chromium/content/test/data/sxg/prime256v1.key

-----BEGIN EC PARAMETERS-----
BggqhkjOPQMBBw==
-----END EC PARAMETERS-----
-----BEGIN EC PRIVATE KEY-----
MHcCAQEEIBcB7+YllD0Xuh9bxWJFU82DGu40PHXbRRrrko7uRC5ooAoGCCqGSM49
AwEHoUQDQgAE1Dt0qoFgKULKNerI6T5IK1uFjD6qGGV7b3KISC1k996X95wCSeQB
pDwzeAkMprhlF217u68wgGlkt4z+tkL8nQ==
-----END EC PRIVATE KEY-----