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3bfe9005 SL |
1 | /* |
2 | * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved. | |
3 | * | |
4 | * Licensed under the Apache License 2.0 (the "License"). You may not use | |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
8 | */ | |
9 | ||
68a51d59 | 10 | #include "ciphercommon_aead.h" |
4a42e264 | 11 | |
3bfe9005 SL |
12 | typedef struct prov_ccm_hw_st PROV_CCM_HW; |
13 | ||
14 | #if defined(OPENSSL_CPUID_OBJ) && defined(__s390__) | |
15 | /*- | |
16 | * KMAC-AES parameter block - begin | |
17 | * (see z/Architecture Principles of Operation >= SA22-7832-08) | |
18 | */ | |
19 | typedef struct S390X_kmac_params_st { | |
20 | union { | |
21 | unsigned long long g[2]; | |
22 | unsigned char b[16]; | |
23 | } icv; | |
24 | unsigned char k[32]; | |
25 | } S390X_KMAC_PARAMS; | |
26 | /* KMAC-AES parameter block - end */ | |
27 | #endif | |
28 | ||
29 | /* Base structure that is shared by AES & ARIA for CCM MODE */ | |
30 | typedef struct prov_ccm_st { | |
1c3ace68 SL |
31 | unsigned int enc : 1; |
32 | unsigned int key_set : 1; /* Set if key initialised */ | |
33 | unsigned int iv_set : 1; /* Set if an iv is set */ | |
34 | unsigned int tag_set : 1; /* Set if tag is valid */ | |
35 | unsigned int len_set : 1; /* Set if message length set */ | |
36 | size_t l, m; /* L and M parameters from RFC3610 */ | |
3bfe9005 | 37 | size_t keylen; |
dc64dc2e | 38 | size_t tls_aad_len; /* TLS AAD length */ |
1c3ace68 | 39 | size_t tls_aad_pad_sz; |
e85f3a14 RL |
40 | unsigned char iv[GENERIC_BLOCK_SIZE]; |
41 | unsigned char buf[GENERIC_BLOCK_SIZE]; | |
3bfe9005 SL |
42 | CCM128_CONTEXT ccm_ctx; |
43 | ccm128_f str; | |
1c3ace68 | 44 | const PROV_CCM_HW *hw; /* hardware specific methods */ |
3bfe9005 SL |
45 | } PROV_CCM_CTX; |
46 | ||
3bfe9005 SL |
47 | PROV_CIPHER_FUNC(int, CCM_cipher, (PROV_CCM_CTX *ctx, unsigned char *out, \ |
48 | size_t *padlen, const unsigned char *in, \ | |
49 | size_t len)); | |
50 | PROV_CIPHER_FUNC(int, CCM_setkey, (PROV_CCM_CTX *ctx, \ | |
51 | const unsigned char *key, size_t keylen)); | |
52 | PROV_CIPHER_FUNC(int, CCM_setiv, (PROV_CCM_CTX *dat, \ | |
53 | const unsigned char *iv, size_t ivlen, \ | |
54 | size_t mlen)); | |
55 | PROV_CIPHER_FUNC(int, CCM_setaad, (PROV_CCM_CTX *ctx, \ | |
56 | const unsigned char *aad, size_t aadlen)); | |
57 | PROV_CIPHER_FUNC(int, CCM_auth_encrypt, (PROV_CCM_CTX *ctx, \ | |
58 | const unsigned char *in, \ | |
59 | unsigned char *out, size_t len, \ | |
60 | unsigned char *tag, size_t taglen)); | |
61 | PROV_CIPHER_FUNC(int, CCM_auth_decrypt, (PROV_CCM_CTX *ctx, \ | |
62 | const unsigned char *in, \ | |
63 | unsigned char *out, size_t len, \ | |
64 | unsigned char *tag, size_t taglen)); | |
65 | PROV_CIPHER_FUNC(int, CCM_gettag, (PROV_CCM_CTX *ctx, \ | |
66 | unsigned char *tag, size_t taglen)); | |
67 | ||
68 | /* | |
69 | * CCM Mode internal method table used to handle hardware specific differences, | |
70 | * (and different algorithms). | |
71 | */ | |
72 | struct prov_ccm_hw_st { | |
73 | OSSL_CCM_setkey_fn setkey; | |
74 | OSSL_CCM_setiv_fn setiv; | |
75 | OSSL_CCM_setaad_fn setaad; | |
76 | OSSL_CCM_auth_encrypt_fn auth_encrypt; | |
77 | OSSL_CCM_auth_decrypt_fn auth_decrypt; | |
78 | OSSL_CCM_gettag_fn gettag; | |
79 | }; | |
80 | ||
363b1e5d DMSP |
81 | OSSL_FUNC_cipher_encrypt_init_fn ccm_einit; |
82 | OSSL_FUNC_cipher_decrypt_init_fn ccm_dinit; | |
83 | OSSL_FUNC_cipher_get_ctx_params_fn ccm_get_ctx_params; | |
84 | OSSL_FUNC_cipher_set_ctx_params_fn ccm_set_ctx_params; | |
85 | OSSL_FUNC_cipher_update_fn ccm_stream_update; | |
86 | OSSL_FUNC_cipher_final_fn ccm_stream_final; | |
87 | OSSL_FUNC_cipher_cipher_fn ccm_cipher; | |
e1178600 | 88 | void ccm_initctx(PROV_CCM_CTX *ctx, size_t keybits, const PROV_CCM_HW *hw); |
4a42e264 SL |
89 | |
90 | int ccm_generic_setiv(PROV_CCM_CTX *ctx, const unsigned char *nonce, | |
91 | size_t nlen, size_t mlen); | |
92 | int ccm_generic_setaad(PROV_CCM_CTX *ctx, const unsigned char *aad, size_t alen); | |
93 | int ccm_generic_gettag(PROV_CCM_CTX *ctx, unsigned char *tag, size_t tlen); | |
94 | int ccm_generic_auth_encrypt(PROV_CCM_CTX *ctx, const unsigned char *in, | |
95 | unsigned char *out, size_t len, | |
96 | unsigned char *tag, size_t taglen); | |
97 | int ccm_generic_auth_decrypt(PROV_CCM_CTX *ctx, const unsigned char *in, | |
98 | unsigned char *out, size_t len, | |
99 | unsigned char *expected_tag, size_t taglen); |