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			62 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			62 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|   ROM functions for hardware SHA support.
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| 
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|   It is not recommended to use these functions directly.  If using
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|   them from esp-idf then use the esp_sha_lock_engine() and
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|   esp_sha_lock_memory_block() functions in hwcrypto/sha.h to ensure
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|   exclusive access.
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|  */
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| // Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
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| //
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| // Licensed under the Apache License, Version 2.0 (the "License");
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| // you may not use this file except in compliance with the License.
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| // You may obtain a copy of the License at
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| 
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| //     http://www.apache.org/licenses/LICENSE-2.0
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| //
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| // Unless required by applicable law or agreed to in writing, software
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| // distributed under the License is distributed on an "AS IS" BASIS,
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| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| // See the License for the specific language governing permissions and
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| // limitations under the License.
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| #ifndef _ROM_SHA_H_
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| #define _ROM_SHA_H_
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| 
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| #include <stdint.h>
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| #include <stdbool.h>
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| 
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| #ifdef __cplusplus
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| extern "C" {
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| #endif
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| 
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| typedef struct SHAContext {
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|     bool start;
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|     uint32_t total_input_bits[4];
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| } SHA_CTX;
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| 
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| enum SHA_TYPE {
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|     SHA1 = 0,
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|     SHA2_256,
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|     SHA2_384,
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|     SHA2_512,
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| 
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| 
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|     SHA_INVALID = -1,
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| };
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| 
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| void ets_sha_init(SHA_CTX *ctx);
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| 
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| void ets_sha_enable(void);
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| 
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| void ets_sha_disable(void);
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| 
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| void ets_sha_update(SHA_CTX *ctx, enum SHA_TYPE type, const uint8_t *input, size_t input_bits);
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| 
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| void ets_sha_finish(SHA_CTX *ctx, enum SHA_TYPE type, uint8_t *output);
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| 
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| #ifdef __cplusplus
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| }
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| #endif
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| 
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| #endif /* _ROM_SHA_H_ */
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