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This commit is contained in:
parent
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commit
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12 changed files with 3 additions and 3 deletions
19
Lab04/content/part1/analyse/go.mod
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19
Lab04/content/part1/analyse/go.mod
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module analyse
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go 1.18
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require (
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github.com/dariubs/percent v1.0.0
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gonum.org/v1/plot v0.11.0
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)
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require (
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git.sr.ht/~sbinet/gg v0.3.1 // indirect
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github.com/ajstarks/svgo v0.0.0-20211024235047-1546f124cd8b // indirect
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github.com/go-fonts/liberation v0.2.0 // indirect
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github.com/go-latex/latex v0.0.0-20210823091927-c0d11ff05a81 // indirect
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github.com/go-pdf/fpdf v0.6.0 // indirect
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github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 // indirect
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golang.org/x/image v0.0.0-20220302094943-723b81ca9867 // indirect
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golang.org/x/text v0.3.7 // indirect
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)
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78
Lab04/content/part1/analyse/go.sum
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78
Lab04/content/part1/analyse/go.sum
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@ -0,0 +1,78 @@
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git.sr.ht/~sbinet/gg v0.3.1 h1:LNhjNn8DerC8f9DHLz6lS0YYul/b602DUxDgGkd/Aik=
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git.sr.ht/~sbinet/gg v0.3.1/go.mod h1:KGYtlADtqsqANL9ueOFkWymvzUvLMQllU5Ixo+8v3pc=
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github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
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github.com/ajstarks/deck v0.0.0-20200831202436-30c9fc6549a9/go.mod h1:JynElWSGnm/4RlzPXRlREEwqTHAN3T56Bv2ITsFT3gY=
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github.com/ajstarks/deck/generate v0.0.0-20210309230005-c3f852c02e19/go.mod h1:T13YZdzov6OU0A1+RfKZiZN9ca6VeKdBdyDV+BY97Tk=
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github.com/ajstarks/svgo v0.0.0-20211024235047-1546f124cd8b h1:slYM766cy2nI3BwyRiyQj/Ud48djTMtMebDqepE95rw=
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github.com/ajstarks/svgo v0.0.0-20211024235047-1546f124cd8b/go.mod h1:1KcenG0jGWcpt8ov532z81sp/kMMUG485J2InIOyADM=
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github.com/boombuler/barcode v1.0.0/go.mod h1:paBWMcWSl3LHKBqUq+rly7CNSldXjb2rDl3JlRe0mD8=
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github.com/boombuler/barcode v1.0.1/go.mod h1:paBWMcWSl3LHKBqUq+rly7CNSldXjb2rDl3JlRe0mD8=
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github.com/dariubs/percent v1.0.0 h1:fY8q40FRYaCiFZ0gTOa73Cmp21hS32w+tSSmqbGnUzc=
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github.com/dariubs/percent v1.0.0/go.mod h1:NDZpkezJ8QqyIW/510MywB5T2KdC8v/0oTlEoPcMsRM=
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github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/fogleman/gg v1.3.0/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k=
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github.com/go-fonts/dejavu v0.1.0 h1:JSajPXURYqpr+Cu8U9bt8K+XcACIHWqWrvWCKyeFmVQ=
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github.com/go-fonts/dejavu v0.1.0/go.mod h1:4Wt4I4OU2Nq9asgDCteaAaWZOV24E+0/Pwo0gppep4g=
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github.com/go-fonts/latin-modern v0.2.0 h1:5/Tv1Ek/QCr20C6ZOz15vw3g7GELYL98KWr8Hgo+3vk=
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github.com/go-fonts/latin-modern v0.2.0/go.mod h1:rQVLdDMK+mK1xscDwsqM5J8U2jrRa3T0ecnM9pNujks=
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github.com/go-fonts/liberation v0.2.0 h1:jAkAWJP4S+OsrPLZM4/eC9iW7CtHy+HBXrEwZXWo5VM=
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github.com/go-fonts/liberation v0.2.0/go.mod h1:K6qoJYypsmfVjWg8KOVDQhLc8UDgIK2HYqyqAO9z7GY=
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github.com/go-fonts/stix v0.1.0/go.mod h1:w/c1f0ldAUlJmLBvlbkvVXLAD+tAMqobIIQpmnUIzUY=
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github.com/go-latex/latex v0.0.0-20210823091927-c0d11ff05a81 h1:6zl3BbBhdnMkpSj2YY30qV3gDcVBGtFgVsV3+/i+mKQ=
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github.com/go-latex/latex v0.0.0-20210823091927-c0d11ff05a81/go.mod h1:SX0U8uGpxhq9o2S/CELCSUxEWWAuoCUcVCQWv7G2OCk=
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github.com/go-pdf/fpdf v0.5.0/go.mod h1:HzcnA+A23uwogo0tp9yU+l3V+KXhiESpt1PMayhOh5M=
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github.com/go-pdf/fpdf v0.6.0 h1:MlgtGIfsdMEEQJr2le6b/HNr1ZlQwxyWr77r2aj2U/8=
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github.com/go-pdf/fpdf v0.6.0/go.mod h1:HzcnA+A23uwogo0tp9yU+l3V+KXhiESpt1PMayhOh5M=
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github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 h1:DACJavvAHhabrF08vX0COfcOBJRhZ8lUbR+ZWIs0Y5g=
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github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
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github.com/jung-kurt/gofpdf v1.0.0/go.mod h1:7Id9E/uU8ce6rXgefFLlgrJj/GYY22cpxn+r32jIOes=
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github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
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github.com/phpdave11/gofpdf v1.4.2/go.mod h1:zpO6xFn9yxo3YLyMvW8HcKWVdbNqgIfOOp2dXMnm1mY=
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github.com/phpdave11/gofpdi v1.0.12/go.mod h1:vBmVV0Do6hSBHC8uKUQ71JGW+ZGQq74llk/7bXwjDoI=
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github.com/phpdave11/gofpdi v1.0.13/go.mod h1:vBmVV0Do6hSBHC8uKUQ71JGW+ZGQq74llk/7bXwjDoI=
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github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
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github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
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github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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github.com/ruudk/golang-pdf417 v0.0.0-20181029194003-1af4ab5afa58/go.mod h1:6lfFZQK844Gfx8o5WFuvpxWRwnSoipWe/p622j1v06w=
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github.com/ruudk/golang-pdf417 v0.0.0-20201230142125-a7e3863a1245/go.mod h1:pQAZKsJ8yyVxGRWYNEm9oFB8ieLgKFnamEyDmSA0BRk=
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github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
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github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
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golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
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golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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golang.org/x/exp v0.0.0-20191002040644-a1355ae1e2c3 h1:n9HxLrNxWWtEb1cA950nuEEj3QnKbtsCJ6KjcgisNUs=
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golang.org/x/image v0.0.0-20190910094157-69e4b8554b2a/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
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golang.org/x/image v0.0.0-20200119044424-58c23975cae1/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
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golang.org/x/image v0.0.0-20200430140353-33d19683fad8/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
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golang.org/x/image v0.0.0-20201208152932-35266b937fa6/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
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golang.org/x/image v0.0.0-20210607152325-775e3b0c77b9/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
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golang.org/x/image v0.0.0-20210628002857-a66eb6448b8d/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
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golang.org/x/image v0.0.0-20211028202545-6944b10bf410/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
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golang.org/x/image v0.0.0-20220302094943-723b81ca9867 h1:TcHcE0vrmgzNH1v3ppjcMGbhG5+9fMuvOmUYwNEF4q4=
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golang.org/x/image v0.0.0-20220302094943-723b81ca9867/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
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golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
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golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
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golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
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golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
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golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
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golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
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golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
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golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
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golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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gonum.org/v1/gonum v0.11.0 h1:f1IJhK4Km5tBJmaiJXtk/PkL4cdVX6J+tGiM187uT5E=
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gonum.org/v1/plot v0.11.0 h1:z2ZkgNqW34d0oYUzd80RRlc0L9kWtenqK4kflZG1lGc=
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gonum.org/v1/plot v0.11.0/go.mod h1:fH9YnKnDKax0u5EzHVXvhN5HJwtMFWIOLNuhgUahbCQ=
|
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honnef.co/go/tools v0.1.3/go.mod h1:NgwopIslSNH47DimFoV78dnkksY2EFtX0ajyb3K/las=
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rsc.io/pdf v0.1.1 h1:k1MczvYDUvJBe93bYd7wrZLLUEcLZAuF824/I4e5Xr4=
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117
Lab04/content/part1/analyse/main.go
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117
Lab04/content/part1/analyse/main.go
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package main
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import (
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"fmt"
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"github.com/dariubs/percent"
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"gonum.org/v1/plot"
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"gonum.org/v1/plot/plotter"
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"gonum.org/v1/plot/plotutil"
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"gonum.org/v1/plot/vg"
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"io/ioutil"
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"log"
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"sort"
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"strings"
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)
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type letter struct {
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upperCase string
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lowerCase string
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count int
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frequency float64
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}
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type letterList []letter
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func (l letterList) Len() int {
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return len(l)
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}
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func (l letterList) Less(i, j int) bool {
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return l[i].frequency > l[j].frequency
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}
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func (l letterList) Swap(i, j int) {
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l[i], l[j] = l[j], l[i]
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}
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const LettersInTheAlphabet = 26
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const startUpperCase = 65
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var letters = make([]letter, LettersInTheAlphabet)
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func initLetterStruct() {
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for i := 0; i < LettersInTheAlphabet; i++ {
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letters[i].upperCase = string(rune(startUpperCase + i))
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letters[i].lowerCase = string(rune(startUpperCase + i + 32))
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}
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}
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func readFile(relativePath string) string {
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content, err := ioutil.ReadFile(relativePath)
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if err != nil {
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log.Fatalln(err)
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}
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return string(content)
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}
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func countLetters(inputText string) int {
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totalCount := 0
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for i := 0; i < LettersInTheAlphabet; i++ {
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letters[i].count +=
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strings.Count(inputText, letters[i].lowerCase) +
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strings.Count(inputText, letters[i].upperCase)
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totalCount += letters[i].count
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}
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return totalCount
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}
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func calculateFrequency(totalCount int) {
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for i := 0; i < LettersInTheAlphabet; i++ {
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letters[i].frequency = percent.PercentOf(letters[i].count, totalCount)
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}
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}
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func printResult() {
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for i := 0; i < LettersInTheAlphabet; i++ {
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l := letters[i]
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fmt.Printf(
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"The letter %s (%s) occurs %d times in the text and the frequencyArray in percent is %0.2f\n",
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l.upperCase, l.lowerCase, l.count, l.frequency,
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)
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}
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}
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func plotResult() {
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var count plotter.Values
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for i := 0; i < LettersInTheAlphabet; i++ {
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count = append(count, float64(letters[i].count))
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}
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p := plot.New()
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p.Title.Text = "Letter count"
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p.X.Label.Text = "letter"
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p.Y.Label.Text = "count"
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countBars, err := plotter.NewBarChart(count, vg.Points(LettersInTheAlphabet/2))
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countBars.Color = plotutil.Color(2)
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if err != nil {
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log.Fatalln(err)
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}
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p.Add(countBars)
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var xAxisNaming []string
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for index := range letters {
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xAxisNaming = append(xAxisNaming, letters[index].upperCase)
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}
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p.NominalX(xAxisNaming...)
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if err := p.Save(25*vg.Centimeter, 15*vg.Centimeter, "barChart.png"); err != nil {
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log.Fatalln(err)
|
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}
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}
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|
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func main() {
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initLetterStruct()
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//totalCount := countLetters(readFile("plaintext.txt"))
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totalCount := countLetters(readFile("../part01-encrypt/output.txt"))
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calculateFrequency(totalCount)
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plotResult()
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sort.Sort(letterList(letters))
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printResult()
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}
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17
Lab04/content/part1/analyse/makefile
Normal file
17
Lab04/content/part1/analyse/makefile
Normal file
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@ -0,0 +1,17 @@
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# Go parameters
|
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GoCMD=go
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GoBUILD=$(GoCMD) build
|
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GoCLEAN=$(GoCMD) clean
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GoTEST=$(GoCMD) test
|
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GoMOD=$(GoCMD) mod
|
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BINARY_NAME=tool
|
||||
|
||||
# To install GoLang please follow the installation instructions on https://go.dev/
|
||||
all: build
|
||||
build:
|
||||
$(GoBUILD) -o $(BINARY_NAME) -v
|
||||
clean:
|
||||
$(GOCLEAN)
|
||||
rm -f $(BINARY_NAME)
|
||||
deps:
|
||||
$(GoMOD) tidy
|
||||
2
Lab04/content/part1/analyse/plaintext.txt
Normal file
2
Lab04/content/part1/analyse/plaintext.txt
Normal file
|
|
@ -0,0 +1,2 @@
|
|||
In cryptography, encryption is the process of encoding information. This process converts the original representation of the information, known as plaintext, into an alternative form known as ciphertext. Only authorized parties can decipher a ciphertext back to plaintext and access the original information. Encryption does not itself prevent interference but denies the intelligible content to a would-be interceptor. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. It is possible to decrypt the message without possessing the key, but, for a well-designed encryption scheme, considerable computational resources and skills are required. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients but not to unauthorized users. Historically, various forms of encryption have been used to aid in cryptography. Early encryption techniques were often utilized in military messaging. Since then, new
|
||||
techniques have emerged and become commonplace in all areas of modern computing. Modern encryption schemes utilize the concepts of public-key and symmetric-key. Modern encryption techniques ensure security because modern computers are inefficient at cracking the encryption.
|
||||
3
Lab04/content/part1/encrypt/go.mod
Normal file
3
Lab04/content/part1/encrypt/go.mod
Normal file
|
|
@ -0,0 +1,3 @@
|
|||
module encrypt
|
||||
|
||||
go 1.18
|
||||
0
Lab04/content/part1/encrypt/go.sum
Normal file
0
Lab04/content/part1/encrypt/go.sum
Normal file
40
Lab04/content/part1/encrypt/input.txt
Normal file
40
Lab04/content/part1/encrypt/input.txt
Normal file
|
|
@ -0,0 +1,40 @@
|
|||
New Zealand's capital, Wellington, has been ranked one of the least affordable
|
||||
cities in the world for buying a property. The picture is also grim for renters,
|
||||
with a 12% rise in prices in the past year. That, along with increases in petrol
|
||||
and food prices, has led many to consider moving to nearby Australia -
|
||||
where they have the right to live and work.
|
||||
Chris, a builder, his partner Harmony and their four daughters recently left
|
||||
Wellington to start a new life in the Australian city of Brisbane.
|
||||
Despite owning their home and earning reasonable salaries, they were still struggling.
|
||||
"We have four kids, so it was expensive. We'd notice Australians saying you know the
|
||||
cost of living is going up - but that was the cost five years ago in New Zealand,"
|
||||
says Chris. Leaving New Zealand and the rest of her family was a
|
||||
difficult decision for Harmony. But she says the move was necessary for the children.
|
||||
"You can't make a living in New Zealand. There is no living. You just go backwards.
|
||||
You don't get a choice if you want to live, you have to move, or
|
||||
New Zealand has to change. I want a future for my children and there
|
||||
is none in New Zealand," she says. The New Zealand government has tried
|
||||
to increase some short-term measures like fuel subsidies and halving the cost
|
||||
of public transport - but for many, it's not enough.
|
||||
In Brescia, Italy, steel runs through the veins of the community.
|
||||
In the past 15 years the industry has endured the financial crash and
|
||||
the Covid-19 pandemic. Now, with the war in Ukraine and Covid lockdowns in China,
|
||||
trade is being disrupted further. Mirella and Lucas met at a cast iron
|
||||
foundry in Brescia. Their two steady wages are up against rising food, petrol
|
||||
and energy costs. "With regard to electricity, we have recently suffered
|
||||
like everyone else. Our bill has doubled - even though we are never at home",
|
||||
says Mirella. "We are tightening our belts. Instead of saving a lot,
|
||||
you'll save less," says Lucas. Orders at this cast iron foundry continue.
|
||||
But a crucial source of raw materials from the south-eastern Ukrainian city of
|
||||
Mariupol are in now short supply, after Russian troops occupied the region.
|
||||
Mark Impraim owns a catering business in Ghana - one of the most expensive
|
||||
countries to live in, in Africa. He shops for ingredients for one of his most
|
||||
popular dishes -jollof rice - at a local market. But prices have doubled
|
||||
in recent months. Mark looks at a bucket of tomatoes, dismayed at the price tag.
|
||||
"[This box of tomatoes] used to be 20 cedis. Now it's going for 40," he says.
|
||||
"I should double the price of the food I serve, but that would scare away customers.
|
||||
I try to find a way around it by decreasing the quantity."
|
||||
Among other rising costs eating into Mark's weekly budget is a supply
|
||||
of drinking water. Sachets of water have increased in price twice in four months,
|
||||
due to the devaluation of the cedi.
|
||||
Water suppliers say passing the costs on to customers is unavoidable.
|
||||
95
Lab04/content/part1/encrypt/main.go
Normal file
95
Lab04/content/part1/encrypt/main.go
Normal file
|
|
@ -0,0 +1,95 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
"flag"
|
||||
"io/ioutil"
|
||||
"log"
|
||||
"os"
|
||||
"regexp"
|
||||
"strings"
|
||||
"unicode"
|
||||
)
|
||||
|
||||
const lettersInTheAlphabet = 26
|
||||
const startUpperCase = 65
|
||||
const endUpperCase = startUpperCase + lettersInTheAlphabet
|
||||
const startLowerCase = 97
|
||||
const endLowerCase = startLowerCase + lettersInTheAlphabet
|
||||
|
||||
type keyLetter struct {
|
||||
upperCase string
|
||||
position int32
|
||||
}
|
||||
|
||||
func parseArguments() (string, string) {
|
||||
var inputKey string
|
||||
var inputFile string
|
||||
flag.StringVar(&inputKey, "k", "", "Specify key word.")
|
||||
flag.StringVar(&inputFile, "f", "", "Specify file to encrypt.")
|
||||
flag.Parse()
|
||||
return inputKey, inputFile
|
||||
}
|
||||
|
||||
func readFile(relativePath string) string {
|
||||
content, err := ioutil.ReadFile(relativePath)
|
||||
if err != nil {
|
||||
log.Fatalln(err)
|
||||
}
|
||||
return string(content)
|
||||
}
|
||||
|
||||
func writeFile(relativePath string, message string) {
|
||||
file, err := os.Create(relativePath)
|
||||
if err != nil {
|
||||
log.Fatalln(err)
|
||||
}
|
||||
defer file.Close()
|
||||
file.WriteString(message)
|
||||
}
|
||||
|
||||
func validateKeyWord(inputKey string) string {
|
||||
reg, err := regexp.Compile("[^a-zA-Z]+")
|
||||
if err != nil {
|
||||
log.Fatalln(err)
|
||||
}
|
||||
processedString := reg.ReplaceAllString(inputKey, "")
|
||||
return strings.ToUpper(processedString)
|
||||
}
|
||||
|
||||
func initKeyWord(key string) []keyLetter {
|
||||
var keyWord []keyLetter
|
||||
for _, letter := range key {
|
||||
keyWord = append(keyWord, keyLetter{
|
||||
upperCase: string(letter),
|
||||
position: letter - 'A',
|
||||
})
|
||||
}
|
||||
return keyWord
|
||||
}
|
||||
|
||||
func encryptMessage(keyWord []keyLetter, message string) string {
|
||||
encrypted := ""
|
||||
index := 0
|
||||
for _, letter := range message {
|
||||
if !unicode.IsLetter(letter) {
|
||||
encrypted += string(letter)
|
||||
} else {
|
||||
keyWordIndex := index % len(keyWord)
|
||||
newLetter := letter + keyWord[keyWordIndex].position
|
||||
if (unicode.IsLower(letter) && newLetter >= endLowerCase) ||
|
||||
(unicode.IsUpper(letter) && newLetter >= endUpperCase) {
|
||||
newLetter -= lettersInTheAlphabet
|
||||
}
|
||||
encrypted += string(newLetter)
|
||||
index += 1
|
||||
}
|
||||
}
|
||||
return encrypted
|
||||
}
|
||||
|
||||
func main() {
|
||||
inputKey, inputFile := parseArguments()
|
||||
message := readFile(inputFile)
|
||||
keyWord := initKeyWord(validateKeyWord(inputKey))
|
||||
writeFile("output.txt", encryptMessage(keyWord, message))
|
||||
}
|
||||
17
Lab04/content/part1/encrypt/makefile
Normal file
17
Lab04/content/part1/encrypt/makefile
Normal file
|
|
@ -0,0 +1,17 @@
|
|||
# Go parameters
|
||||
GoCMD=go
|
||||
GoBUILD=$(GoCMD) build
|
||||
GoCLEAN=$(GoCMD) clean
|
||||
GoTEST=$(GoCMD) test
|
||||
GoMOD=$(GoCMD) mod
|
||||
BINARY_NAME=tool
|
||||
|
||||
# To install GoLang please follow the installation instructions on https://go.dev/
|
||||
all: build
|
||||
build:
|
||||
$(GoBUILD) -o $(BINARY_NAME) -v
|
||||
clean:
|
||||
$(GOCLEAN)
|
||||
rm -f $(BINARY_NAME)
|
||||
deps:
|
||||
$(GoMOD) tidy
|
||||
40
Lab04/content/part1/encrypt/output.txt
Normal file
40
Lab04/content/part1/encrypt/output.txt
Normal file
|
|
@ -0,0 +1,40 @@
|
|||
Spk Qmayhbv'k hldzbay, Dsddnyukwn, uhg twjy frvkrk cfw tq hym lrhgl skqcilaoss
|
||||
uaytsj qn gos ogwwr wwr obmafl l diwpryhq. Lmp dzkthys ak fwgf orvt tgj wpbkmrf,
|
||||
dwlz f 12% cwjm ia wfaujd we bhr wokl dpoi. Bhna, odgsr kzbh vuqjwfdsj qn clhjgq
|
||||
lbu nobk djahpg, yis ylr essj hf koazwvww xcmqnt ac fwfcpp Iufafsdnl -
|
||||
kymrr avwq mljv bhr ywyzy ec cqvr hbv otcy.
|
||||
Tprvz, o tmnwrvz, hvz dsjyysi Paetcfq fyr kpevy tgmw oolohglfk jjnsebll ssxl
|
||||
Bpzcqntacf lt dhrzt n uso dnqs zv tul Omkycocqaa jwlq tq Piqsohbw.
|
||||
Vjddzbe bdbafl evvqr uvaw sso srznvuu jwfdceibyl gsdfcwva, tulm owwp gkqly zhjmlrzzvg.
|
||||
"Jl vsnj qclz kvkg, kg ne kra ekwsfkngs. Nm'd avhauj Lijbrnswsfx dopqnt fcm cszk kpe
|
||||
pvgl gk wwmqnt pg ygnyu lx - bha hzsy hoj bhr jckl ktjv genyg syt tb Emw Mlodsso,"
|
||||
grgs Pofak. Qpomqnt Uso Rjlzrvd nur lzj csjb os osj xfxwcg wnz o
|
||||
vakqwtclg ksuaxtce noe Oojetym. Sct fos ksdd hym mbcs osx ystmsfhfq xtc hym cupzvjjy.
|
||||
"Mfc cnu'h espp o cqvvuu af Spk Qmayhbv. Lmpfv qs av zannyu. Pwu wbgl yt motswnyrk.
|
||||
Qtf rfv't tlh s umzwtm is fcm ofyh kw lvcs, qgz somm tb tcnw, tc
|
||||
Bve Zrhzsfi soj bo poofyj. T krvt n milmwp tfz ml jvadicse inq avwjj
|
||||
tg ewnr pb Fwb Ksrtaak," gzw xlmj. Bhr Uso Rjlzrvd tvjwjsxseb hnz hjajo
|
||||
hf qnpysskj dcdm suvfl-ljca dmafbfwk qtyv nurs gmtxtrzms nur zsqgweo tul qgky
|
||||
zt gcbypq ljfyggwrg - iil xtc arvy, va'g fgy pbfcgu.
|
||||
Pb Tjjdqzi, Ighzq, kypsc zuaz hzjtfuy bhr csafx zt kpe pvaemsthp.
|
||||
Qn gos hsxe 15 mvirf avw asoijbrl ook wsoiimd gos xaslbtqay jfskm lbu
|
||||
bhr Jcnai-19 aoelezpq. Fgb, hwkp tul ksj ny Ibzavus sfi Ncmqd yvqcvthbj qn Powfs,
|
||||
ycoum if isafl owjzucasv xzchymr. Zpfwdql oel Lhjok eje ok i cnzh ajty
|
||||
tfcnqym af Gcsjkin. Avwaw ekf atrhrq ofrsj irr bd syftbjb rvzwfy kzcu, xegycd
|
||||
sso semrtf qgkyd. "Kzbh elusji ec vtepafaunem, nm hncs jwhpbkty fbtxwwpr
|
||||
cqkr ljwjdzbv mlfl. Cmj gtzc paf kcmtqpr - vdea avgmls kv irr usnww lh ywmr",
|
||||
zoqk Rtfvtln. "Ds sjj ewxptruwfy tff smlgz. Wfkypou wf fhjafl l zfb,
|
||||
ybb'zd kfgs cmsf," zoqk Qfqra. Oeksjk fe hyqs phgl awzb wwuakfq utyhzvur.
|
||||
Iil s hcitqay zcmjhp cw zaj tolwwtoca feva lzj dclbh-rhglwwy Ibzavuwsf hthp wf
|
||||
Zhfamuzz rze vu bgo xscib shwddq, fqhvz Rhzgass effwpf vqumutsu bhr ysyaty.
|
||||
Arzk Vtdjsnx cnvs n jolwwtbx jufpbwkx tb Xpaah - cfw tq hym mbzh wpupbjqvr
|
||||
jcmfycwva tb swnw ny, we Ifepqs. Zj dvfxs svf aflcsuqeaag xgw zbv wf upg egxe
|
||||
dfxuyhf vaxssj -royscx jnns - rb a yvqsd rlfbmt. Obh hjnnsj pail rgmgwsu
|
||||
qn elqwfy xcebhf. Tojc qzcba ag h pmupph fn tbtolgjd, rzamnfsv sy evv xrvjs lsl.
|
||||
"[Evza bbe cx ltxokwef] bgwv yz pv 20 keqpg. Fgb th'j oovuu xgw 40," ss jiyf.
|
||||
"P gzgzwr uwuoss lzj afzke bm hzw kzcu Q sryjw, tze hyit jvidv xnoim ajhm umxecdmrf.
|
||||
P hjq yz tzvd n doq swziel ig im vwhcsraian hzw vfoebigf."
|
||||
Oegsr ckpee ywkasr qfatf lolasr webo Zhfc'k bpsbty obrywy tg r aucwzq
|
||||
gk ofzvkvuu osypf. Jiculhk gk hokmr uhjw asnfvisrk wf hwtqv bwvjs af kzii uoaavk,
|
||||
vzp hf bhr ksnsqfokqoa vt lzj nsuq.
|
||||
Wnasj kzadcqeez gsq ulgjqnt avw utdhj wn gv qmkyzavzs vz ifsazwuibyl.
|
||||
Reference in a new issue