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Maintenance Ruby 3.4 gets fixes, but no new features. Switch to Ruby 4.0 →

class method

OpenSSL.Digest

(::String name) -> singleton(::OpenSSL::Digest)
Digest(name)

Returns a Digest subclass by name

Example
require 'openssl'

OpenSSL::Digest("MD5")
# => OpenSSL::Digest::MD5

Digest("Foo")
# => NameError: wrong constant name Foo
See also #Digest .debug= .errors .debug also in 4.1 · 4.0 · 3.3 · 3.2 · 3.1 · 3.0