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Polish API and documentation

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This commit is contained in:
Manuel Pégourié-Gonnard 2015-08-14 14:33:05 +02:00
parent e1927101fb
commit f7368c983a
2 changed files with 29 additions and 27 deletions
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46
include/mbedtls/ecjpake.h
View File

@ -24,20 +24,20 @@
#define MBEDTLS_ECJPAKE_H
/*
* Implementation based on Chapter 7.4 of the Thread v1.0 Specification,
* available from the Thread Group http://threadgroup.org/
*
* J-PAKE is a password-authenticated key exchange that allows deriving a
* strong shared secret from a (potentially low entropy) pre-shared
* passphrase, with forward secrecy and mutual authentication.
* https://en.wikipedia.org/wiki/Password_Authenticated_Key_Exchange_by_Juggling
*
* This file implements the EC J-PAKE algorithm with payload serializations
* suitable for use in TLS, but the result could be used outside TLS.
* This file implements the Elliptic Curve variant of J-PAKE,
* as defined in Chapter 7.4 of the Thread v1.0 Specification,
* available to members of the Thread Group http://threadgroup.org/
*
* As the J-PAKE algorithm is inherently symmetric, so is our API.
* Each party needs to send its first round message, in any order, to the
* other party, then each sends its second round message, in any order.
* The payloads are serialized in a way suitable for use in TLS, but could
* also be use outside TLS.
*/
#include "ecp.h"
@ -84,7 +84,7 @@ typedef struct
mbedtls_mpi s; /**< Pre-shared secret (passphrase) */
} mbedtls_ecjpake_context;
/*
/**
* \brief Initialize a context
* (just makes it ready for setup() or free()).
*
@ -92,7 +92,7 @@ typedef struct
*/
void mbedtls_ecjpake_init( mbedtls_ecjpake_context *ctx );
/*
/**
* \brief Set up a context for use
*
* \note Currently the only values for hash/curve allowed by the
@ -115,7 +115,7 @@ int mbedtls_ecjpake_setup( mbedtls_ecjpake_context *ctx,
const unsigned char *secret,
size_t len );
/*
/**
* \brief Generate and write the first round message
* (TLS: contents of the Client/ServerHello extension,
* excluding extension type and length bytes)
@ -134,8 +134,9 @@ int mbedtls_ecjpake_write_round_one( mbedtls_ecjpake_context *ctx,
unsigned char *buf, size_t len, size_t *olen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng );
/*
* \brief Generate and write the first round message
/**
* \brief Read and process the first round message
* (TLS: contents of the Client/ServerHello extension,
* excluding extension type and length bytes)
*
@ -150,9 +151,9 @@ int mbedtls_ecjpake_read_round_one( mbedtls_ecjpake_context *ctx,
const unsigned char *buf,
size_t len );
/*
* \brief Generate and write ClientECJPAKEParams
* (the contents for the ClientKeyExchange)
/**
* \brief Generate and write the second round message
* (TLS: contents of the Client/ServerKeyExchange)
*
* \param ctx Context to use
* \param buf Buffer to write the contents to
@ -169,9 +170,9 @@ int mbedtls_ecjpake_write_round_two( mbedtls_ecjpake_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng );
/*
* \brief Read and process ClientECJPAKEParams
* (the contents for the ClientKeyExchange)
/**
* \brief Read and process the second round message
* (TLS: contents of the Client/ServerKeyExchange)
*
* \param ctx Context to use
* \param buf Pointer to the message
@ -181,11 +182,12 @@ int mbedtls_ecjpake_write_round_two( mbedtls_ecjpake_context *ctx,
* a negative error code otherwise
*/
int mbedtls_ecjpake_read_round_two( mbedtls_ecjpake_context *ctx,
const unsigned char *buf,
size_t len );
const unsigned char *buf,
size_t len );
/*
* \brief Derive the Pre-Master Secret used by TLS
/**
* \brief Derive the shared secret
* (TLS: Pre-Master Secret)
*
* \param ctx
* \param buf Buffer to write the contents to
@ -197,12 +199,12 @@ int mbedtls_ecjpake_read_round_two( mbedtls_ecjpake_context *ctx,
* \return 0 if successfull,
* a negative error code otherwise
*/
int mbedtls_ecjpake_tls_derive_pms( mbedtls_ecjpake_context *ctx,
int mbedtls_ecjpake_derive_secret( mbedtls_ecjpake_context *ctx,
unsigned char *buf, size_t len, size_t *olen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng );
/*
/**
* \brief Free a context's content
*
* \param ctx context to free

10
library/ecjpake.c
View File

@ -647,7 +647,7 @@ cleanup:
/*
* Derive PMS (7.4.2.7 / 7.4.2.8)
*/
int mbedtls_ecjpake_tls_derive_pms( mbedtls_ecjpake_context *ctx,
int mbedtls_ecjpake_derive_secret( mbedtls_ecjpake_context *ctx,
unsigned char *buf, size_t len, size_t *olen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
@ -946,7 +946,7 @@ int mbedtls_ecjpake_self_test( int verbose )
TEST_ASSERT( mbedtls_ecjpake_read_round_two( &cli, buf, len ) == 0 );
TEST_ASSERT( mbedtls_ecjpake_tls_derive_pms( &cli,
TEST_ASSERT( mbedtls_ecjpake_derive_secret( &cli,
pms, sizeof( pms ), &pmslen, ecjpake_lgc, NULL ) == 0 );
TEST_ASSERT( mbedtls_ecjpake_write_round_two( &cli,
@ -954,7 +954,7 @@ int mbedtls_ecjpake_self_test( int verbose )
TEST_ASSERT( mbedtls_ecjpake_read_round_two( &srv, buf, len ) == 0 );
TEST_ASSERT( mbedtls_ecjpake_tls_derive_pms( &srv,
TEST_ASSERT( mbedtls_ecjpake_derive_secret( &srv,
buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 );
TEST_ASSERT( len == pmslen );
@ -996,7 +996,7 @@ int mbedtls_ecjpake_self_test( int verbose )
sizeof( ecjpake_test_cli_kx ) ) == 0 );
/* Server derives PMS */
TEST_ASSERT( mbedtls_ecjpake_tls_derive_pms( &srv,
TEST_ASSERT( mbedtls_ecjpake_derive_secret( &srv,
buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 );
TEST_ASSERT( len == sizeof( ecjpake_test_pms ) );
@ -1005,7 +1005,7 @@ int mbedtls_ecjpake_self_test( int verbose )
memset( buf, 0, len ); /* Avoid interferences with next step */
/* Client derives PMS */
TEST_ASSERT( mbedtls_ecjpake_tls_derive_pms( &cli,
TEST_ASSERT( mbedtls_ecjpake_derive_secret( &cli,
buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 );
TEST_ASSERT( len == sizeof( ecjpake_test_pms ) );