From 1fdb8e8c17b761b1008ffb76e4c879594e0ac5e2 Mon Sep 17 00:00:00 2001 From: Dave Rodgman Date: Wed, 10 Aug 2022 11:32:07 +0100 Subject: [PATCH 01/14] Add unit tests for ECDSA with invalid public key Add tests for a case in ECDSA signing where an invalid public key is accepted in signature verification. Test data taken from the OSS-fuzz issue, and additional generated with python-ecdsa. Signed-off-by: Dave Rodgman --- tests/suites/test_suite_ecdsa.data | 60 ++++++++++++++++++++++++ tests/suites/test_suite_ecdsa.function | 65 ++++++++++++++++++++++++++ 2 files changed, 125 insertions(+) diff --git a/tests/suites/test_suite_ecdsa.data b/tests/suites/test_suite_ecdsa.data index 9bb35c54a0..7ed6fe25b4 100644 --- a/tests/suites/test_suite_ecdsa.data +++ b/tests/suites/test_suite_ecdsa.data @@ -361,3 +361,63 @@ ecdsa_prim_test_vectors:MBEDTLS_ECP_DP_SECP521R1:"0":"0151518F1AF0F563517EDD5485 ECDSA private parameter greater than n p521 depends_on:MBEDTLS_ECP_DP_SECP521R1_ENABLED ecdsa_prim_test_vectors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verify invalid public key, zero bytes of data +depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":0:0:MBEDTLS_ERR_ECP_INVALID_KEY + +ECDSA verify invalid public key, one byte of data +depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":1:0:MBEDTLS_ERR_ECP_INVALID_KEY + +ECDSA verify invalid public key, 32 bytes of data +depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":32:0:MBEDTLS_ERR_ECP_INVALID_KEY + +ECDSA verify invalid public key, 32 bytes of data +depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"12345":"1":"1":32:0:MBEDTLS_ERR_ECP_INVALID_KEY + +ECDSA verify invalid public key, 32 bytes of data +depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"12345":"1":32:0:MBEDTLS_ERR_ECP_INVALID_KEY + +ECDSA verify invalid public key, 32 bytes of data +depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"12345":32:0:MBEDTLS_ERR_ECP_INVALID_KEY + +ECDSA verify valid public key, invalid signature, 0 bytes of data +depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"0":"1":0:1:MBEDTLS_ERR_ECP_VERIFY_FAILED + +ECDSA verify valid public key, invalid signature, 1 byte of data +depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"0":"1":1:1:MBEDTLS_ERR_ECP_VERIFY_FAILED + +ECDSA verify valid public key, invalid signature, 32 bytes of data +depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141":"12":32:1:MBEDTLS_ERR_ECP_VERIFY_FAILED + +ECDSA verify valid public key, valid/incorrect signature, 0 bytes of data +depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"84eead3fb3cdbdac882412af64cc125b6784690bebf575f1c32162ab65080037":0:1:MBEDTLS_ERR_ECP_VERIFY_FAILED + +ECDSA verify valid public key, valid/incorrect signature, 1 byte of data +depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"84eead3fb3cdbdac882412af64cc125b6784690bebf575f1c32162ab65080037":1:1:MBEDTLS_ERR_ECP_VERIFY_FAILED + +ECDSA verify valid public key, valid/incorrect signature, 32 bytes of data +depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"84eead3fb3cdbdac882412af64cc125b6784690bebf575f1c32162ab65080037":32:1:MBEDTLS_ERR_ECP_VERIFY_FAILED + +ECDSA verify valid public key, correct signature, 0 bytes of data +depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":0:1:0 + +ECDSA verify valid public key, correct signature, 1 byte of data +depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":1:1:0 + +ECDSA verify valid public key, correct signature, 32 bytes of data +depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":32:1:0 \ No newline at end of file diff --git a/tests/suites/test_suite_ecdsa.function b/tests/suites/test_suite_ecdsa.function index a8b1e45a2e..947890a268 100644 --- a/tests/suites/test_suite_ecdsa.function +++ b/tests/suites/test_suite_ecdsa.function @@ -466,3 +466,68 @@ exit: mbedtls_ecdsa_free( &ctx ); } /* END_CASE */ + +/* BEGIN_CASE */ +void ecdsa_verify( int grp_id, char * x, char * y, char * r, char * s, int len, int key_is_valid, int expected ) +{ + uint8_t FUZZ_DATA[] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 32, 32, 136, 251, 46, 240, 45, 45, 27, 62, 60, 0, 0, 0, 32, 32, 32, 32, 124, 102, 235, 242, 220, 21, 68, 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public key */ + TEST_EQUAL( mbedtls_mpi_read_string( &ctx.Q.X, 16, x ), 0 ); + TEST_EQUAL( mbedtls_mpi_read_string( &ctx.Q.Y, 16, y ), 0 ); + TEST_EQUAL( mbedtls_mpi_lset( &ctx.Q.Z, 1 ), 0 ); + + /* Prepare signature R & S */ + TEST_EQUAL( mbedtls_mpi_read_string( &sig_r, 16, r ), 0 ); + TEST_EQUAL( mbedtls_mpi_read_string( &sig_s, 16, s ), 0 ); + + /* Test whether public key has expected validity */ + TEST_EQUAL( mbedtls_ecp_check_pubkey( &ctx.grp, &ctx.Q ), key_is_valid ? 0 : MBEDTLS_ERR_ECP_INVALID_KEY ); + + /* Verification */ + int result = mbedtls_ecdsa_verify( &ctx.grp, FUZZ_DATA, ( size_t ) len, &ctx.Q, &sig_r, &sig_s ); + + TEST_EQUAL( result, expected ); + + if ( !key_is_valid ) { + /* Invalid public key must always fail */ + TEST_ASSERT( result != 0 ); + } + +exit: + mbedtls_ecdsa_free( &ctx ); + mbedtls_mpi_free( &sig_r ); + mbedtls_mpi_free( &sig_s ); +} +/* END_CASE */ \ No newline at end of file From c947751a5f51191d0229e7e2e5e421eb30221dc9 Mon Sep 17 00:00:00 2001 From: Dave Rodgman Date: Wed, 10 Aug 2022 11:26:24 +0100 Subject: [PATCH 02/14] Fix ECDSA signature verification edge-case For R and S equal to 1, ensure the public key is checked for validity. Signed-off-by: Dave Rodgman --- library/ecp.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/library/ecp.c b/library/ecp.c index 009be61fc5..74c02323f3 100644 --- a/library/ecp.c +++ b/library/ecp.c @@ -2666,14 +2666,17 @@ static int mbedtls_ecp_mul_shortcuts( mbedtls_ecp_group *grp, if( mbedtls_mpi_cmp_int( m, 0 ) == 0 ) { + MBEDTLS_MPI_CHK( mbedtls_ecp_check_pubkey( grp, P ) ); MBEDTLS_MPI_CHK( mbedtls_ecp_set_zero( R ) ); } else if( mbedtls_mpi_cmp_int( m, 1 ) == 0 ) { + MBEDTLS_MPI_CHK( mbedtls_ecp_check_pubkey( grp, P ) ); MBEDTLS_MPI_CHK( mbedtls_ecp_copy( R, P ) ); } else if( mbedtls_mpi_cmp_int( m, -1 ) == 0 ) { + MBEDTLS_MPI_CHK( mbedtls_ecp_check_pubkey( grp, P ) ); MBEDTLS_MPI_CHK( mbedtls_ecp_copy( R, P ) ); MPI_ECP_NEG( &R->Y ); } From 56cfb31dd1703cc6f607f32f5944601f7c028bee Mon Sep 17 00:00:00 2001 From: Dave Rodgman Date: Wed, 10 Aug 2022 12:21:23 +0100 Subject: [PATCH 03/14] Add missing newlines Signed-off-by: Dave Rodgman --- tests/suites/test_suite_ecdsa.data | 2 +- tests/suites/test_suite_ecdsa.function | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/tests/suites/test_suite_ecdsa.data b/tests/suites/test_suite_ecdsa.data index 7ed6fe25b4..4d59d02f64 100644 --- a/tests/suites/test_suite_ecdsa.data +++ b/tests/suites/test_suite_ecdsa.data @@ -420,4 +420,4 @@ ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2 ECDSA verify valid public key, correct signature, 32 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":32:1:0 \ No newline at end of file +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":32:1:0 diff --git a/tests/suites/test_suite_ecdsa.function b/tests/suites/test_suite_ecdsa.function index 947890a268..8f2f6b1a88 100644 --- a/tests/suites/test_suite_ecdsa.function +++ b/tests/suites/test_suite_ecdsa.function @@ -530,4 +530,4 @@ exit: mbedtls_mpi_free( &sig_r ); mbedtls_mpi_free( &sig_s ); } -/* END_CASE */ \ No newline at end of file +/* END_CASE */ From 66bcadb47dce2281be4b62617daf04e1de3c6e14 Mon Sep 17 00:00:00 2001 From: Dave Rodgman Date: Wed, 10 Aug 2022 13:31:44 +0100 Subject: [PATCH 04/14] Fix duplicate test names Signed-off-by: Dave Rodgman --- tests/suites/test_suite_ecdsa.data | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/tests/suites/test_suite_ecdsa.data b/tests/suites/test_suite_ecdsa.data index 4d59d02f64..9044d84731 100644 --- a/tests/suites/test_suite_ecdsa.data +++ b/tests/suites/test_suite_ecdsa.data @@ -370,19 +370,19 @@ ECDSA verify invalid public key, one byte of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":1:0:MBEDTLS_ERR_ECP_INVALID_KEY -ECDSA verify invalid public key, 32 bytes of data +ECDSA verify invalid public key (a), 32 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":32:0:MBEDTLS_ERR_ECP_INVALID_KEY -ECDSA verify invalid public key, 32 bytes of data +ECDSA verify invalid public key (b), 32 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"12345":"1":"1":32:0:MBEDTLS_ERR_ECP_INVALID_KEY -ECDSA verify invalid public key, 32 bytes of data +ECDSA verify invalid public key (c), 32 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"12345":"1":32:0:MBEDTLS_ERR_ECP_INVALID_KEY -ECDSA verify invalid public key, 32 bytes of data +ECDSA verify invalid public key (d), 32 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"12345":32:0:MBEDTLS_ERR_ECP_INVALID_KEY From d106308c83597a3c2f891bad4480a81c49c30b91 Mon Sep 17 00:00:00 2001 From: Dave Rodgman Date: Wed, 10 Aug 2022 13:41:11 +0100 Subject: [PATCH 05/14] Changelog for ECDSA verify fix Signed-off-by: Dave Rodgman --- ChangeLog.d/ecdsa-verify-fixes.txt | 5 +++++ 1 file changed, 5 insertions(+) create mode 100644 ChangeLog.d/ecdsa-verify-fixes.txt diff --git a/ChangeLog.d/ecdsa-verify-fixes.txt b/ChangeLog.d/ecdsa-verify-fixes.txt new file mode 100644 index 0000000000..6dbd4702e5 --- /dev/null +++ b/ChangeLog.d/ecdsa-verify-fixes.txt @@ -0,0 +1,5 @@ +Bugfix + * Fix ECDSA verification, where it was failing to validate the public key + for signatures where R == 1 and S == 1. This bug meant that it was + possible to verify such signatures with an invalid public key, in some + cases. From b44c72861faa175d3da65bd555b0dfeec6509e82 Mon Sep 17 00:00:00 2001 From: Dave Rodgman Date: Thu, 11 Aug 2022 13:47:35 +0100 Subject: [PATCH 06/14] Minor tidy-up Signed-off-by: Dave Rodgman --- tests/suites/test_suite_ecdsa.function | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/tests/suites/test_suite_ecdsa.function b/tests/suites/test_suite_ecdsa.function index 8f2f6b1a88..760890b455 100644 --- a/tests/suites/test_suite_ecdsa.function +++ b/tests/suites/test_suite_ecdsa.function @@ -504,19 +504,19 @@ void ecdsa_verify( int grp_id, char * x, char * y, char * r, char * s, int len, TEST_EQUAL( mbedtls_ecp_group_load( &ctx.grp, curve_info->grp_id ), 0 ); /* Prepare public key */ - TEST_EQUAL( mbedtls_mpi_read_string( &ctx.Q.X, 16, x ), 0 ); - TEST_EQUAL( mbedtls_mpi_read_string( &ctx.Q.Y, 16, y ), 0 ); + TEST_EQUAL( mbedtls_test_read_mpi( &ctx.Q.X, x ), 0 ); + TEST_EQUAL( mbedtls_test_read_mpi( &ctx.Q.Y, y ), 0 ); TEST_EQUAL( mbedtls_mpi_lset( &ctx.Q.Z, 1 ), 0 ); /* Prepare signature R & S */ - TEST_EQUAL( mbedtls_mpi_read_string( &sig_r, 16, r ), 0 ); - TEST_EQUAL( mbedtls_mpi_read_string( &sig_s, 16, s ), 0 ); + TEST_EQUAL( mbedtls_test_read_mpi( &sig_r, r ), 0 ); + TEST_EQUAL( mbedtls_test_read_mpi( &sig_s, s ), 0 ); /* Test whether public key has expected validity */ TEST_EQUAL( mbedtls_ecp_check_pubkey( &ctx.grp, &ctx.Q ), key_is_valid ? 0 : MBEDTLS_ERR_ECP_INVALID_KEY ); /* Verification */ - int result = mbedtls_ecdsa_verify( &ctx.grp, FUZZ_DATA, ( size_t ) len, &ctx.Q, &sig_r, &sig_s ); + int result = mbedtls_ecdsa_verify( &ctx.grp, FUZZ_DATA, (size_t)len, &ctx.Q, &sig_r, &sig_s ); TEST_EQUAL( result, expected ); From cd57a61fec176011cb9e010856a4a3ffc9938c71 Mon Sep 17 00:00:00 2001 From: Dave Rodgman Date: Thu, 18 Aug 2022 15:48:46 +0100 Subject: [PATCH 07/14] Paramaterise ecdsa_verify test case more clearly Signed-off-by: Dave Rodgman --- tests/suites/test_suite_ecdsa.data | 30 +++++++++++++------------- tests/suites/test_suite_ecdsa.function | 24 ++------------------- 2 files changed, 17 insertions(+), 37 deletions(-) diff --git a/tests/suites/test_suite_ecdsa.data b/tests/suites/test_suite_ecdsa.data index 9044d84731..d59355e17a 100644 --- a/tests/suites/test_suite_ecdsa.data +++ b/tests/suites/test_suite_ecdsa.data @@ -364,60 +364,60 @@ ecdsa_prim_test_vectors:MBEDTLS_ECP_DP_SECP521R1:"0065FDA3409451DCAB0A0EAD454951 ECDSA verify invalid public key, zero bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":0:0:MBEDTLS_ERR_ECP_INVALID_KEY +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":"":0:MBEDTLS_ERR_ECP_INVALID_KEY ECDSA verify invalid public key, one byte of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":1:0:MBEDTLS_ERR_ECP_INVALID_KEY +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":"00":0:MBEDTLS_ERR_ECP_INVALID_KEY ECDSA verify invalid public key (a), 32 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":32:0:MBEDTLS_ERR_ECP_INVALID_KEY +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":"0000000000000000000000000000000000000000000000000000000000000000":0:MBEDTLS_ERR_ECP_INVALID_KEY ECDSA verify invalid public key (b), 32 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"12345":"1":"1":32:0:MBEDTLS_ERR_ECP_INVALID_KEY +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"12345":"1":"1":"0000000000000000000000000000000000000000000000000000000000000000":0:MBEDTLS_ERR_ECP_INVALID_KEY ECDSA verify invalid public key (c), 32 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"12345":"1":32:0:MBEDTLS_ERR_ECP_INVALID_KEY +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"12345":"1":"0000000000000000000000000000000000000000000000000000000000000000":0:MBEDTLS_ERR_ECP_INVALID_KEY ECDSA verify invalid public key (d), 32 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"12345":32:0:MBEDTLS_ERR_ECP_INVALID_KEY +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"12345":"0000000000000000000000000000000000000000000000000000000000000000":0:MBEDTLS_ERR_ECP_INVALID_KEY ECDSA verify valid public key, invalid signature, 0 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"0":"1":0:1:MBEDTLS_ERR_ECP_VERIFY_FAILED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"0":"1":"":1:MBEDTLS_ERR_ECP_VERIFY_FAILED ECDSA verify valid public key, invalid signature, 1 byte of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"0":"1":1:1:MBEDTLS_ERR_ECP_VERIFY_FAILED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"0":"1":"00":1:MBEDTLS_ERR_ECP_VERIFY_FAILED ECDSA verify valid public key, invalid signature, 32 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141":"12":32:1:MBEDTLS_ERR_ECP_VERIFY_FAILED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141":"12":"0000000000000000000000000000000000000000000000000000000000000000":1:MBEDTLS_ERR_ECP_VERIFY_FAILED ECDSA verify valid public key, valid/incorrect signature, 0 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"84eead3fb3cdbdac882412af64cc125b6784690bebf575f1c32162ab65080037":0:1:MBEDTLS_ERR_ECP_VERIFY_FAILED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"84eead3fb3cdbdac882412af64cc125b6784690bebf575f1c32162ab65080037":"":1:MBEDTLS_ERR_ECP_VERIFY_FAILED ECDSA verify valid public key, valid/incorrect signature, 1 byte of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"84eead3fb3cdbdac882412af64cc125b6784690bebf575f1c32162ab65080037":1:1:MBEDTLS_ERR_ECP_VERIFY_FAILED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"84eead3fb3cdbdac882412af64cc125b6784690bebf575f1c32162ab65080037":"00":1:MBEDTLS_ERR_ECP_VERIFY_FAILED ECDSA verify valid public key, valid/incorrect signature, 32 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"84eead3fb3cdbdac882412af64cc125b6784690bebf575f1c32162ab65080037":32:1:MBEDTLS_ERR_ECP_VERIFY_FAILED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"84eead3fb3cdbdac882412af64cc125b6784690bebf575f1c32162ab65080037":"0000000000000000000000000000000000000000000000000000000000000000":1:MBEDTLS_ERR_ECP_VERIFY_FAILED ECDSA verify valid public key, correct signature, 0 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":0:1:0 +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":"":1:0 ECDSA verify valid public key, correct signature, 1 byte of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":1:1:0 +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":"00":1:0 ECDSA verify valid public key, correct signature, 32 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":32:1:0 +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":"0000000000000000000000000000000000000000000000000000000000000000":1:0 diff --git a/tests/suites/test_suite_ecdsa.function b/tests/suites/test_suite_ecdsa.function index 760890b455..50a547d39d 100644 --- a/tests/suites/test_suite_ecdsa.function +++ b/tests/suites/test_suite_ecdsa.function @@ -468,28 +468,8 @@ exit: /* END_CASE */ /* BEGIN_CASE */ -void ecdsa_verify( int grp_id, char * x, char * y, char * r, char * s, int len, int key_is_valid, int expected ) +void ecdsa_verify( int grp_id, char * x, char * y, char * r, char * s, data_t * content, int key_is_valid, int expected ) { - uint8_t FUZZ_DATA[] = { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 - }; - mbedtls_ecdsa_context ctx; mbedtls_mpi sig_r, sig_s; const mbedtls_ecp_curve_info *curve_info; @@ -516,7 +496,7 @@ void ecdsa_verify( int grp_id, char * x, char * y, char * r, char * s, int len, TEST_EQUAL( mbedtls_ecp_check_pubkey( &ctx.grp, &ctx.Q ), key_is_valid ? 0 : MBEDTLS_ERR_ECP_INVALID_KEY ); /* Verification */ - int result = mbedtls_ecdsa_verify( &ctx.grp, FUZZ_DATA, (size_t)len, &ctx.Q, &sig_r, &sig_s ); + int result = mbedtls_ecdsa_verify( &ctx.grp, content->x, content->len, &ctx.Q, &sig_r, &sig_s ); TEST_EQUAL( result, expected ); From b153c6c31be425220526f5b5c42b3a943c21a0e2 Mon Sep 17 00:00:00 2001 From: Dave Rodgman Date: Thu, 18 Aug 2022 16:05:49 +0100 Subject: [PATCH 08/14] Improve test descriptions Signed-off-by: Dave Rodgman --- tests/suites/test_suite_ecdsa.data | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) diff --git a/tests/suites/test_suite_ecdsa.data b/tests/suites/test_suite_ecdsa.data index d59355e17a..f07483da13 100644 --- a/tests/suites/test_suite_ecdsa.data +++ b/tests/suites/test_suite_ecdsa.data @@ -362,62 +362,62 @@ ECDSA private parameter greater than n p521 depends_on:MBEDTLS_ECP_DP_SECP521R1_ENABLED ecdsa_prim_test_vectors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verify invalid public key, zero bytes of data +ECDSA verify invalid pub key (not on curve), zero bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":"":0:MBEDTLS_ERR_ECP_INVALID_KEY -ECDSA verify invalid public key, one byte of data +ECDSA verify invalid pub key (not on curve), one byte of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":"00":0:MBEDTLS_ERR_ECP_INVALID_KEY -ECDSA verify invalid public key (a), 32 bytes of data +ECDSA verify invalid pub key (not on curve), r=1, s=1 depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":"0000000000000000000000000000000000000000000000000000000000000000":0:MBEDTLS_ERR_ECP_INVALID_KEY -ECDSA verify invalid public key (b), 32 bytes of data +ECDSA verify invalid pub key (also not on curve), r=1, s=1 depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"12345":"1":"1":"0000000000000000000000000000000000000000000000000000000000000000":0:MBEDTLS_ERR_ECP_INVALID_KEY -ECDSA verify invalid public key (c), 32 bytes of data +ECDSA verify invalid pub key (not on curve), r=12345, s=1 depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"12345":"1":"0000000000000000000000000000000000000000000000000000000000000000":0:MBEDTLS_ERR_ECP_INVALID_KEY -ECDSA verify invalid public key (d), 32 bytes of data +ECDSA verify invalid pub key (not on curve), r=1, s=12345 depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"12345":"0000000000000000000000000000000000000000000000000000000000000000":0:MBEDTLS_ERR_ECP_INVALID_KEY -ECDSA verify valid public key, invalid signature, 0 bytes of data +ECDSA verify valid pub key, invalid sig (r=0), 0 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"0":"1":"":1:MBEDTLS_ERR_ECP_VERIFY_FAILED -ECDSA verify valid public key, invalid signature, 1 byte of data +ECDSA verify valid pub key, invalid sig (r=0), 1 byte of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"0":"1":"00":1:MBEDTLS_ERR_ECP_VERIFY_FAILED -ECDSA verify valid public key, invalid signature, 32 bytes of data +ECDSA verify valid pub key, invalid sig (r>n-1), 32 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141":"12":"0000000000000000000000000000000000000000000000000000000000000000":1:MBEDTLS_ERR_ECP_VERIFY_FAILED -ECDSA verify valid public key, valid/incorrect signature, 0 bytes of data +ECDSA verify valid pub key, valid/incorrect sig, 0 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"84eead3fb3cdbdac882412af64cc125b6784690bebf575f1c32162ab65080037":"":1:MBEDTLS_ERR_ECP_VERIFY_FAILED -ECDSA verify valid public key, valid/incorrect signature, 1 byte of data +ECDSA verify valid pub key, valid/incorrect sig, 1 byte of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"84eead3fb3cdbdac882412af64cc125b6784690bebf575f1c32162ab65080037":"00":1:MBEDTLS_ERR_ECP_VERIFY_FAILED -ECDSA verify valid public key, valid/incorrect signature, 32 bytes of data +ECDSA verify valid pub key, valid/incorrect sig, 32 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"84eead3fb3cdbdac882412af64cc125b6784690bebf575f1c32162ab65080037":"0000000000000000000000000000000000000000000000000000000000000000":1:MBEDTLS_ERR_ECP_VERIFY_FAILED -ECDSA verify valid public key, correct signature, 0 bytes of data +ECDSA verify valid public key, correct sig, 0 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":"":1:0 -ECDSA verify valid public key, correct signature, 1 byte of data +ECDSA verify valid pub key, correct sig, 1 byte of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":"00":1:0 -ECDSA verify valid public key, correct signature, 32 bytes of data +ECDSA verify valid pub key, correct sig, 32 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":"0000000000000000000000000000000000000000000000000000000000000000":1:0 From 34ff6a7a31d088a1f47d993de3774576105b5fbe Mon Sep 17 00:00:00 2001 From: Dave Rodgman Date: Fri, 19 Aug 2022 11:08:07 +0100 Subject: [PATCH 09/14] Correct documentation for mbedtls_ecdsa_verify Signed-off-by: Dave Rodgman --- include/mbedtls/ecdsa.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/include/mbedtls/ecdsa.h b/include/mbedtls/ecdsa.h index 71b73eee54..967f07b9b5 100644 --- a/include/mbedtls/ecdsa.h +++ b/include/mbedtls/ecdsa.h @@ -245,10 +245,8 @@ int mbedtls_ecdsa_sign_det_ext( mbedtls_ecp_group *grp, mbedtls_mpi *r, * This must be initialized. * * \return \c 0 on success. - * \return #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if the signature - * is invalid. * \return An \c MBEDTLS_ERR_ECP_XXX or \c MBEDTLS_MPI_XXX - * error code on failure for any other reason. + * error code on failure. */ int mbedtls_ecdsa_verify( mbedtls_ecp_group *grp, const unsigned char *buf, size_t blen, From 5d7a235efe9acf6b591e94aac650e0f5e22efc6c Mon Sep 17 00:00:00 2001 From: Dave Rodgman Date: Fri, 19 Aug 2022 11:26:32 +0100 Subject: [PATCH 10/14] Simplify test for ecdsa_verify Signed-off-by: Dave Rodgman --- tests/suites/test_suite_ecdsa.data | 30 +++++++++++++------------- tests/suites/test_suite_ecdsa.function | 11 +++------- 2 files changed, 18 insertions(+), 23 deletions(-) diff --git a/tests/suites/test_suite_ecdsa.data b/tests/suites/test_suite_ecdsa.data index f07483da13..50411e9b17 100644 --- a/tests/suites/test_suite_ecdsa.data +++ b/tests/suites/test_suite_ecdsa.data @@ -364,60 +364,60 @@ ecdsa_prim_test_vectors:MBEDTLS_ECP_DP_SECP521R1:"0065FDA3409451DCAB0A0EAD454951 ECDSA verify invalid pub key (not on curve), zero bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":"":0:MBEDTLS_ERR_ECP_INVALID_KEY +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":"":MBEDTLS_ERR_ECP_INVALID_KEY ECDSA verify invalid pub key (not on curve), one byte of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":"00":0:MBEDTLS_ERR_ECP_INVALID_KEY +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":"00":MBEDTLS_ERR_ECP_INVALID_KEY ECDSA verify invalid pub key (not on curve), r=1, s=1 depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":"0000000000000000000000000000000000000000000000000000000000000000":0:MBEDTLS_ERR_ECP_INVALID_KEY +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"1":"0000000000000000000000000000000000000000000000000000000000000000":MBEDTLS_ERR_ECP_INVALID_KEY ECDSA verify invalid pub key (also not on curve), r=1, s=1 depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"12345":"1":"1":"0000000000000000000000000000000000000000000000000000000000000000":0:MBEDTLS_ERR_ECP_INVALID_KEY +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"12345":"1":"1":"0000000000000000000000000000000000000000000000000000000000000000":MBEDTLS_ERR_ECP_INVALID_KEY ECDSA verify invalid pub key (not on curve), r=12345, s=1 depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"12345":"1":"0000000000000000000000000000000000000000000000000000000000000000":0:MBEDTLS_ERR_ECP_INVALID_KEY +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"12345":"1":"0000000000000000000000000000000000000000000000000000000000000000":MBEDTLS_ERR_ECP_INVALID_KEY ECDSA verify invalid pub key (not on curve), r=1, s=12345 depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"12345":"0000000000000000000000000000000000000000000000000000000000000000":0:MBEDTLS_ERR_ECP_INVALID_KEY +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"1":"2":"1":"12345":"0000000000000000000000000000000000000000000000000000000000000000":MBEDTLS_ERR_ECP_INVALID_KEY ECDSA verify valid pub key, invalid sig (r=0), 0 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"0":"1":"":1:MBEDTLS_ERR_ECP_VERIFY_FAILED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"0":"1":"":MBEDTLS_ERR_ECP_VERIFY_FAILED ECDSA verify valid pub key, invalid sig (r=0), 1 byte of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"0":"1":"00":1:MBEDTLS_ERR_ECP_VERIFY_FAILED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"0":"1":"00":MBEDTLS_ERR_ECP_VERIFY_FAILED ECDSA verify valid pub key, invalid sig (r>n-1), 32 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141":"12":"0000000000000000000000000000000000000000000000000000000000000000":1:MBEDTLS_ERR_ECP_VERIFY_FAILED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141":"12":"0000000000000000000000000000000000000000000000000000000000000000":MBEDTLS_ERR_ECP_VERIFY_FAILED ECDSA verify valid pub key, valid/incorrect sig, 0 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"84eead3fb3cdbdac882412af64cc125b6784690bebf575f1c32162ab65080037":"":1:MBEDTLS_ERR_ECP_VERIFY_FAILED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"84eead3fb3cdbdac882412af64cc125b6784690bebf575f1c32162ab65080037":"":MBEDTLS_ERR_ECP_VERIFY_FAILED ECDSA verify valid pub key, valid/incorrect sig, 1 byte of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"84eead3fb3cdbdac882412af64cc125b6784690bebf575f1c32162ab65080037":"00":1:MBEDTLS_ERR_ECP_VERIFY_FAILED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"84eead3fb3cdbdac882412af64cc125b6784690bebf575f1c32162ab65080037":"00":MBEDTLS_ERR_ECP_VERIFY_FAILED ECDSA verify valid pub key, valid/incorrect sig, 32 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"84eead3fb3cdbdac882412af64cc125b6784690bebf575f1c32162ab65080037":"0000000000000000000000000000000000000000000000000000000000000000":1:MBEDTLS_ERR_ECP_VERIFY_FAILED +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"84eead3fb3cdbdac882412af64cc125b6784690bebf575f1c32162ab65080037":"0000000000000000000000000000000000000000000000000000000000000000":MBEDTLS_ERR_ECP_VERIFY_FAILED ECDSA verify valid public key, correct sig, 0 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":"":1:0 +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":"":0 ECDSA verify valid pub key, correct sig, 1 byte of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":"00":1:0 +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":"00":0 ECDSA verify valid pub key, correct sig, 32 bytes of data depends_on:MBEDTLS_ECP_DP_SECP256K1_ENABLED -ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":"0000000000000000000000000000000000000000000000000000000000000000":1:0 +ecdsa_verify:MBEDTLS_ECP_DP_SECP256K1:"79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798":"483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8":"ed3bace23c5e17652e174c835fb72bf53ee306b3406a26890221b4cef7500f88":"c9cc1ba95156bc103055a5d7946f3a3ae7f0657d1e53f1d5c2c9782950aa69b":"0000000000000000000000000000000000000000000000000000000000000000":0 diff --git a/tests/suites/test_suite_ecdsa.function b/tests/suites/test_suite_ecdsa.function index 50a547d39d..b1a1611fb4 100644 --- a/tests/suites/test_suite_ecdsa.function +++ b/tests/suites/test_suite_ecdsa.function @@ -468,7 +468,7 @@ exit: /* END_CASE */ /* BEGIN_CASE */ -void ecdsa_verify( int grp_id, char * x, char * y, char * r, char * s, data_t * content, int key_is_valid, int expected ) +void ecdsa_verify( int grp_id, char * x, char * y, char * r, char * s, data_t * content, int expected ) { mbedtls_ecdsa_context ctx; mbedtls_mpi sig_r, sig_s; @@ -493,18 +493,13 @@ void ecdsa_verify( int grp_id, char * x, char * y, char * r, char * s, data_t * TEST_EQUAL( mbedtls_test_read_mpi( &sig_s, s ), 0 ); /* Test whether public key has expected validity */ - TEST_EQUAL( mbedtls_ecp_check_pubkey( &ctx.grp, &ctx.Q ), key_is_valid ? 0 : MBEDTLS_ERR_ECP_INVALID_KEY ); + TEST_EQUAL( mbedtls_ecp_check_pubkey( &ctx.grp, &ctx.Q ), + expected == MBEDTLS_ERR_ECP_INVALID_KEY ? MBEDTLS_ERR_ECP_INVALID_KEY : 0 ); /* Verification */ int result = mbedtls_ecdsa_verify( &ctx.grp, content->x, content->len, &ctx.Q, &sig_r, &sig_s ); TEST_EQUAL( result, expected ); - - if ( !key_is_valid ) { - /* Invalid public key must always fail */ - TEST_ASSERT( result != 0 ); - } - exit: mbedtls_ecdsa_free( &ctx ); mbedtls_mpi_free( &sig_r ); From 683850b416bb7dbf6ecf102274c67e5c13ea5076 Mon Sep 17 00:00:00 2001 From: Dave Rodgman Date: Thu, 27 Oct 2022 20:24:46 +0100 Subject: [PATCH 11/14] Update tests/suites/test_suite_ecdsa.function Co-authored-by: Gilles Peskine Signed-off-by: Dave Rodgman --- tests/suites/test_suite_ecdsa.function | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/tests/suites/test_suite_ecdsa.function b/tests/suites/test_suite_ecdsa.function index b1a1611fb4..d5959d5dc4 100644 --- a/tests/suites/test_suite_ecdsa.function +++ b/tests/suites/test_suite_ecdsa.function @@ -479,9 +479,7 @@ void ecdsa_verify( int grp_id, char * x, char * y, char * r, char * s, data_t * mbedtls_mpi_init( &sig_s ); /* Prepare ECP group context */ - curve_info = mbedtls_ecp_curve_info_from_grp_id( grp_id ); - TEST_ASSERT( curve_info != NULL ); - TEST_EQUAL( mbedtls_ecp_group_load( &ctx.grp, curve_info->grp_id ), 0 ); + TEST_EQUAL( mbedtls_ecp_group_load( &ctx.grp, grp_id ), 0 ); /* Prepare public key */ TEST_EQUAL( mbedtls_test_read_mpi( &ctx.Q.X, x ), 0 ); From 5d13e5e568aed78745b0e2d4552e25f65c369c6f Mon Sep 17 00:00:00 2001 From: Dave Rodgman Date: Thu, 27 Oct 2022 20:34:21 +0100 Subject: [PATCH 12/14] Improve changelog for ECDSA verify fix Signed-off-by: Dave Rodgman --- ChangeLog.d/ecdsa-verify-fixes.txt | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/ChangeLog.d/ecdsa-verify-fixes.txt b/ChangeLog.d/ecdsa-verify-fixes.txt index 6dbd4702e5..166f91ecb1 100644 --- a/ChangeLog.d/ecdsa-verify-fixes.txt +++ b/ChangeLog.d/ecdsa-verify-fixes.txt @@ -1,5 +1,5 @@ Bugfix - * Fix ECDSA verification, where it was failing to validate the public key - for signatures where R == 1 and S == 1. This bug meant that it was - possible to verify such signatures with an invalid public key, in some - cases. + * Fix ECDSA verification, where it was not always validating the + public key. This bug meant that it was possible to verify a + signature with an invalid public key, in some cases. Reported by + Guido Vranken in #4420. From ce48c92c6c2291faddf28409341d38820faf7b75 Mon Sep 17 00:00:00 2001 From: Dave Rodgman Date: Thu, 27 Oct 2022 20:36:47 +0100 Subject: [PATCH 13/14] Credit Cryptofuzz in the changelog Signed-off-by: Dave Rodgman --- ChangeLog.d/ecdsa-verify-fixes.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/ChangeLog.d/ecdsa-verify-fixes.txt b/ChangeLog.d/ecdsa-verify-fixes.txt index 166f91ecb1..b41b0461ab 100644 --- a/ChangeLog.d/ecdsa-verify-fixes.txt +++ b/ChangeLog.d/ecdsa-verify-fixes.txt @@ -2,4 +2,4 @@ Bugfix * Fix ECDSA verification, where it was not always validating the public key. This bug meant that it was possible to verify a signature with an invalid public key, in some cases. Reported by - Guido Vranken in #4420. + Guido Vranken using Cryptofuzz in #4420. From f00466e2e06b18f12b790d8ac69f138742c6dc54 Mon Sep 17 00:00:00 2001 From: Dave Rodgman Date: Fri, 28 Oct 2022 09:22:28 +0100 Subject: [PATCH 14/14] Build fix - remove line of dead code Signed-off-by: Dave Rodgman --- tests/suites/test_suite_ecdsa.function | 1 - 1 file changed, 1 deletion(-) diff --git a/tests/suites/test_suite_ecdsa.function b/tests/suites/test_suite_ecdsa.function index d5959d5dc4..28351e229e 100644 --- a/tests/suites/test_suite_ecdsa.function +++ b/tests/suites/test_suite_ecdsa.function @@ -472,7 +472,6 @@ void ecdsa_verify( int grp_id, char * x, char * y, char * r, char * s, data_t * { mbedtls_ecdsa_context ctx; mbedtls_mpi sig_r, sig_s; - const mbedtls_ecp_curve_info *curve_info; mbedtls_ecdsa_init( &ctx ); mbedtls_mpi_init( &sig_r );