SodiumSeal wraps libsodium's sealed boxes.
julia> using SodiumSeal
julia> k = KeyPair()
KeyPair(...)
julia> plaintext = rand(UInt8, 4)
4-element Array{UInt8,1}:
0x72
0x01
0xbd
0x23
julia> ciphertext = seal(plaintext, k);
julia> unseal(ciphertext, k)
4-element Array{UInt8,1}:
0x72
0x01
0xbd
0x23You can also work with existing keys and Base64-encoded data.
julia> using Base64, SodiumSeal
julia> k = KeyPair("IOI7mQ2HxD6yrtVlD/HdQ0YRJVdwKfdf9+VOeuvXjDI=")
KeyPair(...)
julia> plaintext = base64encode(rand(UInt8, 4))
"qrSWSQ=="
julia> seal(plaintext, k)
"Y82B4YedK8EfA7MoBVG1GUlfq28c+khmHT1gENk8m0dyBvJlyh+wCud8JkLTrGXyAShP2w=="