64 void HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len,  in HMAC_Init_ex()  argument
73 		ctx->md=md;  in HMAC_Init_ex()
76 		md=ctx->md;  in HMAC_Init_ex()
82 		OPENSSL_assert(j <= (int)sizeof(ctx->key));  in HMAC_Init_ex()
85 			EVP_DigestInit_ex(&ctx->md_ctx,md, impl);  in HMAC_Init_ex()
86 			EVP_DigestUpdate(&ctx->md_ctx,key,len);  in HMAC_Init_ex()
87 			EVP_DigestFinal_ex(&(ctx->md_ctx),ctx->key,  in HMAC_Init_ex()
88 				&ctx->key_length);  in HMAC_Init_ex()
92 			OPENSSL_assert(len>=0 && len<=(int)sizeof(ctx->key));  in HMAC_Init_ex()
93 			memcpy(ctx->key,key,len);  in HMAC_Init_ex()
94 			ctx->key_length=len;  in HMAC_Init_ex()
96 		if(ctx->key_length != HMAC_MAX_MD_CBLOCK)  in HMAC_Init_ex()
97 			memset(&ctx->key[ctx->key_length], 0,  in HMAC_Init_ex()
98 				HMAC_MAX_MD_CBLOCK - ctx->key_length);  in HMAC_Init_ex()
104 			pad[i]=0x36^ctx->key[i];  in HMAC_Init_ex()
105 		EVP_DigestInit_ex(&ctx->i_ctx,md, impl);  in HMAC_Init_ex()
106 		EVP_DigestUpdate(&ctx->i_ctx,pad,EVP_MD_block_size(md));  in HMAC_Init_ex()
109 			pad[i]=0x5c^ctx->key[i];  in HMAC_Init_ex()
110 		EVP_DigestInit_ex(&ctx->o_ctx,md, impl);  in HMAC_Init_ex()
111 		EVP_DigestUpdate(&ctx->o_ctx,pad,EVP_MD_block_size(md));  in HMAC_Init_ex()
113 	EVP_MD_CTX_copy_ex(&ctx->md_ctx,&ctx->i_ctx);  in HMAC_Init_ex()
116 void HMAC_Init(HMAC_CTX *ctx, const void *key, int len,  in HMAC_Init()  argument
120 	    HMAC_CTX_init(ctx);  in HMAC_Init()
121 	HMAC_Init_ex(ctx,key,len,md, NULL);  in HMAC_Init()
124 void HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, size_t len)  in HMAC_Update()  argument
126 	EVP_DigestUpdate(&ctx->md_ctx,data,len);  in HMAC_Update()
129 void HMAC_Final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len)  in HMAC_Final()  argument
135 	j=EVP_MD_block_size(ctx->md);  in HMAC_Final()
137 	EVP_DigestFinal_ex(&ctx->md_ctx,buf,&i);  in HMAC_Final()
138 	EVP_MD_CTX_copy_ex(&ctx->md_ctx,&ctx->o_ctx);  in HMAC_Final()
139 	EVP_DigestUpdate(&ctx->md_ctx,buf,i);  in HMAC_Final()
140 	EVP_DigestFinal_ex(&ctx->md_ctx,md,len);  in HMAC_Final()
143 void HMAC_CTX_init(HMAC_CTX *ctx)  in HMAC_CTX_init()  argument
145 	EVP_MD_CTX_init(&ctx->i_ctx);  in HMAC_CTX_init()
146 	EVP_MD_CTX_init(&ctx->o_ctx);  in HMAC_CTX_init()
147 	EVP_MD_CTX_init(&ctx->md_ctx);  in HMAC_CTX_init()
150 void HMAC_CTX_cleanup(HMAC_CTX *ctx)  in HMAC_CTX_cleanup()  argument
152 	EVP_MD_CTX_cleanup(&ctx->i_ctx);  in HMAC_CTX_cleanup()
153 	EVP_MD_CTX_cleanup(&ctx->o_ctx);  in HMAC_CTX_cleanup()
154 	EVP_MD_CTX_cleanup(&ctx->md_ctx);  in HMAC_CTX_cleanup()
155 	memset(ctx,0,sizeof *ctx);  in HMAC_CTX_cleanup()