| /* |
| * 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 |
| */ |
| |
| #ifndef OSSL_PROV_CIPHERCOMMON_CCM_H |
| # define OSSL_PROV_CIPHERCOMMON_CCM_H |
| # pragma once |
| |
| # include "ciphercommon_aead.h" |
| |
| typedef struct prov_ccm_hw_st PROV_CCM_HW; |
| |
| # if defined(OPENSSL_CPUID_OBJ) && defined(__s390__) |
| /*- |
| * KMAC-AES parameter block - begin |
| * (see z/Architecture Principles of Operation >= SA22-7832-08) |
| */ |
| typedef struct S390X_kmac_params_st { |
| union { |
| unsigned long long g[2]; |
| unsigned char b[16]; |
| } icv; |
| unsigned char k[32]; |
| } S390X_KMAC_PARAMS; |
| /* KMAC-AES parameter block - end */ |
| # endif |
| |
| /* Base structure that is shared by AES & ARIA for CCM MODE */ |
| typedef struct prov_ccm_st { |
| unsigned int enc : 1; |
| unsigned int key_set : 1; /* Set if key initialised */ |
| unsigned int iv_set : 1; /* Set if an iv is set */ |
| unsigned int tag_set : 1; /* Set if tag is valid */ |
| unsigned int len_set : 1; /* Set if message length set */ |
| size_t l, m; /* L and M parameters from RFC3610 */ |
| size_t keylen; |
| size_t tls_aad_len; /* TLS AAD length */ |
| size_t tls_aad_pad_sz; |
| unsigned char iv[GENERIC_BLOCK_SIZE]; |
| unsigned char buf[GENERIC_BLOCK_SIZE]; |
| CCM128_CONTEXT ccm_ctx; |
| ccm128_f str; |
| const PROV_CCM_HW *hw; /* hardware specific methods */ |
| } PROV_CCM_CTX; |
| |
| PROV_CIPHER_FUNC(int, CCM_cipher, (PROV_CCM_CTX *ctx, unsigned char *out, \ |
| size_t *padlen, const unsigned char *in, \ |
| size_t len)); |
| PROV_CIPHER_FUNC(int, CCM_setkey, (PROV_CCM_CTX *ctx, \ |
| const unsigned char *key, size_t keylen)); |
| PROV_CIPHER_FUNC(int, CCM_setiv, (PROV_CCM_CTX *dat, \ |
| const unsigned char *iv, size_t ivlen, \ |
| size_t mlen)); |
| PROV_CIPHER_FUNC(int, CCM_setaad, (PROV_CCM_CTX *ctx, \ |
| const unsigned char *aad, size_t aadlen)); |
| PROV_CIPHER_FUNC(int, CCM_auth_encrypt, (PROV_CCM_CTX *ctx, \ |
| const unsigned char *in, \ |
| unsigned char *out, size_t len, \ |
| unsigned char *tag, size_t taglen)); |
| PROV_CIPHER_FUNC(int, CCM_auth_decrypt, (PROV_CCM_CTX *ctx, \ |
| const unsigned char *in, \ |
| unsigned char *out, size_t len, \ |
| unsigned char *tag, size_t taglen)); |
| PROV_CIPHER_FUNC(int, CCM_gettag, (PROV_CCM_CTX *ctx, \ |
| unsigned char *tag, size_t taglen)); |
| |
| /* |
| * CCM Mode internal method table used to handle hardware specific differences, |
| * (and different algorithms). |
| */ |
| struct prov_ccm_hw_st { |
| OSSL_CCM_setkey_fn setkey; |
| OSSL_CCM_setiv_fn setiv; |
| OSSL_CCM_setaad_fn setaad; |
| OSSL_CCM_auth_encrypt_fn auth_encrypt; |
| OSSL_CCM_auth_decrypt_fn auth_decrypt; |
| OSSL_CCM_gettag_fn gettag; |
| }; |
| |
| OSSL_FUNC_cipher_encrypt_init_fn ossl_ccm_einit; |
| OSSL_FUNC_cipher_decrypt_init_fn ossl_ccm_dinit; |
| OSSL_FUNC_cipher_get_ctx_params_fn ossl_ccm_get_ctx_params; |
| OSSL_FUNC_cipher_set_ctx_params_fn ossl_ccm_set_ctx_params; |
| OSSL_FUNC_cipher_update_fn ossl_ccm_stream_update; |
| OSSL_FUNC_cipher_final_fn ossl_ccm_stream_final; |
| OSSL_FUNC_cipher_cipher_fn ossl_ccm_cipher; |
| void ossl_ccm_initctx(PROV_CCM_CTX *ctx, size_t keybits, const PROV_CCM_HW *hw); |
| |
| int ossl_ccm_generic_setiv(PROV_CCM_CTX *ctx, const unsigned char *nonce, |
| size_t nlen, size_t mlen); |
| int ossl_ccm_generic_setaad(PROV_CCM_CTX *ctx, const unsigned char *aad, |
| size_t alen); |
| int ossl_ccm_generic_gettag(PROV_CCM_CTX *ctx, unsigned char *tag, size_t tlen); |
| int ossl_ccm_generic_auth_encrypt(PROV_CCM_CTX *ctx, const unsigned char *in, |
| unsigned char *out, size_t len, |
| unsigned char *tag, size_t taglen); |
| int ossl_ccm_generic_auth_decrypt(PROV_CCM_CTX *ctx, const unsigned char *in, |
| unsigned char *out, size_t len, |
| unsigned char *expected_tag, size_t taglen); |
| |
| #endif |