class Botan::PK::Sign
Public Key Sign
Operation
See {Botan::PK::PrivateKey#sign} for a simpler interface.
Public Class Methods
destroy(ptr)
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@api private
# File lib/botan/pk/op/sign.rb, line 36 def self.destroy(ptr) LibBotan.botan_pk_op_sign_destroy(ptr) end
new(key:, padding: nil)
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@param key [Botan::PK::PrivateKey] the private key @param padding [String] the padding method name
# File lib/botan/pk/op/sign.rb, line 22 def initialize(key:, padding: nil) padding ||= Botan::DEFAULT_EMSA[key.algo] unless key.instance_of?(PrivateKey) raise Botan::Error, 'Signing requires an instance of PrivateKey' end ptr = FFI::MemoryPointer.new(:pointer) flags = 0 Botan.call_ffi(:botan_pk_op_sign_create, ptr, key.ptr, padding, flags) ptr = ptr.read_pointer raise Botan::Error, 'botan_pk_op_sign_create returned NULL' if ptr.null? @ptr = FFI::AutoPointer.new(ptr, self.class.method(:destroy)) end
Public Instance Methods
finish(rng = Botan::RNG.new)
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Finalizes the signature operation.
@param rng [Botan::PK::RNG] the RNG
to use @return [String] the signature
# File lib/botan/pk/op/sign.rb, line 54 def finish(rng = Botan::RNG.new) Botan.call_ffi_with_buffer(lambda { |b, bl| LibBotan.botan_pk_op_sign_finish(@ptr, rng.ptr, b, bl) }) end
inspect()
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# File lib/botan/pk/op/sign.rb, line 60 def inspect Botan.inspect_ptr(self) end
update(msg)
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Adds data to the message currently being signed.
@param msg [String] the data to add @return [self]
# File lib/botan/pk/op/sign.rb, line 44 def update(msg) msg_buf = FFI::MemoryPointer.from_data(msg) Botan.call_ffi(:botan_pk_op_sign_update, @ptr, msg_buf, msg_buf.size) self end
Also aliased as: <<