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Update documentation for MBEDTLS_ENTROPY_NV_SEED

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This commit is contained in:
Paul Bakker 2016-06-07 10:59:03 +01:00
parent b598c293ce
commit 2a9ef7445d
1 changed files with 11 additions and 2 deletions
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13
include/mbedtls/config.h
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@ -811,11 +811,20 @@
*
* Requires: MBEDTLS_ENTROPY_C, MBEDTLS_PLATFORM_C
*
* Note: If you use the default implementation functions that read a seedfile
* \note The read/write functions that are used by the entropy source are
* determined in the platform layer, and can be modified at runtime and/or
* compile-time depending on the flags (MBEDTLS_PLATFORM_NV_SEED_*) used.
*
* \note If you use the default implementation functions that read a seedfile
* with regular fopen(), please make sure you make a seedfile with the
* proper name (defined in MBEDTLS_PLATFORM_STD_NV_SEED_FILE) and at
* least MBEDTLS_ENTROPY_BLOCK_SIZE bytes in size that can be read from
* and written to or you will get an entropy source error!
* and written to or you will get an entropy source error! The default
* implementation will only use the first MBEDTLS_ENTROPY_BLOCK_SIZE
* bytes from the file.
*
* \note The entropy collector will write to the seed file before entropy is
* given to an external source, to update it.
*/
//#define MBEDTLS_ENTROPY_NV_SEED