| This test data was produced by creating a self-signed EC cert using OpenSSL, |
| and then extracting the relevant fields. |
| |
| It uses ECDSA with curve secp384r1 an SHA-256. |
| |
| (1) Generate self-signed certificate |
| |
| openssl ecparam -out ec_key.pem -name secp384r1 -genkey |
| openssl req -new -key ec_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 (496 in this case) |
| openssl asn1parse -in cert.pem |
| |
| openssl asn1parse -in cert.pem -out alg -noout -strparse 496 |
| base64 alg |
| |
| (5) Extract the signature |
| |
| # Find the final offset of BIT STRING (508 in this case) |
| openssl asn1parse -in cert.pem |
| |
| openssl asn1parse -in cert.pem -out sig -noout -strparse 508 |
| base64 sig |
| |
| |
| $ openssl asn1parse -i < [PUBLIC KEY] |
| 0:d=0 hl=2 l= 118 cons: SEQUENCE |
| 2:d=1 hl=2 l= 16 cons: SEQUENCE |
| 4:d=2 hl=2 l= 7 prim: OBJECT :id-ecPublicKey |
| 13:d=2 hl=2 l= 5 prim: OBJECT :secp384r1 |
| 20:d=1 hl=2 l= 98 prim: BIT STRING |
| -----BEGIN PUBLIC KEY----- |
| MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAEXFhBi+WKXuxeK9yCbC9jqEchwjCNsQ4RXAsJ07oHZ+Q |
| qz55cNIY5BAhcQ0QYY5jv9BimGL9SuhUuOSuS3Pn9rrsIFGcFsihy4kDr8rq5+7RbN8bV057gW5 |
| emYjLtvDsQ |
| -----END PUBLIC KEY----- |
| |
| $ openssl asn1parse -i < [ALGORITHM] |
| 0:d=0 hl=2 l= 10 cons: SEQUENCE |
| 2:d=1 hl=2 l= 8 prim: OBJECT :ecdsa-with-SHA256 |
| -----BEGIN ALGORITHM----- |
| MAoGCCqGSM49BAMC |
| -----END ALGORITHM----- |
| |
| -----BEGIN DATA----- |
| MIIB6KADAgECAgkAtUVxft6/Vc0wCgYIKoZIzj0EAwIwbzELMAkGA1UEBhMCQVUxEzARBgNVBAg |
| MClNvbWUtU3RhdGUxITAfBgNVBAoMGEludGVybmV0IFdpZGdpdHMgUHR5IEx0ZDEMMAoGA1UEAw |
| wDYWhhMRowGAYJKoZIhvcNAQkBFgtzdXBAZm9vLmNvbTAeFw0xNTA3MDIwMDM4MTRaFw0xNjA3M |
| DEwMDM4MTRaMG8xCzAJBgNVBAYTAkFVMRMwEQYDVQQIDApTb21lLVN0YXRlMSEwHwYDVQQKDBhJ |
| bnRlcm5ldCBXaWRnaXRzIFB0eSBMdGQxDDAKBgNVBAMMA2FoYTEaMBgGCSqGSIb3DQEJARYLc3V |
| wQGZvby5jb20wdjAQBgcqhkjOPQIBBgUrgQQAIgNiAARcWEGL5Ype7F4r3IJsL2OoRyHCMI2xDh |
| FcCwnTugdn5CrPnlw0hjkECFxDRBhjmO/0GKYYv1K6FS45K5Lc+f2uuwgUZwWyKHLiQOvyurn7t |
| Fs3xtXTnuBbl6ZiMu28OxCjUDBOMB0GA1UdDgQWBBR6nDgtPalG2JvSlWzdGRCi/Cu7NjAfBgNV |
| HSMEGDAWgBR6nDgtPalG2JvSlWzdGRCi/Cu7NjAMBgNVHRMEBTADAQH/ |
| -----END DATA----- |
| |
| $ openssl asn1parse -i < [SIGNATURE] |
| 0:d=0 hl=2 l= 105 prim: BIT STRING |
| -----BEGIN SIGNATURE----- |
| A2kAMGYCMQCDwMSZVJZ8qThiNTV7VX57m8fdNnNS6cXIjRYoh4SozlYWmWGh87nhmJJCeD16jVM |
| CMQDkroAY8oNi8RxLUor+LozhhVgu24tu6lcp4MP8H3Zy8bBea5HerAd1AqJp3Ox7KDU= |
| -----END SIGNATURE----- |
