PEM文件:
    密钥文件(KEY文件)
    证书文件(CRT/CER文件)

    格式：pem、der、cer、Pfx、p12、p7b
    形式：x509、PKCS#1、PKCS#7、PKCS#8、PKCS12

    证书请求文件(CSR)

    CERTIFICATE REQUEST

    1. -----BEGIN CERTIFICATE REQUEST-----
    2. MIICwzCCAasCAQEwfjEVMBMGA1UEAwwMMTgwLjIuMzEuMTQzMQswCQYDVQQGEwJD
    3. TjERMA8GA1UECAwIU2hhbmdoYWkxETAPBgNVBAcMCFNoYW5naGFpMQwwCgYDVQQL
    4. DANzZ2UxJDAiBgNVBAoMG+S4iua1t+m7hOmHkeWbvemZheS6pOaYk+aJgDCCASIw
    5. DQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMFf0P4XBr/A5CcxaXc4EQi8gFRK
    6. IUV4PLLYTR8qlThZuteeHQ11t8cog5v5t9I0K9FabucZUgK1dAE3PNSOty2SgG1i
    7. qf/sJX45lW0O+c3EtL+NV6cpBQFjPgnuLbBfB8U5I0RlPMnjeX5Qt5t0tCDEFh2h
    8. aOn56Sp3Gml8dKjSa1nFcg8EYIe64ZUvXnHBbQGQlsMdx25NVowE8mTCpq/w1ii4
    9. EMW6lKUqR7hcAPkQo7E6r9TbXoS6wd6nFmejrCV7A4CgYOMe077Ilt/sO9uj7uDI
    10. txgDLCEq+uggy7zJHdnB0Brxcac0LhCogtIB6k1Twb5RKWm5cTrttfiOBAECAwEA
    11. AaAAMA0GCSqGSIb3DQEBBQUAA4IBAQBQj11aah4kIJmr1debKWq162ZRo9+/uSZb
    12. EDwKWw+l3Xuj2lvouk1E9vR8Gxnqfm93+B1MBxQXZ2bDfyfLXkIxH7DkZ9gMn5RJ
    13. LLLvQtf558tiNKhAxlsO9PPr1As9i7t7M/uRkS+YhPCETjS7FxxUVjXqvmrbATus
    14. dl2Iv3frFtkNfvsanye8oVrt9BgLoUgU+892KbiyqljB3qoOFiRWXrypzjWrfrhZ
    15. xh9J6rSiqplV/3DDqkc2aAXUNZ9id/1BY4IChfNnMmuzQ5v+wEw5dVB6BCe6/e15
    16. n6hjUNrmrzAk+05kR+jjhRbuvICb3wUTeqzURKhHC+IntOIajHSU
    17. -----END CERTIFICATE REQUEST-----

    密钥文件(KEY文件)

    RSA PRIVATE KEY

    1. -----BEGIN RSA PRIVATE KEY-----
    2. ImcaJjXQsihqkuohYcWh2QuijBgXZC+o9IUl+2SNhw6OYXSJTuuD09VFQFAaUC41
    3. AoGAfusLj179P1QYNJKo5a+Jqg4O0Uc3wgjYRlZdkBQ7BJ6O+nKeZaXM7wTlALwm
    4. Z9RKyKbvzR9AGvqHgPxUn0xTNOzIN+WI/Yyg7vkEQUCdb96YVE7LRQgxiBtSgQUr
    5. ya4rlUZb0S/s/yye2iWrCTuWbSOr2OJIuo4LPaCen3/W3ZECQQD4lpsqR+sIBFkY
    6. FPayHMuNzlIkA31rx1fff19APAEytOiQi+opbBOhE73a+txQE6doGokawtIAtb/p
    7. 8CCtThbbFLJBIRjQWCIl1NnNWSwlqPO9FQJBAOM05EVUzmDZeIUmRASvhOzrcvAv
    8. sGbeIFbKmEihj4bFCvtypmeNvLMw1Apd1xfpnszr0/x9rGuxsuLLo49ZzfkCQQCF
    9. i940OxgmwfDQovh166CXgKEZ93ZA9953Zb7Kedzu4Fom
    10. -----END RSA PRIVATE KEY-----

    证书文件(CRT/CER文件)

    1. -----BEGIN CERTIFICATE-----
    2. VVMxCzAJBgNVBAgTAlVUMRcwFQYDVQQHEw5TYWx0IExha2UgQ2l0eTEeMBwGA1UE
    3. ChMVVGhlIFVTRVJUUlVTVCBOZXR3b3JrMSEwHwYDVQQLExhodHRwOi8vd3d3LnVz
    4. ZXJ0cnVzdC5jb20xKzApBgNVBAMTIlVUTi1VU0VSRmlyc3QtTmV0d29yayBBcHBs
    5. NzExMDY5NDAxMTAvBgNVBAsTKFNlZSB3d3cucmFwaWRzc2wuY29tL3Jlc291cmNl
    6. cy9jcHMgKGMpMDcxLzAtBgNVBAsTJkRvbWFpbiBDb250cm9sIFZhbGlkYXRlZCAt
    7. XCKBNQNAzybtImcaJjXQsihqkuohYcWh2QuijBgXZC+o9IUl+2SNhw6OYXSJTuuD
    8. 09VFQFAaUC41rLcU9BDh6w7xmGnZJzZ0H8jm2E9NA6s6DId7qQ+f/YdkKePRR+Dw
    9. p9GnjmheMvhqs0DFj+tCFhHX3PK8WGrYBYG8ejsgo8uKAKTkishpOMyTs4CmTlDX
    10. chn5QGRjpq2FlIqqlTwLdMGpkeUSZjuAFblLhTQs158Q5VHC5SH+3DvJW+g7/CpT
    11. jBhiTnfNyD19rUmrWZ2dmic50B32BAiIO9OepmVvI8nA1TBvNFfhX75cOCk=
    12. -----END CERTIFICATE-----