class
v2_6_3 -
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- Superclass:
cDigest_Base
- 1_8_6_287
- 1_8_7_72
- 1_8_7_330
- 1_9_1_378
- 1_9_2_180
- 1_9_3_125
- 1_9_3_392
- 2_1_10 (0)
- 2_2_9 (0)
- 2_4_6 (38)
- 2_5_5 (0)
- 2_6_3 (0)
- What's this?
A class for calculating message digests using the SHA-1 Secure Hash Algorithm by NIST (the US’ National Institute of Standards and Technology), described in FIPS PUB 180-1.
See Digest::Instance for digest API.
SHA-1 calculates a digest of 160 bits (20 bytes).
Examples
require 'digest' # Compute a complete digest Digest::SHA1.hexdigest 'abc' #=> "a9993e36..." # Compute digest by chunks sha1 = Digest::SHA1.new # =>#<Digest::SHA1> sha1.update "ab" sha1 << "c" # alias for #update sha1.hexdigest # => "a9993e36..." # Use the same object to compute another digest sha1.reset sha1 << "message" sha1.hexdigest # => "6f9b9af3..."