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-rw-r--r--lib/mbedtls-2.27.0/library/ecjpake.c1146
1 files changed, 0 insertions, 1146 deletions
diff --git a/lib/mbedtls-2.27.0/library/ecjpake.c b/lib/mbedtls-2.27.0/library/ecjpake.c
deleted file mode 100644
index 464ff51..0000000
--- a/lib/mbedtls-2.27.0/library/ecjpake.c
+++ /dev/null
@@ -1,1146 +0,0 @@
-/*
- * Elliptic curve J-PAKE
- *
- * Copyright The Mbed TLS Contributors
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may
- * not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * References in the code are to the Thread v1.0 Specification,
- * available to members of the Thread Group http://threadgroup.org/
- */
-
-#include "common.h"
-
-#if defined(MBEDTLS_ECJPAKE_C)
-
-#include "mbedtls/ecjpake.h"
-#include "mbedtls/platform_util.h"
-#include "mbedtls/error.h"
-
-#include <string.h>
-
-#if !defined(MBEDTLS_ECJPAKE_ALT)
-
-/* Parameter validation macros based on platform_util.h */
-#define ECJPAKE_VALIDATE_RET( cond ) \
- MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_ECP_BAD_INPUT_DATA )
-#define ECJPAKE_VALIDATE( cond ) \
- MBEDTLS_INTERNAL_VALIDATE( cond )
-
-/*
- * Convert a mbedtls_ecjpake_role to identifier string
- */
-static const char * const ecjpake_id[] = {
- "client",
- "server"
-};
-
-#define ID_MINE ( ecjpake_id[ ctx->role ] )
-#define ID_PEER ( ecjpake_id[ 1 - ctx->role ] )
-
-/*
- * Initialize context
- */
-void mbedtls_ecjpake_init( mbedtls_ecjpake_context *ctx )
-{
- ECJPAKE_VALIDATE( ctx != NULL );
-
- ctx->md_info = NULL;
- mbedtls_ecp_group_init( &ctx->grp );
- ctx->point_format = MBEDTLS_ECP_PF_UNCOMPRESSED;
-
- mbedtls_ecp_point_init( &ctx->Xm1 );
- mbedtls_ecp_point_init( &ctx->Xm2 );
- mbedtls_ecp_point_init( &ctx->Xp1 );
- mbedtls_ecp_point_init( &ctx->Xp2 );
- mbedtls_ecp_point_init( &ctx->Xp );
-
- mbedtls_mpi_init( &ctx->xm1 );
- mbedtls_mpi_init( &ctx->xm2 );
- mbedtls_mpi_init( &ctx->s );
-}
-
-/*
- * Free context
- */
-void mbedtls_ecjpake_free( mbedtls_ecjpake_context *ctx )
-{
- if( ctx == NULL )
- return;
-
- ctx->md_info = NULL;
- mbedtls_ecp_group_free( &ctx->grp );
-
- mbedtls_ecp_point_free( &ctx->Xm1 );
- mbedtls_ecp_point_free( &ctx->Xm2 );
- mbedtls_ecp_point_free( &ctx->Xp1 );
- mbedtls_ecp_point_free( &ctx->Xp2 );
- mbedtls_ecp_point_free( &ctx->Xp );
-
- mbedtls_mpi_free( &ctx->xm1 );
- mbedtls_mpi_free( &ctx->xm2 );
- mbedtls_mpi_free( &ctx->s );
-}
-
-/*
- * Setup context
- */
-int mbedtls_ecjpake_setup( mbedtls_ecjpake_context *ctx,
- mbedtls_ecjpake_role role,
- mbedtls_md_type_t hash,
- mbedtls_ecp_group_id curve,
- const unsigned char *secret,
- size_t len )
-{
- int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-
- ECJPAKE_VALIDATE_RET( ctx != NULL );
- ECJPAKE_VALIDATE_RET( role == MBEDTLS_ECJPAKE_CLIENT ||
- role == MBEDTLS_ECJPAKE_SERVER );
- ECJPAKE_VALIDATE_RET( secret != NULL || len == 0 );
-
- ctx->role = role;
-
- if( ( ctx->md_info = mbedtls_md_info_from_type( hash ) ) == NULL )
- return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE );
-
- MBEDTLS_MPI_CHK( mbedtls_ecp_group_load( &ctx->grp, curve ) );
-
- MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->s, secret, len ) );
-
-cleanup:
- if( ret != 0 )
- mbedtls_ecjpake_free( ctx );
-
- return( ret );
-}
-
-/*
- * Check if context is ready for use
- */
-int mbedtls_ecjpake_check( const mbedtls_ecjpake_context *ctx )
-{
- ECJPAKE_VALIDATE_RET( ctx != NULL );
-
- if( ctx->md_info == NULL ||
- ctx->grp.id == MBEDTLS_ECP_DP_NONE ||
- ctx->s.p == NULL )
- {
- return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
- }
-
- return( 0 );
-}
-
-/*
- * Write a point plus its length to a buffer
- */
-static int ecjpake_write_len_point( unsigned char **p,
- const unsigned char *end,
- const mbedtls_ecp_group *grp,
- const int pf,
- const mbedtls_ecp_point *P )
-{
- int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- size_t len;
-
- /* Need at least 4 for length plus 1 for point */
- if( end < *p || end - *p < 5 )
- return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
-
- ret = mbedtls_ecp_point_write_binary( grp, P, pf,
- &len, *p + 4, end - ( *p + 4 ) );
- if( ret != 0 )
- return( ret );
-
- (*p)[0] = (unsigned char)( ( len >> 24 ) & 0xFF );
- (*p)[1] = (unsigned char)( ( len >> 16 ) & 0xFF );
- (*p)[2] = (unsigned char)( ( len >> 8 ) & 0xFF );
- (*p)[3] = (unsigned char)( ( len ) & 0xFF );
-
- *p += 4 + len;
-
- return( 0 );
-}
-
-/*
- * Size of the temporary buffer for ecjpake_hash:
- * 3 EC points plus their length, plus ID and its length (4 + 6 bytes)
- */
-#define ECJPAKE_HASH_BUF_LEN ( 3 * ( 4 + MBEDTLS_ECP_MAX_PT_LEN ) + 4 + 6 )
-
-/*
- * Compute hash for ZKP (7.4.2.2.2.1)
- */
-static int ecjpake_hash( const mbedtls_md_info_t *md_info,
- const mbedtls_ecp_group *grp,
- const int pf,
- const mbedtls_ecp_point *G,
- const mbedtls_ecp_point *V,
- const mbedtls_ecp_point *X,
- const char *id,
- mbedtls_mpi *h )
-{
- int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- unsigned char buf[ECJPAKE_HASH_BUF_LEN];
- unsigned char *p = buf;
- const unsigned char *end = buf + sizeof( buf );
- const size_t id_len = strlen( id );
- unsigned char hash[MBEDTLS_MD_MAX_SIZE];
-
- /* Write things to temporary buffer */
- MBEDTLS_MPI_CHK( ecjpake_write_len_point( &p, end, grp, pf, G ) );
- MBEDTLS_MPI_CHK( ecjpake_write_len_point( &p, end, grp, pf, V ) );
- MBEDTLS_MPI_CHK( ecjpake_write_len_point( &p, end, grp, pf, X ) );
-
- if( end - p < 4 )
- return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
-
- *p++ = (unsigned char)( ( id_len >> 24 ) & 0xFF );
- *p++ = (unsigned char)( ( id_len >> 16 ) & 0xFF );
- *p++ = (unsigned char)( ( id_len >> 8 ) & 0xFF );
- *p++ = (unsigned char)( ( id_len ) & 0xFF );
-
- if( end < p || (size_t)( end - p ) < id_len )
- return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
-
- memcpy( p, id, id_len );
- p += id_len;
-
- /* Compute hash */
- MBEDTLS_MPI_CHK( mbedtls_md( md_info, buf, p - buf, hash ) );
-
- /* Turn it into an integer mod n */
- MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( h, hash,
- mbedtls_md_get_size( md_info ) ) );
- MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( h, h, &grp->N ) );
-
-cleanup:
- return( ret );
-}
-
-/*
- * Parse a ECShnorrZKP (7.4.2.2.2) and verify it (7.4.2.3.3)
- */
-static int ecjpake_zkp_read( const mbedtls_md_info_t *md_info,
- const mbedtls_ecp_group *grp,
- const int pf,
- const mbedtls_ecp_point *G,
- const mbedtls_ecp_point *X,
- const char *id,
- const unsigned char **p,
- const unsigned char *end )
-{
- int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- mbedtls_ecp_point V, VV;
- mbedtls_mpi r, h;
- size_t r_len;
-
- mbedtls_ecp_point_init( &V );
- mbedtls_ecp_point_init( &VV );
- mbedtls_mpi_init( &r );
- mbedtls_mpi_init( &h );
-
- /*
- * struct {
- * ECPoint V;
- * opaque r<1..2^8-1>;
- * } ECSchnorrZKP;
- */
- if( end < *p )
- return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
-
- MBEDTLS_MPI_CHK( mbedtls_ecp_tls_read_point( grp, &V, p, end - *p ) );
-
- if( end < *p || (size_t)( end - *p ) < 1 )
- {
- ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
- goto cleanup;
- }
-
- r_len = *(*p)++;
-
- if( end < *p || (size_t)( end - *p ) < r_len || r_len == 0 )
- {
- ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
- goto cleanup;
- }
-
- MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &r, *p, r_len ) );
- *p += r_len;
-
- /*
- * Verification
- */
- MBEDTLS_MPI_CHK( ecjpake_hash( md_info, grp, pf, G, &V, X, id, &h ) );
- MBEDTLS_MPI_CHK( mbedtls_ecp_muladd( (mbedtls_ecp_group *) grp,
- &VV, &h, X, &r, G ) );
-
- if( mbedtls_ecp_point_cmp( &VV, &V ) != 0 )
- {
- ret = MBEDTLS_ERR_ECP_VERIFY_FAILED;
- goto cleanup;
- }
-
-cleanup:
- mbedtls_ecp_point_free( &V );
- mbedtls_ecp_point_free( &VV );
- mbedtls_mpi_free( &r );
- mbedtls_mpi_free( &h );
-
- return( ret );
-}
-
-/*
- * Generate ZKP (7.4.2.3.2) and write it as ECSchnorrZKP (7.4.2.2.2)
- */
-static int ecjpake_zkp_write( const mbedtls_md_info_t *md_info,
- const mbedtls_ecp_group *grp,
- const int pf,
- const mbedtls_ecp_point *G,
- const mbedtls_mpi *x,
- const mbedtls_ecp_point *X,
- const char *id,
- unsigned char **p,
- const unsigned char *end,
- int (*f_rng)(void *, unsigned char *, size_t),
- void *p_rng )
-{
- int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- mbedtls_ecp_point V;
- mbedtls_mpi v;
- mbedtls_mpi h; /* later recycled to hold r */
- size_t len;
-
- if( end < *p )
- return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
-
- mbedtls_ecp_point_init( &V );
- mbedtls_mpi_init( &v );
- mbedtls_mpi_init( &h );
-
- /* Compute signature */
- MBEDTLS_MPI_CHK( mbedtls_ecp_gen_keypair_base( (mbedtls_ecp_group *) grp,
- G, &v, &V, f_rng, p_rng ) );
- MBEDTLS_MPI_CHK( ecjpake_hash( md_info, grp, pf, G, &V, X, id, &h ) );
- MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &h, &h, x ) ); /* x*h */
- MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &h, &v, &h ) ); /* v - x*h */
- MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &h, &h, &grp->N ) ); /* r */
-
- /* Write it out */
- MBEDTLS_MPI_CHK( mbedtls_ecp_tls_write_point( grp, &V,
- pf, &len, *p, end - *p ) );
- *p += len;
-
- len = mbedtls_mpi_size( &h ); /* actually r */
- if( end < *p || (size_t)( end - *p ) < 1 + len || len > 255 )
- {
- ret = MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL;
- goto cleanup;
- }
-
- *(*p)++ = (unsigned char)( len & 0xFF );
- MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &h, *p, len ) ); /* r */
- *p += len;
-
-cleanup:
- mbedtls_ecp_point_free( &V );
- mbedtls_mpi_free( &v );
- mbedtls_mpi_free( &h );
-
- return( ret );
-}
-
-/*
- * Parse a ECJPAKEKeyKP (7.4.2.2.1) and check proof
- * Output: verified public key X
- */
-static int ecjpake_kkp_read( const mbedtls_md_info_t *md_info,
- const mbedtls_ecp_group *grp,
- const int pf,
- const mbedtls_ecp_point *G,
- mbedtls_ecp_point *X,
- const char *id,
- const unsigned char **p,
- const unsigned char *end )
-{
- int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-
- if( end < *p )
- return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
-
- /*
- * struct {
- * ECPoint X;
- * ECSchnorrZKP zkp;
- * } ECJPAKEKeyKP;
- */
- MBEDTLS_MPI_CHK( mbedtls_ecp_tls_read_point( grp, X, p, end - *p ) );
- if( mbedtls_ecp_is_zero( X ) )
- {
- ret = MBEDTLS_ERR_ECP_INVALID_KEY;
- goto cleanup;
- }
-
- MBEDTLS_MPI_CHK( ecjpake_zkp_read( md_info, grp, pf, G, X, id, p, end ) );
-
-cleanup:
- return( ret );
-}
-
-/*
- * Generate an ECJPAKEKeyKP
- * Output: the serialized structure, plus private/public key pair
- */
-static int ecjpake_kkp_write( const mbedtls_md_info_t *md_info,
- const mbedtls_ecp_group *grp,
- const int pf,
- const mbedtls_ecp_point *G,
- mbedtls_mpi *x,
- mbedtls_ecp_point *X,
- const char *id,
- unsigned char **p,
- const unsigned char *end,
- int (*f_rng)(void *, unsigned char *, size_t),
- void *p_rng )
-{
- int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- size_t len;
-
- if( end < *p )
- return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
-
- /* Generate key (7.4.2.3.1) and write it out */
- MBEDTLS_MPI_CHK( mbedtls_ecp_gen_keypair_base( (mbedtls_ecp_group *) grp, G, x, X,
- f_rng, p_rng ) );
- MBEDTLS_MPI_CHK( mbedtls_ecp_tls_write_point( grp, X,
- pf, &len, *p, end - *p ) );
- *p += len;
-
- /* Generate and write proof */
- MBEDTLS_MPI_CHK( ecjpake_zkp_write( md_info, grp, pf, G, x, X, id,
- p, end, f_rng, p_rng ) );
-
-cleanup:
- return( ret );
-}
-
-/*
- * Read a ECJPAKEKeyKPPairList (7.4.2.3) and check proofs
- * Ouputs: verified peer public keys Xa, Xb
- */
-static int ecjpake_kkpp_read( const mbedtls_md_info_t *md_info,
- const mbedtls_ecp_group *grp,
- const int pf,
- const mbedtls_ecp_point *G,
- mbedtls_ecp_point *Xa,
- mbedtls_ecp_point *Xb,
- const char *id,
- const unsigned char *buf,
- size_t len )
-{
- int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- const unsigned char *p = buf;
- const unsigned char *end = buf + len;
-
- /*
- * struct {
- * ECJPAKEKeyKP ecjpake_key_kp_pair_list[2];
- * } ECJPAKEKeyKPPairList;
- */
- MBEDTLS_MPI_CHK( ecjpake_kkp_read( md_info, grp, pf, G, Xa, id, &p, end ) );
- MBEDTLS_MPI_CHK( ecjpake_kkp_read( md_info, grp, pf, G, Xb, id, &p, end ) );
-
- if( p != end )
- ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
-
-cleanup:
- return( ret );
-}
-
-/*
- * Generate a ECJPAKEKeyKPPairList
- * Outputs: the serialized structure, plus two private/public key pairs
- */
-static int ecjpake_kkpp_write( const mbedtls_md_info_t *md_info,
- const mbedtls_ecp_group *grp,
- const int pf,
- const mbedtls_ecp_point *G,
- mbedtls_mpi *xm1,
- mbedtls_ecp_point *Xa,
- mbedtls_mpi *xm2,
- mbedtls_ecp_point *Xb,
- const char *id,
- unsigned char *buf,
- size_t len,
- size_t *olen,
- int (*f_rng)(void *, unsigned char *, size_t),
- void *p_rng )
-{
- int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- unsigned char *p = buf;
- const unsigned char *end = buf + len;
-
- MBEDTLS_MPI_CHK( ecjpake_kkp_write( md_info, grp, pf, G, xm1, Xa, id,
- &p, end, f_rng, p_rng ) );
- MBEDTLS_MPI_CHK( ecjpake_kkp_write( md_info, grp, pf, G, xm2, Xb, id,
- &p, end, f_rng, p_rng ) );
-
- *olen = p - buf;
-
-cleanup:
- return( ret );
-}
-
-/*
- * Read and process the first round message
- */
-int mbedtls_ecjpake_read_round_one( mbedtls_ecjpake_context *ctx,
- const unsigned char *buf,
- size_t len )
-{
- ECJPAKE_VALIDATE_RET( ctx != NULL );
- ECJPAKE_VALIDATE_RET( buf != NULL );
-
- return( ecjpake_kkpp_read( ctx->md_info, &ctx->grp, ctx->point_format,
- &ctx->grp.G,
- &ctx->Xp1, &ctx->Xp2, ID_PEER,
- buf, len ) );
-}
-
-/*
- * Generate and write the first round message
- */
-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 )
-{
- ECJPAKE_VALIDATE_RET( ctx != NULL );
- ECJPAKE_VALIDATE_RET( buf != NULL );
- ECJPAKE_VALIDATE_RET( olen != NULL );
- ECJPAKE_VALIDATE_RET( f_rng != NULL );
-
- return( ecjpake_kkpp_write( ctx->md_info, &ctx->grp, ctx->point_format,
- &ctx->grp.G,
- &ctx->xm1, &ctx->Xm1, &ctx->xm2, &ctx->Xm2,
- ID_MINE, buf, len, olen, f_rng, p_rng ) );
-}
-
-/*
- * Compute the sum of three points R = A + B + C
- */
-static int ecjpake_ecp_add3( mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
- const mbedtls_ecp_point *A,
- const mbedtls_ecp_point *B,
- const mbedtls_ecp_point *C )
-{
- int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- mbedtls_mpi one;
-
- mbedtls_mpi_init( &one );
-
- MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &one, 1 ) );
- MBEDTLS_MPI_CHK( mbedtls_ecp_muladd( grp, R, &one, A, &one, B ) );
- MBEDTLS_MPI_CHK( mbedtls_ecp_muladd( grp, R, &one, R, &one, C ) );
-
-cleanup:
- mbedtls_mpi_free( &one );
-
- return( ret );
-}
-
-/*
- * Read and process second round message (C: 7.4.2.5, S: 7.4.2.6)
- */
-int mbedtls_ecjpake_read_round_two( mbedtls_ecjpake_context *ctx,
- const unsigned char *buf,
- size_t len )
-{
- int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- const unsigned char *p = buf;
- const unsigned char *end = buf + len;
- mbedtls_ecp_group grp;
- mbedtls_ecp_point G; /* C: GB, S: GA */
-
- ECJPAKE_VALIDATE_RET( ctx != NULL );
- ECJPAKE_VALIDATE_RET( buf != NULL );
-
- mbedtls_ecp_group_init( &grp );
- mbedtls_ecp_point_init( &G );
-
- /*
- * Server: GA = X3 + X4 + X1 (7.4.2.6.1)
- * Client: GB = X1 + X2 + X3 (7.4.2.5.1)
- * Unified: G = Xm1 + Xm2 + Xp1
- * We need that before parsing in order to check Xp as we read it
- */
- MBEDTLS_MPI_CHK( ecjpake_ecp_add3( &ctx->grp, &G,
- &ctx->Xm1, &ctx->Xm2, &ctx->Xp1 ) );
-
- /*
- * struct {
- * ECParameters curve_params; // only client reading server msg
- * ECJPAKEKeyKP ecjpake_key_kp;
- * } Client/ServerECJPAKEParams;
- */
- if( ctx->role == MBEDTLS_ECJPAKE_CLIENT )
- {
- MBEDTLS_MPI_CHK( mbedtls_ecp_tls_read_group( &grp, &p, len ) );
- if( grp.id != ctx->grp.id )
- {
- ret = MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE;
- goto cleanup;
- }
- }
-
- MBEDTLS_MPI_CHK( ecjpake_kkp_read( ctx->md_info, &ctx->grp,
- ctx->point_format,
- &G, &ctx->Xp, ID_PEER, &p, end ) );
-
- if( p != end )
- {
- ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
- goto cleanup;
- }
-
-cleanup:
- mbedtls_ecp_group_free( &grp );
- mbedtls_ecp_point_free( &G );
-
- return( ret );
-}
-
-/*
- * Compute R = +/- X * S mod N, taking care not to leak S
- */
-static int ecjpake_mul_secret( mbedtls_mpi *R, int sign,
- const mbedtls_mpi *X,
- const mbedtls_mpi *S,
- const mbedtls_mpi *N,
- int (*f_rng)(void *, unsigned char *, size_t),
- void *p_rng )
-{
- int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- mbedtls_mpi b; /* Blinding value, then s + N * blinding */
-
- mbedtls_mpi_init( &b );
-
- /* b = s + rnd-128-bit * N */
- MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &b, 16, f_rng, p_rng ) );
- MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &b, &b, N ) );
- MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &b, &b, S ) );
-
- /* R = sign * X * b mod N */
- MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( R, X, &b ) );
- R->s *= sign;
- MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( R, R, N ) );
-
-cleanup:
- mbedtls_mpi_free( &b );
-
- return( ret );
-}
-
-/*
- * Generate and write the second round message (S: 7.4.2.5, C: 7.4.2.6)
- */
-int mbedtls_ecjpake_write_round_two( mbedtls_ecjpake_context *ctx,
- unsigned char *buf, size_t len, size_t *olen,
- int (*f_rng)(void *, unsigned char *, size_t),
- void *p_rng )
-{
- int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- mbedtls_ecp_point G; /* C: GA, S: GB */
- mbedtls_ecp_point Xm; /* C: Xc, S: Xs */
- mbedtls_mpi xm; /* C: xc, S: xs */
- unsigned char *p = buf;
- const unsigned char *end = buf + len;
- size_t ec_len;
-
- ECJPAKE_VALIDATE_RET( ctx != NULL );
- ECJPAKE_VALIDATE_RET( buf != NULL );
- ECJPAKE_VALIDATE_RET( olen != NULL );
- ECJPAKE_VALIDATE_RET( f_rng != NULL );
-
- mbedtls_ecp_point_init( &G );
- mbedtls_ecp_point_init( &Xm );
- mbedtls_mpi_init( &xm );
-
- /*
- * First generate private/public key pair (S: 7.4.2.5.1, C: 7.4.2.6.1)
- *
- * Client: GA = X1 + X3 + X4 | xs = x2 * s | Xc = xc * GA
- * Server: GB = X3 + X1 + X2 | xs = x4 * s | Xs = xs * GB
- * Unified: G = Xm1 + Xp1 + Xp2 | xm = xm2 * s | Xm = xm * G
- */
- MBEDTLS_MPI_CHK( ecjpake_ecp_add3( &ctx->grp, &G,
- &ctx->Xp1, &ctx->Xp2, &ctx->Xm1 ) );
- MBEDTLS_MPI_CHK( ecjpake_mul_secret( &xm, 1, &ctx->xm2, &ctx->s,
- &ctx->grp.N, f_rng, p_rng ) );
- MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &ctx->grp, &Xm, &xm, &G, f_rng, p_rng ) );
-
- /*
- * Now write things out
- *
- * struct {
- * ECParameters curve_params; // only server writing its message
- * ECJPAKEKeyKP ecjpake_key_kp;
- * } Client/ServerECJPAKEParams;
- */
- if( ctx->role == MBEDTLS_ECJPAKE_SERVER )
- {
- if( end < p )
- {
- ret = MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL;
- goto cleanup;
- }
- MBEDTLS_MPI_CHK( mbedtls_ecp_tls_write_group( &ctx->grp, &ec_len,
- p, end - p ) );
- p += ec_len;
- }
-
- if( end < p )
- {
- ret = MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL;
- goto cleanup;
- }
- MBEDTLS_MPI_CHK( mbedtls_ecp_tls_write_point( &ctx->grp, &Xm,
- ctx->point_format, &ec_len, p, end - p ) );
- p += ec_len;
-
- MBEDTLS_MPI_CHK( ecjpake_zkp_write( ctx->md_info, &ctx->grp,
- ctx->point_format,
- &G, &xm, &Xm, ID_MINE,
- &p, end, f_rng, p_rng ) );
-
- *olen = p - buf;
-
-cleanup:
- mbedtls_ecp_point_free( &G );
- mbedtls_ecp_point_free( &Xm );
- mbedtls_mpi_free( &xm );
-
- return( ret );
-}
-
-/*
- * Derive PMS (7.4.2.7 / 7.4.2.8)
- */
-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 )
-{
- int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- mbedtls_ecp_point K;
- mbedtls_mpi m_xm2_s, one;
- unsigned char kx[MBEDTLS_ECP_MAX_BYTES];
- size_t x_bytes;
-
- ECJPAKE_VALIDATE_RET( ctx != NULL );
- ECJPAKE_VALIDATE_RET( buf != NULL );
- ECJPAKE_VALIDATE_RET( olen != NULL );
- ECJPAKE_VALIDATE_RET( f_rng != NULL );
-
- *olen = mbedtls_md_get_size( ctx->md_info );
- if( len < *olen )
- return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
-
- mbedtls_ecp_point_init( &K );
- mbedtls_mpi_init( &m_xm2_s );
- mbedtls_mpi_init( &one );
-
- MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &one, 1 ) );
-
- /*
- * Client: K = ( Xs - X4 * x2 * s ) * x2
- * Server: K = ( Xc - X2 * x4 * s ) * x4
- * Unified: K = ( Xp - Xp2 * xm2 * s ) * xm2
- */
- MBEDTLS_MPI_CHK( ecjpake_mul_secret( &m_xm2_s, -1, &ctx->xm2, &ctx->s,
- &ctx->grp.N, f_rng, p_rng ) );
- MBEDTLS_MPI_CHK( mbedtls_ecp_muladd( &ctx->grp, &K,
- &one, &ctx->Xp,
- &m_xm2_s, &ctx->Xp2 ) );
- MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &ctx->grp, &K, &ctx->xm2, &K,
- f_rng, p_rng ) );
-
- /* PMS = SHA-256( K.X ) */
- x_bytes = ( ctx->grp.pbits + 7 ) / 8;
- MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &K.X, kx, x_bytes ) );
- MBEDTLS_MPI_CHK( mbedtls_md( ctx->md_info, kx, x_bytes, buf ) );
-
-cleanup:
- mbedtls_ecp_point_free( &K );
- mbedtls_mpi_free( &m_xm2_s );
- mbedtls_mpi_free( &one );
-
- return( ret );
-}
-
-#undef ID_MINE
-#undef ID_PEER
-
-#endif /* ! MBEDTLS_ECJPAKE_ALT */
-
-#if defined(MBEDTLS_SELF_TEST)
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf printf
-#endif
-
-#if !defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || \
- !defined(MBEDTLS_SHA256_C)
-int mbedtls_ecjpake_self_test( int verbose )
-{
- (void) verbose;
- return( 0 );
-}
-#else
-
-static const unsigned char ecjpake_test_password[] = {
- 0x74, 0x68, 0x72, 0x65, 0x61, 0x64, 0x6a, 0x70, 0x61, 0x6b, 0x65, 0x74,
- 0x65, 0x73, 0x74
-};
-
-#if !defined(MBEDTLS_ECJPAKE_ALT)
-
-static const unsigned char ecjpake_test_x1[] = {
- 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c,
- 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
- 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x21
-};
-
-static const unsigned char ecjpake_test_x2[] = {
- 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c,
- 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
- 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x81
-};
-
-static const unsigned char ecjpake_test_x3[] = {
- 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c,
- 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
- 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x81
-};
-
-static const unsigned char ecjpake_test_x4[] = {
- 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc,
- 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8,
- 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xe1
-};
-
-static const unsigned char ecjpake_test_cli_one[] = {
- 0x41, 0x04, 0xac, 0xcf, 0x01, 0x06, 0xef, 0x85, 0x8f, 0xa2, 0xd9, 0x19,
- 0x33, 0x13, 0x46, 0x80, 0x5a, 0x78, 0xb5, 0x8b, 0xba, 0xd0, 0xb8, 0x44,
- 0xe5, 0xc7, 0x89, 0x28, 0x79, 0x14, 0x61, 0x87, 0xdd, 0x26, 0x66, 0xad,
- 0xa7, 0x81, 0xbb, 0x7f, 0x11, 0x13, 0x72, 0x25, 0x1a, 0x89, 0x10, 0x62,
- 0x1f, 0x63, 0x4d, 0xf1, 0x28, 0xac, 0x48, 0xe3, 0x81, 0xfd, 0x6e, 0xf9,
- 0x06, 0x07, 0x31, 0xf6, 0x94, 0xa4, 0x41, 0x04, 0x1d, 0xd0, 0xbd, 0x5d,
- 0x45, 0x66, 0xc9, 0xbe, 0xd9, 0xce, 0x7d, 0xe7, 0x01, 0xb5, 0xe8, 0x2e,
- 0x08, 0xe8, 0x4b, 0x73, 0x04, 0x66, 0x01, 0x8a, 0xb9, 0x03, 0xc7, 0x9e,
- 0xb9, 0x82, 0x17, 0x22, 0x36, 0xc0, 0xc1, 0x72, 0x8a, 0xe4, 0xbf, 0x73,
- 0x61, 0x0d, 0x34, 0xde, 0x44, 0x24, 0x6e, 0xf3, 0xd9, 0xc0, 0x5a, 0x22,
- 0x36, 0xfb, 0x66, 0xa6, 0x58, 0x3d, 0x74, 0x49, 0x30, 0x8b, 0xab, 0xce,
- 0x20, 0x72, 0xfe, 0x16, 0x66, 0x29, 0x92, 0xe9, 0x23, 0x5c, 0x25, 0x00,
- 0x2f, 0x11, 0xb1, 0x50, 0x87, 0xb8, 0x27, 0x38, 0xe0, 0x3c, 0x94, 0x5b,
- 0xf7, 0xa2, 0x99, 0x5d, 0xda, 0x1e, 0x98, 0x34, 0x58, 0x41, 0x04, 0x7e,
- 0xa6, 0xe3, 0xa4, 0x48, 0x70, 0x37, 0xa9, 0xe0, 0xdb, 0xd7, 0x92, 0x62,
- 0xb2, 0xcc, 0x27, 0x3e, 0x77, 0x99, 0x30, 0xfc, 0x18, 0x40, 0x9a, 0xc5,
- 0x36, 0x1c, 0x5f, 0xe6, 0x69, 0xd7, 0x02, 0xe1, 0x47, 0x79, 0x0a, 0xeb,
- 0x4c, 0xe7, 0xfd, 0x65, 0x75, 0xab, 0x0f, 0x6c, 0x7f, 0xd1, 0xc3, 0x35,
- 0x93, 0x9a, 0xa8, 0x63, 0xba, 0x37, 0xec, 0x91, 0xb7, 0xe3, 0x2b, 0xb0,
- 0x13, 0xbb, 0x2b, 0x41, 0x04, 0xa4, 0x95, 0x58, 0xd3, 0x2e, 0xd1, 0xeb,
- 0xfc, 0x18, 0x16, 0xaf, 0x4f, 0xf0, 0x9b, 0x55, 0xfc, 0xb4, 0xca, 0x47,
- 0xb2, 0xa0, 0x2d, 0x1e, 0x7c, 0xaf, 0x11, 0x79, 0xea, 0x3f, 0xe1, 0x39,
- 0x5b, 0x22, 0xb8, 0x61, 0x96, 0x40, 0x16, 0xfa, 0xba, 0xf7, 0x2c, 0x97,
- 0x56, 0x95, 0xd9, 0x3d, 0x4d, 0xf0, 0xe5, 0x19, 0x7f, 0xe9, 0xf0, 0x40,
- 0x63, 0x4e, 0xd5, 0x97, 0x64, 0x93, 0x77, 0x87, 0xbe, 0x20, 0xbc, 0x4d,
- 0xee, 0xbb, 0xf9, 0xb8, 0xd6, 0x0a, 0x33, 0x5f, 0x04, 0x6c, 0xa3, 0xaa,
- 0x94, 0x1e, 0x45, 0x86, 0x4c, 0x7c, 0xad, 0xef, 0x9c, 0xf7, 0x5b, 0x3d,
- 0x8b, 0x01, 0x0e, 0x44, 0x3e, 0xf0
-};
-
-static const unsigned char ecjpake_test_srv_one[] = {
- 0x41, 0x04, 0x7e, 0xa6, 0xe3, 0xa4, 0x48, 0x70, 0x37, 0xa9, 0xe0, 0xdb,
- 0xd7, 0x92, 0x62, 0xb2, 0xcc, 0x27, 0x3e, 0x77, 0x99, 0x30, 0xfc, 0x18,
- 0x40, 0x9a, 0xc5, 0x36, 0x1c, 0x5f, 0xe6, 0x69, 0xd7, 0x02, 0xe1, 0x47,
- 0x79, 0x0a, 0xeb, 0x4c, 0xe7, 0xfd, 0x65, 0x75, 0xab, 0x0f, 0x6c, 0x7f,
- 0xd1, 0xc3, 0x35, 0x93, 0x9a, 0xa8, 0x63, 0xba, 0x37, 0xec, 0x91, 0xb7,
- 0xe3, 0x2b, 0xb0, 0x13, 0xbb, 0x2b, 0x41, 0x04, 0x09, 0xf8, 0x5b, 0x3d,
- 0x20, 0xeb, 0xd7, 0x88, 0x5c, 0xe4, 0x64, 0xc0, 0x8d, 0x05, 0x6d, 0x64,
- 0x28, 0xfe, 0x4d, 0xd9, 0x28, 0x7a, 0xa3, 0x65, 0xf1, 0x31, 0xf4, 0x36,
- 0x0f, 0xf3, 0x86, 0xd8, 0x46, 0x89, 0x8b, 0xc4, 0xb4, 0x15, 0x83, 0xc2,
- 0xa5, 0x19, 0x7f, 0x65, 0xd7, 0x87, 0x42, 0x74, 0x6c, 0x12, 0xa5, 0xec,
- 0x0a, 0x4f, 0xfe, 0x2f, 0x27, 0x0a, 0x75, 0x0a, 0x1d, 0x8f, 0xb5, 0x16,
- 0x20, 0x93, 0x4d, 0x74, 0xeb, 0x43, 0xe5, 0x4d, 0xf4, 0x24, 0xfd, 0x96,
- 0x30, 0x6c, 0x01, 0x17, 0xbf, 0x13, 0x1a, 0xfa, 0xbf, 0x90, 0xa9, 0xd3,
- 0x3d, 0x11, 0x98, 0xd9, 0x05, 0x19, 0x37, 0x35, 0x14, 0x41, 0x04, 0x19,
- 0x0a, 0x07, 0x70, 0x0f, 0xfa, 0x4b, 0xe6, 0xae, 0x1d, 0x79, 0xee, 0x0f,
- 0x06, 0xae, 0xb5, 0x44, 0xcd, 0x5a, 0xdd, 0xaa, 0xbe, 0xdf, 0x70, 0xf8,
- 0x62, 0x33, 0x21, 0x33, 0x2c, 0x54, 0xf3, 0x55, 0xf0, 0xfb, 0xfe, 0xc7,
- 0x83, 0xed, 0x35, 0x9e, 0x5d, 0x0b, 0xf7, 0x37, 0x7a, 0x0f, 0xc4, 0xea,
- 0x7a, 0xce, 0x47, 0x3c, 0x9c, 0x11, 0x2b, 0x41, 0xcc, 0xd4, 0x1a, 0xc5,
- 0x6a, 0x56, 0x12, 0x41, 0x04, 0x36, 0x0a, 0x1c, 0xea, 0x33, 0xfc, 0xe6,
- 0x41, 0x15, 0x64, 0x58, 0xe0, 0xa4, 0xea, 0xc2, 0x19, 0xe9, 0x68, 0x31,
- 0xe6, 0xae, 0xbc, 0x88, 0xb3, 0xf3, 0x75, 0x2f, 0x93, 0xa0, 0x28, 0x1d,
- 0x1b, 0xf1, 0xfb, 0x10, 0x60, 0x51, 0xdb, 0x96, 0x94, 0xa8, 0xd6, 0xe8,
- 0x62, 0xa5, 0xef, 0x13, 0x24, 0xa3, 0xd9, 0xe2, 0x78, 0x94, 0xf1, 0xee,
- 0x4f, 0x7c, 0x59, 0x19, 0x99, 0x65, 0xa8, 0xdd, 0x4a, 0x20, 0x91, 0x84,
- 0x7d, 0x2d, 0x22, 0xdf, 0x3e, 0xe5, 0x5f, 0xaa, 0x2a, 0x3f, 0xb3, 0x3f,
- 0xd2, 0xd1, 0xe0, 0x55, 0xa0, 0x7a, 0x7c, 0x61, 0xec, 0xfb, 0x8d, 0x80,
- 0xec, 0x00, 0xc2, 0xc9, 0xeb, 0x12
-};
-
-static const unsigned char ecjpake_test_srv_two[] = {
- 0x03, 0x00, 0x17, 0x41, 0x04, 0x0f, 0xb2, 0x2b, 0x1d, 0x5d, 0x11, 0x23,
- 0xe0, 0xef, 0x9f, 0xeb, 0x9d, 0x8a, 0x2e, 0x59, 0x0a, 0x1f, 0x4d, 0x7c,
- 0xed, 0x2c, 0x2b, 0x06, 0x58, 0x6e, 0x8f, 0x2a, 0x16, 0xd4, 0xeb, 0x2f,
- 0xda, 0x43, 0x28, 0xa2, 0x0b, 0x07, 0xd8, 0xfd, 0x66, 0x76, 0x54, 0xca,
- 0x18, 0xc5, 0x4e, 0x32, 0xa3, 0x33, 0xa0, 0x84, 0x54, 0x51, 0xe9, 0x26,
- 0xee, 0x88, 0x04, 0xfd, 0x7a, 0xf0, 0xaa, 0xa7, 0xa6, 0x41, 0x04, 0x55,
- 0x16, 0xea, 0x3e, 0x54, 0xa0, 0xd5, 0xd8, 0xb2, 0xce, 0x78, 0x6b, 0x38,
- 0xd3, 0x83, 0x37, 0x00, 0x29, 0xa5, 0xdb, 0xe4, 0x45, 0x9c, 0x9d, 0xd6,
- 0x01, 0xb4, 0x08, 0xa2, 0x4a, 0xe6, 0x46, 0x5c, 0x8a, 0xc9, 0x05, 0xb9,
- 0xeb, 0x03, 0xb5, 0xd3, 0x69, 0x1c, 0x13, 0x9e, 0xf8, 0x3f, 0x1c, 0xd4,
- 0x20, 0x0f, 0x6c, 0x9c, 0xd4, 0xec, 0x39, 0x22, 0x18, 0xa5, 0x9e, 0xd2,
- 0x43, 0xd3, 0xc8, 0x20, 0xff, 0x72, 0x4a, 0x9a, 0x70, 0xb8, 0x8c, 0xb8,
- 0x6f, 0x20, 0xb4, 0x34, 0xc6, 0x86, 0x5a, 0xa1, 0xcd, 0x79, 0x06, 0xdd,
- 0x7c, 0x9b, 0xce, 0x35, 0x25, 0xf5, 0x08, 0x27, 0x6f, 0x26, 0x83, 0x6c
-};
-
-static const unsigned char ecjpake_test_cli_two[] = {
- 0x41, 0x04, 0x69, 0xd5, 0x4e, 0xe8, 0x5e, 0x90, 0xce, 0x3f, 0x12, 0x46,
- 0x74, 0x2d, 0xe5, 0x07, 0xe9, 0x39, 0xe8, 0x1d, 0x1d, 0xc1, 0xc5, 0xcb,
- 0x98, 0x8b, 0x58, 0xc3, 0x10, 0xc9, 0xfd, 0xd9, 0x52, 0x4d, 0x93, 0x72,
- 0x0b, 0x45, 0x54, 0x1c, 0x83, 0xee, 0x88, 0x41, 0x19, 0x1d, 0xa7, 0xce,
- 0xd8, 0x6e, 0x33, 0x12, 0xd4, 0x36, 0x23, 0xc1, 0xd6, 0x3e, 0x74, 0x98,
- 0x9a, 0xba, 0x4a, 0xff, 0xd1, 0xee, 0x41, 0x04, 0x07, 0x7e, 0x8c, 0x31,
- 0xe2, 0x0e, 0x6b, 0xed, 0xb7, 0x60, 0xc1, 0x35, 0x93, 0xe6, 0x9f, 0x15,
- 0xbe, 0x85, 0xc2, 0x7d, 0x68, 0xcd, 0x09, 0xcc, 0xb8, 0xc4, 0x18, 0x36,
- 0x08, 0x91, 0x7c, 0x5c, 0x3d, 0x40, 0x9f, 0xac, 0x39, 0xfe, 0xfe, 0xe8,
- 0x2f, 0x72, 0x92, 0xd3, 0x6f, 0x0d, 0x23, 0xe0, 0x55, 0x91, 0x3f, 0x45,
- 0xa5, 0x2b, 0x85, 0xdd, 0x8a, 0x20, 0x52, 0xe9, 0xe1, 0x29, 0xbb, 0x4d,
- 0x20, 0x0f, 0x01, 0x1f, 0x19, 0x48, 0x35, 0x35, 0xa6, 0xe8, 0x9a, 0x58,
- 0x0c, 0x9b, 0x00, 0x03, 0xba, 0xf2, 0x14, 0x62, 0xec, 0xe9, 0x1a, 0x82,
- 0xcc, 0x38, 0xdb, 0xdc, 0xae, 0x60, 0xd9, 0xc5, 0x4c
-};
-
-static const unsigned char ecjpake_test_pms[] = {
- 0xf3, 0xd4, 0x7f, 0x59, 0x98, 0x44, 0xdb, 0x92, 0xa5, 0x69, 0xbb, 0xe7,
- 0x98, 0x1e, 0x39, 0xd9, 0x31, 0xfd, 0x74, 0x3b, 0xf2, 0x2e, 0x98, 0xf9,
- 0xb4, 0x38, 0xf7, 0x19, 0xd3, 0xc4, 0xf3, 0x51
-};
-
-/* Load my private keys and generate the corresponding public keys */
-static int ecjpake_test_load( mbedtls_ecjpake_context *ctx,
- const unsigned char *xm1, size_t len1,
- const unsigned char *xm2, size_t len2 )
-{
- int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-
- MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->xm1, xm1, len1 ) );
- MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->xm2, xm2, len2 ) );
- MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &ctx->grp, &ctx->Xm1, &ctx->xm1,
- &ctx->grp.G, NULL, NULL ) );
- MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &ctx->grp, &ctx->Xm2, &ctx->xm2,
- &ctx->grp.G, NULL, NULL ) );
-
-cleanup:
- return( ret );
-}
-
-#endif /* ! MBEDTLS_ECJPAKE_ALT */
-
-/* For tests we don't need a secure RNG;
- * use the LGC from Numerical Recipes for simplicity */
-static int ecjpake_lgc( void *p, unsigned char *out, size_t len )
-{
- static uint32_t x = 42;
- (void) p;
-
- while( len > 0 )
- {
- size_t use_len = len > 4 ? 4 : len;
- x = 1664525 * x + 1013904223;
- memcpy( out, &x, use_len );
- out += use_len;
- len -= use_len;
- }
-
- return( 0 );
-}
-
-#define TEST_ASSERT( x ) \
- do { \
- if( x ) \
- ret = 0; \
- else \
- { \
- ret = 1; \
- goto cleanup; \
- } \
- } while( 0 )
-
-/*
- * Checkup routine
- */
-int mbedtls_ecjpake_self_test( int verbose )
-{
- int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- mbedtls_ecjpake_context cli;
- mbedtls_ecjpake_context srv;
- unsigned char buf[512], pms[32];
- size_t len, pmslen;
-
- mbedtls_ecjpake_init( &cli );
- mbedtls_ecjpake_init( &srv );
-
- if( verbose != 0 )
- mbedtls_printf( " ECJPAKE test #0 (setup): " );
-
- TEST_ASSERT( mbedtls_ecjpake_setup( &cli, MBEDTLS_ECJPAKE_CLIENT,
- MBEDTLS_MD_SHA256, MBEDTLS_ECP_DP_SECP256R1,
- ecjpake_test_password,
- sizeof( ecjpake_test_password ) ) == 0 );
-
- TEST_ASSERT( mbedtls_ecjpake_setup( &srv, MBEDTLS_ECJPAKE_SERVER,
- MBEDTLS_MD_SHA256, MBEDTLS_ECP_DP_SECP256R1,
- ecjpake_test_password,
- sizeof( ecjpake_test_password ) ) == 0 );
-
- if( verbose != 0 )
- mbedtls_printf( "passed\n" );
-
- if( verbose != 0 )
- mbedtls_printf( " ECJPAKE test #1 (random handshake): " );
-
- TEST_ASSERT( mbedtls_ecjpake_write_round_one( &cli,
- buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 );
-
- TEST_ASSERT( mbedtls_ecjpake_read_round_one( &srv, buf, len ) == 0 );
-
- TEST_ASSERT( mbedtls_ecjpake_write_round_one( &srv,
- buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 );
-
- TEST_ASSERT( mbedtls_ecjpake_read_round_one( &cli, buf, len ) == 0 );
-
- TEST_ASSERT( mbedtls_ecjpake_write_round_two( &srv,
- buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 );
-
- TEST_ASSERT( mbedtls_ecjpake_read_round_two( &cli, buf, len ) == 0 );
-
- TEST_ASSERT( mbedtls_ecjpake_derive_secret( &cli,
- pms, sizeof( pms ), &pmslen, ecjpake_lgc, NULL ) == 0 );
-
- TEST_ASSERT( mbedtls_ecjpake_write_round_two( &cli,
- buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 );
-
- TEST_ASSERT( mbedtls_ecjpake_read_round_two( &srv, buf, len ) == 0 );
-
- TEST_ASSERT( mbedtls_ecjpake_derive_secret( &srv,
- buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 );
-
- TEST_ASSERT( len == pmslen );
- TEST_ASSERT( memcmp( buf, pms, len ) == 0 );
-
- if( verbose != 0 )
- mbedtls_printf( "passed\n" );
-
-#if !defined(MBEDTLS_ECJPAKE_ALT)
- /* 'reference handshake' tests can only be run against implementations
- * for which we have 100% control over how the random ephemeral keys
- * are generated. This is only the case for the internal mbed TLS
- * implementation, so these tests are skipped in case the internal
- * implementation is swapped out for an alternative one. */
- if( verbose != 0 )
- mbedtls_printf( " ECJPAKE test #2 (reference handshake): " );
-
- /* Simulate generation of round one */
- MBEDTLS_MPI_CHK( ecjpake_test_load( &cli,
- ecjpake_test_x1, sizeof( ecjpake_test_x1 ),
- ecjpake_test_x2, sizeof( ecjpake_test_x2 ) ) );
-
- MBEDTLS_MPI_CHK( ecjpake_test_load( &srv,
- ecjpake_test_x3, sizeof( ecjpake_test_x3 ),
- ecjpake_test_x4, sizeof( ecjpake_test_x4 ) ) );
-
- /* Read round one */
- TEST_ASSERT( mbedtls_ecjpake_read_round_one( &srv,
- ecjpake_test_cli_one,
- sizeof( ecjpake_test_cli_one ) ) == 0 );
-
- TEST_ASSERT( mbedtls_ecjpake_read_round_one( &cli,
- ecjpake_test_srv_one,
- sizeof( ecjpake_test_srv_one ) ) == 0 );
-
- /* Skip generation of round two, read round two */
- TEST_ASSERT( mbedtls_ecjpake_read_round_two( &cli,
- ecjpake_test_srv_two,
- sizeof( ecjpake_test_srv_two ) ) == 0 );
-
- TEST_ASSERT( mbedtls_ecjpake_read_round_two( &srv,
- ecjpake_test_cli_two,
- sizeof( ecjpake_test_cli_two ) ) == 0 );
-
- /* Server derives PMS */
- TEST_ASSERT( mbedtls_ecjpake_derive_secret( &srv,
- buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 );
-
- TEST_ASSERT( len == sizeof( ecjpake_test_pms ) );
- TEST_ASSERT( memcmp( buf, ecjpake_test_pms, len ) == 0 );
-
- memset( buf, 0, len ); /* Avoid interferences with next step */
-
- /* Client derives PMS */
- TEST_ASSERT( mbedtls_ecjpake_derive_secret( &cli,
- buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 );
-
- TEST_ASSERT( len == sizeof( ecjpake_test_pms ) );
- TEST_ASSERT( memcmp( buf, ecjpake_test_pms, len ) == 0 );
-
- if( verbose != 0 )
- mbedtls_printf( "passed\n" );
-#endif /* ! MBEDTLS_ECJPAKE_ALT */
-
-cleanup:
- mbedtls_ecjpake_free( &cli );
- mbedtls_ecjpake_free( &srv );
-
- if( ret != 0 )
- {
- if( verbose != 0 )
- mbedtls_printf( "failed\n" );
-
- ret = 1;
- }
-
- if( verbose != 0 )
- mbedtls_printf( "\n" );
-
- return( ret );
-}
-
-#undef TEST_ASSERT
-
-#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED && MBEDTLS_SHA256_C */
-
-#endif /* MBEDTLS_SELF_TEST */
-
-#endif /* MBEDTLS_ECJPAKE_C */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 09:10:44 +0000