1 | /* Copyright (c) (2010-2012,2014-2021) Apple Inc. All rights reserved. |
2 | * |
3 | * corecrypto is licensed under Apple Inc.’s Internal Use License Agreement (which |
4 | * is contained in the License.txt file distributed with corecrypto) and only to |
5 | * people who accept that license. IMPORTANT: Any license rights granted to you by |
6 | * Apple Inc. (if any) are limited to internal use within your organization only on |
7 | * devices and computers you own or control, for the sole purpose of verifying the |
8 | * security characteristics and correct functioning of the Apple Software. You may |
9 | * not, directly or indirectly, redistribute the Apple Software or any portions thereof. |
10 | */ |
11 | |
12 | #ifndef _CORECRYPTO_CCHMAC_H_ |
13 | #define _CORECRYPTO_CCHMAC_H_ |
14 | |
15 | #include <corecrypto/cc.h> |
16 | #include <corecrypto/ccdigest.h> |
17 | |
18 | /* An hmac_ctx_t is normally allocated as an array of these. */ |
19 | struct cchmac_ctx { |
20 | uint8_t b[1]; |
21 | } CC_ALIGNED(8); |
22 | |
23 | typedef struct cchmac_ctx* cchmac_ctx_t; |
24 | |
25 | #define cchmac_ctx_size(STATE_SIZE, BLOCK_SIZE) (cc_pad_align(ccdigest_ctx_size(STATE_SIZE, BLOCK_SIZE)) + (STATE_SIZE)) |
26 | #define cchmac_di_size(_di_) (cchmac_ctx_size((_di_)->state_size, (_di_)->block_size)) |
27 | |
28 | #define cchmac_ctx_n(STATE_SIZE, BLOCK_SIZE) ccn_nof_size(cchmac_ctx_size((STATE_SIZE), (BLOCK_SIZE))) |
29 | |
30 | #define cchmac_ctx_decl(STATE_SIZE, BLOCK_SIZE, _name_) cc_ctx_decl_vla(struct cchmac_ctx, cchmac_ctx_size(STATE_SIZE, BLOCK_SIZE), _name_) |
31 | #define cchmac_ctx_clear(STATE_SIZE, BLOCK_SIZE, _name_) cc_clear(cchmac_ctx_size(STATE_SIZE, BLOCK_SIZE), _name_) |
32 | #define cchmac_di_decl(_di_, _name_) cchmac_ctx_decl((_di_)->state_size, (_di_)->block_size, _name_) |
33 | #define cchmac_di_clear(_di_, _name_) cchmac_ctx_clear((_di_)->state_size, (_di_)->block_size, _name_) |
34 | |
35 | /* Return a ccdigest_ctx_t which can be accesed with the macros in ccdigest.h */ |
36 | #define cchmac_digest_ctx(_di_, HC) ((ccdigest_ctx_t)(HC)) |
37 | |
38 | /* Accesors for ostate fields, this is all cchmac_ctx_t adds to the ccdigest_ctx_t. */ |
39 | #define cchmac_ostate(_di_, HC) ((ccdigest_state_t)(((cchmac_ctx_t)(HC))->b + cc_pad_align(ccdigest_di_size(_di_)))) |
40 | #define cchmac_ostate8(_di_, HC) (ccdigest_u8(cchmac_ostate(_di_, HC))) |
41 | #define cchmac_ostate32(_di_, HC) (ccdigest_u32(cchmac_ostate(_di_, HC))) |
42 | #define cchmac_ostate64(_di_, HC) (ccdigest_u64(cchmac_ostate(_di_, HC))) |
43 | #define cchmac_ostateccn(_di_, HC) (ccdigest_ccn(cchmac_ostate(_di_, HC))) |
44 | |
45 | /* Convenience accessors for ccdigest_ctx_t fields. */ |
46 | #define cchmac_istate(_di_, HC) ccdigest_state(_di_, ((ccdigest_ctx_t)(HC))) |
47 | #define cchmac_istate8(_di_, HC) ccdigest_u8(cchmac_istate(_di_, HC)) |
48 | #define cchmac_istate32(_di_, HC) ccdigest_u32(cchmac_istate(_di_, HC)) |
49 | #define cchmac_istate64(_di_, HC) ccdigest_u64(cchmac_istate(_di_, HC)) |
50 | #define cchmac_istateccn(_di_, HC) ccdigest_ccn(cchmac_istate(_di_, HC)) |
51 | |
52 | #define cchmac_data(_di_, HC) ccdigest_data(_di_, ((ccdigest_ctx_t)(HC))) |
53 | #define cchmac_num(_di_, HC) ccdigest_num(_di_, ((ccdigest_ctx_t)(HC))) |
54 | #define cchmac_nbits(_di_, HC) ccdigest_nbits(_di_, ((ccdigest_ctx_t)(HC))) |
55 | |
56 | void cchmac_init(const struct ccdigest_info *di, cchmac_ctx_t ctx, |
57 | size_t key_len, const void *key); |
58 | void cchmac_update(const struct ccdigest_info *di, cchmac_ctx_t ctx, |
59 | size_t data_len, const void *data); |
60 | void cchmac_final(const struct ccdigest_info *di, cchmac_ctx_t ctx, |
61 | unsigned char *mac); |
62 | |
63 | void cchmac(const struct ccdigest_info *di, size_t key_len, |
64 | const void *key, size_t data_len, const void *data, |
65 | unsigned char *mac); |
66 | |
67 | #endif /* _CORECRYPTO_CCHMAC_H_ */ |
68 | |