Module: JOSE::JWA::Ed25519_CryptoRb

Extended by:
Ed25519_CryptoRb
Included in:
Ed25519_CryptoRb
Defined in:
lib/jose/jwa/ed25519_cryptorb.rb

Instance Method Summary collapse

Instance Method Details

#coerce_signing_key!(sk) ⇒ Object 



33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
 
# File 'lib/jose/jwa/ed25519_cryptorb.rb', line 33

def coerce_signing_key!(sk)
  return sk if sk.is_a?(Ed25519::SigningKey)
  sk =
    if not sk.respond_to?(:bytesize)
      begin
        JOSE::JWA::Ed25519.coerce_secret_bytes!(sk)
      rescue ArgumentError
        JOSE::JWA::Ed25519.coerce_secretkey_bytes!(sk)
      end
    else
      sk
    end
  return Ed25519::SigningKey.from_keypair(sk) if sk.bytesize === JOSE::JWA::Ed25519::C_secretkeybytes
  return Ed25519::SigningKey.new(sk)
end

#coerce_verify_key!(pk) ⇒ Object 



49
50
51
52
53
 
# File 'lib/jose/jwa/ed25519_cryptorb.rb', line 49

def coerce_verify_key!(pk)
  return pk if pk.is_a?(Ed25519::VerifyKey)
  pk = JOSE::JWA::Ed25519.coerce_publickey_bytes!(pk) if not pk.respond_to?(:bytesize)
  return Ed25519::VerifyKey.new(pk)
end

#keypair(secret = nil) ⇒ Object 



5
6
7
8
9
10
 
# File 'lib/jose/jwa/ed25519_cryptorb.rb', line 5

def keypair(secret = nil)
  secret ||= Ed25519::SigningKey.generate()
  sk = coerce_signing_key!(secret)
  pk = sk.verify_key()
  return pk.to_bytes(), sk.keypair()
end

#sign(m, sk) ⇒ Object 



16
17
18
19
 
# File 'lib/jose/jwa/ed25519_cryptorb.rb', line 16

def sign(m, sk)
  signing_key = coerce_signing_key!(sk)
  return signing_key.sign(m)
end

#sign_ph(m, sk) ⇒ Object 



21
22
23
 
# File 'lib/jose/jwa/ed25519_cryptorb.rb', line 21

def sign_ph(m, sk)
  return sign(Digest::SHA512.digest(m), sk)
end

#sk_to_pk(sk) ⇒ Object 



12
13
14
 
# File 'lib/jose/jwa/ed25519_cryptorb.rb', line 12

def sk_to_pk(sk)
  return sk[Ed25519::KEY_SIZE..-1]
end

#verify(sig, m, pk) ⇒ Object 



25
26
27
 
# File 'lib/jose/jwa/ed25519_cryptorb.rb', line 25

def verify(sig, m, pk)
  return Ed25519::VerifyKey.new(pk).verify(sig, m)
end

#verify_ph(sig, m, pk) ⇒ Object 



29
30
31
 
# File 'lib/jose/jwa/ed25519_cryptorb.rb', line 29

def verify_ph(sig, m, pk)
  return verify(sig, Digest::SHA512.digest(m), pk)
end