net/data/verify_signed_data_unittest/rsa-pkcs1-sha256.pem

   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
  39 -----BEGIN PUBLIC KEY-----
  40 MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCqR+B2Mj1irNp1JnY2zQIQRQPz7ybs6mUjHT3
  41 hf5APyaig2u6fBPThqxssgg0YviqIj/70hVK/JXcqP1zgR5AhsA0agnwAjfB/ow4EH+3HEYV52q
  42 pxN98pUxC+1l2hgVtn8xCS/JGyjK+6dv+lZw3ixJoX2RjVtdJ4/cn318EhhQIDAQAB
  43 -----END PUBLIC KEY-----
  44
  45 $ openssl asn1parse -i < [PUBLIC KEY]
  46     0:d=0  hl=3 l= 159 cons: SEQUENCE
  47     3:d=1  hl=2 l=  13 cons:  SEQUENCE
  48     5:d=2  hl=2 l=   9 prim:   OBJECT            :rsaEncryption
  49    16:d=2  hl=2 l=   0 prim:   NULL
  50    18:d=1  hl=3 l= 141 prim:  BIT STRING
  51
  52
  53
  54 -----BEGIN ALGORITHM-----
  55 MA0GCSqGSIb3DQEBCwUA
  56 -----END ALGORITHM-----
  57
  58 $ openssl asn1parse -i < [ALGORITHM]
  59     0:d=0  hl=2 l=  13 cons: SEQUENCE
  60     2:d=1  hl=2 l=   9 prim:  OBJECT            :sha256WithRSAEncryption
  61    13:d=1  hl=2 l=   0 prim:  NULL
  62
  63
  64
  65 -----BEGIN DATA-----
  66 MIIB46ADAgECAgkA3l4tFOVii0UwDQYJKoZIhvcNAQELBQAwVjELMAkGA1UEBhMCQVUxEzARBgN
  67 VBAgMClNvbWUtU3RhdGUxITAfBgNVBAoMGEludGVybmV0IFdpZGdpdHMgUHR5IEx0ZDEPMA0GA1
  68 UEAwwGTXkga2V5MB4XDTE1MDcwMjE3MDYzOVoXDTE2MDcwMTE3MDYzOVowVjELMAkGA1UEBhMCQ
  69 VUxEzARBgNVBAgMClNvbWUtU3RhdGUxITAfBgNVBAoMGEludGVybmV0IFdpZGdpdHMgUHR5IEx0
  70 ZDEPMA0GA1UEAwwGTXkga2V5MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCqR+B2Mj1irNp
  71 1JnY2zQIQRQPz7ybs6mUjHT3hf5APyaig2u6fBPThqxssgg0YviqIj/70hVK/JXcqP1zgR5AhsA
  72 0agnwAjfB/ow4EH+3HEYV52qpxN98pUxC+1l2hgVtn8xCS/JGyjK+6dv+lZw3ixJoX2RjVtdJ4/
  73 cn318EhhQIDAQABo1AwTjAdBgNVHQ4EFgQUzQBVKTEknyLndWd2HTsBdTKvyikwHwYDVR0jBBgw
  74 FoAUzQBVKTEknyLndWd2HTsBdTKvyikwDAYDVR0TBAUwAwEB/w==
  75 -----END DATA-----
  76
  77
  78
  79 -----BEGIN SIGNATURE-----
  80 A4GBADrHSmFSJw/Gv7hs5PNzpaJwAri/sitarIZfzN/SjR+n8L8yeTEoiDb1+BkxlFvXvPHTaOK
  81 oO3WlslNNOxh1W5/JkYYGOUkCcyIjnln6qS560imcr3VNjomT/M8M2Iss+rJiKau1TRuaP7H8i6
  82 +Gqf3saGdr8/LnvFAdNQvkalQt
  83 -----END SIGNATURE-----
  84
  85 $ openssl asn1parse -i < [SIGNATURE]
  86     0:d=0  hl=3 l= 129 prim: BIT STRING