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- #if !defined(MBEDTLS_CONFIG_FILE)
- #include "mbedtls/config.h"
- #else
- #include MBEDTLS_CONFIG_FILE
- #endif
- #if defined(MBEDTLS_PK_C)
- #include "mbedtls/pk_internal.h"
- #include "mbedtls/rsa.h"
- #include <string.h>
- #if defined(MBEDTLS_ECP_C)
- #include "mbedtls/ecp.h"
- #endif
- #if defined(MBEDTLS_ECDSA_C)
- #include "mbedtls/ecdsa.h"
- #endif
- #if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
- #include "mbedtls/platform_util.h"
- #endif
- #if defined(MBEDTLS_PLATFORM_C)
- #include "mbedtls/platform.h"
- #else
- #include <stdlib.h>
- #define mbedtls_calloc calloc
- #define mbedtls_free free
- #endif
- #include <limits.h>
- #include <stdint.h>
- #if defined(MBEDTLS_RSA_C)
- static int rsa_can_do( mbedtls_pk_type_t type )
- {
- return( type == MBEDTLS_PK_RSA ||
- type == MBEDTLS_PK_RSASSA_PSS );
- }
- static size_t rsa_get_bitlen( const void *ctx )
- {
- const mbedtls_rsa_context * rsa = (const mbedtls_rsa_context *) ctx;
- return( 8 * mbedtls_rsa_get_len( rsa ) );
- }
- static int rsa_verify_wrap( void *ctx, mbedtls_md_type_t md_alg,
- const unsigned char *hash, size_t hash_len,
- const unsigned char *sig, size_t sig_len )
- {
- int ret;
- mbedtls_rsa_context * rsa = (mbedtls_rsa_context *) ctx;
- size_t rsa_len = mbedtls_rsa_get_len( rsa );
- #if SIZE_MAX > UINT_MAX
- if( md_alg == MBEDTLS_MD_NONE && UINT_MAX < hash_len )
- return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
- #endif
- if( sig_len < rsa_len )
- return( MBEDTLS_ERR_RSA_VERIFY_FAILED );
- if( ( ret = mbedtls_rsa_pkcs1_verify( rsa, NULL, NULL,
- MBEDTLS_RSA_PUBLIC, md_alg,
- (unsigned int) hash_len, hash, sig ) ) != 0 )
- return( ret );
-
- if( sig_len > rsa_len )
- return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH );
- return( 0 );
- }
- static int rsa_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
- const unsigned char *hash, size_t hash_len,
- unsigned char *sig, size_t *sig_len,
- int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
- {
- mbedtls_rsa_context * rsa = (mbedtls_rsa_context *) ctx;
- #if SIZE_MAX > UINT_MAX
- if( md_alg == MBEDTLS_MD_NONE && UINT_MAX < hash_len )
- return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
- #endif
- *sig_len = mbedtls_rsa_get_len( rsa );
- return( mbedtls_rsa_pkcs1_sign( rsa, f_rng, p_rng, MBEDTLS_RSA_PRIVATE,
- md_alg, (unsigned int) hash_len, hash, sig ) );
- }
- static int rsa_decrypt_wrap( void *ctx,
- const unsigned char *input, size_t ilen,
- unsigned char *output, size_t *olen, size_t osize,
- int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
- {
- mbedtls_rsa_context * rsa = (mbedtls_rsa_context *) ctx;
- if( ilen != mbedtls_rsa_get_len( rsa ) )
- return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
- return( mbedtls_rsa_pkcs1_decrypt( rsa, f_rng, p_rng,
- MBEDTLS_RSA_PRIVATE, olen, input, output, osize ) );
- }
- static int rsa_encrypt_wrap( void *ctx,
- const unsigned char *input, size_t ilen,
- unsigned char *output, size_t *olen, size_t osize,
- int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
- {
- mbedtls_rsa_context * rsa = (mbedtls_rsa_context *) ctx;
- *olen = mbedtls_rsa_get_len( rsa );
- if( *olen > osize )
- return( MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE );
- return( mbedtls_rsa_pkcs1_encrypt( rsa, f_rng, p_rng, MBEDTLS_RSA_PUBLIC,
- ilen, input, output ) );
- }
- static int rsa_check_pair_wrap( const void *pub, const void *prv )
- {
- return( mbedtls_rsa_check_pub_priv( (const mbedtls_rsa_context *) pub,
- (const mbedtls_rsa_context *) prv ) );
- }
- static void *rsa_alloc_wrap( void )
- {
- void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_rsa_context ) );
- if( ctx != NULL )
- mbedtls_rsa_init( (mbedtls_rsa_context *) ctx, 0, 0 );
- return( ctx );
- }
- static void rsa_free_wrap( void *ctx )
- {
- mbedtls_rsa_free( (mbedtls_rsa_context *) ctx );
- mbedtls_free( ctx );
- }
- static void rsa_debug( const void *ctx, mbedtls_pk_debug_item *items )
- {
- items->type = MBEDTLS_PK_DEBUG_MPI;
- items->name = "rsa.N";
- items->value = &( ((mbedtls_rsa_context *) ctx)->N );
- items++;
- items->type = MBEDTLS_PK_DEBUG_MPI;
- items->name = "rsa.E";
- items->value = &( ((mbedtls_rsa_context *) ctx)->E );
- }
- const mbedtls_pk_info_t mbedtls_rsa_info = {
- MBEDTLS_PK_RSA,
- "RSA",
- rsa_get_bitlen,
- rsa_can_do,
- rsa_verify_wrap,
- rsa_sign_wrap,
- #if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
- NULL,
- NULL,
- #endif
- rsa_decrypt_wrap,
- rsa_encrypt_wrap,
- rsa_check_pair_wrap,
- rsa_alloc_wrap,
- rsa_free_wrap,
- #if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
- NULL,
- NULL,
- #endif
- rsa_debug,
- };
- #endif
- #if defined(MBEDTLS_ECP_C)
- static int eckey_can_do( mbedtls_pk_type_t type )
- {
- return( type == MBEDTLS_PK_ECKEY ||
- type == MBEDTLS_PK_ECKEY_DH ||
- type == MBEDTLS_PK_ECDSA );
- }
- static size_t eckey_get_bitlen( const void *ctx )
- {
- return( ((mbedtls_ecp_keypair *) ctx)->grp.pbits );
- }
- #if defined(MBEDTLS_ECDSA_C)
- static int ecdsa_verify_wrap( void *ctx, mbedtls_md_type_t md_alg,
- const unsigned char *hash, size_t hash_len,
- const unsigned char *sig, size_t sig_len );
- static int ecdsa_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
- const unsigned char *hash, size_t hash_len,
- unsigned char *sig, size_t *sig_len,
- int (*f_rng)(void *, unsigned char *, size_t), void *p_rng );
- static int eckey_verify_wrap( void *ctx, mbedtls_md_type_t md_alg,
- const unsigned char *hash, size_t hash_len,
- const unsigned char *sig, size_t sig_len )
- {
- int ret;
- mbedtls_ecdsa_context ecdsa;
- mbedtls_ecdsa_init( &ecdsa );
- if( ( ret = mbedtls_ecdsa_from_keypair( &ecdsa, ctx ) ) == 0 )
- ret = ecdsa_verify_wrap( &ecdsa, md_alg, hash, hash_len, sig, sig_len );
- mbedtls_ecdsa_free( &ecdsa );
- return( ret );
- }
- static int eckey_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
- const unsigned char *hash, size_t hash_len,
- unsigned char *sig, size_t *sig_len,
- int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
- {
- int ret;
- mbedtls_ecdsa_context ecdsa;
- mbedtls_ecdsa_init( &ecdsa );
- if( ( ret = mbedtls_ecdsa_from_keypair( &ecdsa, ctx ) ) == 0 )
- ret = ecdsa_sign_wrap( &ecdsa, md_alg, hash, hash_len, sig, sig_len,
- f_rng, p_rng );
- mbedtls_ecdsa_free( &ecdsa );
- return( ret );
- }
- #if defined(MBEDTLS_ECP_RESTARTABLE)
- static int ecdsa_verify_rs_wrap( void *ctx, mbedtls_md_type_t md_alg,
- const unsigned char *hash, size_t hash_len,
- const unsigned char *sig, size_t sig_len,
- void *rs_ctx );
- static int ecdsa_sign_rs_wrap( void *ctx, mbedtls_md_type_t md_alg,
- const unsigned char *hash, size_t hash_len,
- unsigned char *sig, size_t *sig_len,
- int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
- void *rs_ctx );
- typedef struct
- {
- mbedtls_ecdsa_restart_ctx ecdsa_rs;
- mbedtls_ecdsa_context ecdsa_ctx;
- } eckey_restart_ctx;
- static void *eckey_rs_alloc( void )
- {
- eckey_restart_ctx *rs_ctx;
- void *ctx = mbedtls_calloc( 1, sizeof( eckey_restart_ctx ) );
- if( ctx != NULL )
- {
- rs_ctx = ctx;
- mbedtls_ecdsa_restart_init( &rs_ctx->ecdsa_rs );
- mbedtls_ecdsa_init( &rs_ctx->ecdsa_ctx );
- }
- return( ctx );
- }
- static void eckey_rs_free( void *ctx )
- {
- eckey_restart_ctx *rs_ctx;
- if( ctx == NULL)
- return;
- rs_ctx = ctx;
- mbedtls_ecdsa_restart_free( &rs_ctx->ecdsa_rs );
- mbedtls_ecdsa_free( &rs_ctx->ecdsa_ctx );
- mbedtls_free( ctx );
- }
- static int eckey_verify_rs_wrap( void *ctx, mbedtls_md_type_t md_alg,
- const unsigned char *hash, size_t hash_len,
- const unsigned char *sig, size_t sig_len,
- void *rs_ctx )
- {
- int ret;
- eckey_restart_ctx *rs = rs_ctx;
-
- if( rs == NULL )
- return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
-
- if( rs->ecdsa_ctx.grp.pbits == 0 )
- MBEDTLS_MPI_CHK( mbedtls_ecdsa_from_keypair( &rs->ecdsa_ctx, ctx ) );
- MBEDTLS_MPI_CHK( ecdsa_verify_rs_wrap( &rs->ecdsa_ctx,
- md_alg, hash, hash_len,
- sig, sig_len, &rs->ecdsa_rs ) );
- cleanup:
- return( ret );
- }
- static int eckey_sign_rs_wrap( void *ctx, mbedtls_md_type_t md_alg,
- const unsigned char *hash, size_t hash_len,
- unsigned char *sig, size_t *sig_len,
- int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
- void *rs_ctx )
- {
- int ret;
- eckey_restart_ctx *rs = rs_ctx;
-
- if( rs == NULL )
- return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
-
- if( rs->ecdsa_ctx.grp.pbits == 0 )
- MBEDTLS_MPI_CHK( mbedtls_ecdsa_from_keypair( &rs->ecdsa_ctx, ctx ) );
- MBEDTLS_MPI_CHK( ecdsa_sign_rs_wrap( &rs->ecdsa_ctx, md_alg,
- hash, hash_len, sig, sig_len,
- f_rng, p_rng, &rs->ecdsa_rs ) );
- cleanup:
- return( ret );
- }
- #endif
- #endif
- static int eckey_check_pair( const void *pub, const void *prv )
- {
- return( mbedtls_ecp_check_pub_priv( (const mbedtls_ecp_keypair *) pub,
- (const mbedtls_ecp_keypair *) prv ) );
- }
- static void *eckey_alloc_wrap( void )
- {
- void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_ecp_keypair ) );
- if( ctx != NULL )
- mbedtls_ecp_keypair_init( ctx );
- return( ctx );
- }
- static void eckey_free_wrap( void *ctx )
- {
- mbedtls_ecp_keypair_free( (mbedtls_ecp_keypair *) ctx );
- mbedtls_free( ctx );
- }
- static void eckey_debug( const void *ctx, mbedtls_pk_debug_item *items )
- {
- items->type = MBEDTLS_PK_DEBUG_ECP;
- items->name = "eckey.Q";
- items->value = &( ((mbedtls_ecp_keypair *) ctx)->Q );
- }
- const mbedtls_pk_info_t mbedtls_eckey_info = {
- MBEDTLS_PK_ECKEY,
- "EC",
- eckey_get_bitlen,
- eckey_can_do,
- #if defined(MBEDTLS_ECDSA_C)
- eckey_verify_wrap,
- eckey_sign_wrap,
- #if defined(MBEDTLS_ECP_RESTARTABLE)
- eckey_verify_rs_wrap,
- eckey_sign_rs_wrap,
- #endif
- #else
- NULL,
- NULL,
- #endif
- NULL,
- NULL,
- eckey_check_pair,
- eckey_alloc_wrap,
- eckey_free_wrap,
- #if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
- eckey_rs_alloc,
- eckey_rs_free,
- #endif
- eckey_debug,
- };
- static int eckeydh_can_do( mbedtls_pk_type_t type )
- {
- return( type == MBEDTLS_PK_ECKEY ||
- type == MBEDTLS_PK_ECKEY_DH );
- }
- const mbedtls_pk_info_t mbedtls_eckeydh_info = {
- MBEDTLS_PK_ECKEY_DH,
- "EC_DH",
- eckey_get_bitlen,
- eckeydh_can_do,
- NULL,
- NULL,
- #if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
- NULL,
- NULL,
- #endif
- NULL,
- NULL,
- eckey_check_pair,
- eckey_alloc_wrap,
- eckey_free_wrap,
- #if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
- NULL,
- NULL,
- #endif
- eckey_debug,
- };
- #endif
- #if defined(MBEDTLS_ECDSA_C)
- static int ecdsa_can_do( mbedtls_pk_type_t type )
- {
- return( type == MBEDTLS_PK_ECDSA );
- }
- static int ecdsa_verify_wrap( void *ctx, mbedtls_md_type_t md_alg,
- const unsigned char *hash, size_t hash_len,
- const unsigned char *sig, size_t sig_len )
- {
- int ret;
- ((void) md_alg);
- ret = mbedtls_ecdsa_read_signature( (mbedtls_ecdsa_context *) ctx,
- hash, hash_len, sig, sig_len );
- if( ret == MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH )
- return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH );
- return( ret );
- }
- static int ecdsa_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
- const unsigned char *hash, size_t hash_len,
- unsigned char *sig, size_t *sig_len,
- int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
- {
- return( mbedtls_ecdsa_write_signature( (mbedtls_ecdsa_context *) ctx,
- md_alg, hash, hash_len, sig, sig_len, f_rng, p_rng ) );
- }
- #if defined(MBEDTLS_ECP_RESTARTABLE)
- static int ecdsa_verify_rs_wrap( void *ctx, mbedtls_md_type_t md_alg,
- const unsigned char *hash, size_t hash_len,
- const unsigned char *sig, size_t sig_len,
- void *rs_ctx )
- {
- int ret;
- ((void) md_alg);
- ret = mbedtls_ecdsa_read_signature_restartable(
- (mbedtls_ecdsa_context *) ctx,
- hash, hash_len, sig, sig_len,
- (mbedtls_ecdsa_restart_ctx *) rs_ctx );
- if( ret == MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH )
- return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH );
- return( ret );
- }
- static int ecdsa_sign_rs_wrap( void *ctx, mbedtls_md_type_t md_alg,
- const unsigned char *hash, size_t hash_len,
- unsigned char *sig, size_t *sig_len,
- int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
- void *rs_ctx )
- {
- return( mbedtls_ecdsa_write_signature_restartable(
- (mbedtls_ecdsa_context *) ctx,
- md_alg, hash, hash_len, sig, sig_len, f_rng, p_rng,
- (mbedtls_ecdsa_restart_ctx *) rs_ctx ) );
- }
- #endif
- static void *ecdsa_alloc_wrap( void )
- {
- void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_ecdsa_context ) );
- if( ctx != NULL )
- mbedtls_ecdsa_init( (mbedtls_ecdsa_context *) ctx );
- return( ctx );
- }
- static void ecdsa_free_wrap( void *ctx )
- {
- mbedtls_ecdsa_free( (mbedtls_ecdsa_context *) ctx );
- mbedtls_free( ctx );
- }
- #if defined(MBEDTLS_ECP_RESTARTABLE)
- static void *ecdsa_rs_alloc( void )
- {
- void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_ecdsa_restart_ctx ) );
- if( ctx != NULL )
- mbedtls_ecdsa_restart_init( ctx );
- return( ctx );
- }
- static void ecdsa_rs_free( void *ctx )
- {
- mbedtls_ecdsa_restart_free( ctx );
- mbedtls_free( ctx );
- }
- #endif
- const mbedtls_pk_info_t mbedtls_ecdsa_info = {
- MBEDTLS_PK_ECDSA,
- "ECDSA",
- eckey_get_bitlen,
- ecdsa_can_do,
- ecdsa_verify_wrap,
- ecdsa_sign_wrap,
- #if defined(MBEDTLS_ECP_RESTARTABLE)
- ecdsa_verify_rs_wrap,
- ecdsa_sign_rs_wrap,
- #endif
- NULL,
- NULL,
- eckey_check_pair,
- ecdsa_alloc_wrap,
- ecdsa_free_wrap,
- #if defined(MBEDTLS_ECP_RESTARTABLE)
- ecdsa_rs_alloc,
- ecdsa_rs_free,
- #endif
- eckey_debug,
- };
- #endif
- #if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
- static int rsa_alt_can_do( mbedtls_pk_type_t type )
- {
- return( type == MBEDTLS_PK_RSA );
- }
- static size_t rsa_alt_get_bitlen( const void *ctx )
- {
- const mbedtls_rsa_alt_context *rsa_alt = (const mbedtls_rsa_alt_context *) ctx;
- return( 8 * rsa_alt->key_len_func( rsa_alt->key ) );
- }
- static int rsa_alt_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
- const unsigned char *hash, size_t hash_len,
- unsigned char *sig, size_t *sig_len,
- int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
- {
- mbedtls_rsa_alt_context *rsa_alt = (mbedtls_rsa_alt_context *) ctx;
- #if SIZE_MAX > UINT_MAX
- if( UINT_MAX < hash_len )
- return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
- #endif
- *sig_len = rsa_alt->key_len_func( rsa_alt->key );
- return( rsa_alt->sign_func( rsa_alt->key, f_rng, p_rng, MBEDTLS_RSA_PRIVATE,
- md_alg, (unsigned int) hash_len, hash, sig ) );
- }
- static int rsa_alt_decrypt_wrap( void *ctx,
- const unsigned char *input, size_t ilen,
- unsigned char *output, size_t *olen, size_t osize,
- int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
- {
- mbedtls_rsa_alt_context *rsa_alt = (mbedtls_rsa_alt_context *) ctx;
- ((void) f_rng);
- ((void) p_rng);
- if( ilen != rsa_alt->key_len_func( rsa_alt->key ) )
- return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
- return( rsa_alt->decrypt_func( rsa_alt->key,
- MBEDTLS_RSA_PRIVATE, olen, input, output, osize ) );
- }
- #if defined(MBEDTLS_RSA_C)
- static int rsa_alt_check_pair( const void *pub, const void *prv )
- {
- unsigned char sig[MBEDTLS_MPI_MAX_SIZE];
- unsigned char hash[32];
- size_t sig_len = 0;
- int ret;
- if( rsa_alt_get_bitlen( prv ) != rsa_get_bitlen( pub ) )
- return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
- memset( hash, 0x2a, sizeof( hash ) );
- if( ( ret = rsa_alt_sign_wrap( (void *) prv, MBEDTLS_MD_NONE,
- hash, sizeof( hash ),
- sig, &sig_len, NULL, NULL ) ) != 0 )
- {
- return( ret );
- }
- if( rsa_verify_wrap( (void *) pub, MBEDTLS_MD_NONE,
- hash, sizeof( hash ), sig, sig_len ) != 0 )
- {
- return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
- }
- return( 0 );
- }
- #endif
- static void *rsa_alt_alloc_wrap( void )
- {
- void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_rsa_alt_context ) );
- if( ctx != NULL )
- memset( ctx, 0, sizeof( mbedtls_rsa_alt_context ) );
- return( ctx );
- }
- static void rsa_alt_free_wrap( void *ctx )
- {
- mbedtls_platform_zeroize( ctx, sizeof( mbedtls_rsa_alt_context ) );
- mbedtls_free( ctx );
- }
- const mbedtls_pk_info_t mbedtls_rsa_alt_info = {
- MBEDTLS_PK_RSA_ALT,
- "RSA-alt",
- rsa_alt_get_bitlen,
- rsa_alt_can_do,
- NULL,
- rsa_alt_sign_wrap,
- #if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
- NULL,
- NULL,
- #endif
- rsa_alt_decrypt_wrap,
- NULL,
- #if defined(MBEDTLS_RSA_C)
- rsa_alt_check_pair,
- #else
- NULL,
- #endif
- rsa_alt_alloc_wrap,
- rsa_alt_free_wrap,
- #if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
- NULL,
- NULL,
- #endif
- NULL,
- };
- #endif
- #endif
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