| This test data was produced by creating a self-signed EC cert using OpenSSL, |
| and then extracting the relevant fields. |
| |
| It uses RSA PKCS#1 v1.5 with SHA-256 and a 1024-bit key. |
| |
| (1) Generate self-signed certificate |
| |
| openssl genrsa -out rsa_key.pem 1024 |
| openssl req -new -key rsa_key.pem -x509 -nodes -days 365 -out cert.pem |
| |
| (2) Extract public key |
| |
| openssl x509 -in cert.pem -pubkey -noout > pubkey.pem |
| cat pubkey.pem |
| |
| (3) Extract signed data (tbsCertificate) |
| |
| openssl asn1parse -in cert.pem -out tbs -noout -strparse 4 |
| base64 tbs |
| |
| (4) Extract signature algorithm |
| |
| # Find the offset of the signature algorithm near the end (491 in this case) |
| openssl asn1parse -in cert.pem |
| |
| openssl asn1parse -in cert.pem -out alg -noout -strparse 491 |
| base64 alg |
| |
| (5) Extract the signature |
| |
| # Find the final offset of BIT STRING (506 in this case) |
| openssl asn1parse -in cert.pem |
| |
| openssl asn1parse -in cert.pem -out sig -noout -strparse 506 |
| base64 sig |
| |
| |
| $ openssl asn1parse -i < [PUBLIC KEY] |
| 0:d=0 hl=3 l= 159 cons: SEQUENCE |
| 3:d=1 hl=2 l= 13 cons: SEQUENCE |
| 5:d=2 hl=2 l= 9 prim: OBJECT :rsaEncryption |
| 16:d=2 hl=2 l= 0 prim: NULL |
| 18:d=1 hl=3 l= 141 prim: BIT STRING |
| -----BEGIN PUBLIC KEY----- |
| MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCqR+B2Mj1irNp1JnY2zQIQRQPz7ybs6mUjHT3 |
| hf5APyaig2u6fBPThqxssgg0YviqIj/70hVK/JXcqP1zgR5AhsA0agnwAjfB/ow4EH+3HEYV52q |
| pxN98pUxC+1l2hgVtn8xCS/JGyjK+6dv+lZw3ixJoX2RjVtdJ4/cn318EhhQIDAQAB |
| -----END PUBLIC KEY----- |
| |
| $ openssl asn1parse -i < [ALGORITHM] |
| 0:d=0 hl=2 l= 13 cons: SEQUENCE |
| 2:d=1 hl=2 l= 9 prim: OBJECT :sha256WithRSAEncryption |
| 13:d=1 hl=2 l= 0 prim: NULL |
| -----BEGIN ALGORITHM----- |
| MA0GCSqGSIb3DQEBCwUA |
| -----END ALGORITHM----- |
| |
| -----BEGIN DATA----- |
| MIIB46ADAgECAgkA3l4tFOVii0UwDQYJKoZIhvcNAQELBQAwVjELMAkGA1UEBhMCQVUxEzARBgN |
| VBAgMClNvbWUtU3RhdGUxITAfBgNVBAoMGEludGVybmV0IFdpZGdpdHMgUHR5IEx0ZDEPMA0GA1 |
| UEAwwGTXkga2V5MB4XDTE1MDcwMjE3MDYzOVoXDTE2MDcwMTE3MDYzOVowVjELMAkGA1UEBhMCQ |
| VUxEzARBgNVBAgMClNvbWUtU3RhdGUxITAfBgNVBAoMGEludGVybmV0IFdpZGdpdHMgUHR5IEx0 |
| ZDEPMA0GA1UEAwwGTXkga2V5MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCqR+B2Mj1irNp |
| 1JnY2zQIQRQPz7ybs6mUjHT3hf5APyaig2u6fBPThqxssgg0YviqIj/70hVK/JXcqP1zgR5AhsA |
| 0agnwAjfB/ow4EH+3HEYV52qpxN98pUxC+1l2hgVtn8xCS/JGyjK+6dv+lZw3ixJoX2RjVtdJ4/ |
| cn318EhhQIDAQABo1AwTjAdBgNVHQ4EFgQUzQBVKTEknyLndWd2HTsBdTKvyikwHwYDVR0jBBgw |
| FoAUzQBVKTEknyLndWd2HTsBdTKvyikwDAYDVR0TBAUwAwEB/w== |
| -----END DATA----- |
| |
| $ openssl asn1parse -i < [SIGNATURE] |
| 0:d=0 hl=3 l= 129 prim: BIT STRING |
| -----BEGIN SIGNATURE----- |
| A4GBADrHSmFSJw/Gv7hs5PNzpaJwAri/sitarIZfzN/SjR+n8L8yeTEoiDb1+BkxlFvXvPHTaOK |
| oO3WlslNNOxh1W5/JkYYGOUkCcyIjnln6qS560imcr3VNjomT/M8M2Iss+rJiKau1TRuaP7H8i6 |
| +Gqf3saGdr8/LnvFAdNQvkalQt |
| -----END SIGNATURE----- |
