libwebsockets
Lightweight C library for HTML5 websockets
lws-genhash.h
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1 /*
2  * libwebsockets - small server side websockets and web server implementation
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4  * Copyright (C) 2010 - 2019 Andy Green <andy@warmcat.com>
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24 
35 
36 #if defined(LWS_WITH_AWSLC) || defined(LWS_WITH_BORINGSSL)
37 #include <openssl/hmac.h>
38 #endif
39 
40 
48 };
49 
55 };
56 
57 #define LWS_GENHASH_LARGEST 64
58 
59 #if defined(LWS_WITH_TLS) && defined(LWS_WITH_GENCRYPTO)
60 
61 struct lws_genhash_ctx {
62  uint8_t type;
63 #if defined(LWS_WITH_MBEDTLS)
64  union {
65  mbedtls_md5_context md5;
66  mbedtls_sha1_context sha1;
67  mbedtls_sha256_context sha256;
68  mbedtls_sha512_context sha512; /* 384 also uses this */
69  const mbedtls_md_info_t *hmac;
70  } u;
71 #else
72  const EVP_MD *evp_type;
73  EVP_MD_CTX *mdctx;
74 #endif
75 };
76 
77 struct lws_genhmac_ctx {
78  uint8_t type;
79 #if defined(LWS_WITH_MBEDTLS)
80  const mbedtls_md_info_t *hmac;
81  mbedtls_md_context_t ctx;
82 #else
83  const EVP_MD *evp_type;
84 
85 #if !defined(LWS_WITH_BORINGSSL) &&\
86  defined(LWS_HAVE_EVP_PKEY_new_raw_private_key)
87  EVP_MD_CTX *ctx;
88  EVP_PKEY *key;
89 #else
90 #if defined(LWS_HAVE_HMAC_CTX_new)
91  HMAC_CTX *ctx;
92 #else
93  HMAC_CTX ctx;
94 #endif
95 #endif
96 
97 #endif
98 };
99 
108 lws_genhash_size(enum lws_genhash_types type);
109 
118 lws_genhmac_size(enum lws_genhmac_types type);
119 
128 lws_genhash_init(struct lws_genhash_ctx *ctx, enum lws_genhash_types type);
129 
139 lws_genhash_update(struct lws_genhash_ctx *ctx, const void *in, size_t len);
140 
153 lws_genhash_destroy(struct lws_genhash_ctx *ctx, void *result);
154 
168 lws_genhmac_init(struct lws_genhmac_ctx *ctx, enum lws_genhmac_types type,
169  const uint8_t *key, size_t key_len);
170 
182 lws_genhmac_update(struct lws_genhmac_ctx *ctx, const void *in, size_t len);
183 
196 lws_genhmac_destroy(struct lws_genhmac_ctx *ctx, void *result);
197 
198 #endif
lws_genhash_types
Definition: lws-genhash.h:41
lws_genhmac_types
Definition: lws-genhash.h:50
@ LWS_GENHASH_TYPE_SHA384
Definition: lws-genhash.h:46
@ LWS_GENHASH_TYPE_UNKNOWN
Definition: lws-genhash.h:42
@ LWS_GENHASH_TYPE_MD5
Definition: lws-genhash.h:43
@ LWS_GENHASH_TYPE_SHA1
Definition: lws-genhash.h:44
@ LWS_GENHASH_TYPE_SHA512
Definition: lws-genhash.h:47
@ LWS_GENHASH_TYPE_SHA256
Definition: lws-genhash.h:45
@ LWS_GENHMAC_TYPE_SHA384
Definition: lws-genhash.h:53
@ LWS_GENHMAC_TYPE_SHA512
Definition: lws-genhash.h:54
@ LWS_GENHMAC_TYPE_UNKNOWN
Definition: lws-genhash.h:51
@ LWS_GENHMAC_TYPE_SHA256
Definition: lws-genhash.h:52
#define LWS_EXTERN
unsigned char uint8_t
#define LWS_WARN_UNUSED_RESULT
#define LWS_VISIBLE