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comparison go/crypto.go @ 0:d3b8cd5aeb70

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make repo.
author pyon@macmini
date Sun, 30 Sep 2018 17:27:04 +0900
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children db4813125eb8
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-1:000000000000 0:d3b8cd5aeb70
1 /*
2 crypto.go : crypto-program.
3 Version : 0.0
4 Last Change: 2018-09-30 Sun 16:47:45.
5
6 install to: rsearcher_root/
7 server_root/
8 */
9 package main
10
11 import (
12 "crypto/sha256"
13 "fmt"
14 "flag"
15 "os"
16 )
17
18 func main() {
19 salt := flag.String( "s", "#!@-", "salt." )
20 enca := flag.String( "a", "", "encrypt plaintext." )
21 encb := flag.String( "b", "", "encrypt csv-file." )
22 coll := flag.String( "c", "", "collate user/password." )
23
24 decr := flag.String( "d", "", "deecrypt hhs." )
25 encr := flag.String( "e", "", "encrypt hhs." )
26 chdb := flag.String( "f", "", "collate hhs." )
27 chhs := flag.String( "g", "", "collate hhs." )
28
29 flag.Parse()
30
31 if *enca != "" {
32 buf := *salt + enc_sha256( *enca ) + *salt
33 fmt.Println( enc_sha256( buf ) )
34 os.Exit( 0 ) // done.
35 }
36
37 if *encb != "" {
38 r := csv.NewReader(strings.NewReader(in))
39 for {
40 record, err := r.Read()
41 if err == io.EOF {
42 break
43 }
44 if err != nil {
45 log.Fatal( err )
46 }
47 buf := *salt + enc_sha256( record[1] ) + *salt
48 fmt.Println( record[0], ",", enc_sha256( buf ) )
49 }
50 }
51
52 if *coll != "" {
53 }
54
55 if *decr != "" {
56 }
57
58 if *encr != "" {
59 }
60
61 if *chdb != "" && *chhs != "" {
62 }
63
64 fmt.Fprintf( os.Stderr, "bad argument\n" )
65 os.Exit( 1 )
66 }
67
68 func enc_sha256( text string ) string {
69 h := sha256.New()
70 h.Write( []byte( text ) )
71 return fmt.Sprintf( "%x", h.Sum( nil ) )
72 }
73
74 func encrypt( text string ) []byte {
75 return nil
76 }
77