From 9ab746c7c95b7658a8f71e7063a9f715043da64a Mon Sep 17 00:00:00 2001 From: Ron Eldor Date: Sun, 15 Jul 2018 09:33:07 +0300 Subject: [PATCH] Add selftests Add selftests for key wrapping --- library/nist_kw.c | 218 +++++++++++++++++++++++++++++++++++++++ programs/test/selftest.c | 4 + 2 files changed, 222 insertions(+) diff --git a/library/nist_kw.c b/library/nist_kw.c index b7790d73c..176af9fe0 100644 --- a/library/nist_kw.c +++ b/library/nist_kw.c @@ -534,4 +534,222 @@ cleanup: #endif /* !MBEDTLS_NIST_KW_ALT */ +#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C) + +#define KW_TESTS 3 + +/* + * Test vectors taken from NIST + * https://csrc.nist.gov/Projects/Cryptographic-Algorithm-Validation-Program/CAVP-TESTING-BLOCK-CIPHER-MODES#KW + */ +static const unsigned int key_len[KW_TESTS] = { 16, 24, 32 }; + +static const unsigned char kw_key[KW_TESTS][32] = { + { 0x75, 0x75, 0xda, 0x3a, 0x93, 0x60, 0x7c, 0xc2, + 0xbf, 0xd8, 0xce, 0xc7, 0xaa, 0xdf, 0xd9, 0xa6 }, + { 0x2d, 0x85, 0x26, 0x08, 0x1d, 0x02, 0xfb, 0x5b, + 0x85, 0xf6, 0x9a, 0xc2, 0x86, 0xec, 0xd5, 0x7d, + 0x40, 0xdf, 0x5d, 0xf3, 0x49, 0x47, 0x44, 0xd3 }, + { 0x11, 0x2a, 0xd4, 0x1b, 0x48, 0x56, 0xc7, 0x25, + 0x4a, 0x98, 0x48, 0xd3, 0x0f, 0xdd, 0x78, 0x33, + 0x5b, 0x03, 0x9a, 0x48, 0xa8, 0x96, 0x2c, 0x4d, + 0x1c, 0xb7, 0x8e, 0xab, 0xd5, 0xda, 0xd7, 0x88 } +}; + +static const unsigned char kw_msg[KW_TESTS][40] = { + { 0x42, 0x13, 0x6d, 0x3c, 0x38, 0x4a, 0x3e, 0xea, + 0xc9, 0x5a, 0x06, 0x6f, 0xd2, 0x8f, 0xed, 0x3f }, + { 0x95, 0xc1, 0x1b, 0xf5, 0x35, 0x3a, 0xfe, 0xdb, + 0x98, 0xfd, 0xd6, 0xc8, 0xca, 0x6f, 0xdb, 0x6d, + 0xa5, 0x4b, 0x74, 0xb4, 0x99, 0x0f, 0xdc, 0x45, + 0xc0, 0x9d, 0x15, 0x8f, 0x51, 0xce, 0x62, 0x9d, + 0xe2, 0xaf, 0x26, 0xe3, 0x25, 0x0e, 0x6b, 0x4c }, + { 0x1b, 0x20, 0xbf, 0x19, 0x90, 0xb0, 0x65, 0xd7, + 0x98, 0xe1, 0xb3, 0x22, 0x64, 0xad, 0x50, 0xa8, + 0x74, 0x74, 0x92, 0xba, 0x09, 0xa0, 0x4d, 0xd1 } +}; + +static const size_t kw_msg_len[KW_TESTS] = { 16, 40, 24 }; +static const size_t kw_out_len[KW_TESTS] = { 24, 48, 32 }; +static const unsigned char kw_res[KW_TESTS][48] = { + { 0x03, 0x1f, 0x6b, 0xd7, 0xe6, 0x1e, 0x64, 0x3d, + 0xf6, 0x85, 0x94, 0x81, 0x6f, 0x64, 0xca, 0xa3, + 0xf5, 0x6f, 0xab, 0xea, 0x25, 0x48, 0xf5, 0xfb }, + { 0x44, 0x3c, 0x6f, 0x15, 0x09, 0x83, 0x71, 0x91, + 0x3e, 0x5c, 0x81, 0x4c, 0xa1, 0xa0, 0x42, 0xec, + 0x68, 0x2f, 0x7b, 0x13, 0x6d, 0x24, 0x3a, 0x4d, + 0x6c, 0x42, 0x6f, 0xc6, 0x97, 0x15, 0x63, 0xe8, + 0xa1, 0x4a, 0x55, 0x8e, 0x09, 0x64, 0x16, 0x19, + 0xbf, 0x03, 0xfc, 0xaf, 0x90, 0xb1, 0xfc, 0x2d }, + { 0xba, 0x8a, 0x25, 0x9a, 0x47, 0x1b, 0x78, 0x7d, + 0xd5, 0xd5, 0x40, 0xec, 0x25, 0xd4, 0x3d, 0x87, + 0x20, 0x0f, 0xda, 0xdc, 0x6d, 0x1f, 0x05, 0xd9, + 0x16, 0x58, 0x4f, 0xa9, 0xf6, 0xcb, 0xf5, 0x12 } +}; + +static const unsigned char kwp_key[KW_TESTS][32] = { + { 0x78, 0x65, 0xe2, 0x0f, 0x3c, 0x21, 0x65, 0x9a, + 0xb4, 0x69, 0x0b, 0x62, 0x9c, 0xdf, 0x3c, 0xc4 }, + { 0xf5, 0xf8, 0x96, 0xa3, 0xbd, 0x2f, 0x4a, 0x98, + 0x23, 0xef, 0x16, 0x2b, 0x00, 0xb8, 0x05, 0xd7, + 0xde, 0x1e, 0xa4, 0x66, 0x26, 0x96, 0xa2, 0x58 }, + { 0x95, 0xda, 0x27, 0x00, 0xca, 0x6f, 0xd9, 0xa5, + 0x25, 0x54, 0xee, 0x2a, 0x8d, 0xf1, 0x38, 0x6f, + 0x5b, 0x94, 0xa1, 0xa6, 0x0e, 0xd8, 0xa4, 0xae, + 0xf6, 0x0a, 0x8d, 0x61, 0xab, 0x5f, 0x22, 0x5a } +}; + +static const unsigned char kwp_msg[KW_TESTS][31] = { + { 0xbd, 0x68, 0x43, 0xd4, 0x20, 0x37, 0x8d, 0xc8, + 0x96 }, + { 0x6c, 0xcd, 0xd5, 0x85, 0x18, 0x40, 0x97, 0xeb, + 0xd5, 0xc3, 0xaf, 0x3e, 0x47, 0xd0, 0x2c, 0x19, + 0x14, 0x7b, 0x4d, 0x99, 0x5f, 0x96, 0x43, 0x66, + 0x91, 0x56, 0x75, 0x8c, 0x13, 0x16, 0x8f }, + { 0xd1 } +}; +static const size_t kwp_msg_len[KW_TESTS] = { 9, 31, 1 }; + +static const unsigned char kwp_res[KW_TESTS][48] = { + { 0x41, 0xec, 0xa9, 0x56, 0xd4, 0xaa, 0x04, 0x7e, + 0xb5, 0xcf, 0x4e, 0xfe, 0x65, 0x96, 0x61, 0xe7, + 0x4d, 0xb6, 0xf8, 0xc5, 0x64, 0xe2, 0x35, 0x00 }, + { 0x4e, 0x9b, 0xc2, 0xbc, 0xbc, 0x6c, 0x1e, 0x13, + 0xd3, 0x35, 0xbc, 0xc0, 0xf7, 0x73, 0x6a, 0x88, + 0xfa, 0x87, 0x53, 0x66, 0x15, 0xbb, 0x8e, 0x63, + 0x8b, 0xcc, 0x81, 0x66, 0x84, 0x68, 0x17, 0x90, + 0x67, 0xcf, 0xa9, 0x8a, 0x9d, 0x0e, 0x33, 0x26 }, + { 0x06, 0xba, 0x7a, 0xe6, 0xf3, 0x24, 0x8c, 0xfd, + 0xcf, 0x26, 0x75, 0x07, 0xfa, 0x00, 0x1b, 0xc4 } +}; +static const size_t kwp_out_len[KW_TESTS] = { 24, 40, 16 }; + +int mbedtls_nist_kw_self_test( int verbose ) +{ + mbedtls_nist_kw_context ctx; + unsigned char out[48]; + size_t olen; + int i; + int ret = 0; + mbedtls_nist_kw_init( &ctx ); + + for( i = 0; i < KW_TESTS; i++ ) + { + if( verbose != 0 ) + mbedtls_printf( " KW-AES-%u ", (unsigned int) key_len[i] * 8 ); + + ret = mbedtls_nist_kw_setkey( &ctx, MBEDTLS_CIPHER_ID_AES, + kw_key[i], key_len[i] * 8, 1 ); + if( ret != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( " KW: setup failed " ); + + goto end; + } + + ret = mbedtls_nist_kw_wrap( &ctx, MBEDTLS_KW_MODE_KW, kw_msg[i], + kw_msg_len[i], out, &olen, sizeof( out ) ); + if( ret != 0 || kw_out_len[i] != olen || + memcmp( out, kw_res[i], kw_out_len[i] ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed. "); + + ret = 1; + goto end; + } + + if( ( ret = mbedtls_nist_kw_setkey( &ctx, MBEDTLS_CIPHER_ID_AES, + kw_key[i], key_len[i] * 8, 0 ) ) + != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( " KW: setup failed "); + + goto end; + } + + ret = mbedtls_nist_kw_unwrap( &ctx, MBEDTLS_KW_MODE_KW, + out, olen, out, &olen, sizeof( out ) ); + + if( ret != 0 || olen != kw_msg_len[i] || + memcmp( out, kw_msg[i], kw_msg_len[i] ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed\n" ); + + ret = 1; + goto end; + } + + if( verbose != 0 ) + mbedtls_printf( " passed\n" ); + } + + for( i = 0; i < KW_TESTS; i++ ) + { + olen = sizeof( out ); + if( verbose != 0 ) + mbedtls_printf( " KWP-AES-%u ", (unsigned int) key_len[i] * 8 ); + + ret = mbedtls_nist_kw_setkey( &ctx, MBEDTLS_CIPHER_ID_AES, kwp_key[i], + key_len[i] * 8, 1 ); + if( ret != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( " KWP: setup failed " ); + + goto end; + } + ret = mbedtls_nist_kw_wrap( &ctx, MBEDTLS_KW_MODE_KWP, kwp_msg[i], + kwp_msg_len[i], out, &olen, sizeof( out ) ); + + if( ret != 0 || kwp_out_len[i] != olen || + memcmp( out, kwp_res[i], kwp_out_len[i] ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed. "); + + ret = 1; + goto end; + } + + if( ( ret = mbedtls_nist_kw_setkey( &ctx, MBEDTLS_CIPHER_ID_AES, + kwp_key[i], key_len[i] * 8, 0 ) ) + != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( " KWP: setup failed "); + + goto end; + } + + ret = mbedtls_nist_kw_unwrap( &ctx, MBEDTLS_KW_MODE_KWP, out, + olen, out, &olen, sizeof( out ) ); + + if( ret != 0 || olen != kwp_msg_len[i] || + memcmp( out, kwp_msg[i], kwp_msg_len[i] ) != 0 ) + { + if( verbose != 0 ) + mbedtls_printf( "failed. "); + + ret = 1; + goto end; + } + + if( verbose != 0 ) + mbedtls_printf( " passed\n" ); + } +end: + mbedtls_nist_kw_free( &ctx ); + + if( verbose != 0 ) + mbedtls_printf( "\n" ); + + return( ret ); +} + +#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */ + #endif /* MBEDTLS_NIST_KW_C */ diff --git a/programs/test/selftest.c b/programs/test/selftest.c index df5634de5..f923a43f5 100644 --- a/programs/test/selftest.c +++ b/programs/test/selftest.c @@ -57,6 +57,7 @@ #include "mbedtls/ecp.h" #include "mbedtls/ecjpake.h" #include "mbedtls/timing.h" +#include "mbedtls/nist_kw.h" #include @@ -208,6 +209,9 @@ const selftest_t selftests[] = #if defined(MBEDTLS_CCM_C) && defined(MBEDTLS_AES_C) {"ccm", mbedtls_ccm_self_test}, #endif +#if defined(MBEDTLS_NIST_KW_C) && defined(MBEDTLS_AES_C) + {"nist_kw", mbedtls_nist_kw_self_test}, +#endif #if defined(MBEDTLS_CMAC_C) {"cmac", mbedtls_cmac_self_test}, #endif