sodium.cr/spec/sodium/crypto_box/secret_key_spec.cr

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require "../../spec_helper"
require "../../../src/sodium/crypto_box/secret_key"
private def new_key_bytes
Sodium::CryptoBox::SecretKey.new.to_slice
end
describe Sodium::CryptoBox::SecretKey do
it "loads keys" do
key1 = Sodium::CryptoBox::SecretKey.new
key2 = Sodium::CryptoBox::SecretKey.new key1.to_slice, key1.public_key.to_slice
key1.to_slice.should eq key2.to_slice
key1.public_key.to_slice.should eq key2.public_key.to_slice
end
it "recomputes the public_key" do
key1 = Sodium::CryptoBox::SecretKey.new
key2 = Sodium::CryptoBox::SecretKey.new key1.to_slice
key1.to_slice.should eq key2.to_slice
key1.public_key.to_slice.should eq key2.public_key.to_slice
end
it "seed keys" do
seed = Bytes.new Sodium::CryptoBox::SecretKey::SEED_SIZE
key1 = Sodium::CryptoBox::SecretKey.new seed: seed
key2 = Sodium::CryptoBox::SecretKey.new seed: seed
key1.to_slice.should eq key2.to_slice
key1.public_key.to_slice.should eq key2.public_key.to_slice
end
it "authenticated easy encrypt/decrypt" do
data = "Hello World!"
# Alice is the sender
alice = Sodium::CryptoBox::SecretKey.new
# Bob is the recipient
bob = Sodium::CryptoBox::SecretKey.new
# Encrypt a message for Bob using his public key, signing it with Alice's
# secret key
box = alice.box bob.public_key
encrypted, nonce = box.encrypt_easy data
# Decrypt the message using Bob's secret key, and verify its signature against
# Alice's public key
bob.box alice.public_key do |box|
decrypted = box.decrypt_easy encrypted, nonce: nonce
String.new(decrypted).should eq(data)
end
end
it "unauthenticated seal encrypt/decrypt" do
data = "foo bar"
# Bob is the recipient
bob = Sodium::CryptoBox::SecretKey.new
# Encrypt a message for Bob using his public key. No signature.
encrypted = bob.public_key.encrypt data
# Decrypt the message using Bob's secret key.
decrypted = bob.decrypt encrypted
String.new(decrypted).should eq(data)
end
end