Function openthread_sys::otPlatCryptoEcdsaSign

source ·

pub unsafe extern "C" fn otPlatCryptoEcdsaSign(
    aKeyPair: *const otPlatCryptoEcdsaKeyPair,
    aHash: *const otPlatCryptoSha256Hash,
    aSignature: *mut otPlatCryptoEcdsaSignature
) -> otError

Expand description

Calculate the ECDSA signature for a hashed message using the private key from the input context.

Uses the deterministic digital signature generation procedure from RFC 6979.

@param[in] aKeyPair A pointer to an ECDSA key-pair structure where the key-pair is stored. @param[in] aHash A pointer to a SHA-256 hash structure where the hash value for signature calculation is stored. @param[out] aSignature A pointer to an ECDSA signature structure to output the calculated signature.

@retval OT_ERROR_NONE The signature was calculated successfully, @p aSignature was updated. @retval OT_ERROR_PARSE The key-pair DER format could not be parsed (invalid format). @retval OT_ERROR_NO_BUFS Failed to allocate buffer for signature calculation. @retval OT_ERROR_INVALID_ARGS The @p aContext is NULL.