From a83d9bf0dbd4ff9cfc6703c189d17d4b8ed945ca Mon Sep 17 00:00:00 2001 From: Valerio Setti Date: Thu, 27 Jul 2023 18:15:20 +0200 Subject: [PATCH] crypto_sizes: size PSA max symbols according to actual support Signed-off-by: Valerio Setti --- include/psa/crypto_sizes.h | 86 ++++++++++++++++++++++++++++++-------- 1 file changed, 69 insertions(+), 17 deletions(-) diff --git a/include/psa/crypto_sizes.h b/include/psa/crypto_sizes.h index 8cc965b09f..278370c6a3 100644 --- a/include/psa/crypto_sizes.h +++ b/include/psa/crypto_sizes.h @@ -633,10 +633,18 @@ * This macro expands to a compile-time constant integer. This value * is the maximum size of a signature in bytes. */ -#define PSA_SIGNATURE_MAX_SIZE \ - (PSA_BITS_TO_BYTES(PSA_VENDOR_RSA_MAX_KEY_BITS) > PSA_VENDOR_ECDSA_SIGNATURE_MAX_SIZE ? \ - PSA_BITS_TO_BYTES(PSA_VENDOR_RSA_MAX_KEY_BITS) : \ - PSA_VENDOR_ECDSA_SIGNATURE_MAX_SIZE) +#define PSA_SIGNATURE_MAX_SIZE 0 + +#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC) && \ + (PSA_VENDOR_ECDSA_SIGNATURE_MAX_SIZE > PSA_SIGNATURE_MAX_SIZE) +#undef PSA_SIGNATURE_MAX_SIZE +#define PSA_SIGNATURE_MAX_SIZE PSA_VENDOR_ECDSA_SIGNATURE_MAX_SIZE +#endif +#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_BASIC) && \ + (PSA_BITS_TO_BYTES(PSA_VENDOR_RSA_MAX_KEY_BITS) > PSA_SIGNATURE_MAX_SIZE) +#undef PSA_SIGNATURE_MAX_SIZE +#define PSA_SIGNATURE_MAX_SIZE PSA_BITS_TO_BYTES(PSA_VENDOR_RSA_MAX_KEY_BITS) +#endif /** Sufficient output buffer size for psa_asymmetric_encrypt(). * @@ -948,10 +956,29 @@ * * See also #PSA_EXPORT_KEY_OUTPUT_SIZE(\p key_type, \p key_bits). */ -#define PSA_EXPORT_KEY_PAIR_MAX_SIZE \ - PSA_MAX_OF_THREE(PSA_KEY_EXPORT_RSA_KEY_PAIR_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS), \ - PSA_KEY_EXPORT_ECC_KEY_PAIR_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS), \ - PSA_KEY_EXPORT_FFDH_KEY_PAIR_MAX_SIZE(PSA_VENDOR_FFDH_MAX_KEY_BITS)) +#define PSA_EXPORT_KEY_PAIR_MAX_SIZE 0 + +#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC) && \ + (PSA_KEY_EXPORT_ECC_KEY_PAIR_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS) > \ + PSA_EXPORT_KEY_PAIR_MAX_SIZE) +#undef PSA_EXPORT_KEY_PAIR_MAX_SIZE +#define PSA_EXPORT_KEY_PAIR_MAX_SIZE \ + PSA_KEY_EXPORT_ECC_KEY_PAIR_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS) +#endif +#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_BASIC) && \ + (PSA_KEY_EXPORT_RSA_KEY_PAIR_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS) > \ + PSA_EXPORT_KEY_PAIR_MAX_SIZE) +#undef PSA_EXPORT_KEY_PAIR_MAX_SIZE +#define PSA_EXPORT_KEY_PAIR_MAX_SIZE \ + PSA_KEY_EXPORT_RSA_KEY_PAIR_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS) +#endif +#if defined(PSA_WANT_KEY_TYPE_DH_KEY_PAIR_BASIC) && \ + (PSA_KEY_EXPORT_FFDH_KEY_PAIR_MAX_SIZE(PSA_VENDOR_FFDH_MAX_KEY_BITS) > \ + PSA_EXPORT_KEY_PAIR_MAX_SIZE) +#undef PSA_EXPORT_KEY_PAIR_MAX_SIZE +#define PSA_EXPORT_KEY_PAIR_MAX_SIZE \ + PSA_KEY_EXPORT_DH_KEY_PAIR_MAX_SIZE(PSA_VENDOR_FFDH_MAX_KEY_BITS) +#endif /** Sufficient buffer size for exporting any asymmetric public key. * @@ -962,11 +989,29 @@ * * See also #PSA_EXPORT_PUBLIC_KEY_OUTPUT_SIZE(\p key_type, \p key_bits). */ -#define PSA_EXPORT_PUBLIC_KEY_MAX_SIZE \ - PSA_MAX_OF_THREE(PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS), \ - PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS), \ - PSA_KEY_EXPORT_FFDH_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_FFDH_MAX_KEY_BITS)) +#define PSA_EXPORT_PUBLIC_KEY_MAX_SIZE 0 +#if defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY) && \ + (PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS) > \ + PSA_EXPORT_PUBLIC_KEY_MAX_SIZE) +#undef PSA_EXPORT_PUBLIC_KEY_MAX_SIZE +#define PSA_EXPORT_PUBLIC_KEY_MAX_SIZE \ + PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS) +#endif +#if defined(PSA_WANT_KEY_TYPE_RSA_PUBLIC_KEY) && \ + (PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS) > \ + PSA_EXPORT_PUBLIC_KEY_MAX_SIZE) +#undef PSA_EXPORT_PUBLIC_KEY_MAX_SIZE +#define PSA_EXPORT_PUBLIC_KEY_MAX_SIZE \ + PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS) +#endif +#if defined(PSA_WANT_KEY_TYPE_DH_PUBLIC_KEY) && \ + (PSA_KEY_EXPORT_FFDH_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_FFDH_MAX_KEY_BITS) > \ + PSA_EXPORT_PUBLIC_KEY_MAX_SIZE) +#undef PSA_EXPORT_PUBLIC_KEY_MAX_SIZE +#define PSA_EXPORT_PUBLIC_KEY_MAX_SIZE \ + PSA_KEY_EXPORT_FFDH_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_FFDH_MAX_KEY_BITS) +#endif /** Sufficient output buffer size for psa_raw_key_agreement(). * @@ -1002,11 +1047,18 @@ * * See also #PSA_RAW_KEY_AGREEMENT_OUTPUT_SIZE(\p key_type, \p key_bits). */ -#define PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE \ - (PSA_BITS_TO_BYTES(PSA_VENDOR_ECC_MAX_CURVE_BITS) > \ - PSA_BITS_TO_BYTES(PSA_VENDOR_FFDH_MAX_KEY_BITS) ? \ - PSA_BITS_TO_BYTES(PSA_VENDOR_ECC_MAX_CURVE_BITS) : \ - PSA_BITS_TO_BYTES(PSA_VENDOR_FFDH_MAX_KEY_BITS)) +#define PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE 0 + +#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_BASIC) && \ + (PSA_BITS_TO_BYTES(PSA_VENDOR_ECC_MAX_CURVE_BITS) > PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE) +#undef PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE +#define PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE PSA_BITS_TO_BYTES(PSA_VENDOR_ECC_MAX_CURVE_BITS) +#endif +#if defined(PSA_WANT_KEY_TYPE_DH_KEY_PAIR_BASIC) && \ + (PSA_BITS_TO_BYTES(PSA_VENDOR_FFDH_MAX_KEY_BITS) > PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE) +#undef PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE +#define PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE PSA_BITS_TO_BYTES(PSA_VENDOR_FFDH_MAX_KEY_BITS) +#endif /** The default IV size for a cipher algorithm, in bytes. *