Re: [PATCH v2 11/21] appended signatures: verification tests

[sudhakar <sudhakar@linux.ibm.com>]

Hi Daniel,

Thank you for your valuable review.

On 2025-05-28 22:59, Daniel Kiper wrote:
> On Thu, Mar 27, 2025 at 01:02:32AM +0530, Sudhakar Kuppusamy wrote:
> 
> [...]
> 
>> diff --git a/grub-core/tests/appended_signatures.h 
>> b/grub-core/tests/appended_signatures.h
>> new file mode 100644
>> index 000000000..c6aa12d86
>> --- /dev/null
>> +++ b/grub-core/tests/appended_signatures.h
>> @@ -0,0 +1,975 @@
>> +unsigned char certificate_der[] = {
>> +  0x30, 0x82, 0x05, 0x5d, 0x30, 0x82, 0x03, 0x45, 0xa0, 0x03, 0x02, 
>> 0x01,
>> +  0x02, 0x02, 0x14, 0x5b, 0x5e, 0x59, 0xf2, 0x5f, 0x75, 0x4c, 0x8e, 
>> 0xc5,
>> +  0x3a, 0x91, 0x07, 0xe9, 0xe7, 0x6d, 0x3c, 0xd0, 0x7f, 0x92, 0x03, 
>> 0x30,
>> +  0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 
>> 0x0b,
>> +  0x05, 0x00, 0x30, 0x3d, 0x31, 0x3b, 0x30, 0x39, 0x06, 0x03, 0x55, 
>> 0x04,
>> +  0x03, 0x0c, 0x32, 0x47, 0x72, 0x75, 0x62, 0x20, 0x41, 0x70, 0x70, 
>> 0x65,
>> +  0x6e, 0x64, 0x65, 0x64, 0x20, 0x53, 0x69, 0x67, 0x6e, 0x61, 0x74, 
>> 0x75,
>> +  0x72, 0x65, 0x20, 0x54, 0x65, 0x73, 0x74, 0x20, 0x43, 0x65, 0x72, 
>> 0x74,
>> +  0x69, 0x66, 0x69, 0x63, 0x61, 0x74, 0x65, 0x20, 0x41, 0x75, 0x74, 
>> 0x68,
>> +  0x6f, 0x72, 0x69, 0x74, 0x79, 0x30, 0x20, 0x17, 0x0d, 0x32, 0x31, 
>> 0x30,
>> +  0x36, 0x32, 0x39, 0x30, 0x38, 0x33, 0x36, 0x31, 0x33, 0x5a, 0x18, 
>> 0x0f,
>> +  0x32, 0x31, 0x32, 0x31, 0x30, 0x36, 0x30, 0x35, 0x30, 0x38, 0x33, 
>> 0x36,
>> +  0x31, 0x33, 0x5a, 0x30, 0x33, 0x31, 0x31, 0x30, 0x2f, 0x06, 0x03, 
>> 0x55,
>> +  0x04, 0x03, 0x0c, 0x28, 0x47, 0x72, 0x75, 0x62, 0x20, 0x41, 0x70, 
>> 0x70,
>> +  0x65, 0x6e, 0x64, 0x65, 0x64, 0x20, 0x53, 0x69, 0x67, 0x6e, 0x61, 
>> 0x74,
>> +  0x75, 0x72, 0x65, 0x20, 0x54, 0x65, 0x73, 0x74, 0x20, 0x53, 0x69, 
>> 0x67,
>> +  0x6e, 0x69, 0x6e, 0x67, 0x20, 0x4b, 0x65, 0x79, 0x30, 0x82, 0x02, 
>> 0x22,
>> +  0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 
>> 0x01,
>> +  0x01, 0x05, 0x00, 0x03, 0x82, 0x02, 0x0f, 0x00, 0x30, 0x82, 0x02, 
>> 0x0a,
>> +  0x02, 0x82, 0x02, 0x01, 0x00, 0xb9, 0x09, 0xb2, 0xf6, 0x24, 0x34, 
>> 0xdc,
>> +  0x62, 0xe6, 0x4e, 0xee, 0x04, 0xdb, 0x29, 0xdc, 0x94, 0xcc, 0xee, 
>> 0x8a,
>> +  0x5b, 0xc3, 0x9e, 0x06, 0xba, 0xa7, 0x9b, 0xa4, 0x5f, 0x15, 0x59, 
>> 0x8e,
>> +  0xb8, 0x6e, 0x3c, 0xeb, 0x2e, 0xf2, 0xac, 0x21, 0x42, 0xbd, 0x30, 
>> 0xa1,
>> +  0x39, 0xe5, 0xb9, 0x4f, 0xa0, 0x53, 0xd5, 0x42, 0xdc, 0x8a, 0x87, 
>> 0x30,
>> +  0x38, 0x93, 0x44, 0x80, 0x3b, 0x1a, 0x7e, 0x9e, 0x8e, 0x3e, 0xea, 
>> 0x45,
>> +  0xa0, 0x11, 0x8b, 0xfb, 0x78, 0xe4, 0xbc, 0x65, 0x6b, 0x73, 0xea, 
>> 0x6e,
>> +  0xdf, 0x7c, 0x5b, 0x63, 0x7e, 0x5b, 0x0a, 0x1c, 0xe6, 0x76, 0x19, 
>> 0xb5,
>> +  0x01, 0xde, 0xf6, 0x65, 0x51, 0x30, 0x0a, 0x56, 0x69, 0x69, 0xe8, 
>> 0x20,
>> +  0xf9, 0x13, 0xf1, 0xbf, 0x6f, 0xdd, 0xce, 0x94, 0x96, 0x6e, 0x63, 
>> 0xd6,
>> +  0xfa, 0xa4, 0x91, 0x5f, 0xb3, 0x9c, 0xc7, 0xfa, 0xa9, 0xff, 0x66, 
>> 0x5f,
>> +  0xf3, 0xab, 0x5e, 0xdf, 0x4e, 0xca, 0x11, 0xcf, 0xbf, 0xf8, 0xad, 
>> 0x65,
>> +  0xb1, 0x49, 0x8b, 0xe9, 0x2a, 0xad, 0x7d, 0xf3, 0x0b, 0xfa, 0x5b, 
>> 0x6a,
>> +  0x6a, 0x20, 0x12, 0x77, 0xef, 0x4b, 0xb6, 0xbe, 0x92, 0xba, 0x14, 
>> 0x9c,
>> +  0x5e, 0xea, 0xdc, 0x56, 0x6d, 0x92, 0xd3, 0x64, 0x22, 0xf6, 0x12, 
>> 0xe8,
>> +  0x7d, 0x5e, 0x9c, 0xd6, 0xf9, 0x75, 0x68, 0x7f, 0x8f, 0xd3, 0x6e, 
>> 0x05,
>> +  0x94, 0x91, 0x4f, 0xa1, 0xd6, 0x50, 0x72, 0x3b, 0x11, 0x1f, 0x28, 
>> 0x13,
>> +  0xe8, 0x25, 0x6b, 0xdf, 0xff, 0x72, 0x46, 0x25, 0xe9, 0x05, 0x6f, 
>> 0x02,
>> +  0xc7, 0x1e, 0xc9, 0xcf, 0x99, 0xe9, 0xa7, 0xe2, 0xae, 0xbc, 0xc1, 
>> 0x22,
>> +  0x32, 0x73, 0x2d, 0xa3, 0x70, 0x8f, 0xa7, 0x8d, 0xbf, 0x5f, 0x74, 
>> 0x05,
>> +  0x1b, 0x5e, 0xfe, 0x97, 0x3c, 0xe7, 0x3b, 0x86, 0x0d, 0xf6, 0x38, 
>> 0xdb,
>> +  0xd2, 0x39, 0x47, 0x82, 0x00, 0x44, 0x6c, 0x7b, 0x40, 0x24, 0x0b, 
>> 0x3a,
>> +  0xd4, 0x19, 0x31, 0xba, 0x4e, 0x8e, 0xa3, 0x33, 0xa6, 0x78, 0xef, 
>> 0x72,
>> +  0x9f, 0x06, 0x37, 0x01, 0x9b, 0x79, 0x0d, 0x04, 0xbf, 0xba, 0xd5, 
>> 0x1f,
>> +  0x27, 0xdc, 0x85, 0xbb, 0xef, 0xd2, 0x60, 0xda, 0xa0, 0x3f, 0x66, 
>> 0xce,
>> +  0x9f, 0xa2, 0x7e, 0xa8, 0x8d, 0xee, 0x14, 0x4b, 0xcb, 0x93, 0xf1, 
>> 0x38,
>> +  0xac, 0x4f, 0xd8, 0x29, 0xf3, 0x6f, 0xd4, 0xfd, 0x4d, 0x34, 0x77, 
>> 0x58,
>> +  0x99, 0xdb, 0x16, 0xc1, 0xd0, 0xc7, 0x43, 0x41, 0x70, 0xc4, 0xad, 
>> 0x01,
>> +  0x29, 0x65, 0x22, 0x43, 0x00, 0x6f, 0xb3, 0x00, 0x27, 0x38, 0xc1, 
>> 0x4f,
>> +  0xda, 0x28, 0x96, 0x42, 0xdc, 0xbc, 0x3e, 0x34, 0x8e, 0x14, 0xb8, 
>> 0xf3,
>> +  0x86, 0x4a, 0xea, 0x16, 0x90, 0xf9, 0x0e, 0x9e, 0x8f, 0x66, 0x0c, 
>> 0xbf,
>> +  0x29, 0xd3, 0x8f, 0xfc, 0x4d, 0x38, 0x68, 0xe2, 0xe7, 0x64, 0x32, 
>> 0x47,
>> +  0xdd, 0x56, 0xc9, 0xe4, 0x47, 0x9f, 0x18, 0x89, 0xfc, 0x30, 0x7a, 
>> 0xae,
>> +  0x63, 0xe4, 0xec, 0x93, 0x04, 0xd4, 0x61, 0xe7, 0xbf, 0x0a, 0x06, 
>> 0x29,
>> +  0xc2, 0xa6, 0xd5, 0x53, 0x5d, 0x65, 0x6d, 0x4a, 0xd0, 0xb7, 0x68, 
>> 0x4d,
>> +  0x46, 0x0a, 0xb5, 0xff, 0x52, 0x5e, 0x92, 0x7e, 0x75, 0x08, 0xa4, 
>> 0x63,
>> +  0x0a, 0x6c, 0x31, 0x7a, 0xaa, 0x0c, 0x52, 0xf4, 0x2e, 0xcd, 0x08, 
>> 0xeb,
>> +  0xb3, 0xbd, 0xad, 0x8b, 0x8b, 0x9b, 0x8d, 0x71, 0x42, 0x30, 0x8e, 
>> 0xc7,
>> +  0xfd, 0xec, 0xb7, 0xe6, 0x26, 0x96, 0xf2, 0x74, 0x1b, 0x78, 0x95, 
>> 0x22,
>> +  0x14, 0xf3, 0xc9, 0xd3, 0x79, 0x11, 0xd9, 0xb7, 0x4d, 0x0d, 0x61, 
>> 0x60,
>> +  0x5c, 0x47, 0x50, 0xf3, 0xca, 0x84, 0x4c, 0x5c, 0x30, 0x2c, 0x6a, 
>> 0x18,
>> +  0x26, 0xb0, 0xf3, 0xd1, 0x15, 0x19, 0x39, 0xc3, 0x23, 0x13, 0x0f, 
>> 0x9c,
>> +  0x97, 0x2b, 0x97, 0x93, 0xf9, 0xf8, 0x18, 0x9b, 0x4a, 0x4d, 0xd6, 
>> 0xd3,
>> +  0xf5, 0x02, 0x03, 0x01, 0x00, 0x01, 0xa3, 0x5d, 0x30, 0x5b, 0x30, 
>> 0x0c,
>> +  0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x02, 0x30, 
>> 0x00,
>> +  0x30, 0x0b, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x04, 0x04, 0x03, 0x02, 
>> 0x07,
>> +  0x80, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, 0x04, 
>> 0x14,
>> +  0x8f, 0xba, 0x8b, 0xf5, 0xf4, 0x77, 0xb2, 0xa4, 0x19, 0xef, 0x43, 
>> 0xb1,
>> +  0x8b, 0x03, 0x4b, 0x45, 0x47, 0xb5, 0x2a, 0x48, 0x30, 0x1f, 0x06, 
>> 0x03,
>> +  0x55, 0x1d, 0x23, 0x04, 0x18, 0x30, 0x16, 0x80, 0x14, 0x59, 0x1c, 
>> 0xb5,
>> +  0x52, 0x62, 0x83, 0x05, 0x3b, 0x41, 0x4c, 0x63, 0x4d, 0x5b, 0xf4, 
>> 0x8c,
>> +  0xe6, 0xd7, 0xda, 0x87, 0x54, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 
>> 0x48,
>> +  0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b, 0x05, 0x00, 0x03, 0x82, 0x02, 
>> 0x01,
>> +  0x00, 0x36, 0x2d, 0x0a, 0xcb, 0x49, 0x54, 0x75, 0xd7, 0xca, 0x21, 
>> 0x86,
>> +  0xae, 0x40, 0x0f, 0x63, 0x10, 0x35, 0xfd, 0xbc, 0xba, 0x28, 0x31, 
>> 0x33,
>> +  0x07, 0x08, 0x64, 0x03, 0x6c, 0xd3, 0xd5, 0xf7, 0xb7, 0x79, 0x11, 
>> 0x0c,
>> +  0xa8, 0x9e, 0xfd, 0x34, 0xa2, 0xba, 0x77, 0x15, 0x15, 0x2d, 0x2c, 
>> 0x96,
>> +  0xae, 0x47, 0xbb, 0x82, 0x89, 0x09, 0x7f, 0xd1, 0x95, 0x69, 0x9b, 
>> 0xfe,
>> +  0xd7, 0x6f, 0x4e, 0x68, 0xf6, 0xe7, 0x5f, 0x54, 0xa1, 0x3a, 0xeb, 
>> 0xa4,
>> +  0xbf, 0x7a, 0xb6, 0x7f, 0xaa, 0xd8, 0xd7, 0x99, 0xcb, 0xae, 0x88, 
>> 0x6d,
>> +  0x7a, 0xf3, 0xfa, 0x9e, 0x44, 0x2f, 0x30, 0xa8, 0xe6, 0xb9, 0x75, 
>> 0xa0,
>> +  0x82, 0xd6, 0xb0, 0xe3, 0x03, 0xb3, 0x12, 0xa3, 0xdc, 0xb9, 0x4d, 
>> 0x93,
>> +  0xd4, 0x30, 0xea, 0xce, 0x96, 0x92, 0x07, 0xf8, 0xba, 0xe4, 0x0f, 
>> 0x41,
>> +  0xe3, 0x04, 0xaa, 0x8c, 0x07, 0x1a, 0x34, 0x60, 0xfc, 0xc0, 0x05, 
>> 0xd2,
>> +  0x5a, 0xa8, 0x66, 0xef, 0xe0, 0x94, 0xc5, 0x2f, 0x0f, 0xff, 0xdc, 
>> 0x70,
>> +  0xfb, 0xe2, 0x9d, 0x61, 0x51, 0x25, 0x02, 0xff, 0x4b, 0x69, 0xfd, 
>> 0x66,
>> +  0xb9, 0xeb, 0x0c, 0xc8, 0x50, 0xd3, 0xb1, 0x08, 0x1e, 0x09, 0x54, 
>> 0x87,
>> +  0xe8, 0xa3, 0x4b, 0xef, 0x0c, 0x32, 0x0a, 0x6c, 0xec, 0x27, 0x22, 
>> 0xba,
>> +  0x7f, 0xdc, 0x52, 0x27, 0x31, 0x14, 0x9a, 0xa8, 0xf7, 0xf9, 0xeb, 
>> 0xc8,
>> +  0xb5, 0x8d, 0x12, 0xed, 0x94, 0xab, 0x3d, 0x9a, 0xfb, 0x4e, 0x04, 
>> 0x05,
>> +  0xd2, 0x3c, 0x7c, 0x8a, 0xed, 0x46, 0x1b, 0x7c, 0xb5, 0x6c, 0x40, 
>> 0xb8,
>> +  0xc1, 0xbf, 0xb0, 0xd2, 0x93, 0x8e, 0xa8, 0x0f, 0xde, 0x78, 0xf3, 
>> 0x8c,
>> +  0xd8, 0x9f, 0xf8, 0xdc, 0xa1, 0x23, 0x20, 0x40, 0x17, 0xb4, 0xdb, 
>> 0xb7,
>> +  0x09, 0x74, 0xa7, 0x80, 0xc2, 0x12, 0xd9, 0x76, 0x79, 0x5b, 0x71, 
>> 0xa9,
>> +  0x6c, 0xd4, 0x57, 0x48, 0xe8, 0xfe, 0xc5, 0xc2, 0x6e, 0xe7, 0x83, 
>> 0x5a,
>> +  0x07, 0xf0, 0x33, 0xc1, 0xc1, 0x1d, 0x34, 0xd4, 0xc8, 0xb0, 0xb7, 
>> 0xdb,
>> +  0xeb, 0xe9, 0xe3, 0x59, 0xdc, 0x7f, 0x36, 0x58, 0xa9, 0xb8, 0x52, 
>> 0xdd,
>> +  0xf9, 0xfd, 0x1c, 0x22, 0x2f, 0x93, 0x3d, 0x53, 0x89, 0x80, 0xde, 
>> 0xa2,
>> +  0xb5, 0xa5, 0x36, 0xbd, 0xc3, 0x92, 0x03, 0xf3, 0x93, 0xc8, 0xc7, 
>> 0x4a,
>> +  0x0b, 0x8b, 0x62, 0xfe, 0xd0, 0xf8, 0x0d, 0x7a, 0x32, 0xb4, 0x39, 
>> 0x1a,
>> +  0xb7, 0x4e, 0xaa, 0xc4, 0x33, 0x32, 0x90, 0x8c, 0xab, 0xd4, 0xae, 
>> 0xa5,
>> +  0xa4, 0x85, 0xcf, 0xba, 0xe1, 0x1b, 0x26, 0x7f, 0x74, 0x02, 0x12, 
>> 0x09,
>> +  0x89, 0x56, 0xe4, 0xe7, 0x9d, 0x91, 0xde, 0x88, 0xe7, 0x1c, 0xed, 
>> 0x80,
>> +  0x05, 0xa8, 0x58, 0x9a, 0x3e, 0x16, 0x97, 0xd5, 0xbc, 0x54, 0xcc, 
>> 0xf0,
>> +  0x32, 0xf2, 0x93, 0x09, 0x94, 0x9f, 0x3c, 0xd9, 0x58, 0xca, 0x68, 
>> 0x0b,
>> +  0xde, 0x3f, 0x73, 0x64, 0xb7, 0xf4, 0xd7, 0x5f, 0x2b, 0xe7, 0x7b, 
>> 0x06,
>> +  0xca, 0xb1, 0x3e, 0xed, 0xd2, 0xb9, 0x29, 0xc1, 0x95, 0x87, 0xad, 
>> 0xd6,
>> +  0x63, 0x69, 0xb8, 0x1f, 0x70, 0xdb, 0xeb, 0xc7, 0x11, 0x7d, 0xe2, 
>> 0x99,
>> +  0x64, 0x6a, 0xf5, 0x3f, 0x30, 0x74, 0x5f, 0x2a, 0x21, 0xda, 0xef, 
>> 0x44,
>> +  0x1d, 0xad, 0x97, 0xa1, 0xfe, 0x14, 0xa7, 0x88, 0x99, 0xd0, 0x1e, 
>> 0xb0,
>> +  0x61, 0x88, 0x09, 0xc9, 0xfa, 0xd1, 0xb3, 0xcb, 0x1d, 0x76, 0x04, 
>> 0xbe,
>> +  0x06, 0x44, 0xd2, 0x30, 0x5e, 0x95, 0x4b, 0x96, 0xc0, 0xd6, 0xbe, 
>> 0xd0,
>> +  0x4d, 0xf2, 0xf4, 0x71, 0x72, 0xa9, 0xbd, 0x07, 0x4f, 0xbc, 0xb3, 
>> 0x78,
>> +  0xb4, 0x8a, 0x44, 0xbd, 0x58, 0xd5, 0x21, 0xb6, 0x47, 0x9c, 0x88, 
>> 0x1f,
>> +  0xbc, 0xbd, 0x54, 0xfa, 0x1d, 0x49, 0xec, 0x51, 0xd9, 0x43, 0x49, 
>> 0x9c,
>> +  0x0c, 0xfa, 0x18, 0xdb, 0xeb, 0x05, 0x77, 0xa2, 0x9a
>> +};
>> +unsigned int certificate_der_len = 1377;
> 
> This and lenghts below do not seem used...
> 

lengths used by appended_signature_test.c i.e  *sz = identifier##_len;

#define PROC_FILE(identifier, file_name)                                 
    \
   static char *get_##identifier (grub_size_t *sz)                        
    \
   {                                                                      
    \
     char *ret;                                                           
    \
                                                                          
    \
     *sz = identifier##_len;                                              
    \
     ret = grub_malloc (*sz);                                             
    \
     if (ret)                                                             
    \
       grub_memcpy (ret, identifier, *sz);                                
    \
     return ret;                                                          
    \
   }                                                                      
    \
                                                                          
    \
   static struct grub_procfs_entry identifier##_entry = { .name = 
file_name, \
                                                          .get_contents = 
get_##identifier };

#define DEFINE_TEST_CASE(case_name) PROC_FILE (case_name, #case_name)

#define DO_TEST(case_name, is_valid)                       \
   {                                                        \
     grub_procfs_register (#case_name, &case_name##_entry); \
     do_verify ("(proc)/" #case_name, is_valid);            \
     grub_procfs_unregister (&case_name##_entry);           \
   }

DEFINE_TEST_CASE (hi_signed);
DEFINE_TEST_CASE (hi_signed_sha256);
DEFINE_TEST_CASE (hj_signed);
DEFINE_TEST_CASE (short_msg);
DEFINE_TEST_CASE (unsigned_msg);
DEFINE_TEST_CASE (hi_signed_2nd);
DEFINE_TEST_CASE (hi_double);
DEFINE_TEST_CASE (hi_double_extended);

PROC_FILE (certificate_der, "certificate.der")
PROC_FILE (certificate2_der, "certificate2.der")
PROC_FILE (certificate_printable_der, "certificate_printable.der")
PROC_FILE (certificate_eku_der, "certificate_eku.der")


thanks,
Sudhakar Kuppusamy

> Daniel

_______________________________________________
Grub-devel mailing list
Grub-devel@gnu.org
https://lists.gnu.org/mailman/listinfo/grub-devel