mbedtls_ecc_group_of_psa() function

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

Syntax

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Summary

Declaration

from crypto_extra.h:642

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

Arguments

Argument

Description

curve

A PSA elliptic curve identifier (`PSA_ECC_FAMILY_xxx`).

bits

The bit-length of a private key on \p curve.

bits_is_sloppy

If true, \p 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.

Return value

The corresponding Mbed TLS elliptic curve identifier (`MBEDTLS_ECP_DP_xxx`). #MBEDTLS_ECP_DP_NONE if \c curve is not recognized. #MBEDTLS_ECP_DP_NONE if \p bits is not correct for \p curve.

Notes

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

Examples

References

from examples

mbedtls_ecc_group_of_psa() function

Syntax

Arguments

Return value

Notes

Examples

References

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