mbed TLS v2.2.0
sha256.h
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1 
23 #ifndef MBEDTLS_SHA256_H
24 #define MBEDTLS_SHA256_H
25 
26 #if !defined(MBEDTLS_CONFIG_FILE)
27 #include "config.h"
28 #else
29 #include MBEDTLS_CONFIG_FILE
30 #endif
31 
32 #include <stddef.h>
33 #include <stdint.h>
34 
35 #if !defined(MBEDTLS_SHA256_ALT)
36 // Regular implementation
37 //
38 
39 #ifdef __cplusplus
40 extern "C" {
41 #endif
42 
46 typedef struct
47 {
48  uint32_t total[2];
49  uint32_t state[8];
50  unsigned char buffer[64];
51  int is224;
52 }
54 
61 
68 
76  const mbedtls_sha256_context *src );
77 
84 void mbedtls_sha256_starts( mbedtls_sha256_context *ctx, int is224 );
85 
93 void mbedtls_sha256_update( mbedtls_sha256_context *ctx, const unsigned char *input,
94  size_t ilen );
95 
102 void mbedtls_sha256_finish( mbedtls_sha256_context *ctx, unsigned char output[32] );
103 
104 /* Internal use */
105 void mbedtls_sha256_process( mbedtls_sha256_context *ctx, const unsigned char data[64] );
106 
115 void mbedtls_sha256( const unsigned char *input, size_t ilen,
116  unsigned char output[32], int is224 );
117 
123 int mbedtls_sha256_self_test( int verbose );
124 
125 #ifdef __cplusplus
126 }
127 #endif
128 
129 #else /* MBEDTLS_SHA256_ALT */
130 #include "sha256_alt.h"
131 #endif /* MBEDTLS_SHA256_ALT */
132 
133 #endif /* mbedtls_sha256.h */
Compatibility names (set of defines)
void mbedtls_sha256_clone(mbedtls_sha256_context *dst, const mbedtls_sha256_context *src)
Clone (the state of) a SHA-256 context.
void mbedtls_sha256_process(mbedtls_sha256_context *ctx, const unsigned char data[64])
int mbedtls_sha256_self_test(int verbose, int device_instance)
Checkup routine.
void mbedtls_sha256_init(mbedtls_sha256_context *ctx)
Initialize SHA-256 context.
void mbedtls_sha256_finish(mbedtls_sha256_context *ctx, unsigned char output[32])
SHA-256 final digest.
int mbedtls_sha256(const unsigned char *input, size_t ilen, unsigned char output[32], int is224)
Output = SHA-256( input buffer )
SHA-256 context structure.
Definition: sha256_alt.h:58
int mbedtls_sha256_starts(mbedtls_sha256_context *ctx, int is224)
SHA-256 context setup.
void mbedtls_sha256_update(mbedtls_sha256_context *ctx, const unsigned char *input, size_t ilen)
SHA-256 process buffer.
void mbedtls_sha256_free(mbedtls_sha256_context *ctx)
Clear SHA-256 context.
SHA-224 and SHA-256 cryptographic hash function.