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psa_util: update documentation for mbedtls_ecdsa_raw_to_der()
Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
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@ -192,12 +192,13 @@ static inline mbedtls_md_type_t mbedtls_md_type_from_psa_alg(psa_algorithm_t psa
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* PSA_BITS_TO_BYTES(bits) bytes.
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* \param[out] der Buffer that will be filled with the converted DER
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* output. It can overlap with raw buffer.
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* \param der_size Size of \p der in bytes. Given \p bits parameter:
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* * #MBEDTLS_ECDSA_MAX_SIG_LEN(\p bits) can be used
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* to determine a large enough buffer for any
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* \p raw input vector.
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* * The minimum size might be smaller in case
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* \p raw input vector contains padding zeros.
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* \param der_size Size of \p der in bytes. It is enough if \p der_size
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* is at least the size of the actual output. (The size
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* of the output can vary depending on the presence of
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* leading zeros in the data.) You can use
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* #MBEDTLS_ECDSA_MAX_SIG_LEN(\p bits) to determine a
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* size that is large enough for all signatures for a
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* given value of \p bits.
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* \param[out] der_len On success it contains the amount of valid data
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* (in bytes) written to \p der. It's undefined
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* in case of failure.
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