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Implement MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG

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Implement support for MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG.

For test purposes, write an implementation that uses libc rand().

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine
2020-11-13 18:47:18 +01:00
parent 1c49f1ac46
commit 4fc21fdeb6
6 changed files with 97 additions and 5 deletions
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5
include/mbedtls/check_config.h
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@ -605,6 +605,11 @@
#error "MBEDTLS_PSA_INJECT_ENTROPY is not compatible with actual entropy sources"
#endif
#if defined(MBEDTLS_PSA_INJECT_ENTROPY) && \
!defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG)
#error "MBEDTLS_PSA_INJECT_ENTROPY is not compatible with MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG"
#endif
#if defined(MBEDTLS_PSA_ITS_FILE_C) && \
!defined(MBEDTLS_FS_IO)
#error "MBEDTLS_PSA_ITS_FILE_C defined, but not all prerequisites"