Merge pull request #5849 from gilles-peskine-arm/psa-raw_key_agreement-buffer_too_small-2.28
Backport 2.28: Make psa_raw_key_agreement return BUFFER_TOO_SMALL
diff --git a/ChangeLog.d/psa_raw_key_agreement-buffer_too_small.txt b/ChangeLog.d/psa_raw_key_agreement-buffer_too_small.txt
new file mode 100644
index 0000000..415c849
--- /dev/null
+++ b/ChangeLog.d/psa_raw_key_agreement-buffer_too_small.txt
@@ -0,0 +1,3 @@
+Bugfix
+ * psa_raw_key_agreement() now returns PSA_ERROR_BUFFER_TOO_SMALL when
+ applicable. Fixes #5735.
diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index c74aa15..8df26f0 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -5019,6 +5019,22 @@
if( status != PSA_SUCCESS )
goto exit;
+ /* PSA_RAW_KEY_AGREEMENT_OUTPUT_SIZE() is in general an upper bound
+ * for the output size. The PSA specification only guarantees that this
+ * function works if output_size >= PSA_RAW_KEY_AGREEMENT_OUTPUT_SIZE(...),
+ * but it might be nice to allow smaller buffers if the output fits.
+ * At the time of writing this comment, with only ECDH implemented,
+ * PSA_RAW_KEY_AGREEMENT_OUTPUT_SIZE() is exact so the point is moot.
+ * If FFDH is implemented, PSA_RAW_KEY_AGREEMENT_OUTPUT_SIZE() can easily
+ * be exact for it as well. */
+ size_t expected_length =
+ PSA_RAW_KEY_AGREEMENT_OUTPUT_SIZE( slot->attr.type, slot->attr.bits );
+ if( output_size < expected_length )
+ {
+ status = PSA_ERROR_BUFFER_TOO_SMALL;
+ goto exit;
+ }
+
status = psa_key_agreement_raw_internal( alg, slot,
peer_key, peer_key_length,
output, output_size,
diff --git a/tests/include/test/helpers.h b/tests/include/test/helpers.h
index 5d10190..540f163 100644
--- a/tests/include/test/helpers.h
+++ b/tests/include/test/helpers.h
@@ -154,6 +154,48 @@
unsigned long long value1, unsigned long long value2 );
/**
+ * \brief Record the current test case as a failure based
+ * on comparing two unsigned integers.
+ *
+ * This function is usually called via the macro
+ * #TEST_LE_U.
+ *
+ * \param test Description of the failure or assertion that failed. This
+ * MUST be a string literal. This normally has the form
+ * "EXPR1 <= EXPR2" where EXPR1 has the value \p value1
+ * and EXPR2 has the value \p value2.
+ * \param line_no Line number where the failure originated.
+ * \param filename Filename where the failure originated.
+ * \param value1 The first value to compare.
+ * \param value2 The second value to compare.
+ *
+ * \return \c 1 if \p value1 <= \p value2, otherwise \c 0.
+ */
+int mbedtls_test_le_u( const char *test, int line_no, const char* filename,
+ unsigned long long value1, unsigned long long value2 );
+
+/**
+ * \brief Record the current test case as a failure based
+ * on comparing two signed integers.
+ *
+ * This function is usually called via the macro
+ * #TEST_LE_S.
+ *
+ * \param test Description of the failure or assertion that failed. This
+ * MUST be a string literal. This normally has the form
+ * "EXPR1 <= EXPR2" where EXPR1 has the value \p value1
+ * and EXPR2 has the value \p value2.
+ * \param line_no Line number where the failure originated.
+ * \param filename Filename where the failure originated.
+ * \param value1 The first value to compare.
+ * \param value2 The second value to compare.
+ *
+ * \return \c 1 if \p value1 <= \p value2, otherwise \c 0.
+ */
+int mbedtls_test_le_s( const char *test, int line_no, const char* filename,
+ long long value1, long long value2 );
+
+/**
* \brief This function decodes the hexadecimal representation of
* data.
*
diff --git a/tests/include/test/macros.h b/tests/include/test/macros.h
index 7b4c2f6..2d68f7d 100644
--- a/tests/include/test/macros.h
+++ b/tests/include/test/macros.h
@@ -100,6 +100,32 @@
goto exit; \
} while( 0 )
+/** Evaluate two unsigned integer expressions and fail the test case
+ * if they are not in increasing order (left <= right).
+ *
+ * \param expr1 An integral-typed expression to evaluate.
+ * \param expr2 Another integral-typed expression to evaluate.
+ */
+#define TEST_LE_U( expr1, expr2 ) \
+ do { \
+ if( ! mbedtls_test_le_u( #expr1 " <= " #expr2, __LINE__, __FILE__, \
+ expr1, expr2 ) ) \
+ goto exit; \
+ } while( 0 )
+
+/** Evaluate two signed integer expressions and fail the test case
+ * if they are not in increasing order (left <= right).
+ *
+ * \param expr1 An integral-typed expression to evaluate.
+ * \param expr2 Another integral-typed expression to evaluate.
+ */
+#define TEST_LE_S( expr1, expr2 ) \
+ do { \
+ if( ! mbedtls_test_le_s( #expr1 " <= " #expr2, __LINE__, __FILE__, \
+ expr1, expr2 ) ) \
+ goto exit; \
+ } while( 0 )
+
/** Allocate memory dynamically and fail the test case if this fails.
* The allocated memory will be filled with zeros.
*
diff --git a/tests/scripts/test_psa_compliance.py b/tests/scripts/test_psa_compliance.py
index b3bfd31..777ffcb 100755
--- a/tests/scripts/test_psa_compliance.py
+++ b/tests/scripts/test_psa_compliance.py
@@ -50,7 +50,7 @@
#
# Web URL: https://github.com/bensze01/psa-arch-tests/tree/fixes-for-mbedtls-2
PSA_ARCH_TESTS_REPO = 'https://github.com/bensze01/psa-arch-tests.git'
-PSA_ARCH_TESTS_REF = 'fixes-for-mbedtls-2'
+PSA_ARCH_TESTS_REF = 'fix-5735-2.28'
#pylint: disable=too-many-branches,too-many-statements
def main():
diff --git a/tests/src/helpers.c b/tests/src/helpers.c
index c53e4fc..abc6852 100644
--- a/tests/src/helpers.c
+++ b/tests/src/helpers.c
@@ -140,6 +140,52 @@
return( 0 );
}
+int mbedtls_test_le_u( const char *test, int line_no, const char* filename,
+ unsigned long long value1, unsigned long long value2 )
+{
+ if( value1 <= value2 )
+ return( 1 );
+ if( mbedtls_test_info.result == MBEDTLS_TEST_RESULT_FAILED )
+ {
+ /* We've already recorded the test as having failed. Don't
+ * overwrite any previous information about the failure. */
+ return( 0 );
+ }
+ mbedtls_test_fail( test, line_no, filename );
+ (void) mbedtls_snprintf( mbedtls_test_info.line1,
+ sizeof( mbedtls_test_info.line1 ),
+ "lhs = 0x%016llx = %llu",
+ value1, value1 );
+ (void) mbedtls_snprintf( mbedtls_test_info.line2,
+ sizeof( mbedtls_test_info.line2 ),
+ "rhs = 0x%016llx = %llu",
+ value2, value2 );
+ return( 0 );
+}
+
+int mbedtls_test_le_s( const char *test, int line_no, const char* filename,
+ long long value1, long long value2 )
+{
+ if( value1 <= value2 )
+ return( 1 );
+ if( mbedtls_test_info.result == MBEDTLS_TEST_RESULT_FAILED )
+ {
+ /* We've already recorded the test as having failed. Don't
+ * overwrite any previous information about the failure. */
+ return( 0 );
+ }
+ mbedtls_test_fail( test, line_no, filename );
+ (void) mbedtls_snprintf( mbedtls_test_info.line1,
+ sizeof( mbedtls_test_info.line1 ),
+ "lhs = 0x%016llx = %lld",
+ (unsigned long long) value1, value1 );
+ (void) mbedtls_snprintf( mbedtls_test_info.line2,
+ sizeof( mbedtls_test_info.line2 ),
+ "rhs = 0x%016llx = %lld",
+ (unsigned long long) value2, value2 );
+ return( 0 );
+}
+
int mbedtls_test_unhexify( unsigned char *obuf,
size_t obufmax,
const char *ibuf,
diff --git a/tests/suites/test_suite_psa_crypto.function b/tests/suites/test_suite_psa_crypto.function
index 8950f8d..f9e9093 100644
--- a/tests/suites/test_suite_psa_crypto.function
+++ b/tests/suites/test_suite_psa_crypto.function
@@ -289,7 +289,7 @@
/* Check that the length for a truncated MAC always fits in the algorithm
* encoding. The shifted mask is the maximum truncated value. The
* untruncated algorithm may be one byte larger. */
- TEST_ASSERT( PSA_MAC_MAX_SIZE <= 1 + max_truncated_mac_size );
+ TEST_LE_U( PSA_MAC_MAX_SIZE, 1 + max_truncated_mac_size );
#if defined(MBEDTLS_TEST_DEPRECATED)
/* Check deprecated constants. */
@@ -591,7 +591,7 @@
* and export_size. On errors, the exported length must be 0. */
TEST_ASSERT( exported_length != INVALID_EXPORT_LENGTH );
TEST_ASSERT( status == PSA_SUCCESS || exported_length == 0 );
- TEST_ASSERT( exported_length <= export_size );
+ TEST_LE_U( exported_length, export_size );
TEST_ASSERT( mem_is_char( exported + exported_length, 0,
export_size - exported_length ) );
@@ -626,7 +626,7 @@
TEST_ASSERT( exported_length <=
PSA_EXPORT_KEY_OUTPUT_SIZE( type,
psa_get_key_bits( &got_attributes ) ) );
- TEST_ASSERT( exported_length <= PSA_EXPORT_KEY_PAIR_MAX_SIZE );
+ TEST_LE_U( exported_length, PSA_EXPORT_KEY_PAIR_MAX_SIZE );
destroy:
/* Destroy the key */
@@ -685,12 +685,12 @@
size_t bits;
PSA_ASSERT( psa_get_key_attributes( key, &attributes ) );
bits = psa_get_key_bits( &attributes );
- TEST_ASSERT( expected_public_key->len <=
- PSA_EXPORT_KEY_OUTPUT_SIZE( public_type, bits ) );
- TEST_ASSERT( expected_public_key->len <=
- PSA_EXPORT_PUBLIC_KEY_OUTPUT_SIZE( public_type, bits ) );
- TEST_ASSERT( expected_public_key->len <=
- PSA_EXPORT_PUBLIC_KEY_MAX_SIZE );
+ TEST_LE_U( expected_public_key->len,
+ PSA_EXPORT_KEY_OUTPUT_SIZE( public_type, bits ) );
+ TEST_LE_U( expected_public_key->len,
+ PSA_EXPORT_PUBLIC_KEY_OUTPUT_SIZE( public_type, bits ) );
+ TEST_LE_U( expected_public_key->len,
+ PSA_EXPORT_PUBLIC_KEY_MAX_SIZE );
ASSERT_COMPARE( expected_public_key->x, expected_public_key->len,
exported, exported_length );
}
@@ -983,8 +983,8 @@
size_t tag_length = tag_length_arg;
size_t output_length;
- TEST_ASSERT( nonce_length <= sizeof( nonce ) );
- TEST_ASSERT( tag_length <= sizeof( tag ) );
+ TEST_LE_U( nonce_length, sizeof( nonce ) );
+ TEST_LE_U( tag_length, sizeof( tag ) );
PSA_ASSERT( psa_crypto_init( ) );
@@ -1576,7 +1576,7 @@
status = psa_hash_compute( alg, input->x, input->len,
output, output_size, &output_length );
TEST_EQUAL( status, expected_status );
- TEST_ASSERT( output_length <= output_size );
+ TEST_LE_U( output_length, output_size );
exit:
mbedtls_free( output );
@@ -2132,7 +2132,7 @@
expected_mac->len + 1,
};
- TEST_ASSERT( mac_buffer_size <= PSA_MAC_MAX_SIZE );
+ TEST_LE_U( mac_buffer_size, PSA_MAC_MAX_SIZE );
/* We expect PSA_MAC_LENGTH to be exact. */
TEST_ASSERT( expected_mac->len == mac_buffer_size );
@@ -2210,7 +2210,7 @@
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
uint8_t *perturbed_mac = NULL;
- TEST_ASSERT( expected_mac->len <= PSA_MAC_MAX_SIZE );
+ TEST_LE_U( expected_mac->len, PSA_MAC_MAX_SIZE );
PSA_ASSERT( psa_crypto_init( ) );
@@ -2608,14 +2608,14 @@
PSA_ASSERT( psa_crypto_init( ) );
/* Validate size macros */
- TEST_ASSERT( ciphertext->len <=
- PSA_CIPHER_ENCRYPT_OUTPUT_SIZE( key_type, alg, plaintext->len ) );
- TEST_ASSERT( PSA_CIPHER_ENCRYPT_OUTPUT_SIZE( key_type, alg, plaintext->len ) <=
+ TEST_LE_U( ciphertext->len,
+ PSA_CIPHER_ENCRYPT_OUTPUT_SIZE( key_type, alg, plaintext->len ) );
+ TEST_LE_U( PSA_CIPHER_ENCRYPT_OUTPUT_SIZE( key_type, alg, plaintext->len ),
PSA_CIPHER_ENCRYPT_OUTPUT_MAX_SIZE( plaintext->len ) );
- TEST_ASSERT( plaintext->len <=
- PSA_CIPHER_DECRYPT_OUTPUT_SIZE( key_type, alg, ciphertext->len ) );
- TEST_ASSERT( PSA_CIPHER_DECRYPT_OUTPUT_SIZE( key_type, alg, ciphertext->len ) <=
- PSA_CIPHER_DECRYPT_OUTPUT_MAX_SIZE( ciphertext->len ) );
+ TEST_LE_U( plaintext->len,
+ PSA_CIPHER_DECRYPT_OUTPUT_SIZE( key_type, alg, ciphertext->len ) );
+ TEST_LE_U( PSA_CIPHER_DECRYPT_OUTPUT_SIZE( key_type, alg, ciphertext->len ),
+ PSA_CIPHER_DECRYPT_OUTPUT_MAX_SIZE( ciphertext->len ) );
/* Set up key and output buffer */
@@ -2655,7 +2655,7 @@
plaintext->x, plaintext->len,
output, output_buffer_size,
&length ) );
- TEST_ASSERT( length <= output_buffer_size );
+ TEST_LE_U( length, output_buffer_size );
output_length += length;
PSA_ASSERT( psa_cipher_finish( &operation,
output + output_length,
@@ -2673,7 +2673,7 @@
ciphertext->x, ciphertext->len,
output, output_buffer_size,
&length ) );
- TEST_ASSERT( length <= output_buffer_size );
+ TEST_LE_U( length, output_buffer_size );
output_length += length;
PSA_ASSERT( psa_cipher_finish( &operation,
output + output_length,
@@ -2786,10 +2786,10 @@
the output is not possible. Validating with multipart encryption. */
PSA_ASSERT( psa_cipher_encrypt( key, alg, input->x, input->len, output1,
output1_buffer_size, &output1_length ) );
- TEST_ASSERT( output1_length <=
- PSA_CIPHER_ENCRYPT_OUTPUT_SIZE( key_type, alg, input->len ) );
- TEST_ASSERT( output1_length <=
- PSA_CIPHER_ENCRYPT_OUTPUT_MAX_SIZE( input->len ) );
+ TEST_LE_U( output1_length,
+ PSA_CIPHER_ENCRYPT_OUTPUT_SIZE( key_type, alg, input->len ) );
+ TEST_LE_U( output1_length,
+ PSA_CIPHER_ENCRYPT_OUTPUT_MAX_SIZE( input->len ) );
PSA_ASSERT( psa_cipher_encrypt_setup( &operation, key, alg ) );
PSA_ASSERT( psa_cipher_set_iv( &operation, output1, iv_size ) );
@@ -2798,20 +2798,20 @@
input->x, input->len,
output2, output2_buffer_size,
&function_output_length ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type, alg, input->len ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( input->len ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type, alg, input->len ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( input->len ) );
output2_length += function_output_length;
PSA_ASSERT( psa_cipher_finish( &operation,
output2 + output2_length,
output2_buffer_size - output2_length,
&function_output_length ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE );
output2_length += function_output_length;
PSA_ASSERT( psa_cipher_abort( &operation ) );
@@ -2871,15 +2871,15 @@
PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg );
ASSERT_ALLOC( output, output_buffer_size );
- TEST_ASSERT( first_part_size <= input->len );
+ TEST_LE_U( first_part_size, input->len );
PSA_ASSERT( psa_cipher_update( &operation, input->x, first_part_size,
output, output_buffer_size,
&function_output_length ) );
TEST_ASSERT( function_output_length == output1_length );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type, alg, first_part_size ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( first_part_size) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type, alg, first_part_size ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( first_part_size) );
total_output_length += function_output_length;
if( first_part_size < input->len )
@@ -2892,12 +2892,12 @@
output_buffer_size - total_output_length,
&function_output_length ) );
TEST_ASSERT( function_output_length == output2_length );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type,
- alg,
- input->len - first_part_size ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( input->len ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type,
+ alg,
+ input->len - first_part_size ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( input->len ) );
total_output_length += function_output_length;
}
@@ -2906,10 +2906,10 @@
output + total_output_length ),
output_buffer_size - total_output_length,
&function_output_length );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE );
total_output_length += function_output_length;
TEST_EQUAL( status, expected_status );
@@ -2973,16 +2973,16 @@
PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg );
ASSERT_ALLOC( output, output_buffer_size );
- TEST_ASSERT( first_part_size <= input->len );
+ TEST_LE_U( first_part_size, input->len );
PSA_ASSERT( psa_cipher_update( &operation,
input->x, first_part_size,
output, output_buffer_size,
&function_output_length ) );
TEST_ASSERT( function_output_length == output1_length );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type, alg, first_part_size ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( first_part_size ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type, alg, first_part_size ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( first_part_size ) );
total_output_length += function_output_length;
if( first_part_size < input->len )
@@ -2995,12 +2995,12 @@
output_buffer_size - total_output_length,
&function_output_length ) );
TEST_ASSERT( function_output_length == output2_length );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type,
- alg,
- input->len - first_part_size ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( input->len ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type,
+ alg,
+ input->len - first_part_size ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( input->len ) );
total_output_length += function_output_length;
}
@@ -3009,10 +3009,10 @@
output + total_output_length ),
output_buffer_size - total_output_length,
&function_output_length );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE );
total_output_length += function_output_length;
TEST_EQUAL( status, expected_status );
@@ -3129,10 +3129,10 @@
PSA_ASSERT( psa_cipher_decrypt( key, alg, input, input_buffer_size, output,
output_buffer_size, &output_length ) );
- TEST_ASSERT( output_length <=
- PSA_CIPHER_DECRYPT_OUTPUT_SIZE( key_type, alg, input_buffer_size ) );
- TEST_ASSERT( output_length <=
- PSA_CIPHER_DECRYPT_OUTPUT_MAX_SIZE( input_buffer_size ) );
+ TEST_LE_U( output_length,
+ PSA_CIPHER_DECRYPT_OUTPUT_SIZE( key_type, alg, input_buffer_size ) );
+ TEST_LE_U( output_length,
+ PSA_CIPHER_DECRYPT_OUTPUT_MAX_SIZE( input_buffer_size ) );
ASSERT_COMPARE( expected_output->x, expected_output->len,
output, output_length );
@@ -3175,10 +3175,10 @@
PSA_ASSERT( psa_cipher_encrypt( key, alg, input->x, input->len,
output1, output1_size,
&output1_length ) );
- TEST_ASSERT( output1_length <=
- PSA_CIPHER_ENCRYPT_OUTPUT_SIZE( key_type, alg, input->len ) );
- TEST_ASSERT( output1_length <=
- PSA_CIPHER_ENCRYPT_OUTPUT_MAX_SIZE( input->len ) );
+ TEST_LE_U( output1_length,
+ PSA_CIPHER_ENCRYPT_OUTPUT_SIZE( key_type, alg, input->len ) );
+ TEST_LE_U( output1_length,
+ PSA_CIPHER_ENCRYPT_OUTPUT_MAX_SIZE( input->len ) );
output2_size = output1_length;
ASSERT_ALLOC( output2, output2_size );
@@ -3186,10 +3186,10 @@
PSA_ASSERT( psa_cipher_decrypt( key, alg, output1, output1_length,
output2, output2_size,
&output2_length ) );
- TEST_ASSERT( output2_length <=
- PSA_CIPHER_DECRYPT_OUTPUT_SIZE( key_type, alg, output1_length ) );
- TEST_ASSERT( output2_length <=
- PSA_CIPHER_DECRYPT_OUTPUT_MAX_SIZE( output1_length ) );
+ TEST_LE_U( output2_length,
+ PSA_CIPHER_DECRYPT_OUTPUT_SIZE( key_type, alg, output1_length ) );
+ TEST_LE_U( output2_length,
+ PSA_CIPHER_DECRYPT_OUTPUT_MAX_SIZE( output1_length ) );
ASSERT_COMPARE( input->x, input->len, output2, output2_length );
@@ -3246,19 +3246,19 @@
}
output1_buffer_size = PSA_CIPHER_ENCRYPT_OUTPUT_SIZE( key_type, alg, input->len );
- TEST_ASSERT( output1_buffer_size <=
- PSA_CIPHER_ENCRYPT_OUTPUT_MAX_SIZE( input->len ) );
+ TEST_LE_U( output1_buffer_size,
+ PSA_CIPHER_ENCRYPT_OUTPUT_MAX_SIZE( input->len ) );
ASSERT_ALLOC( output1, output1_buffer_size );
- TEST_ASSERT( first_part_size <= input->len );
+ TEST_LE_U( first_part_size, input->len );
PSA_ASSERT( psa_cipher_update( &operation1, input->x, first_part_size,
output1, output1_buffer_size,
&function_output_length ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type, alg, first_part_size ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( first_part_size ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type, alg, first_part_size ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( first_part_size ) );
output1_length += function_output_length;
PSA_ASSERT( psa_cipher_update( &operation1,
@@ -3266,31 +3266,31 @@
input->len - first_part_size,
output1, output1_buffer_size,
&function_output_length ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type,
- alg,
- input->len - first_part_size ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( input->len - first_part_size ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type,
+ alg,
+ input->len - first_part_size ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( input->len - first_part_size ) );
output1_length += function_output_length;
PSA_ASSERT( psa_cipher_finish( &operation1,
output1 + output1_length,
output1_buffer_size - output1_length,
&function_output_length ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE );
output1_length += function_output_length;
PSA_ASSERT( psa_cipher_abort( &operation1 ) );
output2_buffer_size = output1_length;
- TEST_ASSERT( output2_buffer_size <=
- PSA_CIPHER_DECRYPT_OUTPUT_SIZE( key_type, alg, output1_length ) );
- TEST_ASSERT( output2_buffer_size <=
- PSA_CIPHER_DECRYPT_OUTPUT_MAX_SIZE( output1_length ) );
+ TEST_LE_U( output2_buffer_size,
+ PSA_CIPHER_DECRYPT_OUTPUT_SIZE( key_type, alg, output1_length ) );
+ TEST_LE_U( output2_buffer_size,
+ PSA_CIPHER_DECRYPT_OUTPUT_MAX_SIZE( output1_length ) );
ASSERT_ALLOC( output2, output2_buffer_size );
if( iv_length > 0 )
@@ -3302,10 +3302,10 @@
PSA_ASSERT( psa_cipher_update( &operation2, output1, first_part_size,
output2, output2_buffer_size,
&function_output_length ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type, alg, first_part_size ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( first_part_size ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type, alg, first_part_size ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( first_part_size ) );
output2_length += function_output_length;
PSA_ASSERT( psa_cipher_update( &operation2,
@@ -3313,22 +3313,22 @@
output1_length - first_part_size,
output2, output2_buffer_size,
&function_output_length ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type,
- alg,
- output1_length - first_part_size ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( output1_length - first_part_size ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type,
+ alg,
+ output1_length - first_part_size ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( output1_length - first_part_size ) );
output2_length += function_output_length;
PSA_ASSERT( psa_cipher_finish( &operation2,
output2 + output2_length,
output2_buffer_size - output2_length,
&function_output_length ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg ) );
- TEST_ASSERT( function_output_length <=
- PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg ) );
+ TEST_LE_U( function_output_length,
+ PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE );
output2_length += function_output_length;
PSA_ASSERT( psa_cipher_abort( &operation2 ) );
@@ -3635,7 +3635,7 @@
signature_size = PSA_SIGN_OUTPUT_SIZE( key_type,
key_bits, alg );
TEST_ASSERT( signature_size != 0 );
- TEST_ASSERT( signature_size <= PSA_SIGNATURE_MAX_SIZE );
+ TEST_LE_U( signature_size, PSA_SIGNATURE_MAX_SIZE );
ASSERT_ALLOC( signature, signature_size );
/* Perform the signature. */
@@ -3706,7 +3706,7 @@
* whatever it is, it should be less than signature_size, so that
* if the caller tries to read *signature_length bytes without
* checking the error code then they don't overflow a buffer. */
- TEST_ASSERT( signature_length <= signature_size );
+ TEST_LE_U( signature_length, signature_size );
#if defined(MBEDTLS_TEST_DEPRECATED)
signature_length = INVALID_EXPORT_LENGTH;
@@ -3715,7 +3715,7 @@
signature, signature_size,
&signature_length ),
expected_status );
- TEST_ASSERT( signature_length <= signature_size );
+ TEST_LE_U( signature_length, signature_size );
#endif /* MBEDTLS_TEST_DEPRECATED */
exit:
@@ -3755,7 +3755,7 @@
signature_size = PSA_SIGN_OUTPUT_SIZE( key_type,
key_bits, alg );
TEST_ASSERT( signature_size != 0 );
- TEST_ASSERT( signature_size <= PSA_SIGNATURE_MAX_SIZE );
+ TEST_LE_U( signature_size, PSA_SIGNATURE_MAX_SIZE );
ASSERT_ALLOC( signature, signature_size );
/* Perform the signature. */
@@ -3764,7 +3764,7 @@
signature, signature_size,
&signature_length ) );
/* Check that the signature length looks sensible. */
- TEST_ASSERT( signature_length <= signature_size );
+ TEST_LE_U( signature_length, signature_size );
TEST_ASSERT( signature_length > 0 );
/* Use the library to verify that the signature is correct. */
@@ -3807,7 +3807,7 @@
psa_algorithm_t alg = alg_arg;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
- TEST_ASSERT( signature_data->len <= PSA_SIGNATURE_MAX_SIZE );
+ TEST_LE_U( signature_data->len, PSA_SIGNATURE_MAX_SIZE );
PSA_ASSERT( psa_crypto_init( ) );
@@ -3907,7 +3907,7 @@
signature_size = PSA_SIGN_OUTPUT_SIZE( key_type, key_bits, alg );
TEST_ASSERT( signature_size != 0 );
- TEST_ASSERT( signature_size <= PSA_SIGNATURE_MAX_SIZE );
+ TEST_LE_U( signature_size, PSA_SIGNATURE_MAX_SIZE );
ASSERT_ALLOC( signature, signature_size );
PSA_ASSERT( psa_sign_message( key, alg,
@@ -3966,7 +3966,7 @@
* whatever it is, it should be less than signature_size, so that
* if the caller tries to read *signature_length bytes without
* checking the error code then they don't overflow a buffer. */
- TEST_ASSERT( signature_length <= signature_size );
+ TEST_LE_U( signature_length, signature_size );
exit:
psa_reset_key_attributes( &attributes );
@@ -4005,14 +4005,14 @@
signature_size = PSA_SIGN_OUTPUT_SIZE( key_type, key_bits, alg );
TEST_ASSERT( signature_size != 0 );
- TEST_ASSERT( signature_size <= PSA_SIGNATURE_MAX_SIZE );
+ TEST_LE_U( signature_size, PSA_SIGNATURE_MAX_SIZE );
ASSERT_ALLOC( signature, signature_size );
PSA_ASSERT( psa_sign_message( key, alg,
input_data->x, input_data->len,
signature, signature_size,
&signature_length ) );
- TEST_ASSERT( signature_length <= signature_size );
+ TEST_LE_U( signature_length, signature_size );
TEST_ASSERT( signature_length > 0 );
PSA_ASSERT( psa_verify_message( key, alg,
@@ -4052,7 +4052,7 @@
psa_algorithm_t alg = alg_arg;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
- TEST_ASSERT( signature_data->len <= PSA_SIGNATURE_MAX_SIZE );
+ TEST_LE_U( signature_data->len, PSA_SIGNATURE_MAX_SIZE );
PSA_ASSERT( psa_crypto_init( ) );
@@ -4146,7 +4146,7 @@
key_bits = psa_get_key_bits( &attributes );
output_size = PSA_ASYMMETRIC_ENCRYPT_OUTPUT_SIZE( key_type, key_bits, alg );
- TEST_ASSERT( output_size <= PSA_ASYMMETRIC_ENCRYPT_OUTPUT_MAX_SIZE );
+ TEST_LE_U( output_size, PSA_ASYMMETRIC_ENCRYPT_OUTPUT_MAX_SIZE );
ASSERT_ALLOC( output, output_size );
/* Encrypt the input */
@@ -4220,13 +4220,13 @@
key_bits = psa_get_key_bits( &attributes );
output_size = PSA_ASYMMETRIC_ENCRYPT_OUTPUT_SIZE( key_type, key_bits, alg );
- TEST_ASSERT( output_size <= PSA_ASYMMETRIC_ENCRYPT_OUTPUT_MAX_SIZE );
+ TEST_LE_U( output_size, PSA_ASYMMETRIC_ENCRYPT_OUTPUT_MAX_SIZE );
ASSERT_ALLOC( output, output_size );
output2_size = input_data->len;
- TEST_ASSERT( output2_size <=
- PSA_ASYMMETRIC_DECRYPT_OUTPUT_SIZE( key_type, key_bits, alg ) );
- TEST_ASSERT( output2_size <= PSA_ASYMMETRIC_DECRYPT_OUTPUT_MAX_SIZE );
+ TEST_LE_U( output2_size,
+ PSA_ASYMMETRIC_DECRYPT_OUTPUT_SIZE( key_type, key_bits, alg ) );
+ TEST_LE_U( output2_size, PSA_ASYMMETRIC_DECRYPT_OUTPUT_MAX_SIZE );
ASSERT_ALLOC( output2, output2_size );
/* We test encryption by checking that encrypt-then-decrypt gives back
@@ -4239,7 +4239,7 @@
&output_length ) );
/* We don't know what ciphertext length to expect, but check that
* it looks sensible. */
- TEST_ASSERT( output_length <= output_size );
+ TEST_LE_U( output_length, output_size );
PSA_ASSERT( psa_asymmetric_decrypt( key, alg,
output, output_length,
@@ -4294,7 +4294,7 @@
/* Determine the maximum ciphertext length */
output_size = PSA_ASYMMETRIC_DECRYPT_OUTPUT_SIZE( key_type, key_bits, alg );
- TEST_ASSERT( output_size <= PSA_ASYMMETRIC_DECRYPT_OUTPUT_MAX_SIZE );
+ TEST_LE_U( output_size, PSA_ASYMMETRIC_DECRYPT_OUTPUT_MAX_SIZE );
ASSERT_ALLOC( output, output_size );
PSA_ASSERT( psa_asymmetric_decrypt( key, alg,
@@ -4367,7 +4367,7 @@
output, output_size,
&output_length );
TEST_EQUAL( actual_status, expected_status );
- TEST_ASSERT( output_length <= output_size );
+ TEST_LE_U( output_length, output_size );
/* If the label is empty, the test framework puts a non-null pointer
* in label->x. Test that a null pointer works as well. */
@@ -4382,7 +4382,7 @@
output, output_size,
&output_length );
TEST_EQUAL( actual_status, expected_status );
- TEST_ASSERT( output_length <= output_size );
+ TEST_LE_U( output_length, output_size );
}
exit:
@@ -5094,7 +5094,6 @@
size_t output_length = ~0;
size_t key_bits;
- ASSERT_ALLOC( output, expected_output->len );
PSA_ASSERT( psa_crypto_init( ) );
psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_DERIVE );
@@ -5107,16 +5106,47 @@
PSA_ASSERT( psa_get_key_attributes( our_key, &attributes ) );
key_bits = psa_get_key_bits( &attributes );
+ /* Validate size macros */
+ TEST_LE_U( expected_output->len,
+ PSA_RAW_KEY_AGREEMENT_OUTPUT_SIZE( our_key_type, key_bits ) );
+ TEST_LE_U( PSA_RAW_KEY_AGREEMENT_OUTPUT_SIZE( our_key_type, key_bits ),
+ PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE );
+
+ /* Good case with exact output size */
+ ASSERT_ALLOC( output, expected_output->len );
PSA_ASSERT( psa_raw_key_agreement( alg, our_key,
peer_key_data->x, peer_key_data->len,
output, expected_output->len,
&output_length ) );
ASSERT_COMPARE( output, output_length,
expected_output->x, expected_output->len );
- TEST_ASSERT( output_length <=
- PSA_RAW_KEY_AGREEMENT_OUTPUT_SIZE( our_key_type, key_bits ) );
- TEST_ASSERT( output_length <=
- PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE );
+ mbedtls_free( output );
+ output = NULL;
+ output_length = ~0;
+
+ /* Larger buffer */
+ ASSERT_ALLOC( output, expected_output->len + 1 );
+ PSA_ASSERT( psa_raw_key_agreement( alg, our_key,
+ peer_key_data->x, peer_key_data->len,
+ output, expected_output->len + 1,
+ &output_length ) );
+ ASSERT_COMPARE( output, output_length,
+ expected_output->x, expected_output->len );
+ mbedtls_free( output );
+ output = NULL;
+ output_length = ~0;
+
+ /* Buffer too small */
+ ASSERT_ALLOC( output, expected_output->len - 1 );
+ TEST_EQUAL( psa_raw_key_agreement( alg, our_key,
+ peer_key_data->x, peer_key_data->len,
+ output, expected_output->len - 1,
+ &output_length ),
+ PSA_ERROR_BUFFER_TOO_SMALL );
+ /* Not required by the spec, but good robustness */
+ TEST_LE_U( output_length, expected_output->len - 1 );
+ mbedtls_free( output );
+ output = NULL;
exit:
mbedtls_free( output );