1This is the same test as rsa-pkcs1-sha256.pem except the SPKI has been tampered 2with. The parameters have been changed from NULL to an INTEGER. 3 4This was done by changing: 5 6 05 00 (NULL) 7To: 8 02 00 (INTEGER) 9 10 11$ openssl asn1parse -i < [PUBLIC KEY] 12 0:d=0 hl=3 l= 159 cons: SEQUENCE 13 3:d=1 hl=2 l= 13 cons: SEQUENCE 14 5:d=2 hl=2 l= 9 prim: OBJECT :rsaEncryption 15 16:d=2 hl=2 l= 0 prim: INTEGER :00 16 18:d=1 hl=3 l= 141 prim: BIT STRING 17-----BEGIN PUBLIC KEY----- 18MIGfMA0GCSqGSIb3DQEBAQIAA4GNADCBiQKBgQCqR+B2Mj1irNp1JnY2zQIQRQPz7ybs6mUjHT3 19hf5APyaig2u6fBPThqxssgg0YviqIj/70hVK/JXcqP1zgR5AhsA0agnwAjfB/ow4EH+3HEYV52q 20pxN98pUxC+1l2hgVtn8xCS/JGyjK+6dv+lZw3ixJoX2RjVtdJ4/cn318EhhQIDAQAB 21-----END PUBLIC KEY----- 22 23$ openssl asn1parse -i < [ALGORITHM] 24 0:d=0 hl=2 l= 13 cons: SEQUENCE 25 2:d=1 hl=2 l= 9 prim: OBJECT :sha256WithRSAEncryption 26 13:d=1 hl=2 l= 0 prim: NULL 27-----BEGIN ALGORITHM----- 28MA0GCSqGSIb3DQEBCwUA 29-----END ALGORITHM----- 30 31-----BEGIN DATA----- 32MIIB46ADAgECAgkA3l4tFOVii0UwDQYJKoZIhvcNAQELBQAwVjELMAkGA1UEBhMCQVUxEzARBgN 33VBAgMClNvbWUtU3RhdGUxITAfBgNVBAoMGEludGVybmV0IFdpZGdpdHMgUHR5IEx0ZDEPMA0GA1 34UEAwwGTXkga2V5MB4XDTE1MDcwMjE3MDYzOVoXDTE2MDcwMTE3MDYzOVowVjELMAkGA1UEBhMCQ 35VUxEzARBgNVBAgMClNvbWUtU3RhdGUxITAfBgNVBAoMGEludGVybmV0IFdpZGdpdHMgUHR5IEx0 36ZDEPMA0GA1UEAwwGTXkga2V5MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCqR+B2Mj1irNp 371JnY2zQIQRQPz7ybs6mUjHT3hf5APyaig2u6fBPThqxssgg0YviqIj/70hVK/JXcqP1zgR5AhsA 380agnwAjfB/ow4EH+3HEYV52qpxN98pUxC+1l2hgVtn8xCS/JGyjK+6dv+lZw3ixJoX2RjVtdJ4/ 39cn318EhhQIDAQABo1AwTjAdBgNVHQ4EFgQUzQBVKTEknyLndWd2HTsBdTKvyikwHwYDVR0jBBgw 40FoAUzQBVKTEknyLndWd2HTsBdTKvyikwDAYDVR0TBAUwAwEB/w== 41-----END DATA----- 42 43$ openssl asn1parse -i < [SIGNATURE] 44 0:d=0 hl=3 l= 129 prim: BIT STRING 45-----BEGIN SIGNATURE----- 46A4GBADrHSmFSJw/Gv7hs5PNzpaJwAri/sitarIZfzN/SjR+n8L8yeTEoiDb1+BkxlFvXvPHTaOK 47oO3WlslNNOxh1W5/JkYYGOUkCcyIjnln6qS560imcr3VNjomT/M8M2Iss+rJiKau1TRuaP7H8i6 48+Gqf3saGdr8/LnvFAdNQvkalQt 49-----END SIGNATURE----- 50