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60 lines
2.9 KiB
C
60 lines
2.9 KiB
C
#ifndef MBEDTLS_HMAC_DRBG_H_
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#define MBEDTLS_HMAC_DRBG_H_
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#include "third_party/mbedtls/config.h"
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#include "third_party/mbedtls/md.h"
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COSMOPOLITAN_C_START_
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/* clang-format off */
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#define MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG -0x0003 /*< Too many random requested in single call. */
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#define MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG -0x0005 /*< Input too large (Entropy + additional). */
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#define MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR -0x0007 /*< Read/write error in file. */
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#define MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED -0x0009 /*< The entropy source failed. */
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#if !defined(MBEDTLS_HMAC_DRBG_RESEED_INTERVAL)
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#define MBEDTLS_HMAC_DRBG_RESEED_INTERVAL 10000 /*< Interval before reseed is performed by default */
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#endif
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#if !defined(MBEDTLS_HMAC_DRBG_MAX_INPUT)
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#define MBEDTLS_HMAC_DRBG_MAX_INPUT 256 /*< Maximum number of additional input bytes */
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#endif
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#if !defined(MBEDTLS_HMAC_DRBG_MAX_REQUEST)
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#define MBEDTLS_HMAC_DRBG_MAX_REQUEST 1024 /*< Maximum number of requested bytes per call */
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#endif
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#if !defined(MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT)
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#define MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT 384 /*< Maximum size of (re)seed buffer */
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#endif
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#define MBEDTLS_HMAC_DRBG_PR_OFF 0 /*< No prediction resistance */
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#define MBEDTLS_HMAC_DRBG_PR_ON 1 /*< Prediction resistance enabled */
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typedef struct mbedtls_hmac_drbg_context
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{
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mbedtls_md_context_t md_ctx;
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unsigned char V[MBEDTLS_MD_MAX_SIZE];
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int reseed_counter;
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size_t entropy_len;
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int prediction_resistance;
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int reseed_interval;
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int (*f_entropy)(void *, unsigned char *, size_t);
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void *p_entropy;
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} mbedtls_hmac_drbg_context;
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void mbedtls_hmac_drbg_init( mbedtls_hmac_drbg_context * );
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int mbedtls_hmac_drbg_seed( mbedtls_hmac_drbg_context *, const mbedtls_md_info_t * , int (*)(void *, unsigned char *, size_t), void *, const unsigned char *, size_t );
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int mbedtls_hmac_drbg_seed_buf( mbedtls_hmac_drbg_context *, const mbedtls_md_info_t *, const unsigned char *, size_t );
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void mbedtls_hmac_drbg_set_prediction_resistance( mbedtls_hmac_drbg_context *, int );
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void mbedtls_hmac_drbg_set_entropy_len( mbedtls_hmac_drbg_context *, size_t );
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void mbedtls_hmac_drbg_set_reseed_interval( mbedtls_hmac_drbg_context *, int );
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int mbedtls_hmac_drbg_update_ret( mbedtls_hmac_drbg_context *, const unsigned char *, size_t );
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int mbedtls_hmac_drbg_reseed( mbedtls_hmac_drbg_context *, const unsigned char *, size_t );
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int mbedtls_hmac_drbg_random_with_add( void *, unsigned char *, size_t , const unsigned char *, size_t );
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int mbedtls_hmac_drbg_random( void *, unsigned char *, size_t );
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void mbedtls_hmac_drbg_free( mbedtls_hmac_drbg_context * );
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int mbedtls_hmac_drbg_write_seed_file( mbedtls_hmac_drbg_context *, const char * );
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int mbedtls_hmac_drbg_update_seed_file( mbedtls_hmac_drbg_context *, const char * );
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int mbedtls_hmac_drbg_self_test( int );
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COSMOPOLITAN_C_END_
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#endif /* MBEDTLS_HMAC_DRBG_H_ */
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