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Source file src/crypto/x509/pem_decrypt_test.go

Documentation: crypto/x509

  // Copyright 2012 The Go Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style
  // license that can be found in the LICENSE file.
  
  package x509
  
  import (
  	"bytes"
  	"crypto/rand"
  	"encoding/base64"
  	"encoding/pem"
  	"strings"
  	"testing"
  )
  
  func TestDecrypt(t *testing.T) {
  	for i, data := range testData {
  		t.Logf("test %v. %v", i, data.kind)
  		block, rest := pem.Decode(data.pemData)
  		if len(rest) > 0 {
  			t.Error("extra data")
  		}
  		der, err := DecryptPEMBlock(block, data.password)
  		if err != nil {
  			t.Error("decrypt failed: ", err)
  			continue
  		}
  		if _, err := ParsePKCS1PrivateKey(der); err != nil {
  			t.Error("invalid private key: ", err)
  		}
  		plainDER, err := base64.StdEncoding.DecodeString(data.plainDER)
  		if err != nil {
  			t.Fatal("cannot decode test DER data: ", err)
  		}
  		if !bytes.Equal(der, plainDER) {
  			t.Error("data mismatch")
  		}
  	}
  }
  
  func TestEncrypt(t *testing.T) {
  	for i, data := range testData {
  		t.Logf("test %v. %v", i, data.kind)
  		plainDER, err := base64.StdEncoding.DecodeString(data.plainDER)
  		if err != nil {
  			t.Fatal("cannot decode test DER data: ", err)
  		}
  		password := []byte("kremvax1")
  		block, err := EncryptPEMBlock(rand.Reader, "RSA PRIVATE KEY", plainDER, password, data.kind)
  		if err != nil {
  			t.Error("encrypt: ", err)
  			continue
  		}
  		if !IsEncryptedPEMBlock(block) {
  			t.Error("PEM block does not appear to be encrypted")
  		}
  		if block.Type != "RSA PRIVATE KEY" {
  			t.Errorf("unexpected block type; got %q want %q", block.Type, "RSA PRIVATE KEY")
  		}
  		if block.Headers["Proc-Type"] != "4,ENCRYPTED" {
  			t.Errorf("block does not have correct Proc-Type header")
  		}
  		der, err := DecryptPEMBlock(block, password)
  		if err != nil {
  			t.Error("decrypt: ", err)
  			continue
  		}
  		if !bytes.Equal(der, plainDER) {
  			t.Errorf("data mismatch")
  		}
  	}
  }
  
  var testData = []struct {
  	kind     PEMCipher
  	password []byte
  	pemData  []byte
  	plainDER string
  }{
  	{
  		kind:     PEMCipherDES,
  		password: []byte("asdf"),
  		pemData: []byte(`
  -----BEGIN RSA PRIVATE KEY-----
  Proc-Type: 4,ENCRYPTED
  DEK-Info: DES-CBC,34F09A4FC8DE22B5
  
  WXxy8kbZdiZvANtKvhmPBLV7eVFj2A5z6oAxvI9KGyhG0ZK0skfnt00C24vfU7m5
  ICXeoqP67lzJ18xCzQfHjDaBNs53DSDT+Iz4e8QUep1xQ30+8QKX2NA2coee3nwc
  6oM1cuvhNUDemBH2i3dKgMVkfaga0zQiiOq6HJyGSncCMSruQ7F9iWEfRbFcxFCx
  qtHb1kirfGKEtgWTF+ynyco6+2gMXNu70L7nJcnxnV/RLFkHt7AUU1yrclxz7eZz
  XOH9VfTjb52q/I8Suozq9coVQwg4tXfIoYUdT//O+mB7zJb9HI9Ps77b9TxDE6Gm
  4C9brwZ3zg2vqXcwwV6QRZMtyll9rOpxkbw6NPlpfBqkc3xS51bbxivbO/Nve4KD
  r12ymjFNF4stXCfJnNqKoZ50BHmEEUDu5Wb0fpVn82XrGw7CYc4iug==
  -----END RSA PRIVATE KEY-----`),
  		plainDER: `
  MIIBPAIBAAJBAPASZe+tCPU6p80AjHhDkVsLYa51D35e/YGa8QcZyooeZM8EHozo
  KD0fNiKI+53bHdy07N+81VQ8/ejPcRoXPlsCAwEAAQJBAMTxIuSq27VpR+zZ7WJf
  c6fvv1OBvpMZ0/d1pxL/KnOAgq2rD5hDtk9b0LGhTPgQAmrrMTKuSeGoIuYE+gKQ
  QvkCIQD+GC1m+/do+QRurr0uo46Kx1LzLeSCrjBk34wiOp2+dwIhAPHfTLRXS2fv
  7rljm0bYa4+eDZpz+E8RcXEgzhhvcQQ9AiAI5eHZJGOyml3MXnQjiPi55WcDOw0w
  glcRgT6QCEtz2wIhANSyqaFtosIkHKqrDUGfz/bb5tqMYTAnBruVPaf/WEOBAiEA
  9xORWeRG1tRpso4+dYy4KdDkuLPIO01KY6neYGm3BCM=`,
  	},
  	{
  		kind:     PEMCipher3DES,
  		password: []byte("asdf"),
  		pemData: []byte(`
  -----BEGIN RSA PRIVATE KEY-----
  Proc-Type: 4,ENCRYPTED
  DEK-Info: DES-EDE3-CBC,C1F4A6A03682C2C7
  
  0JqVdBEH6iqM7drTkj+e2W/bE3LqakaiWhb9WUVonFkhyu8ca/QzebY3b5gCvAZQ
  YwBvDcT/GHospKqPx+cxDHJNsUASDZws6bz8ZXWJGwZGExKzr0+Qx5fgXn44Ms3x
  8g1ENFuTXtxo+KoNK0zuAMAqp66Llcds3Fjl4XR18QaD0CrVNAfOdgATWZm5GJxk
  Fgx5f84nT+/ovvreG+xeOzWgvtKo0UUZVrhGOgfKLpa57adumcJ6SkUuBtEFpZFB
  ldw5w7WC7d13x2LsRkwo8ZrDKgIV+Y9GNvhuCCkTzNP0V3gNeJpd201HZHR+9n3w
  3z0VjR/MGqsfcy1ziEWMNOO53At3zlG6zP05aHMnMcZoVXadEK6L1gz++inSSDCq
  gI0UJP4e3JVB7AkgYymYAwiYALAkoEIuanxoc50njJk=
  -----END RSA PRIVATE KEY-----`),
  		plainDER: `
  MIIBOwIBAAJBANOCXKdoNS/iP/MAbl9cf1/SF3P+Ns7ZeNL27CfmDh0O6Zduaax5
  NBiumd2PmjkaCu7lQ5JOibHfWn+xJsc3kw0CAwEAAQJANX/W8d1Q/sCqzkuAn4xl
  B5a7qfJWaLHndu1QRLNTRJPn0Ee7OKJ4H0QKOhQM6vpjRrz+P2u9thn6wUxoPsef
  QQIhAP/jCkfejFcy4v15beqKzwz08/tslVjF+Yq41eJGejmxAiEA05pMoqfkyjcx
  fyvGhpoOyoCp71vSGUfR2I9CR65oKh0CIC1Msjs66LlfJtQctRq6bCEtFCxEcsP+
  eEjYo/Sk6WphAiEAxpgWPMJeU/shFT28gS+tmhjPZLpEoT1qkVlC14u0b3ECIQDX
  tZZZxCtPAm7shftEib0VU77Lk8MsXJcx2C4voRsjEw==`,
  	},
  	{
  		kind:     PEMCipherAES128,
  		password: []byte("asdf"),
  		pemData: []byte(`
  -----BEGIN RSA PRIVATE KEY-----
  Proc-Type: 4,ENCRYPTED
  DEK-Info: AES-128-CBC,D4492E793FC835CC038A728ED174F78A
  
  EyfQSzXSjv6BaNH+NHdXRlkHdimpF9izWlugVJAPApgXrq5YldPe2aGIOFXyJ+QE
  ZIG20DYqaPzJRjTEbPNZ6Es0S2JJ5yCpKxwJuDkgJZKtF39Q2i36JeGbSZQIuWJE
  GZbBpf1jDH/pr0iGonuAdl2PCCZUiy+8eLsD2tyviHUkFLOB+ykYoJ5t8ngZ/B6D
  33U43LLb7+9zD4y3Q9OVHqBFGyHcxCY9+9Qh4ZnFp7DTf6RY5TNEvE3s4g6aDpBs
  3NbvRVvYTgs8K9EPk4K+5R+P2kD8J8KvEIGxVa1vz8QoCJ/jr7Ka2rvNgPCex5/E
  080LzLHPCrXKdlr/f50yhNWq08ZxMWQFkui+FDHPDUaEELKAXV8/5PDxw80Rtybo
  AVYoCVIbZXZCuCO81op8UcOgEpTtyU5Lgh3Mw5scQL0=
  -----END RSA PRIVATE KEY-----`),
  		plainDER: `
  MIIBOgIBAAJBAMBlj5FxYtqbcy8wY89d/S7n0+r5MzD9F63BA/Lpl78vQKtdJ5dT
  cDGh/rBt1ufRrNp0WihcmZi7Mpl/3jHjiWECAwEAAQJABNOHYnKhtDIqFYj1OAJ3
  k3GlU0OlERmIOoeY/cL2V4lgwllPBEs7r134AY4wMmZSBUj8UR/O4SNO668ElKPE
  cQIhAOuqY7/115x5KCdGDMWi+jNaMxIvI4ETGwV40ykGzqlzAiEA0P9oEC3m9tHB
  kbpjSTxaNkrXxDgdEOZz8X0uOUUwHNsCIAwzcSCiGLyYJTULUmP1ESERfW1mlV78
  XzzESaJpIM/zAiBQkSTcl9VhcJreQqvjn5BnPZLP4ZHS4gPwJAGdsj5J4QIhAOVR
  B3WlRNTXR2WsJ5JdByezg9xzdXzULqmga0OE339a`,
  	},
  	{
  		kind:     PEMCipherAES192,
  		password: []byte("asdf"),
  		pemData: []byte(`
  -----BEGIN RSA PRIVATE KEY-----
  Proc-Type: 4,ENCRYPTED
  DEK-Info: AES-192-CBC,E2C9FB02BCA23ADE1829F8D8BC5F5369
  
  cqVslvHqDDM6qwU6YjezCRifXmKsrgEev7ng6Qs7UmDJOpHDgJQZI9fwMFUhIyn5
  FbCu1SHkLMW52Ld3CuEqMnzWMlhPrW8tFvUOrMWPYSisv7nNq88HobZEJcUNL2MM
  Y15XmHW6IJwPqhKyLHpWXyOCVEh4ODND2nV15PCoi18oTa475baxSk7+1qH7GuIs
  Rb7tshNTMqHbCpyo9Rn3UxeFIf9efdl8YLiMoIqc7J8E5e9VlbeQSdLMQOgDAQJG
  ReUtTw8exmKsY4gsSjhkg5uiw7/ZB1Ihto0qnfQJgjGc680qGkT1d6JfvOfeYAk6
  xn5RqS/h8rYAYm64KnepfC9vIujo4NqpaREDmaLdX5MJPQ+SlytITQvgUsUq3q/t
  Ss85xjQEZH3hzwjQqdJvmA4hYP6SUjxYpBM+02xZ1Xw=
  -----END RSA PRIVATE KEY-----`),
  		plainDER: `
  MIIBOwIBAAJBAMGcRrZiNNmtF20zyS6MQ7pdGx17aFDl+lTl+qnLuJRUCMUG05xs
  OmxmL/O1Qlf+bnqR8Bgg65SfKg21SYuLhiMCAwEAAQJBAL94uuHyO4wux2VC+qpj
  IzPykjdU7XRcDHbbvksf4xokSeUFjjD3PB0Qa83M94y89ZfdILIqS9x5EgSB4/lX
  qNkCIQD6cCIqLfzq/lYbZbQgAAjpBXeQVYsbvVtJrPrXJAlVVQIhAMXpDKMeFPMn
  J0g2rbx1gngx0qOa5r5iMU5w/noN4W2XAiBjf+WzCG5yFvazD+dOx3TC0A8+4x3P
  uZ3pWbaXf5PNuQIgAcdXarvhelH2w2piY1g3BPeFqhzBSCK/yLGxR82KIh8CIQDD
  +qGKsd09NhQ/G27y/DARzOYtml1NvdmCQAgsDIIOLA==`,
  	},
  	{
  		kind:     PEMCipherAES256,
  		password: []byte("asdf"),
  		pemData: []byte(`
  -----BEGIN RSA PRIVATE KEY-----
  Proc-Type: 4,ENCRYPTED
  DEK-Info: AES-256-CBC,8E7ED5CD731902CE938957A886A5FFBD
  
  4Mxr+KIzRVwoOP0wwq6caSkvW0iS+GE2h2Ov/u+n9ZTMwL83PRnmjfjzBgfRZLVf
  JFPXxUK26kMNpIdssNnqGOds+DhB+oSrsNKoxgxSl5OBoYv9eJTVYm7qOyAFIsjr
  DRKAcjYCmzfesr7PVTowwy0RtHmYwyXMGDlAzzZrEvaiySFFmMyKKvtoavwaFoc7
  Pz3RZScwIuubzTGJ1x8EzdffYOsdCa9Mtgpp3L136+23dOd6L/qK2EG2fzrJSHs/
  2XugkleBFSMKzEp9mxXKRfa++uidQvMZTFLDK9w5YjrRvMBo/l2BoZIsq0jAIE1N
  sv5Z/KwlX+3MDEpPQpUwGPlGGdLnjI3UZ+cjgqBcoMiNc6HfgbBgYJSU6aDSHuCk
  clCwByxWkBNgJ2GrkwNrF26v+bGJJJNR4SKouY1jQf0=
  -----END RSA PRIVATE KEY-----`),
  		plainDER: `
  MIIBOgIBAAJBAKy3GFkstoCHIEeUU/qO8207m8WSrjksR+p9B4tf1w5k+2O1V/GY
  AQ5WFCApItcOkQe/I0yZZJk/PmCqMzSxrc8CAwEAAQJAOCAz0F7AW9oNelVQSP8F
  Sfzx7O1yom+qWyAQQJF/gFR11gpf9xpVnnyu1WxIRnDUh1LZwUsjwlDYb7MB74id
  oQIhANPcOiLwOPT4sIUpRM5HG6BF1BI7L77VpyGVk8xNP7X/AiEA0LMHZtk4I+lJ
  nClgYp4Yh2JZ1Znbu7IoQMCEJCjwKDECIGd8Dzm5tViTkUW6Hs3Tlf73nNs65duF
  aRnSglss8I3pAiEAonEnKruawgD8RavDFR+fUgmQiPz4FnGGeVgfwpGG1JECIBYq
  PXHYtPqxQIbD2pScR5qum7iGUh11lEUPkmt+2uqS`,
  	},
  	{
  		// generated with:
  		// openssl genrsa -aes128 -passout pass:asdf -out server.orig.key 128
  		kind:     PEMCipherAES128,
  		password: []byte("asdf"),
  		pemData: []byte(`
  -----BEGIN RSA PRIVATE KEY-----
  Proc-Type: 4,ENCRYPTED
  DEK-Info: AES-128-CBC,74611ABC2571AF11B1BF9B69E62C89E7
  
  6ei/MlytjE0FFgZOGQ+jrwomKfpl8kdefeE0NSt/DMRrw8OacHAzBNi3pPEa0eX3
  eND9l7C9meCirWovjj9QWVHrXyugFuDIqgdhQ8iHTgCfF3lrmcttVrbIfMDw+smD
  hTP8O1mS/MHl92NE0nhv0w==
  -----END RSA PRIVATE KEY-----`),
  		plainDER: `
  MGMCAQACEQC6ssxmYuauuHGOCDAI54RdAgMBAAECEQCWIn6Yv2O+kBcDF7STctKB
  AgkA8SEfu/2i3g0CCQDGNlXbBHX7kQIIK3Ww5o0cYbECCQDCimPb0dYGsQIIeQ7A
  jryIst8=`,
  	},
  }
  
  const incompleteBlockPEM = `
  -----BEGIN RSA PRIVATE KEY-----
  Proc-Type: 4,ENCRYPTED
  DEK-Info: AES-128-CBC,74611ABC2571AF11B1BF9B69E62C89E7
  
  6L8yXK2MTQUWBk4ZD6OvCiYp+mXyR1594TQ1K38MxGvDw5pwcDME2Lek8RrR5fd40P2XsL2Z4KKt
  ai+OP1BZUetfK6AW4MiqB2FDyIdOAJ8XeWuZy21Wtsh8wPD6yYOFM/w7WZL8weX3Y0TSeG/T
  -----END RSA PRIVATE KEY-----`
  
  func TestIncompleteBlock(t *testing.T) {
  	// incompleteBlockPEM contains ciphertext that is not a multiple of the
  	// block size. This previously panicked. See #11215.
  	block, _ := pem.Decode([]byte(incompleteBlockPEM))
  	_, err := DecryptPEMBlock(block, []byte("foo"))
  	if err == nil {
  		t.Fatal("Bad PEM data decrypted successfully")
  	}
  	const expectedSubstr = "block size"
  	if e := err.Error(); !strings.Contains(e, expectedSubstr) {
  		t.Fatalf("Expected error containing %q but got: %q", expectedSubstr, e)
  	}
  }
  

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