Mark Radbourne / mbedtls

mbed TLS Build

Dependents:   Encrypt_Decrypt1 mbed_blink_tls encrypt encrypt

tests/suites/test_suite_gcm.function@0:cdf462088d13, 2017-01-05 (annotated)

Committer:
markrad
Date:
Thu Jan 05 00:18:44 2017 +0000
Revision:
0:cdf462088d13
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
markrad 0:cdf462088d13 1 /* BEGIN_HEADER */
markrad 0:cdf462088d13 2 #include "mbedtls/gcm.h"
markrad 0:cdf462088d13 3 /* END_HEADER */
markrad 0:cdf462088d13 4
markrad 0:cdf462088d13 5 /* BEGIN_DEPENDENCIES
markrad 0:cdf462088d13 6 * depends_on:MBEDTLS_GCM_C
markrad 0:cdf462088d13 7 * END_DEPENDENCIES
markrad 0:cdf462088d13 8 */
markrad 0:cdf462088d13 9
markrad 0:cdf462088d13 10 /* BEGIN_CASE */
markrad 0:cdf462088d13 11 void gcm_encrypt_and_tag( int cipher_id,
markrad 0:cdf462088d13 12 char *hex_key_string, char *hex_src_string,
markrad 0:cdf462088d13 13 char *hex_iv_string, char *hex_add_string,
markrad 0:cdf462088d13 14 char *hex_dst_string, int tag_len_bits,
markrad 0:cdf462088d13 15 char *hex_tag_string, int init_result )
markrad 0:cdf462088d13 16 {
markrad 0:cdf462088d13 17 unsigned char key_str[128];
markrad 0:cdf462088d13 18 unsigned char src_str[128];
markrad 0:cdf462088d13 19 unsigned char dst_str[257];
markrad 0:cdf462088d13 20 unsigned char iv_str[128];
markrad 0:cdf462088d13 21 unsigned char add_str[128];
markrad 0:cdf462088d13 22 unsigned char tag_str[128];
markrad 0:cdf462088d13 23 unsigned char output[128];
markrad 0:cdf462088d13 24 unsigned char tag_output[16];
markrad 0:cdf462088d13 25 mbedtls_gcm_context ctx;
markrad 0:cdf462088d13 26 unsigned int key_len;
markrad 0:cdf462088d13 27 size_t pt_len, iv_len, add_len, tag_len = tag_len_bits / 8;
markrad 0:cdf462088d13 28
markrad 0:cdf462088d13 29 mbedtls_gcm_init( &ctx );
markrad 0:cdf462088d13 30
markrad 0:cdf462088d13 31 memset(key_str, 0x00, 128);
markrad 0:cdf462088d13 32 memset(src_str, 0x00, 128);
markrad 0:cdf462088d13 33 memset(dst_str, 0x00, 257);
markrad 0:cdf462088d13 34 memset(iv_str, 0x00, 128);
markrad 0:cdf462088d13 35 memset(add_str, 0x00, 128);
markrad 0:cdf462088d13 36 memset(tag_str, 0x00, 128);
markrad 0:cdf462088d13 37 memset(output, 0x00, 128);
markrad 0:cdf462088d13 38 memset(tag_output, 0x00, 16);
markrad 0:cdf462088d13 39
markrad 0:cdf462088d13 40 key_len = unhexify( key_str, hex_key_string );
markrad 0:cdf462088d13 41 pt_len = unhexify( src_str, hex_src_string );
markrad 0:cdf462088d13 42 iv_len = unhexify( iv_str, hex_iv_string );
markrad 0:cdf462088d13 43 add_len = unhexify( add_str, hex_add_string );
markrad 0:cdf462088d13 44
markrad 0:cdf462088d13 45 TEST_ASSERT( mbedtls_gcm_setkey( &ctx, cipher_id, key_str, key_len * 8 ) == init_result );
markrad 0:cdf462088d13 46 if( init_result == 0 )
markrad 0:cdf462088d13 47 {
markrad 0:cdf462088d13 48 TEST_ASSERT( mbedtls_gcm_crypt_and_tag( &ctx, MBEDTLS_GCM_ENCRYPT, pt_len, iv_str, iv_len, add_str, add_len, src_str, output, tag_len, tag_output ) == 0 );
markrad 0:cdf462088d13 49 hexify( dst_str, output, pt_len );
markrad 0:cdf462088d13 50 hexify( tag_str, tag_output, tag_len );
markrad 0:cdf462088d13 51
markrad 0:cdf462088d13 52 TEST_ASSERT( strcmp( (char *) dst_str, hex_dst_string ) == 0 );
markrad 0:cdf462088d13 53 TEST_ASSERT( strcmp( (char *) tag_str, hex_tag_string ) == 0 );
markrad 0:cdf462088d13 54 }
markrad 0:cdf462088d13 55
markrad 0:cdf462088d13 56 exit:
markrad 0:cdf462088d13 57 mbedtls_gcm_free( &ctx );
markrad 0:cdf462088d13 58 }
markrad 0:cdf462088d13 59 /* END_CASE */
markrad 0:cdf462088d13 60
markrad 0:cdf462088d13 61 /* BEGIN_CASE */
markrad 0:cdf462088d13 62 void gcm_decrypt_and_verify( int cipher_id,
markrad 0:cdf462088d13 63 char *hex_key_string, char *hex_src_string,
markrad 0:cdf462088d13 64 char *hex_iv_string, char *hex_add_string,
markrad 0:cdf462088d13 65 int tag_len_bits, char *hex_tag_string,
markrad 0:cdf462088d13 66 char *pt_result, int init_result )
markrad 0:cdf462088d13 67 {
markrad 0:cdf462088d13 68 unsigned char key_str[128];
markrad 0:cdf462088d13 69 unsigned char src_str[128];
markrad 0:cdf462088d13 70 unsigned char dst_str[257];
markrad 0:cdf462088d13 71 unsigned char iv_str[128];
markrad 0:cdf462088d13 72 unsigned char add_str[128];
markrad 0:cdf462088d13 73 unsigned char tag_str[128];
markrad 0:cdf462088d13 74 unsigned char output[128];
markrad 0:cdf462088d13 75 mbedtls_gcm_context ctx;
markrad 0:cdf462088d13 76 unsigned int key_len;
markrad 0:cdf462088d13 77 size_t pt_len, iv_len, add_len, tag_len = tag_len_bits / 8;
markrad 0:cdf462088d13 78 int ret;
markrad 0:cdf462088d13 79
markrad 0:cdf462088d13 80 mbedtls_gcm_init( &ctx );
markrad 0:cdf462088d13 81
markrad 0:cdf462088d13 82 memset(key_str, 0x00, 128);
markrad 0:cdf462088d13 83 memset(src_str, 0x00, 128);
markrad 0:cdf462088d13 84 memset(dst_str, 0x00, 257);
markrad 0:cdf462088d13 85 memset(iv_str, 0x00, 128);
markrad 0:cdf462088d13 86 memset(add_str, 0x00, 128);
markrad 0:cdf462088d13 87 memset(tag_str, 0x00, 128);
markrad 0:cdf462088d13 88 memset(output, 0x00, 128);
markrad 0:cdf462088d13 89
markrad 0:cdf462088d13 90 key_len = unhexify( key_str, hex_key_string );
markrad 0:cdf462088d13 91 pt_len = unhexify( src_str, hex_src_string );
markrad 0:cdf462088d13 92 iv_len = unhexify( iv_str, hex_iv_string );
markrad 0:cdf462088d13 93 add_len = unhexify( add_str, hex_add_string );
markrad 0:cdf462088d13 94 unhexify( tag_str, hex_tag_string );
markrad 0:cdf462088d13 95
markrad 0:cdf462088d13 96 TEST_ASSERT( mbedtls_gcm_setkey( &ctx, cipher_id, key_str, key_len * 8 ) == init_result );
markrad 0:cdf462088d13 97 if( init_result == 0 )
markrad 0:cdf462088d13 98 {
markrad 0:cdf462088d13 99 ret = mbedtls_gcm_auth_decrypt( &ctx, pt_len, iv_str, iv_len, add_str, add_len, tag_str, tag_len, src_str, output );
markrad 0:cdf462088d13 100
markrad 0:cdf462088d13 101 if( strcmp( "FAIL", pt_result ) == 0 )
markrad 0:cdf462088d13 102 {
markrad 0:cdf462088d13 103 TEST_ASSERT( ret == MBEDTLS_ERR_GCM_AUTH_FAILED );
markrad 0:cdf462088d13 104 }
markrad 0:cdf462088d13 105 else
markrad 0:cdf462088d13 106 {
markrad 0:cdf462088d13 107 TEST_ASSERT( ret == 0 );
markrad 0:cdf462088d13 108 hexify( dst_str, output, pt_len );
markrad 0:cdf462088d13 109
markrad 0:cdf462088d13 110 TEST_ASSERT( strcmp( (char *) dst_str, pt_result ) == 0 );
markrad 0:cdf462088d13 111 }
markrad 0:cdf462088d13 112 }
markrad 0:cdf462088d13 113
markrad 0:cdf462088d13 114 exit:
markrad 0:cdf462088d13 115 mbedtls_gcm_free( &ctx );
markrad 0:cdf462088d13 116 }
markrad 0:cdf462088d13 117 /* END_CASE */
markrad 0:cdf462088d13 118
markrad 0:cdf462088d13 119 /* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST */
markrad 0:cdf462088d13 120 void gcm_selftest()
markrad 0:cdf462088d13 121 {
markrad 0:cdf462088d13 122 TEST_ASSERT( mbedtls_gcm_self_test( 1 ) == 0 );
markrad 0:cdf462088d13 123 }
markrad 0:cdf462088d13 124 /* END_CASE */