0x67, 0xf3, 0xbc, 0xc9, 0x08, 0xbb, 0x67, 0xae, + 0x85, 0x84, 0xca, 0xa7, 0x3b, 0x3c, 0x6e, 0xf3, 0x72, 0xfe, 0x94, + 0xf8, 0x2b, 0xa5, 0x4f, 0xf5, 0x3a, 0x5f, 0x1d, 0x36, 0xf1, 0x51, + 0x0e, 0x52, 0x7f, 0xad, 0xe6, 0x82, 0xd1, 0x9b, 0x05, 0x68, 0x8c, + 0x2b, 0x3e, 0x6c, 0x1f, 0x1f, 0x83, 0xd9, 0xab, 0xfb, 0x41, 0xbd, + 0x6b, 0x5b, 0xe0, 0xcd, 0x19, 0x13, 0x7e, 0x21, 0x79 +}; + +void oqs_sha2_sha224_inc_init_c(sha224ctx *state) { + state->ctx = malloc(PQC_SHA256CTX_BYTES); + if (state->ctx == NULL) { + exit(111); + } + for (size_t i = 0; i < 32; ++i) { + state->ctx[i] = iv_224[i]; + } + for (size_t i = 32; i < 40; ++i) { + state->ctx[i] = 0; + } +} + +void oqs_sha2_sha256_inc_init_c(sha256ctx *state) { + state->ctx = malloc(PQC_SHA256CTX_BYTES); + if (state->ctx == NULL) { + exit(111); + } + for (size_t i = 0; i < 32; ++i) { + state->ctx[i] = iv_256[i]; + } + for (size_t i = 32; i < 40; ++i) { + state->ctx[i] = 0; + } +} + +void oqs_sha2_sha384_inc_init_c(sha384ctx *state) { + state->ctx = malloc(PQC_SHA512CTX_BYTES); + if (state->ctx == NULL) { + exit(111); + } + for (size_t i = 0; i < 64; ++i) { + state->ctx[i] = iv_384[i]; + } + for (size_t i = 64; i < 72; ++i) { + state->ctx[i] = 0; + } +} + +void oqs_sha2_sha512_inc_init_c(sha512ctx *state) { + state->ctx = malloc(PQC_SHA512CTX_BYTES); + if (state->ctx == NULL) { + exit(111); + } + for (size_t i = 0; i < 64; ++i) { + state->ctx[i] = iv_512[i]; + } + for (size_t i = 64; i < 72; ++i) { + state->ctx[i] = 0; + } +} + +void oqs_sha2_sha224_inc_ctx_clone_c(sha224ctx *stateout, const sha224ctx *statein) { + stateout->ctx = malloc(PQC_SHA256CTX_BYTES); + if (stateout->ctx == NULL) { + exit(111); + } + memcpy(stateout->ctx, statein->ctx, PQC_SHA256CTX_BYTES); +} + +void oqs_sha2_sha256_inc_ctx_clone_c(sha256ctx *stateout, const sha256ctx *statein) { + stateout->ctx = malloc(PQC_SHA256CTX_BYTES); + if (stateout->ctx == NULL) { + exit(111); + } + memcpy(stateout->ctx, statein->ctx, PQC_SHA256CTX_BYTES); +} + +void oqs_sha2_sha384_inc_ctx_clone_c(sha384ctx *stateout, const sha384ctx *statein) { + stateout->ctx = malloc(PQC_SHA512CTX_BYTES); + if (stateout->ctx == NULL) { + exit(111); + } + memcpy(stateout->ctx, statein->ctx, PQC_SHA512CTX_BYTES); +} + +void oqs_sha2_sha512_inc_ctx_clone_c(sha512ctx *stateout, const sha512ctx *statein) { + stateout->ctx = malloc(PQC_SHA512CTX_BYTES); + if (stateout->ctx == NULL) { + exit(111); + } + memcpy(stateout->ctx, statein->ctx, PQC_SHA512CTX_BYTES); +} + +/* Destroy the hash state. */ +void oqs_sha2_sha224_inc_ctx_release_c(sha224ctx *state) { + free(state->ctx); // IGNORE free-check +} + +/* Destroy the hash state. */ +void oqs_sha2_sha256_inc_ctx_release_c(sha256ctx *state) { + free(state->ctx); // IGNORE free-check +} + +/* Destroy the hash state. */ +void oqs_sha2_sha384_inc_ctx_release_c(sha384ctx *state) { + free(state->ctx); // IGNORE free-check +} + +/* Destroy the hash state. */ +void oqs_sha2_sha512_inc_ctx_release_c(sha512ctx *state) { + free(state->ctx); // IGNORE free-check +} + +void oqs_sha2_sha256_inc_blocks_c(sha256ctx *state, const uint8_t *in, size_t inblocks) { + uint64_t bytes = load_bigendian_64(state->ctx + 32); + + crypto_hashblocks_sha256_c(state->ctx, in, 64 * inblocks); + bytes += 64 * inblocks; + + store_bigendian_64(state->ctx + 32, bytes); +} + +void oqs_sha2_sha224_inc_blocks_c(sha224ctx *state, const uint8_t *in, size_t inblocks) { + oqs_sha2_sha256_inc_blocks_c((sha256ctx *) state, in, inblocks); +} + +void oqs_sha2_sha512_inc_blocks_c(sha512ctx *state, const uint8_t *in, size_t inblocks) { + uint64_t bytes = load_bigendian_64(state->ctx + 64); + + crypto_hashblocks_sha512_c(state->ctx, in, 128 * inblocks); + bytes += 128 * inblocks; + + store_bigendian_64(state->ctx + 64, bytes); +} + +void oqs_sha2_sha384_inc_blocks_c(sha384ctx *state, const uint8_t *in, size_t inblocks) { + oqs_sha2_sha512_inc_blocks_c((sha512ctx *) state, in, inblocks); +} + +void oqs_sha2_sha256_inc_finalize_c(uint8_t *out, sha256ctx *state, const uint8_t *in, size_t inlen) { + uint8_t padded[128]; + uint64_t bytes = load_bigendian_64(state->ctx + 32) + inlen; + + crypto_hashblocks_sha256_c(state->ctx, in, inlen); + in += inlen; + inlen &= 63; + in -= inlen; + + for (size_t i = 0; i < inlen; ++i) { + padded[i] = in[i]; + } + padded[inlen] = 0x80; + + if (inlen < 56) { + for (size_t i = inlen + 1; i < 56; ++i) { + padded[i] = 0; + } + padded[56] = (uint8_t) (bytes >> 53); + padded[57] = (uint8_t) (bytes >> 45); + padded[58] = (uint8_t) (bytes >> 37); + padded[59] = (uint8_t) (bytes >> 29); + padded[60] = (uint8_t) (bytes >> 21); + padded[61] = (uint8_t) (bytes >> 13); + padded[62] = (uint8_t) (bytes >> 5); + padded[63] = (uint8_t) (bytes << 3); + crypto_hashblocks_sha256_c(state->ctx, padded, 64); + } else { + for (size_t i = inlen + 1; i < 120; ++i) { + padded[i] = 0; + } + padded[120] = (uint8_t) (bytes >> 53); + padded[121] = (uint8_t) (bytes >> 45); + padded[122] = (uint8_t) (bytes >> 37); + padded[123] = (uint8_t) (bytes >> 29); + padded[124] = (uint8_t) (bytes >> 21); + padded[125] = (uint8_t) (bytes >> 13); + padded[126] = (uint8_t) (bytes >> 5); + padded[127] = (uint8_t) (bytes << 3); + crypto_hashblocks_sha256_c(state->ctx, padded, 128); + } + + for (size_t i = 0; i < 32; ++i) { + out[i] = state->ctx[i]; + } + oqs_sha2_sha256_inc_ctx_release_c(state); +} + +void oqs_sha2_sha224_inc_finalize_c(uint8_t *out, sha224ctx *state, const uint8_t *in, size_t inlen) { + uint8_t tmp[32]; + oqs_sha2_sha256_inc_finalize_c(tmp, (sha256ctx *)state, in, inlen); + + for (size_t i = 0; i < 28; ++i) { + out[i] = tmp[i]; + } +} + +void oqs_sha2_sha512_inc_finalize_c(uint8_t *out, sha512ctx *state, const uint8_t *in, size_t inlen) { + uint8_t padded[256]; + uint64_t bytes = load_bigendian_64(state->ctx + 64) + inlen; + + crypto_hashblocks_sha512_c(state->ctx, in, inlen); + in += inlen; + inlen &= 127; + in -= inlen; + + for (size_t i = 0; i < inlen; ++i) { + padded[i] = in[i]; + } + padded[inlen] = 0x80; + + if (inlen < 112) { + for (size_t i = inlen + 1; i < 119; ++i) { + padded[i] = 0; + } + padded[119] = (uint8_t) (bytes >> 61); + padded[120] = (uint8_t) (bytes >> 53); + padded[121] = (uint8_t) (bytes >> 45); + padded[122] = (uint8_t) (bytes >> 37); + padded[123] = (uint8_t) (bytes >> 29); + padded[124] = (uint8_t) (bytes >> 21); + padded[125] = (uint8_t) (bytes >> 13); + padded[126] = (uint8_t) (bytes >> 5); + padded[127] = (uint8_t) (bytes << 3); + crypto_hashblocks_sha512_c(state->ctx, padded, 128); + } else { + for (size_t i = inlen + 1; i < 247; ++i) { + padded[i] = 0; + } + padded[247] = (uint8_t) (bytes >> 61); + padded[248] = (uint8_t) (bytes >> 53); + padded[249] = (uint8_t) (bytes >> 45); + padded[250] = (uint8_t) (bytes >> 37); + padded[251] = (uint8_t) (bytes >> 29); + padded[252] = (uint8_t) (bytes >> 21); + padded[253] = (uint8_t) (bytes >> 13); + padded[254] = (uint8_t) (bytes >> 5); + padded[255] = (uint8_t) (bytes << 3); + crypto_hashblocks_sha512_c(state->ctx, padded, 256); + } + + for (size_t i = 0; i < 64; ++i) { + out[i] = state->ctx[i]; + } + oqs_sha2_sha512_inc_ctx_release_c(state); +} + +void oqs_sha2_sha384_inc_finalize_c(uint8_t *out, sha384ctx *state, const uint8_t *in, size_t inlen) { + uint8_t tmp[64]; + oqs_sha2_sha512_inc_finalize_c(tmp, (sha512ctx *)state, in, inlen); + + for (size_t i = 0; i < 48; ++i) { + out[i] = tmp[i]; + } +} + +void oqs_sha2_sha224_c(uint8_t *out, const uint8_t *in, size_t inlen) { + sha224ctx state; + + oqs_sha2_sha224_inc_init_c(&state); + oqs_sha2_sha224_inc_finalize_c(out, &state, in, inlen); +} + +void oqs_sha2_sha256_c(uint8_t *out, const uint8_t *in, size_t inlen) { + sha256ctx state; + + oqs_sha2_sha256_inc_init_c(&state); + oqs_sha2_sha256_inc_finalize_c(out, &state, in, inlen); +} + +void oqs_sha2_sha384_c(uint8_t *out, const uint8_t *in, size_t inlen) { + sha384ctx state; + + oqs_sha2_sha384_inc_init_c(&state); + oqs_sha2_sha384_inc_finalize_c(out, &state, in, inlen); +} + +void oqs_sha2_sha512_c(uint8_t *out, const uint8_t *in, size_t inlen) { + sha512ctx state; + + oqs_sha2_sha512_inc_init_c(&state); + oqs_sha2_sha512_inc_finalize_c(out, &state, in, inlen); +} + diff --git a/lib/liboqs/src/common/sha2/sha2_local.h b/lib/liboqs/src/common/sha2/sha2_local.h new file mode 100644 index 000000000..028de764b --- /dev/null +++ b/lib/liboqs/src/common/sha2/sha2_local.h @@ -0,0 +1,86 @@ +/** + * \file sha2_local.h + * \brief Internal SHA2 functions that enable easy switching between native instructions + * and c implementations + * + * <b>Note this is not part of the OQS public API: implementations within liboqs can use these + * functions, but external consumers of liboqs should not use these functions.</b> + * + * \author Douglas Stebila + * + * SPDX-License-Identifier: MIT + */ + +#ifndef OQS_SHA2_LOCAL_H +#define OQS_SHA2_LOCAL_H + +#include <stddef.h> +#include <stdint.h> + +#if defined(__cplusplus) +extern "C" { +#endif + +typedef struct { + uint8_t *ctx; +} sha224ctx; + +typedef struct { + uint8_t *ctx; +} sha256ctx; + +typedef struct { + uint8_t *ctx; +} sha384ctx; + +typedef struct { + uint8_t *ctx; +} sha512ctx; + +void oqs_sha2_sha224_inc_init_c(sha224ctx *state); +void oqs_sha2_sha224_inc_ctx_clone_c(sha224ctx *dest, const sha224ctx *src); +void oqs_sha2_sha224_inc_blocks_c(sha224ctx *state, const uint8_t *in, size_t inblocks); +void oqs_sha2_sha224_inc_finalize_c(uint8_t *out, sha224ctx *state, const uint8_t *in, size_t inlen); +void oqs_sha2_sha224_inc_ctx_release_c(sha224ctx *state); + +void oqs_sha2_sha256_inc_init_c(sha256ctx *state); +void oqs_sha2_sha256_inc_ctx_clone_c(sha256ctx *dest, const sha256ctx *src); +void oqs_sha2_sha256_inc_blocks_c(sha256ctx *state, const uint8_t *in, size_t inblocks); +void oqs_sha2_sha256_inc_finalize_c(uint8_t *out, sha256ctx *state, const uint8_t *in, size_t inlen); +void oqs_sha2_sha256_inc_ctx_release_c(sha256ctx *state); + +void oqs_sha2_sha384(uint8_t *output, const uint8_t *input, size_t inplen); +void oqs_sha2_sha384_inc_init_c(sha384ctx *state); +void oqs_sha2_sha384_inc_ctx_clone_c(sha384ctx *dest, const sha384ctx *src); +void oqs_sha2_sha384_inc_blocks_c(sha384ctx *state, const uint8_t *in, size_t inblocks); +void oqs_sha2_sha384_inc_finalize_c(uint8_t *out, sha384ctx *state, const uint8_t *in, size_t inlen); +void oqs_sha2_sha384_inc_ctx_release_c(sha384ctx *state); + +void oqs_sha2_sha512_inc_init_c(sha512ctx *state); +void oqs_sha2_sha512_inc_ctx_clone_c(sha512ctx *dest, const sha512ctx *src); +void oqs_sha2_sha512_inc_blocks_c(sha512ctx *state, const uint8_t *in, size_t inblocks); +void oqs_sha2_sha512_inc_finalize_c(uint8_t *out, sha512ctx *state, const uint8_t *in, size_t inlen); +void oqs_sha2_sha512_inc_ctx_release_c(sha512ctx *state); + +// ARMv8 Crypto Extension functions +void oqs_sha2_sha224_inc_blocks_armv8(sha224ctx *state, const uint8_t *in, size_t inblocks); +void oqs_sha2_sha224_armv8(uint8_t *out, const uint8_t *in, size_t inlen); +void oqs_sha2_sha256_inc_blocks_armv8(sha256ctx *state, const uint8_t *in, size_t inblocks); +void oqs_sha2_sha256_armv8(uint8_t *out, const uint8_t *in, size_t inlen); + +void oqs_sha2_sha384_inc_init_armv8(sha384ctx *state); +void oqs_sha2_sha384_inc_ctx_clone_armv8(sha384ctx *dest, const sha384ctx *src); +void oqs_sha2_sha384_inc_blocks_armv8(sha384ctx *state, const uint8_t *in, size_t inblocks); +void oqs_sha2_sha384_inc_finalize_armv8(uint8_t *out, sha384ctx *state, const uint8_t *in, size_t inlen); +void oqs_sha2_sha384_inc_ctx_release_armv8(sha384ctx *state); + +void oqs_sha2_sha224_c(uint8_t *out, const uint8_t *in, size_t inlen); +void oqs_sha2_sha256_c(uint8_t *out, const uint8_t *in, size_t inlen); +void oqs_sha2_sha384_c(uint8_t *out, const uint8_t *in, size_t inlen); +void oqs_sha2_sha512_c(uint8_t *out, const uint8_t *in, size_t inlen); + +#if defined(__cplusplus) +} // extern "C" +#endif + +#endif // OQS_SHA2_LOCAL_H |