Module: Syde::Vault::Crypto

Defined in:
lib/syde/crypto.rb

Class Method Summary collapse

Class Method Details

.aes(mode, key, iv, text) ⇒ Object 



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# File 'lib/syde/crypto.rb', line 12

def self.aes(mode, key, iv, text)
	c = cipher.send(mode)
	c.key = digest(key)
	c.iv = iv
	c.update(text) << c.final
end

.decrypt(key, iv, ciphertext) ⇒ Object 



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# File 'lib/syde/crypto.rb', line 23

def self.decrypt(key, iv, ciphertext)
	aes(:decrypt, key, iv, ciphertext)
end

.digest(input) ⇒ Object 



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# File 'lib/syde/crypto.rb', line 27

def self.digest(input)
	OpenSSL::Digest::SHA256.digest(input)
end

.encrypt(key, iv, plaintext) ⇒ Object 



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# File 'lib/syde/crypto.rb', line 19

def self.encrypt(key, iv, plaintext)
	aes(:encrypt, key, iv, plaintext)
end

.new_iv ⇒ Object 



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# File 'lib/syde/crypto.rb', line 8

def self.new_iv
	cipher.random_iv
end

.random_bytes(length) ⇒ Object 



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# File 'lib/syde/crypto.rb', line 4

def self.random_bytes(length)
	File.open("/dev/urandom") { |f| f.read(length) }
end