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Merge pull request #6064 from xkqian/tls13_add_psk

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Add psk code to tls13 client side
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Ronald Cron 2022-07-22 11:35:05 +02:00 • committed by GitHub
commit 4beb870fa8
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GPG key ID: 4AEE18F83AFDEB23
6 changed files with 574 additions and 13 deletions
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49
library/ssl_misc.h
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@ -1349,6 +1349,10 @@ void mbedtls_ssl_add_hs_msg_to_checksum( mbedtls_ssl_context *ssl,
unsigned char const *msg,
size_t msg_len );
void mbedtls_ssl_add_hs_hdr_to_checksum( mbedtls_ssl_context *ssl,
unsigned hs_type,
size_t total_hs_len );
#if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
#if !defined(MBEDTLS_USE_PSA_CRYPTO)
MBEDTLS_CHECK_RETURN_CRITICAL
@ -2449,4 +2453,49 @@ int mbedtls_ssl_check_dtls_clihlo_cookie(
unsigned char *obuf, size_t buf_len, size_t *olen );
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
/* Check if we have any PSK to offer, returns 0 if PSK is available.
* Assign the psk and ticket if pointers are present.
*/
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_get_psk_to_offer(
const mbedtls_ssl_context *ssl,
int *psk_type,
const unsigned char **psk, size_t *psk_len,
const unsigned char **psk_identity, size_t *psk_identity_len );
/**
* \brief Given an SSL context and its associated configuration, write the TLS
* 1.3 specific Pre-Shared key extension.
*
* \param[in] ssl SSL context
* \param[in] buf Base address of the buffer where to write the extension
* \param[in] end End address of the buffer where to write the extension
* \param[out] out_len Length in bytes of the Pre-Shared key extension: data
* written into the buffer \p buf by this function plus
* the length of the binders to be written.
* \param[out] binders_len Length of the binders to be written at the end of
* the extension.
*/
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_tls13_write_identities_of_pre_shared_key_ext(
mbedtls_ssl_context *ssl,
unsigned char *buf, unsigned char *end,
size_t *out_len, size_t *binders_len );
/**
* \brief Given an SSL context and its associated configuration, write the TLS
* 1.3 specific Pre-Shared key extension binders at the end of the
* ClientHello.
*
* \param[in] ssl SSL context
* \param[in] buf Base address of the buffer where to write the binders
* \param[in] end End address of the buffer where to write the binders
*/
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_tls13_write_binders_of_pre_shared_key_ext(
mbedtls_ssl_context *ssl,
unsigned char *buf, unsigned char *end );
#endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */
#endif /* ssl_misc.h */