aws / aws-nitro-enclaves-sdk-c - Conditional Complexity

Intro

Conditional complexity (also called cyclomatic complexity) is a term used to measure the complexity of software. The term refers to the number of possible paths through a program function. A higher value ofter means higher maintenance and testing costs (infosecinstitute.com).
Conditional complexity is calculated by counting all conditions in the program that can affect the execution path (e.g. if statement, loops, switches, and/or operators, try and catch blocks...).
Conditional complexity is measured at the unit level (methods, functions...).
Units are classified in four categories based on the measured McCabe index: 1-5 (simple units), 6-10 (medium complex units), 11-25 (complex units), 26+ (very complex units).

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Conditional Complexity Overall

There are 52 units with 1,230 lines of code in units (33.6% of code).

0 very complex units (0 lines of code)
1 complex units (134 lines of code)
0 medium complex units (0 lines of code)
15 simple units (556 lines of code)
36 very simple units (540 lines of code)

Legend:

51+

26-50

11-25

6-10

1-5

Alternative Visuals

3D view of all units

Conditional Complexity per Extension

51+

26-50

11-25

6-10

1-5

Conditional Complexity per Logical Component

primary logical decomposition

51+

26-50

11-25

6-10

1-5

Most Complex Units

Top 50 most complex units

Unit	# lines	McCabe index	# params
int aws_cms_parse_enveloped_data() in source/cms.c	134	46	4
int aws_kms_decrypt_blocking_with_context() in source/kms.c	55	10	6
int aws_attestation_rsa_decrypt() in source/attestation.c	34	10	4
int aws_nitro_enclaves_library_seed_entropy() in source/nitro_enclaves.c	36	9	1
static int s_aws_array_list_from_json() in source/kms.c	38	8	3
void aws_kms_decrypt_request_destroy() in source/kms.c	28	8	1
int aws_attestation_request() in source/attestation.c	34	8	3
static int s_aws_hash_table_from_json() in source/kms.c	45	7	3
static int s_aws_array_list_to_json() in source/kms.c	33	7	3
void aws_kms_encrypt_request_destroy() in source/kms.c	25	7	1
void aws_kms_generate_data_key_request_destroy() in source/kms.c	25	7	1
int aws_kms_generate_data_key_blocking() in source/kms.c	61	7	5
int aws_kms_generate_random_blocking() in source/kms.c	55	7	3
int aws_cms_cipher_decrypt() in source/cms.c	34	7	4
static int s_aws_byte_buf_to_base64_json() in source/kms.c	33	6	4
void aws_kms_generate_data_key_response_destroy() in source/kms.c	20	6	1
static int s_on_incoming_headers_fn() in source/rest.c	26	5	5
static void s_on_sign_complete() in source/rest.c	29	5	3
static int s_aws_byte_buf_from_base64_json() in source/kms.c	25	5	3
static int s_aws_hash_table_to_json() in source/kms.c	23	5	3
void aws_kms_decrypt_response_destroy() in source/kms.c	17	5	1
static void s_on_client_connection_setup() in source/rest.c	12	4	3
static bool s_aws_encryption_algorithm_from_aws_string() in source/kms.c	19	4	2
void aws_kms_encrypt_response_destroy() in source/kms.c	14	4	1
void aws_kms_generate_random_request_destroy() in source/kms.c	14	4	1
void aws_kms_generate_random_response_destroy() in source/kms.c	14	4	1
static int s_decrypt_ciphertext_for_recipient() in source/kms.c	32	4	4
int aws_kms_encrypt_blocking_with_context() in source/kms.c	30	4	5
void aws_nitro_enclaves_library_init() in source/nitro_enclaves.c	14	3	1
static bool s_aws_key_spec_from_aws_string() in source/kms.c	13	3	2
static int s_string_to_json() in source/kms.c	14	3	3
static int s_int_to_json() in source/kms.c	13	3	3
int s_string_to_json_object() in source/kms.c	14	3	3
void aws_recipient_destroy() in source/kms.c	11	3	1
void aws_nitro_enclaves_kms_client_config_destroy() in source/kms.c	10	3	1
void aws_nitro_enclaves_library_clean_up() in source/nitro_enclaves.c	8	2	1
static void s_on_client_connection_shutdown() in source/rest.c	9	2	3
static void s_on_stream_complete_fn() in source/rest.c	13	2	3
void aws_nitro_enclaves_rest_response_destroy() in source/rest.c	12	2	1
static bool s_aws_key_encryption_algorithm_from_aws_string() in source/kms.c	11	2	2
static int s_int_from_json() in source/kms.c	10	2	2
void aws_nitro_enclaves_kms_client_destroy() in source/kms.c	8	2	1
static int s_aws_nitro_enclaves_kms_client_call_blocking() in source/kms.c	28	2	4
int aws_kms_decrypt_blocking_from_request() in source/kms.c	19	2	3
int aws_kms_encrypt_blocking_from_request() in source/kms.c	18	2	3
void aws_attestation_rsa_keypair_destroy() in source/attestation.c	7	2	1
void aws_nitro_enclaves_rest_client_destroy() in source/rest.c	13	1	1
static int s_on_incoming_header_block_done_fn() in source/rest.c	9	1	3
static int s_on_incoming_body_fn() in source/rest.c	6	1	3
int aws_kms_decrypt_blocking() in source/kms.c	9	1	5