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pk_wrap: pass curve size instead of a larger size of the exported key

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Whitespace fixes
This commit is contained in:
Andrzej Kurek 2019-01-14 05:14:18 -05:00
parent 93a38a3101
commit 62594a8b12
3 changed files with 21 additions and 2 deletions
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17
include/mbedtls/psa_util.h
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@ -216,6 +216,23 @@ static inline psa_ecc_curve_t mbedtls_psa_translate_ecc_group( mbedtls_ecp_group
}
}
#define MBEDTLS_PSA_ECC_KEY_BITS_OF_CURVE( curve ) \
( curve == PSA_ECC_CURVE_SECP192R1 ? 192 : \
curve == PSA_ECC_CURVE_SECP224R1 ? 224 : \
curve == PSA_ECC_CURVE_SECP256R1 ? 256 : \
curve == PSA_ECC_CURVE_SECP384R1 ? 384 : \
curve == PSA_ECC_CURVE_SECP521R1 ? 521 : \
curve == PSA_ECC_CURVE_SECP192K1 ? 192 : \
curve == PSA_ECC_CURVE_SECP224K1 ? 224 : \
curve == PSA_ECC_CURVE_SECP256K1 ? 256 : \
curve == PSA_ECC_CURVE_BRAINPOOL_P256R1 ? 256 : \
curve == PSA_ECC_CURVE_BRAINPOOL_P384R1 ? 384 : \
curve == PSA_ECC_CURVE_BRAINPOOL_P512R1 ? 512 : \
0 )
#define MBEDTLS_PSA_ECC_KEY_BYTES_OF_CURVE( curve ) \
( ( MBEDTLS_PSA_ECC_KEY_BITS_OF_CURVE( curve ) + 7 ) / 8 )
/* Translations for PK layer */
static inline int mbedtls_psa_err_translate_pk( psa_status_t status )

2
library/pk.c
View file

@ -573,7 +573,7 @@ int mbedtls_pk_wrap_as_opaque( mbedtls_pk_context *pk,
curve_id = mbedtls_ecp_curve_info_from_grp_id( ec->grp.id )->tls_id;
key_type = PSA_KEY_TYPE_ECC_KEYPAIR(
mbedtls_psa_parse_tls_ecc_group ( curve_id ) );
mbedtls_psa_parse_tls_ecc_group ( curve_id ) );
/* allocate a key slot */
if( PSA_SUCCESS != psa_allocate_key( key_type, d_len * 8, &key ) )

4
library/pk_wrap.c
View file

@ -577,7 +577,9 @@ static int ecdsa_verify_wrap( void *ctx, mbedtls_md_type_t md_alg,
psa_sig_md = PSA_ALG_ECDSA( psa_md );
psa_type = PSA_KEY_TYPE_ECC_PUBLIC_KEY( curve );
if( ( ret = psa_allocate_key( psa_type, key_len * 8, &key_slot ) ) != PSA_SUCCESS )
if( ( ret = psa_allocate_key( psa_type,
MBEDTLS_PSA_ECC_KEY_BITS_OF_CURVE(curve),
&key_slot ) ) != PSA_SUCCESS )
return( mbedtls_psa_err_translate_pk( ret ) );
psa_key_policy_init( &policy );