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| 1 This test data was produced by creating a self-signed EC cert using OpenSSL, |
| 2 and then extracting the relevant fields. |
| 3 |
| 4 It uses RSA PKCS#1 v1.5 with SHA-256 and a 1024-bit key. |
| 5 |
| 6 (1) Generate self-signed certificate |
| 7 |
| 8 openssl genrsa -out rsa_key.pem 1024 |
| 9 openssl req -new -key rsa_key.pem -x509 -nodes -days 365 -out cert.pem |
| 10 |
| 11 (2) Extract public key |
| 12 |
| 13 openssl x509 -in cert.pem -pubkey -noout > pubkey.pem |
| 14 cat pubkey.pem |
| 15 |
| 16 (3) Extract signed data (tbsCertificate) |
| 17 |
| 18 openssl asn1parse -in cert.pem -out tbs -noout -strparse 4 |
| 19 base64 tbs |
| 20 |
| 21 (4) Extract signature algorithm |
| 22 |
| 23 # Find the offset of the signature algorithm near the end (491 in this case) |
| 24 openssl asn1parse -in cert.pem |
| 25 |
| 26 openssl asn1parse -in cert.pem -out alg -noout -strparse 491 |
| 27 base64 alg |
| 28 |
| 29 (5) Extract the signature |
| 30 |
| 31 # Find the final offset of BIT STRING (506 in this case) |
| 32 openssl asn1parse -in cert.pem |
| 33 |
| 34 openssl asn1parse -in cert.pem -out sig -noout -strparse 506 |
| 35 base64 sig |
| 36 |
| 37 |
| 38 $ openssl asn1parse -i < [PUBLIC KEY] |
| 39 0:d=0 hl=3 l= 159 cons: SEQUENCE |
| 40 3:d=1 hl=2 l= 13 cons: SEQUENCE |
| 41 5:d=2 hl=2 l= 9 prim: OBJECT :rsaEncryption |
| 42 16:d=2 hl=2 l= 0 prim: NULL |
| 43 18:d=1 hl=3 l= 141 prim: BIT STRING |
| 44 -----BEGIN PUBLIC KEY----- |
| 45 MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCqR+B2Mj1irNp1JnY2zQIQRQPz7ybs6mUjHT3 |
| 46 hf5APyaig2u6fBPThqxssgg0YviqIj/70hVK/JXcqP1zgR5AhsA0agnwAjfB/ow4EH+3HEYV52q |
| 47 pxN98pUxC+1l2hgVtn8xCS/JGyjK+6dv+lZw3ixJoX2RjVtdJ4/cn318EhhQIDAQAB |
| 48 -----END PUBLIC KEY----- |
| 49 |
| 50 |
| 51 $ openssl asn1parse -i < [ALGORITHM] |
| 52 0:d=0 hl=2 l= 13 cons: SEQUENCE |
| 53 2:d=1 hl=2 l= 9 prim: OBJECT :sha256WithRSAEncryption |
| 54 13:d=1 hl=2 l= 0 prim: NULL |
| 55 -----BEGIN ALGORITHM----- |
| 56 MA0GCSqGSIb3DQEBCwUA |
| 57 -----END ALGORITHM----- |
| 58 |
| 59 |
| 60 -----BEGIN DATA----- |
| 61 MIIB46ADAgECAgkA3l4tFOVii0UwDQYJKoZIhvcNAQELBQAwVjELMAkGA1UEBhMCQVUxEzARBgN |
| 62 VBAgMClNvbWUtU3RhdGUxITAfBgNVBAoMGEludGVybmV0IFdpZGdpdHMgUHR5IEx0ZDEPMA0GA1 |
| 63 UEAwwGTXkga2V5MB4XDTE1MDcwMjE3MDYzOVoXDTE2MDcwMTE3MDYzOVowVjELMAkGA1UEBhMCQ |
| 64 VUxEzARBgNVBAgMClNvbWUtU3RhdGUxITAfBgNVBAoMGEludGVybmV0IFdpZGdpdHMgUHR5IEx0 |
| 65 ZDEPMA0GA1UEAwwGTXkga2V5MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCqR+B2Mj1irNp |
| 66 1JnY2zQIQRQPz7ybs6mUjHT3hf5APyaig2u6fBPThqxssgg0YviqIj/70hVK/JXcqP1zgR5AhsA |
| 67 0agnwAjfB/ow4EH+3HEYV52qpxN98pUxC+1l2hgVtn8xCS/JGyjK+6dv+lZw3ixJoX2RjVtdJ4/ |
| 68 cn318EhhQIDAQABo1AwTjAdBgNVHQ4EFgQUzQBVKTEknyLndWd2HTsBdTKvyikwHwYDVR0jBBgw |
| 69 FoAUzQBVKTEknyLndWd2HTsBdTKvyikwDAYDVR0TBAUwAwEB/w== |
| 70 -----END DATA----- |
| 71 |
| 72 |
| 73 $ openssl asn1parse -i < [SIGNATURE] |
| 74 0:d=0 hl=3 l= 129 prim: BIT STRING |
| 75 -----BEGIN SIGNATURE----- |
| 76 A4GBADrHSmFSJw/Gv7hs5PNzpaJwAri/sitarIZfzN/SjR+n8L8yeTEoiDb1+BkxlFvXvPHTaOK |
| 77 oO3WlslNNOxh1W5/JkYYGOUkCcyIjnln6qS560imcr3VNjomT/M8M2Iss+rJiKau1TRuaP7H8i6 |
| 78 +Gqf3saGdr8/LnvFAdNQvkalQt |
| 79 -----END SIGNATURE----- |
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