Re: How to Decrypt using Public Key?

From: Sergio Dutra [MS] (sergio_at_online.microsoft.com)
Date: 08/24/04

  • Next message: sb: "Re: Impersonating user on remote computer (ie. SSPI SQL authentication)" 
    Date: Tue, 24 Aug 2004 08:18:54 -0700

    Bell is correct. However, in certain cases - as in a digital signature - one
    encrypts with the private key so anyone can decrypt with the public key and
    verify that the document/data did indeed come from the holder of the private
    key.

    To decrypt information encrypted with the private key given a certificate,
    you need to obtain the PCCERT_CONTEXT (from enumerating the store or loading
    the certificate from a file) and then call CryptImportPublicKeyInfo, passing
    in the certificate context's PCERT_PUBLIC_KEY_INFO. 

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"Bell Kwong" <bell@79cn.com> wrote in message 
news:O5NMUrQiEHA.3664@TK2MSFTNGP12.phx.gbl...
> In general, public key is used for encryption, and private key for
> decryption.
>
>
> "Kumar" <anonymous@discussions.microsoft.com>
> $b14335c0$a401280a@phx.gbl...
>> Hi,
>>
>>   I have generated a certificate in unix/java, exported
>>   the certificate to a file. The same certificate is
>>   imported into windows.
>>
>>   Now, I have a message encrypted using private key on
>>   unix/java platform with the same certificate generated
>>   above. The encrypted message is send across to an
>>   Windows m/c in a file.
>>
>>   Can any one let me know the process of decrypting the
>>   encrypted message using the public key that i have
>>   imported into certificate store.
>>
>> Thanks & Regards,
>> -Satish
>>
>
>
  • Next message: sb: "Re: Impersonating user on remote computer (ie. SSPI SQL authentication)"

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