mbedtls_x509_crt_profile
x509_crt.h
uint32_t uint32_t mbedtls_x509_crt_profile::allowed_mds allowed_mds mbedtls_x509_crt_profile::allowed_mds

MDs for signatures

uint32_t uint32_t mbedtls_x509_crt_profile::allowed_pks allowed_pks mbedtls_x509_crt_profile::allowed_pks

PK algs for public keys; this applies to all certificates in the provided chain.

uint32_t uint32_t mbedtls_x509_crt_profile::allowed_curves allowed_curves mbedtls_x509_crt_profile::allowed_curves

Elliptic curves for ECDSA

uint32_t uint32_t mbedtls_x509_crt_profile::rsa_min_bitlen rsa_min_bitlen mbedtls_x509_crt_profile::rsa_min_bitlen

Minimum size for RSA keys

Security profile for certificate verification.

All lists are bitfields, built by ORing flags from MBEDTLS_X509_ID_FLAG().

The fields of this structure are part of the public API and can be manipulated directly by applications. Future versions of the library may add extra fields or reorder existing fields.

You can create custom profiles by starting from a copy of an existing profile, such as mbedtls_x509_crt_profile_default or mbedtls_x509_ctr_profile_none and then tune it to your needs.

For example to allow SHA-224 in addition to the default:

mbedtls_x509_crt_profile my_profile = mbedtls_x509_crt_profile_default; my_profile.allowed_mds |= MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA224 );

Or to allow only RSA-3072+ with SHA-256:

mbedtls_x509_crt_profile my_profile = mbedtls_x509_crt_profile_none; my_profile.allowed_mds = MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA256 ); my_profile.allowed_pks = MBEDTLS_X509_ID_FLAG( MBEDTLS_PK_RSA ); my_profile.rsa_min_bitlen = 3072;

- mbedtls_x509_crt_profile
  allowed_curves
- mbedtls_x509_crt_profile
  allowed_mds
- mbedtls_x509_crt_profile
  allowed_pks
- mbedtls_x509_crt_profile
  rsa_min_bitlen