56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
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/**
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* file sha2.h
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*/
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#ifndef _SHA2_H
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#define _SHA2_H
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/**
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* brief SHA-256 context structure
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*/
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typedef struct
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{
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unsigned long total[2]; /*!< number of bytes processed */
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unsigned long state[8]; /*!< intermediate digest state */
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unsigned char buffer[64]; /*!< data block being processed */
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unsigned char ipad[64]; /*!< HMAC: inner padding */
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unsigned char opad[64]; /*!< HMAC: outer padding */
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int is224; /*!< 0 => SHA-256, else SHA-224 */
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}
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sha2_context;
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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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* brief SHA-256 context setup
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* param ctx context to be initialized
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* param is224 0 = use SHA256, 1 = use SHA224
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*/
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void sha2_starts( sha2_context *ctx, int is224 );
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/**
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* brief SHA-256 process buffer
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* param ctx SHA-256 context
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* param input buffer holding the data
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* param ilen length of the input data
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*/
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void sha2_update( sha2_context *ctx, unsigned char *input, int ilen );
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/**
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* brief SHA-256 final digest
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* param ctx SHA-256 context
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* param output SHA-224/256 checksum result
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*/
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void sha2_finish( sha2_context *ctx, unsigned char output[32] );
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int MD5_Get_SHA256(char *chIn, char* chOut);
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#ifdef __cplusplus
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}
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#endif
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#endif /* sha2.h */
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