Group psa_tls_helpers

group psa_tls_helpers

Functions

static inline psa_ecc_family_t mbedtls_ecc_group_to_psa(mbedtls_ecp_group_id grpid, size_t *bits)

Convert an ECC curve identifier from the Mbed TLS encoding to PSA.

Note

This function is provided solely for the convenience of Mbed TLS and may be removed at any time without notice.

Parameters

  • grpid – An Mbed TLS elliptic curve identifier (MBEDTLS_ECP_DP_xxx).

  • bits – [out] On success, the bit size of the curve.

Returns

The corresponding PSA elliptic curve identifier (PSA_ECC_FAMILY_xxx).

Returns

0 on failure (grpid is not recognized).

mbedtls_ecp_group_id mbedtls_ecc_group_of_psa(psa_ecc_family_t curve, size_t bits, int bits_is_sloppy)

Convert an ECC curve identifier from the PSA encoding to Mbed TLS.

Note

This function is provided solely for the convenience of Mbed TLS and may be removed at any time without notice.

Parameters

  • curve – A PSA elliptic curve identifier (PSA_ECC_FAMILY_xxx).

  • bits – The bit-length of a private key on curve.

  • bits_is_sloppy – If true, bits may be the bit-length rounded up to the nearest multiple of 8. This allows the caller to infer the exact curve from the length of a key which is supplied as a byte string.

Returns

The corresponding Mbed TLS elliptic curve identifier (MBEDTLS_ECP_DP_xxx).

Returns

MBEDTLS_ECP_DP_NONE if curve is not recognized.

Returns

MBEDTLS_ECP_DP_NONE if bits is not correct for curve.