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fixup! HMAC_DRBG: support set_entropy_len() before seed()

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This commit is contained in:
Gilles Peskine 2019-10-23 17:45:59 +02:00
parent b1c7197166
commit 9d3baea439
1 changed files with 3 additions and 8 deletions
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11
include/mbedtls/hmac_drbg.h
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@ -139,7 +139,7 @@ void mbedtls_hmac_drbg_init( mbedtls_hmac_drbg_context *ctx );
* Note that SHA-256 is just as efficient as SHA-224.
* The security strength can be reduced if a smaller
* entropy length is set with
* mbedtls_hmac_drbg_set_entropy_len() afterwards.
* mbedtls_hmac_drbg_set_entropy_len().
*
* \note The default entropy length is the security strength
* (converted from bits to bytes). You can override
@ -222,14 +222,9 @@ void mbedtls_hmac_drbg_set_prediction_resistance( mbedtls_hmac_drbg_context *ctx
/**
* \brief This function sets the amount of entropy grabbed on each
* reseed.
* seed or reseed.
*
* The default value is set by mbedtls_hmac_drbg_seed().
*
* \note mbedtls_hmac_drbg_seed() always sets the entropy length
* to the default value based on the chosen MD algorithm,
* so this function only has an effect if it is called
* after mbedtls_hmac_drbg_seed().
* See the documentation of mbedtls_hmac_drbg_seed() for the default value.
*
* \param ctx The HMAC_DRBG context.
* \param len The amount of entropy to grab, in bytes.