RSAprivencrypt
RSAprivencrypt |
Purpose
Synopsis
function RSAprivencrypt(kfile:string, src:string, dest:string):integer
Arguments
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kfile
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File containing the private key
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src
|
Name of the file to encrypt
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dst
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Name of the file to store the encrypted document
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Return value
Length of the resulting document or
-1 in the case of an error.
Further information
1. This function can be used to encrypt a document using an RSA private key (with PKCS1 as the padding algorithm). Decryption will be done using function
RSApubdecrypt with the help of the corresponding RSA public key.
2. The algorithm used here cannot handle documents larger than
(RSAgetkeysize(kfile)/8-11) bytes. It is usually used to generate a digital signature from a message digest.
Related topics
Module