test/UseCaseNo1.Tests.ps1
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Import-Module -Name $PSScriptRoot\..\KidRSA.psm1 -Verbose -Force <# AlicesKeys VERBOSE: The value for 'a' is: 672 VERBOSE: The value for 'b' is: 263 VERBOSE: The value for 'a_' is: 342 VERBOSE: The value for 'b_' is: 543 VERBOSE: The value of Private key 'e' (encrypt) is: 60444042 VERBOSE: The value of Public key 'd' (decrypt) is: 95967368 VERBOSE: The value of 'n' is: 32821204753 #> $script:AlicesKeys = $(Get-RSAKey -a 672 -b 263 -a_ 342 -b_ 543) $script:PlainText = "HELLO" $script:CipherText = 32768720 $script:EncryptedCipherText = 12644736949 Describe "Alice gives Bob her public key for that he can send her an encrypted message." { It "Bob types his message ('<PlainText>') in plaintext and runs it thru a simple-substitution cipher algorithm. Should return ciphertext value of: <ExpectedResult>" -TestCases @(@{ PlainText = $script:PlainText ExpectedResult = $script:CipherText }) { Param($PlainText, $ExpectedResult) $Results = ConvertTo-CipherText $PlainText $Results | Should -Be $ExpectedResult } It "Bob then takes ciphertext (<CipherText>) and runs it thru the RSA encryption algorithm with Alice's public key (e and n). Should return encrypted ciphertext in the value of: <ExpectedResult>" -TestCases @(@{ CipherText = $script:CipherText PublicKey = $script:AlicesKeys.e N = $script:AlicesKeys.n ExpectedResult = $script:EncryptedCipherText }) { Param($CipherText, $PublicKey, $N, $ExpectedResult) $Results = ConvertTo-PublicEncryptionValue -CipherText $CipherText ` -PublicKey $PublicKey -N $N -Verbose $Results | Should -Be $ExpectedResult } It "Alice receives Bob's encrypted message (<EncryptedCipherText>) and sends it thru the RSA decryption algorithm. Should return Bob's ciphertext value which is: <ExpectedResult>" -TestCases @(@{ EncryptedCipherText = $script:EncryptedCipherText PrivateKey = $script:AlicesKeys.d N = $script:AlicesKeys.n ExpectedResult = $script:CipherText }) { Param($EncryptedCipherText, $PrivateKey, $N, $ExpectedResult) $Results = ConvertTo-PrivateDecryptionValue -EncryptedCipherText $EncryptedCipherText ` -PrivateKey $PrivateKey -N $N -Verbose $Results | Should -Be $ExpectedResult } It "Alice takes the ciphertext (<CipherText>) and runs it thru the simple-substitution cipher's decode (inverse) algorithm to get the plaintext message of: '<ExpectedResult>'" -TestCases @(@{ CipherText = $script:CipherText ExpectedResult = $script:PlainText }) { Param($CipherText, $ExpectedResult) ConvertTo-PlainText $CipherText -Verbose | Should -Be $ExpectedResult } } |