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Class SHA1
A class to implement the SHA1 Secure Hash Algorithm by NIST (the US'
National Institute of Standards and Technology), described in FIPS PUB
180-1.
Superclass: Object
Class Methods:
new([str])
sha1([str])
Creates a new SHA1 object. If a string argument is given, it
is added to the object. (see update.)
Methods:
clone
Copies the SHA1 object.
digest
Returns the SHA1 hash of the added strings as a string of 20 bytes.
hexdigest
Returns the SHA1 hash of the added strings as a string of 40
hexadecimal digits. This method is equal to:
def hexdigest
ret = ''
digest.each_byte {|i| ret << sprintf('%02x', i) }
ret
end
update(str)
<< str
Updates the SHA1 object with string str. Repeated calls are
equivalent to a single call with the concatenation of all the
arguments, i.e. m.update(a); m.update(b) is equivalent to
m.update(a+b) and m << a << b is equivalent to m << a+b.
Copyright:
README and sha1-ruby.c are derived from the Ruby source and so fall
under the same license as Ruby. The rest of this package is in the
public domain.
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