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(Classic ASP) Duplicate openssl dgst -sha256 -sign private.pem -out sha256.sig in.datDemonstrates how to duplicate this OpenSSL command: openssl dgst -sha256 -sign private.pem -out sha256.sig in.datThe in.dat file can contain text or binary data of any type. The OpenSSL command does the following:
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body> <% ' This example requires the Chilkat API to have been previously unlocked. ' See Global Unlock Sample for sample code. set pkey = Server.CreateObject("Chilkat_9_5_0.PrivateKey") ' Load the private key from an PEM file: success = pkey.LoadPemFile("private.pem") If (success <> 1) Then Response.Write "<pre>" & Server.HTMLEncode( pkey.LastErrorText) & "</pre>" Response.End End If ' Load the file to be signed. set fac = Server.CreateObject("Chilkat_9_5_0.FileAccess") inData = fac.ReadEntireFile("in.dat") set rsa = Server.CreateObject("Chilkat_9_5_0.Rsa") ' Import the private key into the RSA component: success = rsa.ImportPrivateKeyObj(pkey) If (success <> 1) Then Response.Write "<pre>" & Server.HTMLEncode( rsa.LastErrorText) & "</pre>" Response.End End If ' OpenSSL uses big-endian. rsa.LittleEndian = 0 sigBytes = rsa.SignBytes(inData,"sha256") If (rsa.LastMethodSuccess <> 1) Then Response.Write "<pre>" & Server.HTMLEncode( rsa.LastErrorText) & "</pre>" Response.End End If ' Save the binary signature to a file. success = fac.WriteEntireFile("signature.sig",sigBytes) If (success <> 1) Then Response.Write "<pre>" & Server.HTMLEncode( fac.LastErrorText) & "</pre>" Response.End End If Response.Write "<pre>" & Server.HTMLEncode( "Success.") & "</pre>" %> </body> </html> |
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