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Add comment to config_psa.h about enabling PSA_HKDF/PSA_HKDF_EXRACT/PSA_HKDF_EXPAND algs

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Signed-off-by: Przemek Stekiel <przemyslaw.stekiel@mobica.com>
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Przemek Stekiel
2022-06-27 13:34:50 +02:00
parent 07040bb179
commit 18399d8d53
1 changed files with 4 additions and 0 deletions
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4
include/mbedtls/config_psa.h
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@ -606,6 +606,10 @@ extern "C" {
#define PSA_WANT_ALG_GCM 1 #define PSA_WANT_ALG_GCM 1
#endif /* MBEDTLS_GCM_C */ #endif /* MBEDTLS_GCM_C */
/* Enable PSA HKDF algorithm if mbedtls HKDF is supported.
* PSA HKDF EXTRACT and PSA HKDF EXPAND have minimal cost when
* PSA HKDF is enabled, so enable both algorithms together
* with PSA HKDF. */
#if defined(MBEDTLS_HKDF_C) #if defined(MBEDTLS_HKDF_C)
#define MBEDTLS_PSA_BUILTIN_ALG_HMAC 1 #define MBEDTLS_PSA_BUILTIN_ALG_HMAC 1
#define PSA_WANT_ALG_HMAC 1 #define PSA_WANT_ALG_HMAC 1