Cross Reference: /external/boringssl/src/ssl/test/runner/ecdsa_p224_key.pem

      1 -----BEGIN EC PRIVATE KEY-----
      2 MGgCAQEEHGi+rNLi+gHJqmRRtdlLBOw1WYv7H/VnlYGAZ0+gBwYFK4EEACGhPAM6
      3 AATp26Xp0vT4LKigWIorhX4Rg1g9sxmgtPFFyNGCvDd1vpDMEC+INLEoANNW7JGZ
      4 pULvgx/pugEcOQ==
      5 -----END EC PRIVATE KEY-----
      6