65b8652f26
git-svn-id: https://beef.googlecode.com/svn/trunk@1362 b87d56ec-f9c0-11de-8c8a-61c5e9addfc9
43 lines
1.4 KiB
Ruby
43 lines
1.4 KiB
Ruby
#
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# Copyright 2011 Wade Alcorn wade@bindshell.net
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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module BeEF
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module Core
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module Crypto
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# @note the minimum length of the security token
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TOKEN_MINIMUM_LENGTH = 15
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# Generate a secure random token
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# @param [Integer] len The length of the secure token
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# @return [String] Security token
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def self.secure_token(len = nil)
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# get default length from config
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config = BeEF::Core::Configuration.instance
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token_length = len || config.get('beef.crypto_default_value_length').to_i
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# type checking
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raise Exception::TypeError, "Token length is less than the minimum length enforced by the framework: #{TOKEN_MINIMUM_LENGTH}" if (token_length < TOKEN_MINIMUM_LENGTH)
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# return random hex string
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return OpenSSL::Random.random_bytes(token_length).unpack("H*")[0]
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end
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end
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end
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end
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