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# Blowfish-ECB

Port of OpenSSL's Blowfish implementation for Ruby.

Created to workaround an issue of Ruby which prevents using deprecated OpenSSL APIs, including the Blowfish algorithm.

## Copyrights

Copyright (c) 1998-2023 The OpenSSL Project Authors

Copyright (c) 1995-1998 Eric A. Young, Tim J. Hudson

module Blowfish

  module ECB

  end

end

require_relative 'lib/cipher'

require_relative 'ecb'

require_relative 'key'

module Blowfish::ECB

  class Cipher

    # call-seq:

    #   Blowfish::ECB::Cipher.new(string) -> Cipher

    #

    # Creates a Cipher instance with given key.

    def initialize(key)

      @key = Blowfish::ECB::Key.new(key)

    end

    # call-seq:

    #   cipher.encrypt(string) -> string

    #

    # Encrypts given data.

    def encrypt(data)

      bytes = data.unpack("C*")

      pad_len = 8 - (bytes.size % 8)

      bytes.push(*([pad_len] * pad_len))

      Blowfish::ECB.encrypt(bytes.pack("C*"), @key)

    end

    # call-seq:

    #   cipher.decrypt(string) -> string

    #

    # Decrypts given data. The data must be in ASCII-8BIT encoding, since the

    # encrypted data consists of arbitrary bytes. It is a sign of a bug if the

    # encrypted data is encoded as if it was a human-readable text.

    def decrypt(data)

      if data.encoding != Encoding::ASCII_8BIT

        raise "data.encoding must be ASCII-8BIT, but got: #{data.encoding}"

      end

      decoded = Blowfish::ECB.decrypt(data, @key)

      # Last byte indicates the size of padding.

      # Strip the padding from res accordingly.

      pad_len = decoded[-1].unpack("C")[0]

      decoded[0...-pad_len]

    end

  end

end

module Blowfish::ECB::Common

  class << self

    # call-seq:

    #   encrypt(l, r, Key) -> [int, int]

    #

    # Encrypts pseudo-64bit-value (l, r) into bytes using given key.

    # Both l and r must be 32-bit integers.

    # Original: https://github.com/openssl/openssl/blob/e8e2b131ca253f9e28c511c8294e27ddbd0b60c6/crypto/bf/bf_enc.c#L30

    #

    # Note that unlike the original implementation, this method returns a new tuple representing the result

    # rather than destructively updating the input argument. 

    def encrypt(l, r, key)

      l ^= key.p[0]

      r = bf_enc(r, l, key.s, key.p[1])

      l = bf_enc(l, r, key.s, key.p[2])

      r = bf_enc(r, l, key.s, key.p[3])

      l = bf_enc(l, r, key.s, key.p[4])

      r = bf_enc(r, l, key.s, key.p[5])

      l = bf_enc(l, r, key.s, key.p[6])

      r = bf_enc(r, l, key.s, key.p[7])

      l = bf_enc(l, r, key.s, key.p[8])

      r = bf_enc(r, l, key.s, key.p[9])

      l = bf_enc(l, r, key.s, key.p[10])

      r = bf_enc(r, l, key.s, key.p[11])

      l = bf_enc(l, r, key.s, key.p[12])

      r = bf_enc(r, l, key.s, key.p[13])

      l = bf_enc(l, r, key.s, key.p[14])

      r = bf_enc(r, l, key.s, key.p[15])

      l = bf_enc(l, r, key.s, key.p[16])

      r ^= key.p[17]

      [r & 0xffffffff, l & 0xffffffff]

    end

    # call-seq:

    #   decrypt(l, r, Key) -> [int, int]

    #

    # Decrypts pseudo-64bit-value (l, r) into bytes using given key.

    # Both l and r must be 32-bit integers.

    # Original: https://github.com/openssl/openssl/blob/e8e2b131ca253f9e28c511c8294e27ddbd0b60c6/crypto/bf/bf_enc.c#L69

    #

    # Note that unlike the original implementation, this method returns a new tuple representing the result

    # rather than destructively updating the input argument. 

    def decrypt(l, r, key)

      l ^= key.p[17]

      r = bf_enc(r, l, key.s, key.p[16])

      l = bf_enc(l, r, key.s, key.p[15])

      r = bf_enc(r, l, key.s, key.p[14])

      l = bf_enc(l, r, key.s, key.p[13])

      r = bf_enc(r, l, key.s, key.p[12])

      l = bf_enc(l, r, key.s, key.p[11])

      r = bf_enc(r, l, key.s, key.p[10])

      l = bf_enc(l, r, key.s, key.p[9])

      r = bf_enc(r, l, key.s, key.p[8])

      l = bf_enc(l, r, key.s, key.p[7])

      r = bf_enc(r, l, key.s, key.p[6])

      l = bf_enc(l, r, key.s, key.p[5])

      r = bf_enc(r, l, key.s, key.p[4])

      l = bf_enc(l, r, key.s, key.p[3])

      r = bf_enc(r, l, key.s, key.p[2])

      l = bf_enc(l, r, key.s, key.p[1])

      r ^= key.p[0]

      [r & 0xffffffff, l & 0xffffffff]

    end

    private

    # call-seq:

    #    bf_enc(int, int, [int], int) -> int

    #

    # Calculates one step of the Blowfish encryption.

    # Original: https://github.com/openssl/openssl/blob/e8e2b131ca253f9e28c511c8294e27ddbd0b60c6/crypto/bf/bf_local.h#L76

    #

    # Note that due to limitation in Ruby, unlike what the original BF_ENC is doing,

    # this method returns the calculated value rather than destructively reassigning l.

    def bf_enc(l, r, s, p)

      tmp =  s[0x0000+((r>>24)&0xff)]

      tmp += s[0x0100+((r>>16)&0xff)]

      tmp ^= s[0x0200+((r>> 8)&0xff)]

      tmp += s[0x0300+((r    )&0xff)]

      l ^ p ^ (tmp & 0xffffffff)

    end

  end

end

module Blowfish::ECB

  class << self

    # call-seq:

    #   Blowfish::ECB.encrypt(string, Key) -> string

    #

    # Encrypts the data (as in byte sequence) with given key.

    # Since the data is a byte sequence, its encoding must be ASCII-8BIT. 

    def encrypt(data, key)

      if data.size % 8 != 0

        raise "data size must be multiple of 8, but got: #{data.size}"

      end

      res = ""

      0.step(data.size - 1, 8).each do |i|

        l, r = data.byteslice(i, 8).unpack("I>I>")

        res += Common.encrypt(l, r, key).pack("I>I>")

      end

      res

    end

    # call-seq:

    #   Blowfish::ECB.decrypt(string, Key) -> string

    #

    # Decrypts the data (as in byte sequence) with given key.

    # Since the data is a byte sequence, its encoding must be ASCII-8BIT. 

    def decrypt(data, key)

      if data.encoding != Encoding::ASCII_8BIT

        raise "data.encoding must be ASCII-8BIT, but got: #{data.encoding}"

      end

      if data.size % 8 != 0

        raise "data size must be multiple of 8, but got: #{data.size}"

      end

      res = ""

      0.step(data.size - 1, 8).each do |i|

        l, r = data.byteslice(i, 8).unpack("I>I>")

        res += Common.decrypt(l, r, key).pack("I>I>")

      end

      res

    end

  end

end

require_relative 'common'

module Blowfish::ECB

  class Key

    attr_reader :p, :s

    # call-seq:

    #   Blowfish::ECB::Key.new(string) -> Key

    #

    # Returns a Blowfish key object initialized with the given key.

    # Original: https://github.com/openssl/openssl/blob/456e6ca5d73972cdb4228e6c5ec9acdf19237308/crypto/bf/bf_skey.c

    def initialize(key)

      @p = [

        0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344,

        0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89,

        0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,

        0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917,

        0x9216d5d9, 0x8979fb1b

      ]

      @s = [

        0xd1310ba6, 0x98dfb5ac, 0x2ffd72db,

        0xd01adfb7,

        0xb8e1afed, 0x6a267e96, 0xba7c9045,

        0xf12c7f99,

        0x24a19947, 0xb3916cf7, 0x0801f2e2,

        0x858efc16,

        0x636920d8, 0x71574e69, 0xa458fea3,

        0xf4933d7e,

        0x0d95748f, 0x728eb658, 0x718bcd58,

        0x82154aee,

        0x7b54a41d, 0xc25a59b5, 0x9c30d539,

        0x2af26013,

        0xc5d1b023, 0x286085f0, 0xca417918,

        0xb8db38ef,

        0x8e79dcb0, 0x603a180e, 0x6c9e0e8b,

        0xb01e8a3e,

        0xd71577c1, 0xbd314b27, 0x78af2fda,

        0x55605c60,

        0xe65525f3, 0xaa55ab94, 0x57489862,

        0x63e81440,

        0x55ca396a, 0x2aab10b6, 0xb4cc5c34,

        0x1141e8ce,

        0xa15486af, 0x7c72e993, 0xb3ee1411,

        0x636fbc2a,

        0x2ba9c55d, 0x741831f6, 0xce5c3e16,

        0x9b87931e,

        0xafd6ba33, 0x6c24cf5c, 0x7a325381,

        0x28958677,

        0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b,

        0x66282193,

        0x61d809cc, 0xfb21a991, 0x487cac60,

        0x5dec8032,

        0xef845d5d, 0xe98575b1, 0xdc262302,

        0xeb651b88,

        0x23893e81, 0xd396acc5, 0x0f6d6ff3,

        0x83f44239,

        0x2e0b4482, 0xa4842004, 0x69c8f04a,

        0x9e1f9b5e,

        0x21c66842, 0xf6e96c9a, 0x670c9c61,

        0xabd388f0,

        0x6a51a0d2, 0xd8542f68, 0x960fa728,

        0xab5133a3,

        0x6eef0b6c, 0x137a3be4, 0xba3bf050,

        0x7efb2a98,

        0xa1f1651d, 0x39af0176, 0x66ca593e,

        0x82430e88,

        0x8cee8619, 0x456f9fb4, 0x7d84a5c3,

        0x3b8b5ebe,

        0xe06f75d8, 0x85c12073, 0x401a449f,

        0x56c16aa6,

        0x4ed3aa62, 0x363f7706, 0x1bfedf72,

        0x429b023d,

        0x37d0d724, 0xd00a1248, 0xdb0fead3,

        0x49f1c09b,

        0x075372c9, 0x80991b7b, 0x25d479d8,

        0xf6e8def7,

        0xe3fe501a, 0xb6794c3b, 0x976ce0bd,

        0x04c006ba,

        0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2,

        0x196a2463,

        0x68fb6faf, 0x3e6c53b5, 0x1339b2eb,

        0x3b52ec6f,

        0x6dfc511f, 0x9b30952c, 0xcc814544,

        0xaf5ebd09,

        0xbee3d004, 0xde334afd, 0x660f2807,

        0x192e4bb3,

        0xc0cba857, 0x45c8740f, 0xd20b5f39,

        0xb9d3fbdb,

        0x5579c0bd, 0x1a60320a, 0xd6a100c6,

        0x402c7279,

        0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8,

        0xdb3222f8,

        0x3c7516df, 0xfd616b15, 0x2f501ec8,

        0xad0552ab,

        0x323db5fa, 0xfd238760, 0x53317b48,

        0x3e00df82,

        0x9e5c57bb, 0xca6f8ca0, 0x1a87562e,

        0xdf1769db,

        0xd542a8f6, 0x287effc3, 0xac6732c6,

        0x8c4f5573,

        0x695b27b0, 0xbbca58c8, 0xe1ffa35d,

        0xb8f011a0,

        0x10fa3d98, 0xfd2183b8, 0x4afcb56c,

        0x2dd1d35b,

        0x9a53e479, 0xb6f84565, 0xd28e49bc,

        0x4bfb9790,

        0xe1ddf2da, 0xa4cb7e33, 0x62fb1341,

        0xcee4c6e8,

        0xef20cada, 0x36774c01, 0xd07e9efe,

        0x2bf11fb4,

        0x95dbda4d, 0xae909198, 0xeaad8e71,

        0x6b93d5a0,

        0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f,

        0x8e7594b7,

        0x8ff6e2fb, 0xf2122b64, 0x8888b812,

        0x900df01c,

        0x4fad5ea0, 0x688fc31c, 0xd1cff191,

        0xb3a8c1ad,

        0x2f2f2218, 0xbe0e1777, 0xea752dfe,

        0x8b021fa1,

        0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6,

        0xce89e299,

        0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81,

        0xd2ada8d9,

        0x165fa266, 0x80957705, 0x93cc7314,

        0x211a1477,

        0xe6ad2065, 0x77b5fa86, 0xc75442f5,

        0xfb9d35cf,

        0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3,

        0xae1e7e49,

        0x00250e2d, 0x2071b35e, 0x226800bb,

        0x57b8e0af,

        0x2464369b, 0xf009b91e, 0x5563911d,

        0x59dfa6aa,

        0x78c14389, 0xd95a537f, 0x207d5ba2,

        0x02e5b9c5,

        0x83260376, 0x6295cfa9, 0x11c81968,

        0x4e734a41,

        0xb3472dca, 0x7b14a94a, 0x1b510052,

        0x9a532915,

        0xd60f573f, 0xbc9bc6e4, 0x2b60a476,

        0x81e67400,

        0x08ba6fb5, 0x571be91f, 0xf296ec6b,

        0x2a0dd915,

        0xb6636521, 0xe7b9f9b6, 0xff34052e,

        0xc5855664,

        0x53b02d5d, 0xa99f8fa1, 0x08ba4799,

        0x6e85076a,

        0x4b7a70e9, 0xb5b32944, 0xdb75092e,

        0xc4192623,

        0xad6ea6b0, 0x49a7df7d, 0x9cee60b8,

        0x8fedb266,

        0xecaa8c71, 0x699a17ff, 0x5664526c,

        0xc2b19ee1,

        0x193602a5, 0x75094c29, 0xa0591340,

        0xe4183a3e,

        0x3f54989a, 0x5b429d65, 0x6b8fe4d6,

        0x99f73fd6,

        0xa1d29c07, 0xefe830f5, 0x4d2d38e6,

        0xf0255dc1,

        0x4cdd2086, 0x8470eb26, 0x6382e9c6,

        0x021ecc5e,

        0x09686b3f, 0x3ebaefc9, 0x3c971814,

        0x6b6a70a1,

        0x687f3584, 0x52a0e286, 0xb79c5305,

        0xaa500737,

        0x3e07841c, 0x7fdeae5c, 0x8e7d44ec,

        0x5716f2b8,

        0xb03ada37, 0xf0500c0d, 0xf01c1f04,

        0x0200b3ff,

        0xae0cf51a, 0x3cb574b2, 0x25837a58,

        0xdc0921bd,

        0xd19113f9, 0x7ca92ff6, 0x94324773,

        0x22f54701,

        0x3ae5e581, 0x37c2dadc, 0xc8b57634,

        0x9af3dda7,

        0xa9446146, 0x0fd0030e, 0xecc8c73e,

        0xa4751e41,

        0xe238cd99, 0x3bea0e2f, 0x3280bba1,

        0x183eb331,

        0x4e548b38, 0x4f6db908, 0x6f420d03,

        0xf60a04bf,

        0x2cb81290, 0x24977c79, 0x5679b072,

        0xbcaf89af,

        0xde9a771f, 0xd9930810, 0xb38bae12,

        0xdccf3f2e,

        0x5512721f, 0x2e6b7124, 0x501adde6,

        0x9f84cd87,

        0x7a584718, 0x7408da17, 0xbc9f9abc,

        0xe94b7d8c,

        0xec7aec3a, 0xdb851dfa, 0x63094366,

        0xc464c3d2,

        0xef1c1847, 0x3215d908, 0xdd433b37,

        0x24c2ba16,

        0x12a14d43, 0x2a65c451, 0x50940002,

        0x133ae4dd,

        0x71dff89e, 0x10314e55, 0x81ac77d6,

        0x5f11199b,

        0x043556f1, 0xd7a3c76b, 0x3c11183b,

        0x5924a509,

        0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c,

        0x1e153c6e,

        0x86e34570, 0xeae96fb1, 0x860e5e0a,

        0x5a3e2ab3,

        0x771fe71c, 0x4e3d06fa, 0x2965dcb9,

        0x99e71d0f,

        0x803e89d6, 0x5266c825, 0x2e4cc978,

        0x9c10b36a,

        0xc6150eba, 0x94e2ea78, 0xa5fc3c53,

        0x1e0a2df4,

        0xf2f74ea7, 0x361d2b3d, 0x1939260f,

        0x19c27960,

        0x5223a708, 0xf71312b6, 0xebadfe6e,

        0xeac31f66,

        0xe3bc4595, 0xa67bc883, 0xb17f37d1,

        0x018cff28,

        0xc332ddef, 0xbe6c5aa5, 0x65582185,

        0x68ab9802,

        0xeecea50f, 0xdb2f953b, 0x2aef7dad,

        0x5b6e2f84,

        0x1521b628, 0x29076170, 0xecdd4775,

        0x619f1510,

        0x13cca830, 0xeb61bd96, 0x0334fe1e,

        0xaa0363cf,

        0xb5735c90, 0x4c70a239, 0xd59e9e0b,

        0xcbaade14,

        0xeecc86bc, 0x60622ca7, 0x9cab5cab,

        0xb2f3846e,

        0x648b1eaf, 0x19bdf0ca, 0xa02369b9,

        0x655abb50,

        0x40685a32, 0x3c2ab4b3, 0x319ee9d5,

        0xc021b8f7,

        0x9b540b19, 0x875fa099, 0x95f7997e,

        0x623d7da8,

        0xf837889a, 0x97e32d77, 0x11ed935f,

        0x16681281,

        0x0e358829, 0xc7e61fd6, 0x96dedfa1,

        0x7858ba99,

        0x57f584a5, 0x1b227263, 0x9b83c3ff,

        0x1ac24696,

        0xcdb30aeb, 0x532e3054, 0x8fd948e4,

        0x6dbc3128,

        0x58ebf2ef, 0x34c6ffea, 0xfe28ed61,

        0xee7c3c73,

        0x5d4a14d9, 0xe864b7e3, 0x42105d14,

        0x203e13e0,

        0x45eee2b6, 0xa3aaabea, 0xdb6c4f15,

        0xfacb4fd0,

        0xc742f442, 0xef6abbb5, 0x654f3b1d,

        0x41cd2105,

        0xd81e799e, 0x86854dc7, 0xe44b476a,

        0x3d816250,

        0xcf62a1f2, 0x5b8d2646, 0xfc8883a0,

        0xc1c7b6a3,

        0x7f1524c3, 0x69cb7492, 0x47848a0b,

        0x5692b285,

        0x095bbf00, 0xad19489d, 0x1462b174,

        0x23820e00,

        0x58428d2a, 0x0c55f5ea, 0x1dadf43e,

        0x233f7061,

        0x3372f092, 0x8d937e41, 0xd65fecf1,

        0x6c223bdb,

        0x7cde3759, 0xcbee7460, 0x4085f2a7,

        0xce77326e,

        0xa6078084, 0x19f8509e, 0xe8efd855,

        0x61d99735,

        0xa969a7aa, 0xc50c06c2, 0x5a04abfc,

        0x800bcadc,

        0x9e447a2e, 0xc3453484, 0xfdd56705,

        0x0e1e9ec9,

        0xdb73dbd3, 0x105588cd, 0x675fda79,

        0xe3674340,

        0xc5c43465, 0x713e38d8, 0x3d28f89e,

        0xf16dff20,

        0x153e21e7, 0x8fb03d4a, 0xe6e39f2b,

        0xdb83adf7,

        0xe93d5a68, 0x948140f7, 0xf64c261c,

        0x94692934,

        0x411520f7, 0x7602d4f7, 0xbcf46b2e,

        0xd4a20068,

        0xd4082471, 0x3320f46a, 0x43b7d4b7,

        0x500061af,

        0x1e39f62e, 0x97244546, 0x14214f74,

        0xbf8b8840,

        0x4d95fc1d, 0x96b591af, 0x70f4ddd3,

        0x66a02f45,

        0xbfbc09ec, 0x03bd9785, 0x7fac6dd0,

        0x31cb8504,

        0x96eb27b3, 0x55fd3941, 0xda2547e6,

        0xabca0a9a,

        0x28507825, 0x530429f4, 0x0a2c86da,

        0xe9b66dfb,

        0x68dc1462, 0xd7486900, 0x680ec0a4,

        0x27a18dee,

        0x4f3ffea2, 0xe887ad8c, 0xb58ce006,

        0x7af4d6b6,

        0xaace1e7c, 0xd3375fec, 0xce78a399,

        0x406b2a42,

        0x20fe9e35, 0xd9f385b9, 0xee39d7ab,

        0x3b124e8b,

        0x1dc9faf7, 0x4b6d1856, 0x26a36631,

        0xeae397b2,

        0x3a6efa74, 0xdd5b4332, 0x6841e7f7,

        0xca7820fb,

        0xfb0af54e, 0xd8feb397, 0x454056ac,

        0xba489527,

        0x55533a3a, 0x20838d87, 0xfe6ba9b7,

        0xd096954b,

        0x55a867bc, 0xa1159a58, 0xcca92963,

        0x99e1db33,

        0xa62a4a56, 0x3f3125f9, 0x5ef47e1c,

        0x9029317c,

        0xfdf8e802, 0x04272f70, 0x80bb155c,

        0x05282ce3,

        0x95c11548, 0xe4c66d22, 0x48c1133f,

        0xc70f86dc,

        0x07f9c9ee, 0x41041f0f, 0x404779a4,

        0x5d886e17,

        0x325f51eb, 0xd59bc0d1, 0xf2bcc18f,

        0x41113564,

        0x257b7834, 0x602a9c60, 0xdff8e8a3,

        0x1f636c1b,

        0x0e12b4c2, 0x02e1329e, 0xaf664fd1,

        0xcad18115,

        0x6b2395e0, 0x333e92e1, 0x3b240b62,

        0xeebeb922,

        0x85b2a20e, 0xe6ba0d99, 0xde720c8c,

        0x2da2f728,

        0xd0127845, 0x95b794fd, 0x647d0862,

        0xe7ccf5f0,

        0x5449a36f, 0x877d48fa, 0xc39dfd27,

        0xf33e8d1e,

        0x0a476341, 0x992eff74, 0x3a6f6eab,

        0xf4f8fd37,

        0xa812dc60, 0xa1ebddf8, 0x991be14c,

        0xdb6e6b0d,

        0xc67b5510, 0x6d672c37, 0x2765d43b,

        0xdcd0e804,

        0xf1290dc7, 0xcc00ffa3, 0xb5390f92,

        0x690fed0b,

        0x667b9ffb, 0xcedb7d9c, 0xa091cf0b,

        0xd9155ea3,

        0xbb132f88, 0x515bad24, 0x7b9479bf,

        0x763bd6eb,

        0x37392eb3, 0xcc115979, 0x8026e297,

        0xf42e312d,

        0x6842ada7, 0xc66a2b3b, 0x12754ccc,

        0x782ef11c,

        0x6a124237, 0xb79251e7, 0x06a1bbe6,

        0x4bfb6350,

        0x1a6b1018, 0x11caedfa, 0x3d25bdd8,

        0xe2e1c3c9,

        0x44421659, 0x0a121386, 0xd90cec6e,

        0xd5abea2a,

        0x64af674e, 0xda86a85f, 0xbebfe988,

        0x64e4c3fe,

        0x9dbc8057, 0xf0f7c086, 0x60787bf8,

        0x6003604d,

        0xd1fd8346, 0xf6381fb0, 0x7745ae04,

        0xd736fccc,

        0x83426b33, 0xf01eab71, 0xb0804187,

        0x3c005e5f,

        0x77a057be, 0xbde8ae24, 0x55464299,

        0xbf582e61,

        0x4e58f48f, 0xf2ddfda2, 0xf474ef38,

        0x8789bdc2,

        0x5366f9c3, 0xc8b38e74, 0xb475f255,

        0x46fcd9b9,

        0x7aeb2661, 0x8b1ddf84, 0x846a0e79,

        0x915f95e2,

        0x466e598e, 0x20b45770, 0x8cd55591,

        0xc902de4c,

        0xb90bace1, 0xbb8205d0, 0x11a86248,

        0x7574a99e,

        0xb77f19b6, 0xe0a9dc09, 0x662d09a1,

        0xc4324633,

        0xe85a1f02, 0x09f0be8c, 0x4a99a025,

        0x1d6efe10,

        0x1ab93d1d, 0x0ba5a4df, 0xa186f20f,

        0x2868f169,

        0xdcb7da83, 0x573906fe, 0xa1e2ce9b,

        0x4fcd7f52,

        0x50115e01, 0xa70683fa, 0xa002b5c4,

        0x0de6d027,

        0x9af88c27, 0x773f8641, 0xc3604c06,

        0x61a806b5,

        0xf0177a28, 0xc0f586e0, 0x006058aa,

        0x30dc7d62,

        0x11e69ed7, 0x2338ea63, 0x53c2dd94,

        0xc2c21634,

        0xbbcbee56, 0x90bcb6de, 0xebfc7da1,

        0xce591d76,

        0x6f05e409, 0x4b7c0188, 0x39720a3d,

        0x7c927c24,

        0x86e3725f, 0x724d9db9, 0x1ac15bb4,

        0xd39eb8fc,

        0xed545578, 0x08fca5b5, 0xd83d7cd3,

        0x4dad0fc4,

        0x1e50ef5e, 0xb161e6f8, 0xa28514d9,

        0x6c51133c,

        0x6fd5c7e7, 0x56e14ec4, 0x362abfce,

        0xddc6c837,

        0xd79a3234, 0x92638212, 0x670efa8e,

        0x406000e0,

        0x3a39ce37, 0xd3faf5cf, 0xabc27737,

        0x5ac52d1b,

        0x5cb0679e, 0x4fa33742, 0xd3822740,

        0x99bc9bbe,

        0xd5118e9d, 0xbf0f7315, 0xd62d1c7e,

        0xc700c47b,

        0xb78c1b6b, 0x21a19045, 0xb26eb1be,

        0x6a366eb4,

        0x5748ab2f, 0xbc946e79, 0xc6a376d2,

        0x6549c2c8,

        0x530ff8ee, 0x468dde7d, 0xd5730a1d,

        0x4cd04dc6,

        0x2939bbdb, 0xa9ba4650, 0xac9526e8,

        0xbe5ee304,

        0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2,

        0x9a86ee22,

        0xc089c2b8, 0x43242ef6, 0xa51e03aa,

        0x9cf2d0a4,

        0x83c061ba, 0x9be96a4d, 0x8fe51550,

        0xba645bd6,

        0x2826a2f9, 0xa73a3ae1, 0x4ba99586,

        0xef5562e9,

        0xc72fefd3, 0xf752f7da, 0x3f046f69,

        0x77fa0a59,

        0x80e4a915, 0x87b08601, 0x9b09e6ad,

        0x3b3ee593,

        0xe990fd5a, 0x9e34d797, 0x2cf0b7d9,

        0x022b8b51,

        0x96d5ac3a, 0x017da67d, 0xd1cf3ed6,

        0x7c7d2d28,

        0x1f9f25cf, 0xadf2b89b, 0x5ad6b472,

        0x5a88f54c,

        0xe029ac71, 0xe019a5e6, 0x47b0acfd,

        0xed93fa9b,

        0xe8d3c48d, 0x283b57cc, 0xf8d56629,

        0x79132e28,

        0x785f0191, 0xed756055, 0xf7960e44,

        0xe3d35e8c,

        0x15056dd4, 0x88f46dba, 0x03a16125,

        0x0564f0bd,

        0xc3eb9e15, 0x3c9057a2, 0x97271aec,

        0xa93a072a,

        0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb,

        0x26dcf319,

        0x7533d928, 0xb155fdf5, 0x03563482,

        0x8aba3cbb,

        0x28517711, 0xc20ad9f8, 0xabcc5167,

        0xccad925f,

        0x4de81751, 0x3830dc8e, 0x379d5862,

        0x9320f991,

        0xea7a90c2, 0xfb3e7bce, 0x5121ce64,

        0x774fbe32,

        0xa8b6e37e, 0xc3293d46, 0x48de5369,

        0x6413e680,

        0xa2ae0810, 0xdd6db224, 0x69852dfd,

        0x09072166,

        0xb39a460a, 0x6445c0dd, 0x586cdecf,

        0x1c20c8ae,

        0x5bbef7dd, 0x1b588d40, 0xccd2017f,

        0x6bb4e3bb,

        0xdda26a7e, 0x3a59ff45, 0x3e350a44,

        0xbcb4cdd5,

        0x72eacea8, 0xfa6484bb, 0x8d6612ae,

        0xbf3c6f47,

        0xd29be463, 0x542f5d9e, 0xaec2771b,

        0xf64e6370,

        0x740e0d8d, 0xe75b1357, 0xf8721671,

        0xaf537d5d,

        0x4040cb08, 0x4eb4e2cc, 0x34d2466a,

        0x0115af84,

        0xe1b00428, 0x95983a1d, 0x06b89fb4,

        0xce6ea048,

        0x6f3f3b82, 0x3520ab82, 0x011a1d4b,

        0x277227f8,

        0x611560b1, 0xe7933fdc, 0xbb3a792b,

        0x344525bd,

        0xa08839e1, 0x51ce794b, 0x2f32c9b7,

        0xa01fbac9,

        0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3,

        0xa1e8aac7,

        0x1a908749, 0xd44fbd9a, 0xd0dadecb,

        0xd50ada38,

        0x0339c32a, 0xc6913667, 0x8df9317c,

        0xe0b12b4f,

        0xf79e59b7, 0x43f5bb3a, 0xf2d519ff,

        0x27d9459c,

        0xbf97222c, 0x15e6fc2a, 0x0f91fc71,

        0x9b941525,

        0xfae59361, 0xceb69ceb, 0xc2a86459,

        0x12baa8d1,

        0xb6c1075e, 0xe3056a0c, 0x10d25065,

        0xcb03a442,

        0xe0ec6e0e, 0x1698db3b, 0x4c98a0be,

        0x3278e964,

        0x9f1f9532, 0xe0d392df, 0xd3a0342b,

        0x8971f21e,

        0x1b0a7441, 0x4ba3348c, 0xc5be7120,

        0xc37632d8,

        0xdf359f8d, 0x9b992f2e, 0xe60b6f47,

        0x0fe3f11d,

        0xe54cda54, 0x1edad891, 0xce6279cf,

        0xcd3e7e6f,

        0x1618b166, 0xfd2c1d05, 0x848fd2c5,

        0xf6fb2299,

        0xf523f357, 0xa6327623, 0x93a83531,

        0x56cccd02,

        0xacf08162, 0x5a75ebb5, 0x6e163697,

        0x88d273cc,

        0xde966292, 0x81b949d0, 0x4c50901b,

        0x71c65614,

        0xe6c6c7bd, 0x327a140a, 0x45e1d006,

        0xc3f27b9a,

        0xc9aa53fd, 0x62a80f00, 0xbb25bfe2,

        0x35bdd2f6,

        0x71126905, 0xb2040222, 0xb6cbcf7c,

        0xcd769c2b,

        0x53113ec0, 0x1640e3d3, 0x38abbd60,

        0x2547adf0,

        0xba38209c, 0xf746ce76, 0x77afa1c5,

        0x20756060,

        0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0,

        0x4cf9aa7e,

        0x1948c25c, 0x02fb8a8c, 0x01c36ae4,

        0xd6ebe1f9,

        0x90d4f869, 0xa65cdea0, 0x3f09252d,

        0xc208e69f,

        0xb74e6132, 0xce77e25b, 0x578fdfe3,

        0x3ac372e6,

      ]

      d_base = key.bytes.slice(0, (16 + 2) * 4)

      d = d_base.dup

      (16 + 2).times do |i|

        ri = d.shift

        d = d_base.dup if d.empty?

        ri <<= 8

        ri |= d.shift

        d = d_base.dup if d.empty?

        ri <<= 8

        ri |= d.shift

        d = d_base.dup if d.empty?

        ri <<= 8

        ri |= d.shift

        d = d_base.dup if d.empty?

        @p[i] ^= ri

      end

      l, r = [0, 0]

      0.step(16 + 2 - 1, 2) do |i|

        l, r = Common::encrypt(l, r, self)

        @p[i] = l

        @p[i+1] = r

      end

      0.step(4 * 256 - 1, 2) do |i|

        l, r = Common::encrypt(l, r, self)

        @s[i] = l

        @s[i+1] = r

      end

      @p.freeze

      @s.freeze

    end

  end

end

require 'test/unit'

require 'blowfish_ecb'

class CipherTest < Test::Unit::TestCase

  def test_identity

    cipher = Blowfish::ECB::Cipher.new("cipher_test")

    ["hogefugahige", "1234567890", (1..255).to_a.pack("C*"), "", "1"].each do |data|

      assert_equal(data, cipher.decrypt(cipher.encrypt(data)), "Failed at #{data}")

    end

  end

end

require 'test/unit'

require 'blowfish_ecb'

require 'pp'

# Test cases taken from OpenSSL's Blowfish implementation

# https://github.com/openssl/openssl/blob/master/test/bftest.c

class KeyTest < Test::Unit::TestCase

  def test_initialize

    key = Blowfish::ECB::Key.new("foobar")

    assert_not_nil(key)

  end

  def test_set_key

    key = [0xf0, 0xe1, 0xd2, 0xc3, 0xb4, 0xa5, 0x96, 0x87,

        0x78, 0x69, 0x5a, 0x4b, 0x3c, 0x2d, 0x1e, 0x0f,

        0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,

        0x88

    ]

    data = [0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10].pack("C*")

    expected = [

      [0xF9, 0xAD, 0x59, 0x7C, 0x49, 0xDB, 0x00, 0x5E],

      [0xE9, 0x1D, 0x21, 0xC1, 0xD9, 0x61, 0xA6, 0xD6],

      [0xE9, 0xC2, 0xB7, 0x0A, 0x1B, 0xC6, 0x5C, 0xF3],

      [0xBE, 0x1E, 0x63, 0x94, 0x08, 0x64, 0x0F, 0x05],

      [0xB3, 0x9E, 0x44, 0x48, 0x1B, 0xDB, 0x1E, 0x6E],

      [0x94, 0x57, 0xAA, 0x83, 0xB1, 0x92, 0x8C, 0x0D],

      [0x8B, 0xB7, 0x70, 0x32, 0xF9, 0x60, 0x62, 0x9D],

      [0xE8, 0x7A, 0x24, 0x4E, 0x2C, 0xC8, 0x5E, 0x82],

      [0x15, 0x75, 0x0E, 0x7A, 0x4F, 0x4E, 0xC5, 0x77],

      [0x12, 0x2B, 0xA7, 0x0B, 0x3A, 0xB6, 0x4A, 0xE0],

      [0x3A, 0x83, 0x3C, 0x9A, 0xFF, 0xC5, 0x37, 0xF6],

      [0x94, 0x09, 0xDA, 0x87, 0xA9, 0x0F, 0x6B, 0xF2],

      [0x88, 0x4F, 0x80, 0x62, 0x50, 0x60, 0xB8, 0xB4],

      [0x1F, 0x85, 0x03, 0x1C, 0x19, 0xE1, 0x19, 0x68],

      [0x79, 0xD9, 0x37, 0x3A, 0x71, 0x4C, 0xA3, 0x4F],

      [0x93, 0x14, 0x28, 0x87, 0xEE, 0x3B, 0xE1, 0x5C],

      [0x03, 0x42, 0x9E, 0x83, 0x8C, 0xE2, 0xD1, 0x4B],

      [0xA4, 0x29, 0x9E, 0x27, 0x46, 0x9F, 0xF6, 0x7B],

      [0xAF, 0xD5, 0xAE, 0xD1, 0xC1, 0xBC, 0x96, 0xA8],

      [0x10, 0x85, 0x1C, 0x0E, 0x38, 0x58, 0xDA, 0x9F],

      [0xE6, 0xF5, 0x1E, 0xD7, 0x9B, 0x9D, 0xB2, 0x1F],

      [0x64, 0xA6, 0xE1, 0x4A, 0xFD, 0x36, 0xB4, 0x6F],

      [0x80, 0xC7, 0xD7, 0xD4, 0x5A, 0x54, 0x79, 0xAD],

      [0x05, 0x04, 0x4B, 0x62, 0xFA, 0x52, 0xD0, 0x80],

    ]

    (0...24).each do |i|

      bf_key = Blowfish::ECB::Key.new(key[0,i+1].pack("C*"))

      enc = Blowfish::ECB.encrypt(data, bf_key)

      assert_equal(expected[i].pack("C*"), enc, "Failed at case #{i}")

      dec = Blowfish::ECB.decrypt(enc, bf_key)

      assert_equal(data, dec, "Failed at case #{i}")

    end

  end

  def test_raw

    cases = [

        {key: "abcdefghijklmnopqrstuvwxyz", data: [0x424c4f57, 0x46495348], expected: [0x324ed0fe, 0xf413a203]},

        {key: "Who is John Galt?", data: [0xfedcba98, 0x76543210], expected: [0xcc91732b, 0x8022f684]}

    ]

    cases.each do |c|

      bf_key = Blowfish::ECB::Key.new(c[:key])

      l, r = Blowfish::ECB::Common.encrypt(c[:data][0], c[:data][1], bf_key)

      assert_equal(c[:expected], [l, r])

    end

  end

end

require 'test/unit'

$LOAD_PATH.unshift(File.expand_path(File.join(__dir__, '..')))

exit Test::Unit::AutoRunner.run(true, __dir__)

require_relative 'blowfish_ecb/blowfish_ecb'

      cipher = Blowfish::ECB::Cipher.new(key)

      cipher.encrypt(str) end

      cipher = Blowfish::ECB::Cipher.new(key)

      cipher.decrypt(binary_data).force_encoding(Encoding::UTF_8) end