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57 строки
1.1 KiB
Plaintext
57 строки
1.1 KiB
Plaintext
.\" sha1.doc - -*- Indented-Text -*- created at: Thu May 17 06:51:50 JST 2001
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** SHA1(Class)
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A class to implement the SHA1 Secure Hash Algorithm by NIST (the US'
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National Institute of Standards and Technology), described in FIPS PUB
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180-1.
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Superclass: Object
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Class Methods:
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new([str])
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sha1([str])
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Creates a new SHA1 object. If a string argument is given, it
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is added to the object. (see update.)
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Methods:
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clone
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Copies the SHA1 object.
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digest
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Returns the SHA1 hash of the added strings as a string of 20
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bytes.
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hexdigest
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Returns the SHA1 hash of the added strings as a string of 40
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hexadecimal digits. This method is equal to:
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def hexdigest
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ret = ''
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digest.each_byte {|i| ret << sprintf('%02x', i) }
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ret
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end
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update(str)
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<< str
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Updates the SHA1 object with string str. Repeated calls are
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equivalent to a single call with the concatenation of all the
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arguments, i.e. m.update(a); m.update(b) is equivalent to
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m.update(a+b) and m << a << b is equivalent to m << a+b.
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Copyright:
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sha1.c is in the public domain.
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-------------------------------------------------------
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Local variables:
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fill-column: 70
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end:
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