Problems with X509Store Certificates.Find FindByThumbprint

Question

I\'m having a problem when I use the method X509Store.Certificates.Find

public static X509Certificate2 FromStore(StoreName storeName, 
                  


        

Answer 1

I fell victim to this. Not only was there a Unicode "left-to-right" character in the Windows console snap-in display of the thumbprint, but it also had lowercase hex characters, with spaces between every two characters. The output of CertUtil also had lowercase characters, and spaces. To get a match, I had to specify the findValue as a string which has been transformed to

1. Remove the leading special character,
2. Remove the whitespace between character clusters,
3. Change all the characters to uppercase.