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Update naming of internal LMS functions

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To comply with the mbedtls_ requirement

Signed-off-by: Raef Coles <raef.coles@arm.com>
This commit is contained in:
Raef Coles 2022-09-27 10:59:16 +01:00
parent 40158e11fc
commit ad05425ab7
No known key found for this signature in database
GPG key ID: 1AAF1B43DF2086F4
3 changed files with 51 additions and 45 deletions
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53
library/lmots.c
View file

@ -73,8 +73,8 @@ static const unsigned char D_MESSAGE_CONSTANT_BYTES[D_CONST_LEN] = {0x81, 0x81};
int( *mbedtls_lmots_sign_private_key_invalidated_hook )( unsigned char * ) = NULL;
#endif /* defined(MBEDTLS_TEST_HOOKS) */
void unsigned_int_to_network_bytes( unsigned int val, size_t len,
unsigned char *bytes )
void mbedtls_lms_unsigned_int_to_network_bytes( unsigned int val, size_t len,
unsigned char *bytes )
{
size_t idx;
@ -84,8 +84,8 @@ void unsigned_int_to_network_bytes( unsigned int val, size_t len,
}
}
unsigned int network_bytes_to_unsigned_int( size_t len,
const unsigned char *bytes )
unsigned int mbedtls_lms_network_bytes_to_unsigned_int( size_t len,
const unsigned char *bytes )
{
size_t idx;
unsigned int val = 0;
@ -200,8 +200,8 @@ static int create_digit_array_with_checksum( const mbedtls_lmots_parameters_t *p
goto exit;
checksum = lmots_checksum_calculate( params, out );
unsigned_int_to_network_bytes( checksum, CHECKSUM_LEN,
out + MBEDTLS_LMOTS_N_HASH_LEN(params->type) );
mbedtls_lms_unsigned_int_to_network_bytes( checksum, CHECKSUM_LEN,
out + MBEDTLS_LMOTS_N_HASH_LEN(params->type) );
exit:
psa_hash_abort( &op );
@ -295,15 +295,17 @@ static int hash_digit_array( const mbedtls_lmots_parameters_t *params,
if( ret != 0 )
goto exit;
unsigned_int_to_network_bytes( i_digit_idx, I_DIGIT_IDX_LEN,
i_digit_idx_bytes );
mbedtls_lms_unsigned_int_to_network_bytes( i_digit_idx,
I_DIGIT_IDX_LEN,
i_digit_idx_bytes );
status = psa_hash_update( &op, i_digit_idx_bytes, I_DIGIT_IDX_LEN );
ret = mbedtls_lms_error_from_psa( status );
if( ret != 0 )
goto exit;
unsigned_int_to_network_bytes( j_hash_idx, J_HASH_IDX_LEN,
j_hash_idx_bytes );
mbedtls_lms_unsigned_int_to_network_bytes( j_hash_idx,
J_HASH_IDX_LEN,
j_hash_idx_bytes );
status = psa_hash_update( &op, j_hash_idx_bytes, J_HASH_IDX_LEN );
ret = mbedtls_lms_error_from_psa( status );
if( ret != 0 )
@ -438,8 +440,8 @@ int mbedtls_lmots_import_public_key( mbedtls_lmots_public_t *ctx,
const unsigned char *key, size_t key_len )
{
ctx->params.type =
network_bytes_to_unsigned_int( MBEDTLS_LMOTS_TYPE_LEN,
key + MBEDTLS_LMOTS_SIG_TYPE_OFFSET );
mbedtls_lms_network_bytes_to_unsigned_int( MBEDTLS_LMOTS_TYPE_LEN,
key + MBEDTLS_LMOTS_SIG_TYPE_OFFSET );
if( key_len < MBEDTLS_LMOTS_PUBLIC_KEY_LEN(ctx->params.type) )
{
@ -541,7 +543,7 @@ int mbedtls_lmots_verify( mbedtls_lmots_public_t *ctx, const unsigned char *msg,
return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
}
if( network_bytes_to_unsigned_int( MBEDTLS_LMOTS_TYPE_LEN,
if( mbedtls_lms_network_bytes_to_unsigned_int( MBEDTLS_LMOTS_TYPE_LEN,
sig + MBEDTLS_LMOTS_SIG_TYPE_OFFSET ) != MBEDTLS_LMOTS_SHA256_N32_W8 )
{
return( MBEDTLS_ERR_LMS_VERIFY_FAILED );
@ -611,11 +613,12 @@ int mbedtls_lmots_generate_private_key( mbedtls_lmots_private_t *ctx,
I_key_identifier,
sizeof( ctx->params.I_key_identifier ) );
unsigned_int_to_network_bytes( q_leaf_identifier,
MBEDTLS_LMOTS_Q_LEAF_ID_LEN,
ctx->params.q_leaf_identifier );
mbedtls_lms_unsigned_int_to_network_bytes( q_leaf_identifier,
MBEDTLS_LMOTS_Q_LEAF_ID_LEN,
ctx->params.q_leaf_identifier );
unsigned_int_to_network_bytes( 0xFF, sizeof( const_bytes ), const_bytes );
mbedtls_lms_unsigned_int_to_network_bytes( 0xFF, sizeof( const_bytes ),
const_bytes );
for ( i_digit_idx = 0;
i_digit_idx < MBEDTLS_LMOTS_P_SIG_DIGIT_COUNT(ctx->params.type);
@ -640,8 +643,8 @@ int mbedtls_lmots_generate_private_key( mbedtls_lmots_private_t *ctx,
if( ret )
goto exit;
unsigned_int_to_network_bytes( i_digit_idx, I_DIGIT_IDX_LEN,
i_digit_idx_bytes );
mbedtls_lms_unsigned_int_to_network_bytes( i_digit_idx, I_DIGIT_IDX_LEN,
i_digit_idx_bytes );
status = psa_hash_update( &op, i_digit_idx_bytes, I_DIGIT_IDX_LEN );
ret = mbedtls_lms_error_from_psa( status );
if( ret )
@ -731,9 +734,9 @@ int mbedtls_lmots_export_public_key( mbedtls_lmots_public_t *ctx,
return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
}
unsigned_int_to_network_bytes( ctx->params.type,
MBEDTLS_LMOTS_TYPE_LEN,
key + MBEDTLS_LMOTS_SIG_TYPE_OFFSET );
mbedtls_lms_unsigned_int_to_network_bytes( ctx->params.type,
MBEDTLS_LMOTS_TYPE_LEN,
key + MBEDTLS_LMOTS_SIG_TYPE_OFFSET );
memcpy( key + MBEDTLS_LMOTS_PUBLIC_KEY_I_KEY_ID_OFFSET,
ctx->params.I_key_identifier,
@ -810,9 +813,9 @@ int mbedtls_lmots_sign( mbedtls_lmots_private_t *ctx,
return( ret );
}
unsigned_int_to_network_bytes( ctx->params.type,
MBEDTLS_LMOTS_TYPE_LEN,
sig + MBEDTLS_LMOTS_SIG_TYPE_OFFSET );
mbedtls_lms_unsigned_int_to_network_bytes( ctx->params.type,
MBEDTLS_LMOTS_TYPE_LEN,
sig + MBEDTLS_LMOTS_SIG_TYPE_OFFSET );
/* Test hook to check if sig is being written to before we invalidate the
* private key.

8
library/lmots.h
View file

@ -151,8 +151,8 @@ extern int( *mbedtls_lmots_sign_private_key_invalidated_hook )( unsigned char *
* \param len The length of the string.
* \param bytes The string to output into.
*/
void unsigned_int_to_network_bytes( unsigned int val, size_t len,
unsigned char *bytes );
void mbedtls_lms_unsigned_int_to_network_bytes( unsigned int val, size_t len,
unsigned char *bytes );
/**
* \brief This function converts a network-byte-order
@ -163,8 +163,8 @@ void unsigned_int_to_network_bytes( unsigned int val, size_t len,
*
* \return The corresponding LMS error code.
*/
unsigned int network_bytes_to_unsigned_int( size_t len,
const unsigned char *bytes );
unsigned int mbedtls_lms_network_bytes_to_unsigned_int( size_t len,
const unsigned char *bytes );
/**
* \brief This function converts a \ref psa_status_t to a

35
library/lms.c
View file

@ -124,7 +124,7 @@ static int create_merkle_leaf_value( const mbedtls_lms_parameters_t *params,
if( ret != 0 )
goto exit;
unsigned_int_to_network_bytes( r_node_idx, 4, r_node_idx_bytes );
mbedtls_lms_unsigned_int_to_network_bytes( r_node_idx, 4, r_node_idx_bytes );
status = psa_hash_update( &op, r_node_idx_bytes, 4 );
ret = mbedtls_lms_error_from_psa( status );
if( ret != 0 )
@ -199,7 +199,7 @@ static int create_merkle_internal_value( const mbedtls_lms_parameters_t *params,
if( ret != 0 )
goto exit;
unsigned_int_to_network_bytes( r_node_idx, 4, r_node_idx_bytes );
mbedtls_lms_unsigned_int_to_network_bytes( r_node_idx, 4, r_node_idx_bytes );
status = psa_hash_update( &op, r_node_idx_bytes, 4 );
ret = mbedtls_lms_error_from_psa( status );
if( ret != 0 )
@ -255,7 +255,7 @@ int mbedtls_lms_import_public_key( mbedtls_lms_public_t *ctx,
return( MBEDTLS_ERR_LMS_BUFFER_TOO_SMALL );
}
type = network_bytes_to_unsigned_int( MBEDTLS_LMS_TYPE_LEN,
type = mbedtls_lms_network_bytes_to_unsigned_int( MBEDTLS_LMS_TYPE_LEN,
key + MBEDTLS_LMS_PUBLIC_KEY_TYPE_OFFSET );
if( type != MBEDTLS_LMS_SHA256_M32_H10 )
{
@ -263,7 +263,7 @@ int mbedtls_lms_import_public_key( mbedtls_lms_public_t *ctx,
}
ctx->params.type = type;
otstype = network_bytes_to_unsigned_int( MBEDTLS_LMOTS_TYPE_LEN,
otstype = mbedtls_lms_network_bytes_to_unsigned_int( MBEDTLS_LMOTS_TYPE_LEN,
key + MBEDTLS_LMS_PUBLIC_KEY_OTSTYPE_OFFSET );
if( otstype != MBEDTLS_LMOTS_SHA256_N32_W8 )
{
@ -319,14 +319,14 @@ int mbedtls_lms_verify( const mbedtls_lms_public_t *ctx,
return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
}
if( network_bytes_to_unsigned_int( MBEDTLS_LMOTS_TYPE_LEN,
if( mbedtls_lms_network_bytes_to_unsigned_int( MBEDTLS_LMOTS_TYPE_LEN,
sig + MBEDTLS_LMS_SIG_OTS_SIG_OFFSET + MBEDTLS_LMOTS_SIG_TYPE_OFFSET )
!= MBEDTLS_LMOTS_SHA256_N32_W8 )
{
return( MBEDTLS_ERR_LMS_VERIFY_FAILED );
}
if( network_bytes_to_unsigned_int( MBEDTLS_LMS_TYPE_LEN,
if( mbedtls_lms_network_bytes_to_unsigned_int( MBEDTLS_LMS_TYPE_LEN,
sig + MBEDTLS_LMS_SIG_TYPE_OFFSET(ctx->params.otstype))
!= MBEDTLS_LMS_SHA256_M32_H10 )
{
@ -334,8 +334,8 @@ int mbedtls_lms_verify( const mbedtls_lms_public_t *ctx,
}
q_leaf_identifier = network_bytes_to_unsigned_int( MBEDTLS_LMOTS_Q_LEAF_ID_LEN,
sig + MBEDTLS_LMS_SIG_Q_LEAF_ID_OFFSET );
q_leaf_identifier = mbedtls_lms_network_bytes_to_unsigned_int(
MBEDTLS_LMOTS_Q_LEAF_ID_LEN, sig + MBEDTLS_LMS_SIG_Q_LEAF_ID_OFFSET );
if( q_leaf_identifier >= MERKLE_TREE_LEAF_NODE_AM(ctx->params.type) )
{
@ -345,9 +345,9 @@ int mbedtls_lms_verify( const mbedtls_lms_public_t *ctx,
memcpy( ots_params.I_key_identifier,
ctx->params.I_key_identifier,
MBEDTLS_LMOTS_I_KEY_ID_LEN );
unsigned_int_to_network_bytes( q_leaf_identifier,
MBEDTLS_LMOTS_Q_LEAF_ID_LEN,
ots_params.q_leaf_identifier );
mbedtls_lms_unsigned_int_to_network_bytes( q_leaf_identifier,
MBEDTLS_LMOTS_Q_LEAF_ID_LEN,
ots_params.q_leaf_identifier );
ots_params.type = ctx->params.otstype;
ret = mbedtls_lmots_calculate_public_key_candidate( &ots_params, msg,
@ -676,10 +676,11 @@ int mbedtls_lms_export_public_key( mbedtls_lms_public_t *ctx,
return( MBEDTLS_ERR_LMS_BAD_INPUT_DATA );
}
unsigned_int_to_network_bytes(
mbedtls_lms_unsigned_int_to_network_bytes(
ctx->params.type,
MBEDTLS_LMS_TYPE_LEN, key + MBEDTLS_LMS_PUBLIC_KEY_TYPE_OFFSET );
unsigned_int_to_network_bytes( ctx->params.otstype, MBEDTLS_LMOTS_TYPE_LEN,
mbedtls_lms_unsigned_int_to_network_bytes( ctx->params.otstype,
MBEDTLS_LMOTS_TYPE_LEN,
key + MBEDTLS_LMS_PUBLIC_KEY_OTSTYPE_OFFSET );
memcpy( key + MBEDTLS_LMS_PUBLIC_KEY_I_KEY_ID_OFFSET,
ctx->params.I_key_identifier,
@ -748,10 +749,12 @@ int mbedtls_lms_sign( mbedtls_lms_private_t *ctx,
return( ret );
}
unsigned_int_to_network_bytes( ctx->params.type, MBEDTLS_LMS_TYPE_LEN,
mbedtls_lms_unsigned_int_to_network_bytes( ctx->params.type,
MBEDTLS_LMS_TYPE_LEN,
sig + MBEDTLS_LMS_SIG_TYPE_OFFSET(ctx->params.otstype) );
unsigned_int_to_network_bytes( q_leaf_identifier, MBEDTLS_LMOTS_Q_LEAF_ID_LEN,
sig + MBEDTLS_LMS_SIG_Q_LEAF_ID_OFFSET );
mbedtls_lms_unsigned_int_to_network_bytes( q_leaf_identifier,
MBEDTLS_LMOTS_Q_LEAF_ID_LEN,
sig + MBEDTLS_LMS_SIG_Q_LEAF_ID_OFFSET );
ret = get_merkle_path( ctx,
MERKLE_TREE_INTERNAL_NODE_AM(ctx->params.type) + q_leaf_identifier,