Module: RbNaCl::SelfTest

Defined in:
lib/rbnacl/self_test.rb

Overview

Self-test performed at startup

Class Method Summary collapse

Class Method Details

.box_common_test(box) ⇒ Object

Raises:



31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
# File 'lib/rbnacl/self_test.rb', line 31

def box_common_test(box)
  nonce      = vector :box_nonce
  message    = vector :box_message
  ciphertext = vector :box_ciphertext

  raise SelfTestFailure, "failed to generate correct ciphertext" unless box.encrypt(nonce, message) == ciphertext
  raise SelfTestFailure, "failed to decrypt ciphertext correctly" unless box.decrypt(nonce, ciphertext) == message

  begin
    passed         = false
    corrupt_ct     = ciphertext.dup
    corrupt_ct[23] = " "
    box.decrypt(nonce, corrupt_ct)
  rescue CryptoError
    passed = true
  ensure
    passed || raise(SelfTestFailure, "failed to detect corrupt ciphertext")
  end
end

.box_testObject



18
19
20
21
22
23
24
# File 'lib/rbnacl/self_test.rb', line 18

def box_test
  alicepk = RbNaCl::PublicKey.new(vector(:alice_public))
  bobsk = RbNaCl::PrivateKey.new(vector(:bob_private))

  box = RbNaCl::Box.new(alicepk, bobsk)
  box_common_test(box)
end

.digital_signature_testObject



51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
# File 'lib/rbnacl/self_test.rb', line 51

def digital_signature_test
  signing_key = SigningKey.new(vector(:sign_private))
  verify_key  = signing_key.verify_key

  unless verify_key.to_s == vector(:sign_public)
    #:nocov:
    raise SelfTestFailure, "failed to generate verify key correctly"
    #:nocov:
  end

  message   = vector :sign_message
  signature = signing_key.sign(message)

  unless signature == vector(:sign_signature)
    #:nocov:
    raise SelfTestFailure, "failed to generate correct signature"
    #:nocov:
  end

  unless verify_key.verify(signature, message)
    #:nocov:
    raise SelfTestFailure, "failed to verify a valid signature"
    #:nocov:
  end

  begin
    passed = false
    bad_signature = signature[0, 63] + "0"
    verify_key.verify(bad_signature, message)
  rescue CryptoError
    passed = true
  ensure
    passed || raise(SelfTestFailure, "failed to detect corrupt ciphertext")
  end
end

.hmac_test(klass, tag) ⇒ Object

Raises:



94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
# File 'lib/rbnacl/self_test.rb', line 94

def hmac_test(klass, tag)
  authenticator = klass.new(vector("auth_key_#{klass.key_bytes}".to_sym))

  message = vector :auth_message

  raise SelfTestFailure, "#{klass} generated incorrect authentication tag" unless authenticator.auth(message) == vector(tag)
  raise SelfTestFailure, "#{klass} failed to verify authentication tag" unless authenticator.verify(vector(tag), message)

  begin
    passed = false
    authenticator.verify(vector(tag), message + " ")
  rescue CryptoError
    passed = true
  ensure
    passed || raise(SelfTestFailure, "failed to detect corrupt ciphertext")
  end
end

.secret_box_testObject



26
27
28
29
# File 'lib/rbnacl/self_test.rb', line 26

def secret_box_test
  box = SecretBox.new(vector(:secret_key))
  box_common_test(box)
end

.sha256_testObject

Raises:



87
88
89
90
91
92
# File 'lib/rbnacl/self_test.rb', line 87

def sha256_test
  message = vector :sha256_message
  digest  = vector :sha256_digest

  raise SelfTestFailure, "failed to generate a correct SHA256 digest" unless RbNaCl::Hash.sha256(message) == digest
end

.vector(name) ⇒ Object



14
15
16
# File 'lib/rbnacl/self_test.rb', line 14

def vector(name)
  [TEST_VECTORS[name]].pack("H*")
end