Remove cryptography

As discussed in #694, vim encryption uses old,
obsolete algorithms that are poorly implemented.
Since insecure cryptography is worse than no
cryptgraphy, the community voted in favor of
removing all crypto.

Various alternatives to the old crypto is
being discussed in #701.

Closes #694.

1 files changed, 0 insertions, 622 deletions

diff --git a/src/nvim/blowfish.c b/src/nvim/blowfish.c
deleted file mode 100644
index d48724ada4..0000000000
--- a/src/nvim/blowfish.c
+++ /dev/null
@@ -1,622 +0,0 @@
-/*
- * VIM - Vi IMproved	by Bram Moolenaar
- *
- * Do ":help uganda"  in Vim to read copying and usage conditions.
- * Do ":help credits" in Vim to see a list of people who contributed.
- * See README.txt for an overview of the Vim source code.
- *
- * Blowfish encryption for Vim; in Blowfish cipher feedback mode.
- * Contributed by Mohsin Ahmed, http://www.cs.albany.edu/~mosh
- * Based on http://www.schneier.com/blowfish.html by Bruce Schneier.
- */
-
-#include <string.h>
-
-#include "nvim/vim.h"
-#include "nvim/blowfish.h"
-#include "nvim/message.h"
-#include "nvim/sha256.h"
-
-#define ARRAY_LENGTH(A) (sizeof(A) / sizeof(A[0]))
-
-#define BF_BLOCK    8
-#define BF_BLOCK_MASK 7
-#define BF_CFB_LEN (8 * (BF_BLOCK))
-
-typedef union {
-  uint32_t ul[2];
-  char_u uc[8];
-} block8;
-
-
-static void bf_e_block(uint32_t *p_xl, uint32_t *p_xr);
-static void bf_e_cblock(char_u *block);
-static int bf_check_tables(uint32_t a_ipa[18], uint32_t a_sbi[4][256],
-                           uint32_t val);
-static int bf_self_test(void);
-
-/* Blowfish code */
-static uint32_t pax[18];
-static uint32_t ipa[18] = {
-  0x243f6a88u, 0x85a308d3u, 0x13198a2eu,
-  0x03707344u, 0xa4093822u, 0x299f31d0u,
-  0x082efa98u, 0xec4e6c89u, 0x452821e6u,
-  0x38d01377u, 0xbe5466cfu, 0x34e90c6cu,
-  0xc0ac29b7u, 0xc97c50ddu, 0x3f84d5b5u,
-  0xb5470917u, 0x9216d5d9u, 0x8979fb1bu
-};
-
-static uint32_t sbx[4][256];
-static uint32_t sbi[4][256] = {
-  {0xd1310ba6u, 0x98dfb5acu, 0x2ffd72dbu, 0xd01adfb7u,
-   0xb8e1afedu, 0x6a267e96u, 0xba7c9045u, 0xf12c7f99u,
-   0x24a19947u, 0xb3916cf7u, 0x0801f2e2u, 0x858efc16u,
-   0x636920d8u, 0x71574e69u, 0xa458fea3u, 0xf4933d7eu,
-   0x0d95748fu, 0x728eb658u, 0x718bcd58u, 0x82154aeeu,
-   0x7b54a41du, 0xc25a59b5u, 0x9c30d539u, 0x2af26013u,
-   0xc5d1b023u, 0x286085f0u, 0xca417918u, 0xb8db38efu,
-   0x8e79dcb0u, 0x603a180eu, 0x6c9e0e8bu, 0xb01e8a3eu,
-   0xd71577c1u, 0xbd314b27u, 0x78af2fdau, 0x55605c60u,
-   0xe65525f3u, 0xaa55ab94u, 0x57489862u, 0x63e81440u,
-   0x55ca396au, 0x2aab10b6u, 0xb4cc5c34u, 0x1141e8ceu,
-   0xa15486afu, 0x7c72e993u, 0xb3ee1411u, 0x636fbc2au,
-   0x2ba9c55du, 0x741831f6u, 0xce5c3e16u, 0x9b87931eu,
-   0xafd6ba33u, 0x6c24cf5cu, 0x7a325381u, 0x28958677u,
-   0x3b8f4898u, 0x6b4bb9afu, 0xc4bfe81bu, 0x66282193u,
-   0x61d809ccu, 0xfb21a991u, 0x487cac60u, 0x5dec8032u,
-   0xef845d5du, 0xe98575b1u, 0xdc262302u, 0xeb651b88u,
-   0x23893e81u, 0xd396acc5u, 0x0f6d6ff3u, 0x83f44239u,
-   0x2e0b4482u, 0xa4842004u, 0x69c8f04au, 0x9e1f9b5eu,
-   0x21c66842u, 0xf6e96c9au, 0x670c9c61u, 0xabd388f0u,
-   0x6a51a0d2u, 0xd8542f68u, 0x960fa728u, 0xab5133a3u,
-   0x6eef0b6cu, 0x137a3be4u, 0xba3bf050u, 0x7efb2a98u,
-   0xa1f1651du, 0x39af0176u, 0x66ca593eu, 0x82430e88u,
-   0x8cee8619u, 0x456f9fb4u, 0x7d84a5c3u, 0x3b8b5ebeu,
-   0xe06f75d8u, 0x85c12073u, 0x401a449fu, 0x56c16aa6u,
-   0x4ed3aa62u, 0x363f7706u, 0x1bfedf72u, 0x429b023du,
-   0x37d0d724u, 0xd00a1248u, 0xdb0fead3u, 0x49f1c09bu,
-   0x075372c9u, 0x80991b7bu, 0x25d479d8u, 0xf6e8def7u,
-   0xe3fe501au, 0xb6794c3bu, 0x976ce0bdu, 0x04c006bau,
-   0xc1a94fb6u, 0x409f60c4u, 0x5e5c9ec2u, 0x196a2463u,
-   0x68fb6fafu, 0x3e6c53b5u, 0x1339b2ebu, 0x3b52ec6fu,
-   0x6dfc511fu, 0x9b30952cu, 0xcc814544u, 0xaf5ebd09u,
-   0xbee3d004u, 0xde334afdu, 0x660f2807u, 0x192e4bb3u,
-   0xc0cba857u, 0x45c8740fu, 0xd20b5f39u, 0xb9d3fbdbu,
-   0x5579c0bdu, 0x1a60320au, 0xd6a100c6u, 0x402c7279u,
-   0x679f25feu, 0xfb1fa3ccu, 0x8ea5e9f8u, 0xdb3222f8u,
-   0x3c7516dfu, 0xfd616b15u, 0x2f501ec8u, 0xad0552abu,
-   0x323db5fau, 0xfd238760u, 0x53317b48u, 0x3e00df82u,
-   0x9e5c57bbu, 0xca6f8ca0u, 0x1a87562eu, 0xdf1769dbu,
-   0xd542a8f6u, 0x287effc3u, 0xac6732c6u, 0x8c4f5573u,
-   0x695b27b0u, 0xbbca58c8u, 0xe1ffa35du, 0xb8f011a0u,
-   0x10fa3d98u, 0xfd2183b8u, 0x4afcb56cu, 0x2dd1d35bu,
-   0x9a53e479u, 0xb6f84565u, 0xd28e49bcu, 0x4bfb9790u,
-   0xe1ddf2dau, 0xa4cb7e33u, 0x62fb1341u, 0xcee4c6e8u,
-   0xef20cadau, 0x36774c01u, 0xd07e9efeu, 0x2bf11fb4u,
-   0x95dbda4du, 0xae909198u, 0xeaad8e71u, 0x6b93d5a0u,
-   0xd08ed1d0u, 0xafc725e0u, 0x8e3c5b2fu, 0x8e7594b7u,
-   0x8ff6e2fbu, 0xf2122b64u, 0x8888b812u, 0x900df01cu,
-   0x4fad5ea0u, 0x688fc31cu, 0xd1cff191u, 0xb3a8c1adu,
-   0x2f2f2218u, 0xbe0e1777u, 0xea752dfeu, 0x8b021fa1u,
-   0xe5a0cc0fu, 0xb56f74e8u, 0x18acf3d6u, 0xce89e299u,
-   0xb4a84fe0u, 0xfd13e0b7u, 0x7cc43b81u, 0xd2ada8d9u,
-   0x165fa266u, 0x80957705u, 0x93cc7314u, 0x211a1477u,
-   0xe6ad2065u, 0x77b5fa86u, 0xc75442f5u, 0xfb9d35cfu,
-   0xebcdaf0cu, 0x7b3e89a0u, 0xd6411bd3u, 0xae1e7e49u,
-   0x00250e2du, 0x2071b35eu, 0x226800bbu, 0x57b8e0afu,
-   0x2464369bu, 0xf009b91eu, 0x5563911du, 0x59dfa6aau,
-   0x78c14389u, 0xd95a537fu, 0x207d5ba2u, 0x02e5b9c5u,
-   0x83260376u, 0x6295cfa9u, 0x11c81968u, 0x4e734a41u,
-   0xb3472dcau, 0x7b14a94au, 0x1b510052u, 0x9a532915u,
-   0xd60f573fu, 0xbc9bc6e4u, 0x2b60a476u, 0x81e67400u,
-   0x08ba6fb5u, 0x571be91fu, 0xf296ec6bu, 0x2a0dd915u,
-   0xb6636521u, 0xe7b9f9b6u, 0xff34052eu, 0xc5855664u,
-   0x53b02d5du, 0xa99f8fa1u, 0x08ba4799u, 0x6e85076au},
-  {0x4b7a70e9u, 0xb5b32944u, 0xdb75092eu, 0xc4192623u,
-   0xad6ea6b0u, 0x49a7df7du, 0x9cee60b8u, 0x8fedb266u,
-   0xecaa8c71u, 0x699a17ffu, 0x5664526cu, 0xc2b19ee1u,
-   0x193602a5u, 0x75094c29u, 0xa0591340u, 0xe4183a3eu,
-   0x3f54989au, 0x5b429d65u, 0x6b8fe4d6u, 0x99f73fd6u,
-   0xa1d29c07u, 0xefe830f5u, 0x4d2d38e6u, 0xf0255dc1u,
-   0x4cdd2086u, 0x8470eb26u, 0x6382e9c6u, 0x021ecc5eu,
-   0x09686b3fu, 0x3ebaefc9u, 0x3c971814u, 0x6b6a70a1u,
-   0x687f3584u, 0x52a0e286u, 0xb79c5305u, 0xaa500737u,
-   0x3e07841cu, 0x7fdeae5cu, 0x8e7d44ecu, 0x5716f2b8u,
-   0xb03ada37u, 0xf0500c0du, 0xf01c1f04u, 0x0200b3ffu,
-   0xae0cf51au, 0x3cb574b2u, 0x25837a58u, 0xdc0921bdu,
-   0xd19113f9u, 0x7ca92ff6u, 0x94324773u, 0x22f54701u,
-   0x3ae5e581u, 0x37c2dadcu, 0xc8b57634u, 0x9af3dda7u,
-   0xa9446146u, 0x0fd0030eu, 0xecc8c73eu, 0xa4751e41u,
-   0xe238cd99u, 0x3bea0e2fu, 0x3280bba1u, 0x183eb331u,
-   0x4e548b38u, 0x4f6db908u, 0x6f420d03u, 0xf60a04bfu,
-   0x2cb81290u, 0x24977c79u, 0x5679b072u, 0xbcaf89afu,
-   0xde9a771fu, 0xd9930810u, 0xb38bae12u, 0xdccf3f2eu,
-   0x5512721fu, 0x2e6b7124u, 0x501adde6u, 0x9f84cd87u,
-   0x7a584718u, 0x7408da17u, 0xbc9f9abcu, 0xe94b7d8cu,
-   0xec7aec3au, 0xdb851dfau, 0x63094366u, 0xc464c3d2u,
-   0xef1c1847u, 0x3215d908u, 0xdd433b37u, 0x24c2ba16u,
-   0x12a14d43u, 0x2a65c451u, 0x50940002u, 0x133ae4ddu,
-   0x71dff89eu, 0x10314e55u, 0x81ac77d6u, 0x5f11199bu,
-   0x043556f1u, 0xd7a3c76bu, 0x3c11183bu, 0x5924a509u,
-   0xf28fe6edu, 0x97f1fbfau, 0x9ebabf2cu, 0x1e153c6eu,
-   0x86e34570u, 0xeae96fb1u, 0x860e5e0au, 0x5a3e2ab3u,
-   0x771fe71cu, 0x4e3d06fau, 0x2965dcb9u, 0x99e71d0fu,
-   0x803e89d6u, 0x5266c825u, 0x2e4cc978u, 0x9c10b36au,
-   0xc6150ebau, 0x94e2ea78u, 0xa5fc3c53u, 0x1e0a2df4u,
-   0xf2f74ea7u, 0x361d2b3du, 0x1939260fu, 0x19c27960u,
-   0x5223a708u, 0xf71312b6u, 0xebadfe6eu, 0xeac31f66u,
-   0xe3bc4595u, 0xa67bc883u, 0xb17f37d1u, 0x018cff28u,
-   0xc332ddefu, 0xbe6c5aa5u, 0x65582185u, 0x68ab9802u,
-   0xeecea50fu, 0xdb2f953bu, 0x2aef7dadu, 0x5b6e2f84u,
-   0x1521b628u, 0x29076170u, 0xecdd4775u, 0x619f1510u,
-   0x13cca830u, 0xeb61bd96u, 0x0334fe1eu, 0xaa0363cfu,
-   0xb5735c90u, 0x4c70a239u, 0xd59e9e0bu, 0xcbaade14u,
-   0xeecc86bcu, 0x60622ca7u, 0x9cab5cabu, 0xb2f3846eu,
-   0x648b1eafu, 0x19bdf0cau, 0xa02369b9u, 0x655abb50u,
-   0x40685a32u, 0x3c2ab4b3u, 0x319ee9d5u, 0xc021b8f7u,
-   0x9b540b19u, 0x875fa099u, 0x95f7997eu, 0x623d7da8u,
-   0xf837889au, 0x97e32d77u, 0x11ed935fu, 0x16681281u,
-   0x0e358829u, 0xc7e61fd6u, 0x96dedfa1u, 0x7858ba99u,
-   0x57f584a5u, 0x1b227263u, 0x9b83c3ffu, 0x1ac24696u,
-   0xcdb30aebu, 0x532e3054u, 0x8fd948e4u, 0x6dbc3128u,
-   0x58ebf2efu, 0x34c6ffeau, 0xfe28ed61u, 0xee7c3c73u,
-   0x5d4a14d9u, 0xe864b7e3u, 0x42105d14u, 0x203e13e0u,
-   0x45eee2b6u, 0xa3aaabeau, 0xdb6c4f15u, 0xfacb4fd0u,
-   0xc742f442u, 0xef6abbb5u, 0x654f3b1du, 0x41cd2105u,
-   0xd81e799eu, 0x86854dc7u, 0xe44b476au, 0x3d816250u,
-   0xcf62a1f2u, 0x5b8d2646u, 0xfc8883a0u, 0xc1c7b6a3u,
-   0x7f1524c3u, 0x69cb7492u, 0x47848a0bu, 0x5692b285u,
-   0x095bbf00u, 0xad19489du, 0x1462b174u, 0x23820e00u,
-   0x58428d2au, 0x0c55f5eau, 0x1dadf43eu, 0x233f7061u,
-   0x3372f092u, 0x8d937e41u, 0xd65fecf1u, 0x6c223bdbu,
-   0x7cde3759u, 0xcbee7460u, 0x4085f2a7u, 0xce77326eu,
-   0xa6078084u, 0x19f8509eu, 0xe8efd855u, 0x61d99735u,
-   0xa969a7aau, 0xc50c06c2u, 0x5a04abfcu, 0x800bcadcu,
-   0x9e447a2eu, 0xc3453484u, 0xfdd56705u, 0x0e1e9ec9u,
-   0xdb73dbd3u, 0x105588cdu, 0x675fda79u, 0xe3674340u,
-   0xc5c43465u, 0x713e38d8u, 0x3d28f89eu, 0xf16dff20u,
-   0x153e21e7u, 0x8fb03d4au, 0xe6e39f2bu, 0xdb83adf7u},
-  {0xe93d5a68u, 0x948140f7u, 0xf64c261cu, 0x94692934u,
-   0x411520f7u, 0x7602d4f7u, 0xbcf46b2eu, 0xd4a20068u,
-   0xd4082471u, 0x3320f46au, 0x43b7d4b7u, 0x500061afu,
-   0x1e39f62eu, 0x97244546u, 0x14214f74u, 0xbf8b8840u,
-   0x4d95fc1du, 0x96b591afu, 0x70f4ddd3u, 0x66a02f45u,
-   0xbfbc09ecu, 0x03bd9785u, 0x7fac6dd0u, 0x31cb8504u,
-   0x96eb27b3u, 0x55fd3941u, 0xda2547e6u, 0xabca0a9au,
-   0x28507825u, 0x530429f4u, 0x0a2c86dau, 0xe9b66dfbu,
-   0x68dc1462u, 0xd7486900u, 0x680ec0a4u, 0x27a18deeu,
-   0x4f3ffea2u, 0xe887ad8cu, 0xb58ce006u, 0x7af4d6b6u,
-   0xaace1e7cu, 0xd3375fecu, 0xce78a399u, 0x406b2a42u,
-   0x20fe9e35u, 0xd9f385b9u, 0xee39d7abu, 0x3b124e8bu,
-   0x1dc9faf7u, 0x4b6d1856u, 0x26a36631u, 0xeae397b2u,
-   0x3a6efa74u, 0xdd5b4332u, 0x6841e7f7u, 0xca7820fbu,
-   0xfb0af54eu, 0xd8feb397u, 0x454056acu, 0xba489527u,
-   0x55533a3au, 0x20838d87u, 0xfe6ba9b7u, 0xd096954bu,
-   0x55a867bcu, 0xa1159a58u, 0xcca92963u, 0x99e1db33u,
-   0xa62a4a56u, 0x3f3125f9u, 0x5ef47e1cu, 0x9029317cu,
-   0xfdf8e802u, 0x04272f70u, 0x80bb155cu, 0x05282ce3u,
-   0x95c11548u, 0xe4c66d22u, 0x48c1133fu, 0xc70f86dcu,
-   0x07f9c9eeu, 0x41041f0fu, 0x404779a4u, 0x5d886e17u,
-   0x325f51ebu, 0xd59bc0d1u, 0xf2bcc18fu, 0x41113564u,
-   0x257b7834u, 0x602a9c60u, 0xdff8e8a3u, 0x1f636c1bu,
-   0x0e12b4c2u, 0x02e1329eu, 0xaf664fd1u, 0xcad18115u,
-   0x6b2395e0u, 0x333e92e1u, 0x3b240b62u, 0xeebeb922u,
-   0x85b2a20eu, 0xe6ba0d99u, 0xde720c8cu, 0x2da2f728u,
-   0xd0127845u, 0x95b794fdu, 0x647d0862u, 0xe7ccf5f0u,
-   0x5449a36fu, 0x877d48fau, 0xc39dfd27u, 0xf33e8d1eu,
-   0x0a476341u, 0x992eff74u, 0x3a6f6eabu, 0xf4f8fd37u,
-   0xa812dc60u, 0xa1ebddf8u, 0x991be14cu, 0xdb6e6b0du,
-   0xc67b5510u, 0x6d672c37u, 0x2765d43bu, 0xdcd0e804u,
-   0xf1290dc7u, 0xcc00ffa3u, 0xb5390f92u, 0x690fed0bu,
-   0x667b9ffbu, 0xcedb7d9cu, 0xa091cf0bu, 0xd9155ea3u,
-   0xbb132f88u, 0x515bad24u, 0x7b9479bfu, 0x763bd6ebu,
-   0x37392eb3u, 0xcc115979u, 0x8026e297u, 0xf42e312du,
-   0x6842ada7u, 0xc66a2b3bu, 0x12754cccu, 0x782ef11cu,
-   0x6a124237u, 0xb79251e7u, 0x06a1bbe6u, 0x4bfb6350u,
-   0x1a6b1018u, 0x11caedfau, 0x3d25bdd8u, 0xe2e1c3c9u,
-   0x44421659u, 0x0a121386u, 0xd90cec6eu, 0xd5abea2au,
-   0x64af674eu, 0xda86a85fu, 0xbebfe988u, 0x64e4c3feu,
-   0x9dbc8057u, 0xf0f7c086u, 0x60787bf8u, 0x6003604du,
-   0xd1fd8346u, 0xf6381fb0u, 0x7745ae04u, 0xd736fcccu,
-   0x83426b33u, 0xf01eab71u, 0xb0804187u, 0x3c005e5fu,
-   0x77a057beu, 0xbde8ae24u, 0x55464299u, 0xbf582e61u,
-   0x4e58f48fu, 0xf2ddfda2u, 0xf474ef38u, 0x8789bdc2u,
-   0x5366f9c3u, 0xc8b38e74u, 0xb475f255u, 0x46fcd9b9u,
-   0x7aeb2661u, 0x8b1ddf84u, 0x846a0e79u, 0x915f95e2u,
-   0x466e598eu, 0x20b45770u, 0x8cd55591u, 0xc902de4cu,
-   0xb90bace1u, 0xbb8205d0u, 0x11a86248u, 0x7574a99eu,
-   0xb77f19b6u, 0xe0a9dc09u, 0x662d09a1u, 0xc4324633u,
-   0xe85a1f02u, 0x09f0be8cu, 0x4a99a025u, 0x1d6efe10u,
-   0x1ab93d1du, 0x0ba5a4dfu, 0xa186f20fu, 0x2868f169u,
-   0xdcb7da83u, 0x573906feu, 0xa1e2ce9bu, 0x4fcd7f52u,
-   0x50115e01u, 0xa70683fau, 0xa002b5c4u, 0x0de6d027u,
-   0x9af88c27u, 0x773f8641u, 0xc3604c06u, 0x61a806b5u,
-   0xf0177a28u, 0xc0f586e0u, 0x006058aau, 0x30dc7d62u,
-   0x11e69ed7u, 0x2338ea63u, 0x53c2dd94u, 0xc2c21634u,
-   0xbbcbee56u, 0x90bcb6deu, 0xebfc7da1u, 0xce591d76u,
-   0x6f05e409u, 0x4b7c0188u, 0x39720a3du, 0x7c927c24u,
-   0x86e3725fu, 0x724d9db9u, 0x1ac15bb4u, 0xd39eb8fcu,
-   0xed545578u, 0x08fca5b5u, 0xd83d7cd3u, 0x4dad0fc4u,
-   0x1e50ef5eu, 0xb161e6f8u, 0xa28514d9u, 0x6c51133cu,
-   0x6fd5c7e7u, 0x56e14ec4u, 0x362abfceu, 0xddc6c837u,
-   0xd79a3234u, 0x92638212u, 0x670efa8eu, 0x406000e0u},
-  {0x3a39ce37u, 0xd3faf5cfu, 0xabc27737u, 0x5ac52d1bu,
-   0x5cb0679eu, 0x4fa33742u, 0xd3822740u, 0x99bc9bbeu,
-   0xd5118e9du, 0xbf0f7315u, 0xd62d1c7eu, 0xc700c47bu,
-   0xb78c1b6bu, 0x21a19045u, 0xb26eb1beu, 0x6a366eb4u,
-   0x5748ab2fu, 0xbc946e79u, 0xc6a376d2u, 0x6549c2c8u,
-   0x530ff8eeu, 0x468dde7du, 0xd5730a1du, 0x4cd04dc6u,
-   0x2939bbdbu, 0xa9ba4650u, 0xac9526e8u, 0xbe5ee304u,
-   0xa1fad5f0u, 0x6a2d519au, 0x63ef8ce2u, 0x9a86ee22u,
-   0xc089c2b8u, 0x43242ef6u, 0xa51e03aau, 0x9cf2d0a4u,
-   0x83c061bau, 0x9be96a4du, 0x8fe51550u, 0xba645bd6u,
-   0x2826a2f9u, 0xa73a3ae1u, 0x4ba99586u, 0xef5562e9u,
-   0xc72fefd3u, 0xf752f7dau, 0x3f046f69u, 0x77fa0a59u,
-   0x80e4a915u, 0x87b08601u, 0x9b09e6adu, 0x3b3ee593u,
-   0xe990fd5au, 0x9e34d797u, 0x2cf0b7d9u, 0x022b8b51u,
-   0x96d5ac3au, 0x017da67du, 0xd1cf3ed6u, 0x7c7d2d28u,
-   0x1f9f25cfu, 0xadf2b89bu, 0x5ad6b472u, 0x5a88f54cu,
-   0xe029ac71u, 0xe019a5e6u, 0x47b0acfdu, 0xed93fa9bu,
-   0xe8d3c48du, 0x283b57ccu, 0xf8d56629u, 0x79132e28u,
-   0x785f0191u, 0xed756055u, 0xf7960e44u, 0xe3d35e8cu,
-   0x15056dd4u, 0x88f46dbau, 0x03a16125u, 0x0564f0bdu,
-   0xc3eb9e15u, 0x3c9057a2u, 0x97271aecu, 0xa93a072au,
-   0x1b3f6d9bu, 0x1e6321f5u, 0xf59c66fbu, 0x26dcf319u,
-   0x7533d928u, 0xb155fdf5u, 0x03563482u, 0x8aba3cbbu,
-   0x28517711u, 0xc20ad9f8u, 0xabcc5167u, 0xccad925fu,
-   0x4de81751u, 0x3830dc8eu, 0x379d5862u, 0x9320f991u,
-   0xea7a90c2u, 0xfb3e7bceu, 0x5121ce64u, 0x774fbe32u,
-   0xa8b6e37eu, 0xc3293d46u, 0x48de5369u, 0x6413e680u,
-   0xa2ae0810u, 0xdd6db224u, 0x69852dfdu, 0x09072166u,
-   0xb39a460au, 0x6445c0ddu, 0x586cdecfu, 0x1c20c8aeu,
-   0x5bbef7ddu, 0x1b588d40u, 0xccd2017fu, 0x6bb4e3bbu,
-   0xdda26a7eu, 0x3a59ff45u, 0x3e350a44u, 0xbcb4cdd5u,
-   0x72eacea8u, 0xfa6484bbu, 0x8d6612aeu, 0xbf3c6f47u,
-   0xd29be463u, 0x542f5d9eu, 0xaec2771bu, 0xf64e6370u,
-   0x740e0d8du, 0xe75b1357u, 0xf8721671u, 0xaf537d5du,
-   0x4040cb08u, 0x4eb4e2ccu, 0x34d2466au, 0x0115af84u,
-   0xe1b00428u, 0x95983a1du, 0x06b89fb4u, 0xce6ea048u,
-   0x6f3f3b82u, 0x3520ab82u, 0x011a1d4bu, 0x277227f8u,
-   0x611560b1u, 0xe7933fdcu, 0xbb3a792bu, 0x344525bdu,
-   0xa08839e1u, 0x51ce794bu, 0x2f32c9b7u, 0xa01fbac9u,
-   0xe01cc87eu, 0xbcc7d1f6u, 0xcf0111c3u, 0xa1e8aac7u,
-   0x1a908749u, 0xd44fbd9au, 0xd0dadecbu, 0xd50ada38u,
-   0x0339c32au, 0xc6913667u, 0x8df9317cu, 0xe0b12b4fu,
-   0xf79e59b7u, 0x43f5bb3au, 0xf2d519ffu, 0x27d9459cu,
-   0xbf97222cu, 0x15e6fc2au, 0x0f91fc71u, 0x9b941525u,
-   0xfae59361u, 0xceb69cebu, 0xc2a86459u, 0x12baa8d1u,
-   0xb6c1075eu, 0xe3056a0cu, 0x10d25065u, 0xcb03a442u,
-   0xe0ec6e0eu, 0x1698db3bu, 0x4c98a0beu, 0x3278e964u,
-   0x9f1f9532u, 0xe0d392dfu, 0xd3a0342bu, 0x8971f21eu,
-   0x1b0a7441u, 0x4ba3348cu, 0xc5be7120u, 0xc37632d8u,
-   0xdf359f8du, 0x9b992f2eu, 0xe60b6f47u, 0x0fe3f11du,
-   0xe54cda54u, 0x1edad891u, 0xce6279cfu, 0xcd3e7e6fu,
-   0x1618b166u, 0xfd2c1d05u, 0x848fd2c5u, 0xf6fb2299u,
-   0xf523f357u, 0xa6327623u, 0x93a83531u, 0x56cccd02u,
-   0xacf08162u, 0x5a75ebb5u, 0x6e163697u, 0x88d273ccu,
-   0xde966292u, 0x81b949d0u, 0x4c50901bu, 0x71c65614u,
-   0xe6c6c7bdu, 0x327a140au, 0x45e1d006u, 0xc3f27b9au,
-   0xc9aa53fdu, 0x62a80f00u, 0xbb25bfe2u, 0x35bdd2f6u,
-   0x71126905u, 0xb2040222u, 0xb6cbcf7cu, 0xcd769c2bu,
-   0x53113ec0u, 0x1640e3d3u, 0x38abbd60u, 0x2547adf0u,
-   0xba38209cu, 0xf746ce76u, 0x77afa1c5u, 0x20756060u,
-   0x85cbfe4eu, 0x8ae88dd8u, 0x7aaaf9b0u, 0x4cf9aa7eu,
-   0x1948c25cu, 0x02fb8a8cu, 0x01c36ae4u, 0xd6ebe1f9u,
-   0x90d4f869u, 0xa65cdea0u, 0x3f09252du, 0xc208e69fu,
-   0xb74e6132u, 0xce77e25bu, 0x578fdfe3u, 0x3ac372e6u}
-};
-
-#define F1(i) \
-  xl ^= pax[i]; \
-  xr ^= ((sbx[0][xl >> 24] + \
-          sbx[1][(xl & 0xFF0000) >> 16]) ^ \
-         sbx[2][(xl & 0xFF00) >> 8]) + \
-        sbx[3][xl & 0xFF];
-
-#define F2(i) \
-  xr ^= pax[i]; \
-  xl ^= ((sbx[0][xr >> 24] + \
-          sbx[1][(xr & 0xFF0000) >> 16]) ^ \
-         sbx[2][(xr & 0xFF00) >> 8]) + \
-        sbx[3][xr & 0xFF];
-
-
-static void bf_e_block(uint32_t *p_xl, uint32_t *p_xr)
-{
-  uint32_t temp;
-  uint32_t xl = *p_xl;
-  uint32_t xr = *p_xr;
-
-  F1(0) F2(1) F1(2) F2(3) F1(4) F2(5) F1(6) F2(7)
-  F1(8) F2(9) F1(10) F2(11) F1(12) F2(13) F1(14) F2(15)
-  xl ^= pax[16];
-  xr ^= pax[17];
-  temp = xl;
-  xl = xr;
-  xr = temp;
-  *p_xl = xl;
-  *p_xr = xr;
-}
-
-#ifdef WORDS_BIGENDIAN
-# define htonl2(x) \
-  x = ((((x) & 0xffL) << 24) | (((x) & 0xff00L) <<  8) | \
-       (((x) & 0xff0000L) >>  8) | (((x) & 0xff000000L) >> 24))
-#else  // ifdef WORDS_BIGENDIAN
-# define htonl2(x)
-#endif  // ifdef WORDS_BIGENDIAN
-
-static void bf_e_cblock(char_u *block)
-{
-  block8 bk;
-
-  memcpy(bk.uc, block, 8);
-  htonl2(bk.ul[0]);
-  htonl2(bk.ul[1]);
-  bf_e_block(&bk.ul[0], &bk.ul[1]);
-  htonl2(bk.ul[0]);
-  htonl2(bk.ul[1]);
-  memcpy(block, bk.uc, 8);
-}
-
-// Initialize the crypt method using "password" as the encryption key and
-// "salt[salt_len]" as the salt.
-void bf_key_init(char_u *password, char_u *salt, int salt_len)
-{
-  // Process the key 1000 times.
-  // See http://en.wikipedia.org/wiki/Key_strengthening.
-  char_u *key = sha256_key(password, salt, salt_len);
-
-  int i;
-  for (i = 0; i < 1000; i++) {
-    key = sha256_key(key, salt, salt_len);
-  }
-
-  // Convert the key from 64 hex chars to 32 binary chars.
-  int keylen = (int)STRLEN(key) / 2;
-
-  if (keylen == 0) {
-    EMSG(_("E831: bf_key_init() called with empty password"));
-    return;
-  }
-
-  unsigned u;
-  for (i = 0; i < keylen; i++) {
-    sscanf((char *)&key[i * 2], "%2x", &u);
-    key[i] = u;
-  }
-
-  memmove(sbx, sbi, 4 * 4 * 256);
-
-  int keypos = 0;
-  for (i = 0; i < 18; i++) {
-    uint32_t val = 0;
-
-    int j;
-    for (j = 0; j < 4; j++) {
-      val = (val << 8) | key[keypos++ % keylen];
-    }
-    pax[i] = ipa[i] ^ val;
-  }
-
-  uint32_t data_l = 0;
-  uint32_t data_r = 0;
-  for (i = 0; i < 18; i += 2) {
-    bf_e_block(&data_l, &data_r);
-    pax[i + 0] = data_l;
-    pax[i + 1] = data_r;
-  }
-
-  for (i = 0; i < 4; i++) {
-    int j;
-    for (j = 0; j < 256; j += 2) {
-      bf_e_block(&data_l, &data_r);
-      sbx[i][j + 0] = data_l;
-      sbx[i][j + 1] = data_r;
-    }
-  }
-}
-
-/// BF Self test for corrupted tables or instructions
-static int bf_check_tables(uint32_t a_ipa[18], uint32_t a_sbi[4][256],
-                           uint32_t val)
-{
-  uint32_t c = 0;
-  int i;
-  for (i = 0; i < 18; i++) {
-    c ^= a_ipa[i];
-  }
-
-  for (i = 0; i < 4; i++) {
-    int j;
-    for (j = 0; j < 256; j++) {
-      c ^= a_sbi[i][j];
-    }
-  }
-  return c == val;
-}
-
-typedef struct {
-  char_u password[64];
-  char_u salt[9];
-  char_u plaintxt[9];
-  char_u cryptxt[9];
-  char_u badcryptxt[9]; // cryptxt when big/little endian is wrong.
-  uint32_t keysum;
-} struct_bf_test_data;
-
-// Assert bf(password, plaintxt) is cryptxt.
-// Assert csum(pax sbx(password)) is keysum.
-static struct_bf_test_data bf_test_data[] = {
-  {
-    "password",
-    "salt",
-    "plaintxt",
-    "\xad\x3d\xfa\x7f\xe8\xea\x40\xf6", // cryptxt
-    "\x72\x50\x3b\x38\x10\x60\x22\xa7", // badcryptxt
-    0x56701b5du                         // keysum
-  },
-};
-
-// Return FAIL when there is something wrong with blowfish encryption.
-static int bf_self_test(void)
-{
-  int err = 0;
-  if (!bf_check_tables(ipa, sbi, 0x6ffa520a)) {
-    err++;
-  }
-
-  int bn = ARRAY_LENGTH(bf_test_data);
-  int i;
-  for (i = 0; i < bn; i++) {
-    bf_key_init((char_u *)(bf_test_data[i].password), bf_test_data[i].salt,
-                (int)STRLEN(bf_test_data[i].salt));
-
-    if (!bf_check_tables(pax, sbx, bf_test_data[i].keysum)) {
-      err++;
-    }
-
-    // Don't modify bf_test_data[i].plaintxt, self test is idempotent.
-    block8 bk;
-    memcpy(bk.uc, bf_test_data[i].plaintxt, 8);
-    bf_e_cblock(bk.uc);
-
-    if (memcmp(bk.uc, bf_test_data[i].cryptxt, 8) != 0) {
-      if ((err == 0) && (memcmp(bk.uc, bf_test_data[i].badcryptxt, 8) == 0)) {
-        EMSG(_("E817: Blowfish big/little endian use wrong"));
-      }
-      err++;
-    }
-  }
-
-  return err > 0 ? FAIL : OK;
-}
-
-// Cipher feedback mode.
-static int randbyte_offset = 0;
-static int update_offset = 0;
-static char_u cfb_buffer[BF_CFB_LEN];  // 64 bytes
-
-// Initialize with seed "iv[iv_len]".
-void bf_cfb_init(char_u *iv, int iv_len)
-{
-  randbyte_offset = update_offset = 0;
-  memset(cfb_buffer, 0, BF_CFB_LEN);
-
-  if (iv_len > 0) {
-    int mi = iv_len > BF_CFB_LEN ? iv_len : BF_CFB_LEN;
-    int i;
-    for (i = 0; i < mi; i++) {
-      cfb_buffer[i % BF_CFB_LEN] ^= iv[i % iv_len];
-    }
-  }
-}
-
-#define BF_CFB_UPDATE(c)                    \
-  {                                         \
-    cfb_buffer[update_offset] ^= (char_u)c; \
-    if (++update_offset == BF_CFB_LEN) {    \
-      update_offset = 0;                    \
-    }                                       \
-  }
-
-#define BF_RANBYTE(t)                             \
-  {                                               \
-    if ((randbyte_offset & BF_BLOCK_MASK) == 0) { \
-      bf_e_cblock(&cfb_buffer[randbyte_offset]);  \
-    }                                             \
-    t = cfb_buffer[randbyte_offset];              \
-    if (++randbyte_offset == BF_CFB_LEN) {        \
-      randbyte_offset = 0;                        \
-    }                                             \
-  }
-
-// Encrypt "from[len]" into "to[len]".
-// "from" and "to" can be equal to encrypt in place.
-void bf_crypt_encode(char_u *from, size_t len, char_u *to)
-{
-  size_t i;
-  for (i = 0; i < len; i++) {
-    int ztemp = from[i];
-    int t;
-    BF_RANBYTE(t);
-    BF_CFB_UPDATE(ztemp);
-    to[i] = t ^ ztemp;
-  }
-}
-
-/*
- * Decrypt "ptr[len]" in place.
- */
-void bf_crypt_decode(char_u *ptr, long len)
-{
-  char_u *p;
-  for (p = ptr; p < ptr + len; p++) {
-    int t;
-    BF_RANBYTE(t);
-    *p ^= t;
-    BF_CFB_UPDATE(*p);
-  }
-}
-
-/*
- * Initialize the encryption keys and the random header according to
- * the given password.
- * in: "passwd" password string with which to modify keys
- */
-void bf_crypt_init_keys(char_u *passwd)
-{
-  char_u *p;
-  for (p = passwd; *p != NUL; p++) {
-    BF_CFB_UPDATE(*p);
-  }
-}
-
-static int save_randbyte_offset;
-static int save_update_offset;
-static char_u save_cfb_buffer[BF_CFB_LEN];
-static uint32_t save_pax[18];
-static uint32_t save_sbx[4][256];
-
-/*
- * Save the current crypt state.  Can only be used once before
- * bf_crypt_restore().
- */
-void bf_crypt_save(void)
-{
-  save_randbyte_offset = randbyte_offset;
-  save_update_offset = update_offset;
-  memmove(save_cfb_buffer, cfb_buffer, BF_CFB_LEN);
-  memmove(save_pax, pax, 4 * 18);
-  memmove(save_sbx, sbx, 4 * 4 * 256);
-}
-
-/*
- * Restore the current crypt state.  Can only be used after
- * bf_crypt_save().
- */
-void bf_crypt_restore(void)
-{
-  randbyte_offset = save_randbyte_offset;
-  update_offset = save_update_offset;
-  memmove(cfb_buffer, save_cfb_buffer, BF_CFB_LEN);
-  memmove(pax, save_pax, 4 * 18);
-  memmove(sbx, save_sbx, 4 * 4 * 256);
-}
-
-/*
- * Run a test to check if the encryption works as expected.
- * Give an error and return FAIL when not.
- */
-int blowfish_self_test(void)
-{
-  if (sha256_self_test() == FAIL) {
-    EMSG(_("E818: sha256 test failed"));
-    return FAIL;
-  }
-  if (bf_self_test() == FAIL) {
-    EMSG(_("E819: Blowfish test failed"));
-    return FAIL;
-  }
-  return OK;
-}