Module: Duse::Encryption

Defined in:
lib/duse/encryption.rb

Class Method Summary collapse

Class Method Details

.decode(encoded_text) ⇒ Object 



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# File 'lib/duse/encryption.rb', line 34

def decode(encoded_text)
  Base64.decode64(encoded_text.encode('ascii-8bit')).force_encoding('utf-8')
end

.decrypt(private_key, text) ⇒ Object 



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# File 'lib/duse/encryption.rb', line 18

def decrypt(private_key, text)
  private_key.private_decrypt(decode(text)).force_encoding('utf-8')
end

.digest ⇒ Object 



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# File 'lib/duse/encryption.rb', line 26

def digest
  OpenSSL::Digest::SHA256.new
end

.encode(plain_text) ⇒ Object 



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# File 'lib/duse/encryption.rb', line 30

def encode(plain_text)
  Base64.encode64(plain_text).encode('utf-8')
end

.encrypt(private_key, public_key, text) ⇒ Object 



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# File 'lib/duse/encryption.rb', line 8

def encrypt(private_key, public_key, text)
  encrypted = public_key.public_encrypt text.force_encoding('ascii-8bit')
  signature = sign(private_key, encrypted)
  [encode(encrypted), signature]
end

.sign(private_key, text) ⇒ Object 



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# File 'lib/duse/encryption.rb', line 14

def sign(private_key, text)
  encode(private_key.sign(digest, text))
end

.verify(public_key, signature, encrypted) ⇒ Object 



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# File 'lib/duse/encryption.rb', line 22

def verify(public_key, signature, encrypted)
  public_key.verify digest, decode(signature), decode(encrypted)
end