The AesKeywrapNettle Module.jl

AesKeywrapNettle

AES keywrap in Julia 
(uses https://github.com/JuliaCrypto/Nettle.jl for AES)

aes_unwrap_key(kek, wrapped[, iv])

Unwraps the key "plaintext" using the key "kek" with the "Advanced Encryption Standard (AES) Key Wrap Algorithm" The initial vector "iv" is used for integrity check.

Arguments

• kek::Array{UInt8}: the key-encryption key, possible key lengths for "kek" are 128 bit, 192 bit, and 192 bit
• wrapped::Array{UInt8}: the wrapped key (or plaintext) to wrap, the length of "wrapped" must be a multiple of 64 bit
• iv::Array{UInt8}: the 64-bit initial value used during the wrapping process; If no iv is specified, the default iv [0xa6, 0xa6, 0xa6, 0xa6, 0xa6, 0xa6, 0xa6, 0xa6] from rfc3394 is used.

Examples

DocTestSetup = quote
    using AesKeywrapNettle
end

julia> b = aes_unwrap_key([0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f], [0x1f, 0xa6, 0x8b, 0x0a, 0x81, 0x12, 0xb4, 0x47, 0xae, 0xf3, 0x4b, 0xd8, 0xfb, 0x5a, 0x7b, 0x82, 0x9d, 0x3e, 0x86, 0x23, 0x71, 0xd2, 0xcf, 0xe5], [0xa6, 0xa6, 0xa6, 0xa6, 0xa6, 0xa6, 0xa6, 0xa6])
16-element Vector{UInt8}:
 0x00
 0x11
 0x22
 0x33
 0x44
 0x55
 0x66
 0x77
 0x88
 0x99
 0xaa
 0xbb
 0xcc
 0xdd
 0xee
 0xff

aes_wrap_key(kek, plaintext[, iv])

Wraps the key "plaintext" using the key "kek" und the initial vector "iv" with the "Advanced Encryption Standard (AES) Key Wrap Algorithm"

Arguments

• kek::Array{UInt8}: the key-encryption key, possible key lengths for "kek" are 128 bit, 192 bit, and 192 bit
• plaintext::Array{UInt8}: the key (or plaintext) to wrap, the length of "plaintext" must be a multiple of 64 bit
• iv::Array{UInt8}: the 64-bit initial value used during the wrapping process; If no iv is specified, the default iv [0xa6, 0xa6, 0xa6, 0xa6, 0xa6, 0xa6, 0xa6, 0xa6] from rfc3394 is used.

Examples

DocTestSetup = quote
    using AesKeywrapNettle
end

julia> a = aes_wrap_key([0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f], [0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff], [0xa6, 0xa6, 0xa6, 0xa6, 0xa6, 0xa6, 0xa6, 0xa6])
24-element Vector{UInt8}:
 0x1f
 0xa6
 0x8b
 0x0a
 0x81
 0x12
 0xb4
 0x47
 0xae
 0xf3
    ⋮
 0x82
 0x9d
 0x3e
 0x86
 0x23
 0x71
 0xd2
 0xcf
 0xe5