Class: Net::SSH::Transport::HMAC::Abstract
- Inherits:
-
Object
- Object
- Net::SSH::Transport::HMAC::Abstract
show all
- Defined in:
- lib/net/ssh/transport/hmac/abstract.rb
Overview
The base class of all OpenSSL-based HMAC algorithm wrappers.
Instance Attribute Summary collapse
Class Method Summary
collapse
Instance Method Summary
collapse
Constructor Details
#initialize(key = nil) ⇒ Abstract
Returns a new instance of Abstract.
62
63
64
|
# File 'lib/net/ssh/transport/hmac/abstract.rb', line 62
def initialize(key=nil)
self.key = key
end
|
Instance Attribute Details
#key ⇒ Object
The key in use for this instance.
60
61
62
|
# File 'lib/net/ssh/transport/hmac/abstract.rb', line 60
def key
@key
end
|
Class Method Details
.digest_class(*v) ⇒ Object
34
35
36
37
38
39
40
41
42
43
44
|
# File 'lib/net/ssh/transport/hmac/abstract.rb', line 34
def digest_class(*v)
@digest_class = nil if !defined?(@digest_class)
if v.empty?
@digest_class = superclass.digest_class if @digest_class.nil? && superclass.respond_to?(:digest_class)
return @digest_class
elsif v.length == 1
@digest_class = v.first
else
raise ArgumentError, "wrong number of arguments (#{v.length} for 1)"
end
end
|
.key_length(*v) ⇒ Object
10
11
12
13
14
15
16
17
18
19
20
|
# File 'lib/net/ssh/transport/hmac/abstract.rb', line 10
def key_length(*v)
@key_length = nil if !defined?(@key_length)
if v.empty?
@key_length = superclass.key_length if @key_length.nil? && superclass.respond_to?(:key_length)
return @key_length
elsif v.length == 1
@key_length = v.first
else
raise ArgumentError, "wrong number of arguments (#{v.length} for 1)"
end
end
|
.mac_length(*v) ⇒ Object
22
23
24
25
26
27
28
29
30
31
32
|
# File 'lib/net/ssh/transport/hmac/abstract.rb', line 22
def mac_length(*v)
@mac_length = nil if !defined?(@mac_length)
if v.empty?
@mac_length = superclass.mac_length if @mac_length.nil? && superclass.respond_to?(:mac_length)
return @mac_length
elsif v.length == 1
@mac_length = v.first
else
raise ArgumentError, "wrong number of arguments (#{v.length} for 1)"
end
end
|
Instance Method Details
#digest(data) ⇒ Object
Compute the HMAC digest for the given data string.
73
74
75
|
# File 'lib/net/ssh/transport/hmac/abstract.rb', line 73
def digest(data)
OpenSSL::HMAC.digest(digest_class.new, key, data)[0,mac_length]
end
|
#digest_class ⇒ Object
55
56
57
|
# File 'lib/net/ssh/transport/hmac/abstract.rb', line 55
def digest_class
self.class.digest_class
end
|
#key_length ⇒ Object
47
48
49
|
# File 'lib/net/ssh/transport/hmac/abstract.rb', line 47
def key_length
self.class.key_length
end
|
#mac_length ⇒ Object
51
52
53
|
# File 'lib/net/ssh/transport/hmac/abstract.rb', line 51
def mac_length
self.class.mac_length
end
|