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Update the documentation of mbedtls_pk_sign_restartable()

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Clarify the documentation regarding the signature size.

Also fix minor niggles about references to mbedtls_pk_sign().
This commit is contained in:
Gilles Peskine 2019-11-08 18:37:19 +01:00
parent 5bcb24b56e
commit 9db14fa478
1 changed files with 10 additions and 5 deletions
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15
include/mbedtls/pk.h
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@ -531,16 +531,21 @@ int mbedtls_pk_sign( mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
* *
* \param ctx The PK context to use. It must have been set up * \param ctx The PK context to use. It must have been set up
* with a private key. * with a private key.
* \param md_alg Hash algorithm used (see notes) * \param md_alg Hash algorithm used (see notes for mbedtls_pk_sign())
* \param hash Hash of the message to sign * \param hash Hash of the message to sign
* \param hash_len Hash length or 0 (see notes) * \param hash_len Hash length or 0 (see notes for mbedtls_pk_sign())
* \param sig Place to write the signature * \param sig Place to write the signature.
* \param sig_len Number of bytes written * It must have enough room for the signature.
* #MBEDTLS_PK_SIGNATURE_MAX_SIZE is always enough.
* You may use a smaller buffer if it is large enough
* given the key type.
* \param sig_len On successful return,
* the number of bytes written to \p sig.
* \param f_rng RNG function * \param f_rng RNG function
* \param p_rng RNG parameter * \param p_rng RNG parameter
* \param rs_ctx Restart context (NULL to disable restart) * \param rs_ctx Restart context (NULL to disable restart)
* *
* \return See \c mbedtls_pk_sign(), or * \return See \c mbedtls_pk_sign().
* \return #MBEDTLS_ERR_ECP_IN_PROGRESS if maximum number of * \return #MBEDTLS_ERR_ECP_IN_PROGRESS if maximum number of
* operations was reached: see \c mbedtls_ecp_set_max_ops(). * operations was reached: see \c mbedtls_ecp_set_max_ops().
*/ */