Get-Sha1HashFile.ps1

1. <# 
2. .SYNOPSIS 
3.     This script uses the SHA1 Crypto Provider to hash a file 
4. .DESCRIPTION 
5.     This script uses SHA1 Cryptoprovider to hash a file and print the hash. A second 
6.     hash is created of the same file, but with a space added. The file I picked is a 
7.     large text file I keep in c:\foo for uses like this! 
8. .NOTES 
9.     File Name  : Get-Sha1HashFile.ps1 
10.     Author     : Thomas Lee - tfl@psp.co.uk 
11.     Requires   : PowerShell Version 2.0 
12. .LINK 
13.     This script posted to: 
14.         http://www.pshscripts.blogspot.com 
15.     Posted to TechEd Sample Gallery at: 
16.  
17. .EXAMPLE 
18.     PSH [C:\foo]: .\Get-Sha1HashFile.ps1 
19.     Hashing     : C:\foo\gd.txt 
20.     Results in  : 760bb67356560232 
21.     Hashing     :  C:\foo\gd.txt + space 
22.     Results in  : 4f7b4902168bba7d 
23.      
24. #> 
25.  
26. # Create Input Data 
27. $file       = (ls c:\foo\*.txt | sort -descending length)[0] # get largest file 
28. $filestr    = Get-Content $file 
29. $filebytes1 = [System.Text.UnicodeEncoding]::Unicode.getbytes($files) 
30. $filebytes2 = [System.Text.UnicodeEncoding]::Unicode.getbytes($files+" ") 
31.  
32. # Create a New SHA1 Crypto Provider 
33. $sha = New-Object System.Security.Cryptography.SHA1CryptoServiceProvider 
34.  
35. # Now hash that 
36. $result1 = $sha.ComputeHash($filebytes1) 
37. "Hashing     : {0}" -f $file.FullName 
38. "Results in  : {0}" -f [system.BitConverter]::ToUint64($result1,0).tostring("x") 
39.  
40. $result2 = $sha.ComputeHash($filebytes2) 
41. "Hashing     : {0}" -f " $($file.FullName) + space" 
42. "Results in  : {0}" -f [system.BitConverter]::ToUint64($result2,0).tostring("x") 

Technorati Tags: PowerShell,script,code,System.Security.Cryptography.Sha1CryptoServiceProvider

Get-Sha1Hash.ps1

1. <# 
2. .SYNOPSIS 
3.     This script uses the SHA1 Crypto Provider to hash a string 
4. .DESCRIPTION 
5.     This script creates 2 strings, and a SHA1 Crypto Provider. 
6.     The script then hashes the strings and displays the results.  
7. .NOTES 
8.     File Name  : Get-Sha1Hash.ps1 
9.     Author     : Thomas Lee - tfl@psp.co.uk 
10.     Requires   : PowerShell Version 2.0 
11. .LINK 
12.     This script posted to: 
13.         http://www.pshscripts.blogspot.com 
14.     MSDN Sample posted at: 
15.         http://msdn.microsoft.com/en-us/library/system.security.cryptography.sha1cryptoserviceprovider.aspx 
16.     Posted to TechEd Sample Gallery at: 
17.      
18. .EXAMPLE 
19.     PSH [C:\foo]: . 'E:\PowerShellScriptLib\System.Security.Crpytography\Get-Sha1Hash.ps1' 
20.     Hashing     : This is a string to hash 
21.     Results in  : z→???_r♠W??o???]rv?? 
22.   
23.     Hashing     : this is a string to hash 
24.     Results in  : ???☺$?Z??♀???????U?' 
25. #> 
26.  
27. # Create Input Data 
28. $enc = [system.Text.Encoding]::ASCII 
29. $string1 = "This is a string to hash" 
30. $string2 = "this is a string to hash" 
31. $data1 = $enc.GetBytes($string1) 
32. $data2 = $enc.GetBytes($string2) 
33.  
34. # Create a New SHA1 Crypto Provider 
35. $sha = New-Object System.Security.Cryptography.SHA1CryptoServiceProvider 
36.  
37. # Now hash and display results 
38. $result1 = $sha.ComputeHash($data1) 
39. "Hashing     : {0}" -f $string1 
40. "Results in  : {0}" -f $enc.Getstring($result1) 
41. "" 
42.  
43. $result2 = $sha.ComputeHash($data2) 
44. "Hashing     : {0}" -f $string2 
45. "Results in  : {0}" -f $enc.Getstring($result2) 

Technorati Tags: PowerShell,Script,System.Security.Cryptography.Sha1CryptoServiceProvider. GetHash