92ac0ef6d4
Rearrange CryptoBox. Move Sodium::Error to it's own file. Requiring individual files is now possible. Individual require now possible.
36 lines
965 B
Crystal
36 lines
965 B
Crystal
require "../lib_sodium"
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require "../key"
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class Sodium::CryptoBox
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class PublicKey < Key
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KEY_SIZE = LibSodium.crypto_box_publickeybytes
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SEAL_SIZE = LibSodium.crypto_box_sealbytes
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getter bytes : Bytes
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# :nodoc:
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# Only used by SecretKey
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def initialize
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@bytes = Bytes.new KEY_SIZE
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end
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def initialize(@bytes : Bytes)
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if bytes.bytesize != KEY_SIZE
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raise ArgumentError.new("Public key must be #{KEY_SIZE} bytes, got #{bytes.bytesize}")
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end
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end
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# Anonymously send messages to a recipient given its public key.
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# For authenticated message use `secret_key.box(recipient_public_key).encrypt`.
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def encrypt(src)
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encrypt src.to_slice
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end
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def encrypt(src : Bytes, dst : Bytes = Bytes.new(src.bytesize + SEAL_SIZE)) : Bytes
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if LibSodium.crypto_box_seal(dst, src, src.bytesize, @bytes) != 0
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raise Sodium::Error.new("crypto_box_seal")
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end
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dst
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end
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end
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end
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