/* * Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the Apache License 2.0 (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy * in the file LICENSE in the source distribution or at * https://www.openssl.org/source/license.html */ /* * All SHA low level APIs are deprecated for public use, but still ok for * internal use. */ #include "internal/deprecated.h" #include /* diverse SHA macros */ #include "internal/sha3.h" /* KECCAK1600_WIDTH */ #include "crypto/evp.h" /* Used by legacy methods */ #include "crypto/sha.h" #include "legacy_meth.h" #include "evp_local.h" /*- * LEGACY methods for SHA. * These only remain to support engines that can get these methods. * Hardware support for SHA3 has been removed from these legacy cases. */ #define IMPLEMENT_LEGACY_EVP_MD_METH_SHA3(nm, fn, tag) \ static int nm##_init(EVP_MD_CTX *ctx) \ { \ return fn##_init(EVP_MD_CTX_get0_md_data(ctx), tag, ctx->digest->md_size * 8); \ } \ static int nm##_update(EVP_MD_CTX *ctx, const void *data, size_t count) \ { \ return fn##_update(EVP_MD_CTX_get0_md_data(ctx), data, count); \ } \ static int nm##_final(EVP_MD_CTX *ctx, unsigned char *md) \ { \ return fn##_final(md, EVP_MD_CTX_get0_md_data(ctx)); \ } #define IMPLEMENT_LEGACY_EVP_MD_METH_SHAKE(nm, fn, tag) \ static int nm##_init(EVP_MD_CTX *ctx) \ { \ return fn##_init(EVP_MD_CTX_get0_md_data(ctx), tag, ctx->digest->md_size * 8); \ } \ #define sha512_224_Init sha512_224_init #define sha512_256_Init sha512_256_init #define sha512_224_Update SHA512_Update #define sha512_224_Final SHA512_Final #define sha512_256_Update SHA512_Update #define sha512_256_Final SHA512_Final IMPLEMENT_LEGACY_EVP_MD_METH(sha1, SHA1) IMPLEMENT_LEGACY_EVP_MD_METH(sha224, SHA224) IMPLEMENT_LEGACY_EVP_MD_METH(sha256, SHA256) IMPLEMENT_LEGACY_EVP_MD_METH(sha384, SHA384) IMPLEMENT_LEGACY_EVP_MD_METH(sha512, SHA512) IMPLEMENT_LEGACY_EVP_MD_METH(sha512_224_int, sha512_224) IMPLEMENT_LEGACY_EVP_MD_METH(sha512_256_int, sha512_256) IMPLEMENT_LEGACY_EVP_MD_METH_SHA3(sha3_int, ossl_sha3, '\x06') IMPLEMENT_LEGACY_EVP_MD_METH_SHAKE(shake, ossl_sha3, '\x1f') static int sha1_int_ctrl(EVP_MD_CTX *ctx, int cmd, int p1, void *p2) { return ossl_sha1_ctrl(ctx != NULL ? EVP_MD_CTX_get0_md_data(ctx) : NULL, cmd, p1, p2); } static int shake_ctrl(EVP_MD_CTX *evp_ctx, int cmd, int p1, void *p2) { KECCAK1600_CTX *ctx = evp_ctx->md_data; switch (cmd) { case EVP_MD_CTRL_XOF_LEN: ctx->md_size = p1; return 1; default: return 0; } } static const EVP_MD sha1_md = { NID_sha1, NID_sha1WithRSAEncryption, SHA_DIGEST_LENGTH, EVP_MD_FLAG_DIGALGID_ABSENT, EVP_ORIG_GLOBAL, LEGACY_EVP_MD_METH_TABLE(sha1_init, sha1_update, sha1_final, sha1_int_ctrl, SHA_CBLOCK), }; const EVP_MD *EVP_sha1(void) { return &sha1_md; } static const EVP_MD sha224_md = { NID_sha224, NID_sha224WithRSAEncryption, SHA224_DIGEST_LENGTH, EVP_MD_FLAG_DIGALGID_ABSENT, EVP_ORIG_GLOBAL, LEGACY_EVP_MD_METH_TABLE(sha224_init, sha224_update, sha224_final, NULL, SHA256_CBLOCK), }; const EVP_MD *EVP_sha224(void) { return &sha224_md; } static const EVP_MD sha256_md = { NID_sha256, NID_sha256WithRSAEncryption, SHA256_DIGEST_LENGTH, EVP_MD_FLAG_DIGALGID_ABSENT, EVP_ORIG_GLOBAL, LEGACY_EVP_MD_METH_TABLE(sha256_init, sha256_update, sha256_final, NULL, SHA256_CBLOCK), }; const EVP_MD *EVP_sha256(void) { return &sha256_md; } static const EVP_MD sha512_224_md = { NID_sha512_224, NID_sha512_224WithRSAEncryption, SHA224_DIGEST_LENGTH, EVP_MD_FLAG_DIGALGID_ABSENT, EVP_ORIG_GLOBAL, LEGACY_EVP_MD_METH_TABLE(sha512_224_int_init, sha512_224_int_update, sha512_224_int_final, NULL, SHA512_CBLOCK), }; const EVP_MD *EVP_sha512_224(void) { return &sha512_224_md; } static const EVP_MD sha512_256_md = { NID_sha512_256, NID_sha512_256WithRSAEncryption, SHA256_DIGEST_LENGTH, EVP_MD_FLAG_DIGALGID_ABSENT, EVP_ORIG_GLOBAL, LEGACY_EVP_MD_METH_TABLE(sha512_256_int_init, sha512_256_int_update, sha512_256_int_final, NULL, SHA512_CBLOCK), }; const EVP_MD *EVP_sha512_256(void) { return &sha512_256_md; } static const EVP_MD sha384_md = { NID_sha384, NID_sha384WithRSAEncryption, SHA384_DIGEST_LENGTH, EVP_MD_FLAG_DIGALGID_ABSENT, EVP_ORIG_GLOBAL, LEGACY_EVP_MD_METH_TABLE(sha384_init, sha384_update, sha384_final, NULL, SHA512_CBLOCK), }; const EVP_MD *EVP_sha384(void) { return &sha384_md; } static const EVP_MD sha512_md = { NID_sha512, NID_sha512WithRSAEncryption, SHA512_DIGEST_LENGTH, EVP_MD_FLAG_DIGALGID_ABSENT, EVP_ORIG_GLOBAL, LEGACY_EVP_MD_METH_TABLE(sha512_init, sha512_update, sha512_final, NULL, SHA512_CBLOCK), }; const EVP_MD *EVP_sha512(void) { return &sha512_md; } #define EVP_MD_SHA3(bitlen) \ const EVP_MD *EVP_sha3_##bitlen(void) \ { \ static const EVP_MD sha3_##bitlen##_md = { \ NID_sha3_##bitlen, \ NID_RSA_SHA3_##bitlen, \ bitlen / 8, \ EVP_MD_FLAG_DIGALGID_ABSENT, \ EVP_ORIG_GLOBAL, \ LEGACY_EVP_MD_METH_TABLE(sha3_int_init, sha3_int_update, \ sha3_int_final, NULL, \ (KECCAK1600_WIDTH - bitlen * 2) / 8), \ }; \ return &sha3_##bitlen##_md; \ } #define EVP_MD_SHAKE(bitlen) \ const EVP_MD *EVP_shake##bitlen(void) \ { \ static const EVP_MD shake##bitlen##_md = { \ NID_shake##bitlen, \ 0, \ bitlen / 8, \ EVP_MD_FLAG_XOF, \ EVP_ORIG_GLOBAL, \ LEGACY_EVP_MD_METH_TABLE(shake_init, sha3_int_update, sha3_int_final, \ shake_ctrl, (KECCAK1600_WIDTH - bitlen * 2) / 8), \ }; \ return &shake##bitlen##_md; \ } EVP_MD_SHA3(224) EVP_MD_SHA3(256) EVP_MD_SHA3(384) EVP_MD_SHA3(512) EVP_MD_SHAKE(128) EVP_MD_SHAKE(256)