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Zeroize internal buffers and variables in PKCS and SHA

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Zeroising of local buffers and variables which are used for calculations in
mbedtls_pkcs5_pbkdf2_hmac() and mbedtls_internal_sha*_process() functions
to erase sensitive data from memory.
Checked all function for possible missing zeroisation in PKCS and SHA.

Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
This commit is contained in:
gabor-mezei-arm 2020-07-30 16:41:25 +02:00
parent fa3b3e0d88
commit d5253bba32
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5 changed files with 37 additions and 0 deletions
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ChangeLog.d/zeroizations_of_sensitive_data_in_PKCS5_and_SHA.txt Normal file
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Security
* Zeroising of local buffers and variables which are used for calculations
in mbedtls_pkcs5_pbkdf2_hmac() and mbedtls_internal_sha*_process()
functions to erase sensitive data from memory. Reported by
Johan Malmgren and Johan Uppman Bruce from Sectra.